Answer:
Broadly speaking, different species are unable to interbreed and produce healthy, fertile offspring due to barriers called mechanisms of reproductive isolation. These barriers can be split into two categories based on when they act: prezygotic and postzygotic.
Explanation:
So the answer would most likely be C.
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magnetite is________that acts like a magnet
A.a compass
B.an electric circuit
C.a mineral
D.a planet
Answer:
C. a mineral
Explanation:
magnetite is a naturally-occuring mineral found in the lithosphere. Like other metals (such as iron), it has electromagnetic properties.
Select all the correct answers.
The image shows a week-old chick embryo. What can you conclude about its current stage of development?
A spinal column is present.
The chick will develop four limbs and a beak.
It's an invertebrate.
It's sexually mature.
It's about to undergo a metamorphosis,
Answer:
spinal column is present.
B] The chick will develop four limbs and a beak.
C] It's an invertebrate.
D] It's sexually mature
E] It's about to undergo a metamorphosis.
PLS HELP I NEED THIS BY TODAY ASAP
Adaptations that result from natural selection are expected to increase
the fitness of an organism. In terms of natural selection, which of the
following best describes fitness?
A Being able to escape from predators
B Being among the strongest organisms in a population
C Being able to survive, find a mate, and produce offspring
D Being able to survive long enough to reach the adult stage
Answer:C Being able to survive, find a mate, and produce offspring
The fitness that should be explained when being able to survive, also find the mate and it generated the offspring. Hence. option c is correct.
What is fitness?It is considered as the health and its well-being. It is the capability for performing that should be based on sports, occupations, and day to day activities.
It is generally accomplished via proper nutrition, physical exercise, proper sleep.
Therefore we can conclude that the option c is correct.
And, the rest of the options are considered to be wrong.
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what are the reactants of the krebs cycle?
Answer:
The only reactants of the Krebs cycle proper are acetyl CoA and the four-carbon molecule, oxaloacetate.
How will increased temperatures affect water in California?
Answer:
Rising temperatures also increase the rate at which plants transpire water into the air to keep cool, so irrigated farmland would need more water.
Explanation:
Which of the following is a function of proteins?
(2 points)
repairs body tissue
speeds up chemical reactions
prevents infections & illness
all of the above
Which of the following occurs when a small group of individuals leaves a population
and establishes a new one in a geographically isolated region?
A. Genetic drift
B. Natural selection
C. Non-random mating
D. Gene flow
answer is A
Explanation:
A. Genetic drift
What would happen to food chain save all the plans died out justify your answer
Answer:consumers include herbivores, carnivores, and decomposers. If the plants or other producers of an ecosystem were removed, there would be no way for energy to enter the food web, and the ecological community would collapse.All living organisms hold a place in the food chain, structured around the transfer of life-sustaining energy through an ecosystem: from sunlight to plant to rabbit ...
Hope this helps have a awesome night/day❤️✨Explanation:
Students use alphabet letters to represent the genetic instructions for a trait of an organism. The students write these alphabet letter in graphic organizers. The students are trying to show genetic instructions passing from parent to offspring.
Which graphic organizer does NOT represent asexual reproduction?
Answer:
It’s B
Explanation:
Classify each planet as an inner planet or an outer planet.
____ currents inside Earth might drive plate motion.
a.
Vertical
c.
Horizontal
b.
Convection
d.
none of the above
Please select the best answer from the choices provided
Answer:
B. Convection
Explanation:
IS IT WEATHERING, EROSION, OR DEPOSITION?
Over time, the running water wears down rocks, making them smooth.
Answer:
Weathering
Explanation:
The answer is weathering because, weathering is the breaking or wearing down of rocks, soil, minerals, and wood. The water wore down the rock, making it smooth, so it connects to the definition that i just gave you.
Hope it helped!
Humans burn fossil fuels and wood, releasing carbon dioxide into the atmosphere. This carbon dioxide is then absorbed by trees for photosynthesis. These processes are contributory to which chemical cycle?
Carbon cycle controls the amount of carbon dioxide in the atmosphere. These processes are contributory to the carbon cycle in the environment.
What is a carbon cycle ?
The carbon cycle is nature's method of recycling carbon atoms, which repeatedly go from the atmosphere into Earth's living things and back into it. The majority of carbon is preserved in rocks and sediments; the remainder is preserved in the ocean, the atmosphere, and living things.
Life on Earth is reliant on the carbon cycle. The quantity of carbon that is naturally released from reservoirs is equal to the amount that is naturally absorbed by reservoirs because nature tends to maintain carbon levels in balance. This carbon balance must be preserved for the earth to continue to support life.
Therefore, the carbon cycle is an important chemical cycle.
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HELLLLPPPPPPPPPPP HURRY
Answer:
A
Explanation:
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What would happen to food chains if all the plants died out ?justify your answer.
Answer: there would be no way for energy to enter the food web, and the ecological community would collapse.
Explanation:
everything would die because its a domino effect
Answer:
There would be no way for animals to get the energy they would need so all of the animals would get sick, and if other animals ate them they would get sick and the food chain would start dying.
Explanation:
plants retain their leaves year round.?
mitosis and cell cycle definition
Answer:
mitosis definition: a type of cell division that results in two daughter cells each having the same number and kind of chromosomes as the parent nucleus, typical of ordinary tissue growth.
cell cycle definition: A cell cycle is a series of events that takes place in a cell as it grows and divides. A cell spends most of its time in what is called interphase, and during this time it grows, replicates its chromosomes, and prepares for cell division.
Name THREE products in the food industry that are produced by biotechnology
In molecular compounds molecules bonded tk gether by____
a) covalent bond
b)metallic bond
c)ionic bond
d)none of them
Answer:
a) Covalent bond
Explanation:
Atoms of different element are held together in molecