Answer:
Embryology is important to understanding a species' evolution, since some homologous structures can be seen only in embryo development. For example, all vertebrate embryos, from humans to chickens to fish, have a tail during early development, even if that tail does not appear in the fully developed organism.
Explanation:
Carbon, hydrogen, and oxygen can combine to form monomers called monosaccharides. Which type of macromolecule is made up of monomers that are monosaccharides?
Carbohydrate is made up of monomers that are monosaccharides.
What are Monosaccharides?
Monosaccharides are simple sugars that act as the building blocks for larger carbohydrates such as disaccharides and polysaccharides. Monosaccharides contain either an aldehyde (aldehyde sugars) or a ketone (ketone sugars) functional group and a single polyhydroxy aldehyde or ketone unit. Some examples of monosaccharides include glucose, fructose, and galactose.
Carbohydrates are organic molecules that are made up of carbon, hydrogen, and oxygen atoms. The simplest form of a carbohydrate is a monosaccharide, which is composed of a single sugar molecule. Monosaccharides are the building blocks of larger carbohydrate molecules, such as disaccharides and polysaccharides. Therefore, carbohydrates are made up of monomers that are monosaccharides.
Hence, Option C is correct.
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Plant cells produce hormones that affect plant growth and behavior. Cytokinins and auxins are two important types of plant hormones. Together, these hormones control cell division in
the plant. If cytokinin is high and auxin is low, the plant produces stems. When auxin is high and cytokinin is low, roots grow.
Plant hormones travel around plants in vessels called xylem. Hormones also move from cell to cell in plants by diffusion or active transport. Where are hormones produced in animals,
and how are they transported throughout the body?
A. Animal hormones are produced in endocrine glands and travel through the blood.
B. Animal hormones are produced in lymph nodes and travel through the lymphatic system.
C. Animal hormones are produced inside the bones and travel through the nervous system.
D. Animal hormones are produced in sweat glands and travel through the skin.
'Animal hormones are produced in the endocrine glands and travel through the blood'.
What are hormones?
Hormones are organic chemical compounds produced by the endocrine glands that are released into the bloodstream and act as messengers, traveling to different parts of the body to regulate various bodily functions. Hormones are involved in processes such as metabolism, growth and development, tissue function, sexual function and mood.
They travel through the blood because it is the most efficient way to reach the target cells in the body. The hormones have to interact with the target cells in order to have an effect, so they need to be able to reach the target cells in the quickest and most effective way possible.
Hence, Option A is correct.
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Hi i would like some help
Answer: I
Explanation:
List and describe 3 methods of jellyfish movement
Answer: To swim, the jellyfish opens its bell and then creates jet propulsion by squeezing its bell to a smaller volume. When a jellyfish contracts its body, two vortex rings (doughnuts of water rolling into themselves) are created. The first ring is shed in the wake as the jellyfish moves.
What muscles do you control the movement?
The muscles that control movement are called skeletal muscles. There are other muscles in the skeletal system as well, such as smooth muscle and cardiac muscle.
What is skeletal in biology?The skeletal system is the main framework that gives your body its shape. Bones and connective tissues including cartilages, tendons, and ligaments are the main components of the skeletal system. It is referred to as the musculoskeletal system.
What does skeletal pain feel like?People tend to explain it as their entire body aching or that their muscles feel as though they have been pulled or overworked with the most common symptoms being pain, fatigue or a disruption in normal sleep patterns. Musculoskeletal pain can affect anyone and impact all major areas of the body, including the: Neck.
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A plant converts light energy into chemical energy that is stored in its cells. A rabbit eats the plant and breaks down the nutrients through digestion. The rabbit uses the digested plant material to obtain energy and build new molecules in its cells.
Which shared characteristic of all living things is being described in this example?
Question 5 options:
Metabolism
Cellular organization
Homeostasis
Heredity
Answer:
Heredity
Explanation:
i have no idea
GL
Answer:yes it's Heredity
Explanation:
how does the movement of energy and matter through the food chain cause the average mass of the whale to change
The movement of energy and matter through the food chain causes the average mass of the whale to change because energy decreases in the major trophic levels and biomass also drops.
What is the flow of energy and matter in a food chain?The flow of energy and matter in a food chain makes reference to how they decrease in higher trophic levels from producers to major consumers.
Therefore, with this data, we can see that the flow of energy and matter in a food chain is based on the decrease as higher trophic levels are reached.
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In Metaphase, the chromosomes are all aligned in the center of the cell.
O True
O False
True. During metaphase, the chromosomes line up in the center of the cell in a process called the metaphase plate.
What do you mean by metaphase?
Metaphase is one of the stages of mitosis, the process of cell division. During metaphase, the chromosomes line up in the middle of the cell and are attached to the spindle fibers. The centrosomes, located on opposite sides of the cell, move apart and form the spindle fibers. These fibers attach to the chromosomes and pull them to the middle.
The positioning is important for the cell to accurately separate the chromosomes during the next stage of cell division, anaphase.
Hence, the statement is True.
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Which diagram correctly shows how homozygous alleles are found on homologous chromosomes?
The diagram that correctly shows how heterozygous alleles are found on homologous chromosomes is; Aa ( The first diagram )
Heterozygous alleles are different alleles gotten/inherited from the genes inherited from each parent cell ( i.e. from each parent ). while
A homologous chromosome is a pair of chromosomes containing the same gene sequence, and chromosomal length and possesses the same centromere location in each chromosome in the pair.
Hence we can conclude that The diagram that correctly shows how heterozygous alleles are found on homologous chromosomes is the first diagram ( Aa ).
Which of the following cells do not undergo telomere shortening as a result of mitosis?
O embryonic stem cells O cancer cells O somatic cells
Embryonic cell and cancer cell do not undergo telomere shortening as a result of mitosis.
Human blastocysts, an early stage of the growing embryo lasting from the fourth to the seventh day after fertilisation, include embryonic stem cells (ESCs) in the inner cell mass. They vanish after the seventh day and start to form the three layers of embryonic tissue in a normal development.
These stem cells are pluripotent, which means they can divide to create other stem cells or any form of cell in the body. Embryonic cells can be employed to rebuild or treat damaged tissue and organs because of their adaptability.
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Many whole families died when the plague hit Europe. Since the bite of a flea was the main transmission of plague, how did it MOST likely spread to the rest of the family?
A.
Every person would have to be bitten by an infected flea.
B.
The plague was passed through contaminated water and sewage.
C.
If the family were in close contact with the sick person’s boils, they could get the bacteria.
D.
If the plague had spread to the lungs and a person coughed, it could spread to others.
The cells in the image are drawn here as cubes to represent their volume to surface area. Which cell would be the LEAST efficient at maintaining homeostasis?
A, D - it will take too long to exchange gases
B, D - it will be able to carry out fewer cell processes in the larger space
C, A - it will be able exchange gases quickly
D, A - it will loose nutrients too fast
Answer: it c
Explanation:
Among all the given options, the correct option is option C that is C, A - it will be able exchange gases quickly.
What is homeostasis?Any self-regulating mechanism called homeostasis helps biological systems to ensure stability while responding to environmental factors that are best for survival.
If homeostasis is achieved, life goes on; if it is not, tragedy or death result. The stability obtained seems really a dynamic equilibrium, where circumstances are mostly uniform yet change is constant. Any system that is in dynamic equilibrium will eventually establish a stable balance that is resistant to external pressures of change.
The cells in the image are drawn here as cubes to represent their volume to surface area. C, A - it will be able exchange gases quickly, would be the least efficient at maintaining homeostasis.
Therefore, the correct option is option C.
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Please help me answer the fallowing questions with its pathogen.
Virus/Sars_cov-2/Covid-19
Bacteria/Salmonella/infection
Fungus/Candida/thrush
Virus/Varicella-zoster virus/chickenpox
virus/Zika virus/infection
Bacteria/N. gonorrhoeae/STD
Virus/Hiv/AIDS
Please Note: If my answers are wrong, please spare me because im only 11 years old (grade 6)
Classify whether each gene regularly exists in a hemizygous state Regularly hemizygous:
Not regularly hemizygous: Answer Bank agene on chromosome 21 in an individual with Down syndrome a color-blindness gene on the X chromosome in normal human male a transgenic gene inserted into only one chromosome of mouse a color-blindness gene on an X chromosome in normal human female
Regularly hemizygous:
The gene for color blindness on her X chromosome in normal humans. a transgenic gene that is inserted into only one mouse chromosome
Not regularly hemizygous:
A colorblind gene on her X chromosome of a normal human female. A gene on chromosome 21 in people with Down syndrome
The main difference between homozygote and hemizygote is that homozygote is the state in which both alleles are the same in a diploid organism, whereas hemizygote is the state in which only one allele is present. about it. Genes exist as alleles or copies. In general, the gene has two alleles of her.
Females are not considered hemizygous A disease caused by a gene on the X chromosome because females have two copies of the X chromosome and males have only one (hemizygote) (most of which are X-linked recessive genes) primarily affect males.
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Which of the following organs is NOT required for the complete synthesis of activated vitamin D?
1) Skin
2) Liver
3) Kidney
4) Small intestine
Small intestine is NOT required for the complete synthesis of activated vitamin D
A derivative of the steroid cholesterol is converted in the skin to a form of vitamin D3 when sunlight is present. Cholecalciferol is transformed by the liver into calcidiol, which is then changed by the kidneys into calcitriol (an activated vitamin).
The active form of vitamin D (calcitriol), is produced by the skin, liver, and kidneys and aids in preserving healthy levels of calcium and phosphorus in the blood.
When exposed to ultraviolet light from the sun, a cholesterol-derived molecule in the skin is transformed into vitamin D.
To become calcitriol, vitamin D goes through additional chemical alterations, first in the liver and subsequently in the kidneys which keeps the levels of calcium and phosphorus in the blood regular, calcitriol acts on the colon, kidneys, and bones.
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Why is bottom trawling damaging to the seafloor?
Answer:
Bottom trawling is damaging to the seafloor because it involves dragging heavy nets across the seafloor, which can disturb or destroy seafloor habitats, such as coral reefs and seagrass beds. This can also lead to a decrease in the abundance and diversity of marine life that lives on or near the seafloor.
Explanation:
Match the type of molecule that is involved in gene expression with the appropriate description.
A) Structural RNA that links an amino acid to an anticodon--tRNA
B) Contains information to be translated (as codons)--mRNA and Gene
C) Forms part of the enzyme that drives translation-- ribosomal protein and ribosomal RNA.
The transfer RNA is described in the section beginning with the letter A. (tRNA). Transfer RNA is a molecule that has the job of matching an anticodon at the end of tRNA with the amino acid it codes for. The corresponding codon's anticodon is complementary to it.
Statement B) describes both mRNA and genes, and vice versa. A transcript of the DNA sequence is found in the messenger RNA (mRNA) molecule. Genes, on the other hand, are sequences that contain the genetic data required to produce proteins. The translation process needs that information.
Lastly, explanation C) is a component of both ribosomal RNA and protein. They are both components of a ribosome, a substantial and intricate enzyme. The translation is carried out by ribosomes.
Complete question:
Match the type of molecule that is involved in gene expression with the appropriate description.
Types of molecules:
Ribosomal protein
tRNA
Ribosomal RNA
mRNA
Gene
Descriptions:
A) Structural RNA that links an amino acid to an anticodon.
B) Contains information to be translated (as codons).
C) Forms part of the enzyme that drives translation.
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Each phosphodiester linkage in DNA or RNA includes a phosphate joined by covalent bonds to
(a) two bases
(b) two sugars
(c) two additional phosphates
(d) a sugar, a base, and a phosphate
(e) a sugar and a base
Option b is Correct. In DNA or RNA, a phosphate is connected to two sugars by covalent bonds to form each phosphodiester linkage.
The 5' carbon of one sugar (deoxyribose or ribose) and the 3' carbon of another sugar molecule are joined to form the phosphodiester linkage in DNA or RNA (deoxyribose or ribose). Consequently, two sugar molecules form the phosphodiester bond.
The 3' carbon atom of one sugar molecule and the 5' carbon atom of another, deoxyribose in DNA and ribose in RNA, are linked by a phosphodiester bond in DNA and RNA. Over two ester linkages, two pentoses with five carbons each create strong covalent bonds with the phosphate group.
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Buckthorn is a medium size nonnative shrub species that has been introduced to many wooded areas in Minnesota. It grows rapidly and produces many berries with seeds. Buckthorn blocks light, and crowds out many native plant species, It interferes with habitat and nesting sites for many small animals. This is an example of...
a. random dispersion pattern
b. an abiotic factor having a negative effect of the community in an ecosystem
c. an unintended consequence of adding an organism to an ecosystem
d. the introduction of a species that has added to the health of and diversity of an ecosystem
The addition of buckthorn results into blocking of the light. This is an unintended consequence of adding an organism to an ecosystem. Thus, the correct option is C.
What are the consequence of addition of species?Invasive species is also called as introduced species or alien species which significantly modifies or disrupts the ecosystem in which it colonizes. Such species may arrive in the new areas through various ways such as natural migration, however they are often introduced by the activities of other species such as humans and other higher animals.
Invasive species are capable of causing extinctions of the native plants and animal species, reducing the biodiversity, competing with native organisms for the limited amount of resources, and altering habitats.
Therefore, the correct option is C.
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which of the following is a benefit gained from learning how to sequence dna?
a) identification of faulty genes
b) development of treatments for diseases
c) modification of crops to increase yields
d) understanding of our evolutionary history
e) All of the answer choices are benefits gained from DNA sequencing.
The correct answer is option e (All the mentioned statements are benefits gained from the technique DNA sequencing)
DNA sequencing uses a variety of biochemical techniques to establish the nucleotide order (A, G, C, T). Any gene sequence can be used to determine the purpose of the proteins that are made by that gene. Additionally, if a mutation occurred in the DNA, the changed base can also be recognized. This allows for easy identification of the defective genes that cause any disease in any organism using DNA sequencing.
Additionally, DNA sequencing can be used to identify and treat any disease. The researcher can control that gene or a specific portion of that gene for any potential treatment by knowing the relevant mutation or variant.
Additionally, it enables crop customization to boost production. The function of any gene can also be ascertained by knowing its sequence. Genetic engineering can control a number of genes that cause illness in plants to boost production.
Given that DNA sequencing has previously been used to anticipate the whole human genome sequence, sequencing techniques also aid in our understanding of evolution. It can be used to determine the order of other organisms as well as the sequence of their ancestors.
The evolutionary relationship between organisms can be anticipated by analyzing their evolutionary sequences.
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Does the differential heating of Earth's surface cause wind on a global scale?
Large-scale global wind patterns are also created by the unequal heat of the Earth's surface. The sun shines nearly overhead for the majority of the year in regions close to the equator.
What is Earth's surface made of?Earth's crust is made of igneous, crystalline, and sedimentary rocks, which range in composition from mud and clay through diamonds and coal. Igneous rocks, which are created as magma cools, are the most prevalent kind of rocks in the crust. Igneous rocks including such granite and basalt are abundant in the crust of the Earth.
What distinguishes the surface of the Earth?Earth's huge seas, which make up 70% of the planet's surface, are arguably its most notably distinctive feature. The only planet in our solar system that still has liquid water on its surface is Earth. Oceans may have existed on Mars and Venus in the past, but they are thought to have long since vanished.
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From the following list, select the three methods that could help prevent habitat destruction.
assessing the environmental impact
careful clearing before building structures
building fencing along roadways
avoiding high traffic migratory areas
using proper filters
installing sound barriers
researching the condition of populations
The three methods that could help prevent habitat destruction are:
1. assessing the environmental impact
2. careful clearing before building structures
4. avoiding high traffic migratory areas
What is the methods about?The three methods that could help prevent habitat destruction are:
Assessing the environmental impact: This method involves evaluating the potential impact of a project or activity on the surrounding habitat and wildlife, and making adjustments to minimize or mitigate that impact.
Careful clearing before building structures: This method involves removing only the necessary trees and vegetation when building structures, rather than clear-cutting an entire area.
Avoiding high traffic migratory areas: This method involves identifying areas where wildlife commonly migrates, and avoiding those areas or taking steps to minimize the impact of human activities on those areas.
Therefore, These methods are all aimed at protecting habitats and preserving them for wildlife, and all of them are important in preventing habitat destruction.
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Answer: The correct choices are:
assessing the environmental impact
careful clearing before building structures
researching the condition of populations
Explanation: These options were confirmed correct.
which way of refining the model would best address this limitation
The best way of refining the experimental model would be to address limitations such as the increase in sample size, introduce better control groups, use better equipment, advance techniques, improve the experimental design, etc.
What are the limitations of the experiments?The experiment has several limitations, including the sample size, the use of appropriate control groups, the use of cutting-edge technologies, and the sensitive analysis that should be performed for a better quality check.
Hence, the best way of refining the experimental model would be to address limitations such as the increase in sample size, introduce better control groups, use better equipment, advance techniques, improve the experimental design, etc.
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which statement describes a difference between prokaryotic and eukaryotic cells
Answer:
Eukaryotic cells have flagella, while prokaryotic cells do not.
Which of the following choices is not a source of information for scientists studying ancient patterns of climate change?
sedimentary rocks
O mountain glaciers
Oice cores
All of these choices are sources of information for scientists studying ancient patterns of
climate change.
Researchers use data from physical, molecular, and biological materials that have been preserved in the geologic record to study climate before the past 100 to 150 years. Organisms like coral, forams, and diatoms can be helpful climate proxies.
What really is sedimentary rock and an illustration?Shale, limestone, and sandstone are examples of common sedimentary rocks. These rocks frequently begin as sediment that rivers carry and deposit in oceans and lakes. When interred, the sediments evaporate their water and solidify to form rock.
What is a glacier on a mountain?Snowfalls that continue to fall year after year before fully melting form mountain glaciers. Cold summers and significant winter snowfall are necessary for the accumulation of snow that eventually turns into glacier ice.
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why do different individuals of the same species have different traits
Answer: variation among individuals of the same species can be explained by both genetic and environmental factors.
estion #6 - Paragraph
Galaxy #6
To which category does galaxy #6 belong? Why does it belong in this category?
Galaxy #6 belongs to the category of spiral galaxies. Spiral galaxies are marked by a central bulge surrounded by a flat disk of stars and gas, with a spiral arm structure that extends out from the center.
What is category?Category is a way of organizing information, items or topics into specific groups based on shared characteristics. Categories help to make it easier to identify, sort and store items or topics and make it easier to find what you are looking for.
Galaxy #6 is a barred spiral galaxy, which means that it has a bar of stars and gas that runs through its center, in addition to the typical spiral arm structure. The bar allows material in the galaxy to move more freely, allowing for faster star formation, and can also be used to measure the galaxy’s mass. This structure, combined with the presence of spiral arms, makes Galaxy #6 a spiral galaxy.
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two closely related birds live on seperate islands and do not interbreed what type of isolation is occurring
When two closely related birds live on separate islands and do not interbreed, the temporal isolation is occurring.
What do you mean by temporal isolation?Temporal isolation is a type of reproductive isolation mechanism among sexual organisms in which the differences in the timing of critical reproductive events prevent members of closely related species.
Temporal isolation happens when two or more species reproduce at different times. For example, three species of orchid live in the same rain forest. Each species has flowers that last only one day and must be pollinated on that day to produce seeds.
One prezygotic reproductive barrier is temporal isolation. Temporal isolation means 'isolated in time,' so this is a mechanism that prevents species from mating because they breed at different times.
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explain details all process of phosphorous cycles?
Answer:
The biogeochemical cycle known as the phosphorus cycle describes how phosphorus moves across the Earth's ecosystem. All living things require phosphorus as a necessary nutrient, and it is required for many biological functions including DNA synthesis, energy transmission, and cell division.
Explanation:
The phosphorus cycle has several key steps, including:
Weathering: Phosphorus is present in rocks and minerals, and weathering processes such as erosion and dissolution release it into the soil and water.
Adsorption: Once in the soil, phosphorus can be adsorbed (attached) to clay and organic matter particles, making it less available for plant uptake.
Uptake by plants: Phosphorus is taken up by plants through their roots and used for growth and metabolism.
Animal uptake: Animals consume plants and incorporate the phosphorus into their own bodies for growth and metabolism.
Decomposition: When plants and animals die, their bodies are broken down by decomposers, releasing the phosphorus back into the soil.
Leaching: Some of the phosphorus in the soil can be leached (washed out) into waterways and oceans by rainwater and irrigation.
Deposition: Phosphorus can be deposited into sediments and sedimentary rocks through precipitation of minerals such as apatite.
Human activities: Human activities such as mining, agriculture, and waste disposal can also affect the phosphorus cycle by releasing large amounts of phosphorus into the environment and altering natural processes.
The phosphorus cycle is relatively slow because phosphorus is not readily transformed between different forms and it is mostly stored in rocks and soil, unlike the other elements cycles such as carbon and nitrogen that are more dynamic and have a faster turnover.
Identify the:
7. Control Group
Homer notices that his shower is covered in a strange green slime. His friend Barney tells him that coconut juice will get rid of the green slime. Homer decides to check this out by spraying half of the shower with coconut juice. He sprays the other half of the shower with water. After 3 days of "treatment" there is no change in the appearance of the green slime on either side of the shower. Identify the:
The first thing that was noticed was green slime. Some other part of the bathtub that was sprayed with water serves as the control group.
Describe green slime.Cyanobacteria are the cause of the green slime. Water-dwelling creatures called cyanobacteria use the sun's energy to make their own energy (photosynthesis). They can be discovered practically everywhere on Earth, from momentarily wet rocks in grasslands to oceans and lakes.
What is the purpose of green slime?This is the works team green sludge shock O-ring grease from team associated. This specifically designed lubricant helps reduce shock oil leakage from the shocks and delivers smoother shock action by improving the seal here between shock shafts and indeed the shock O-rings.
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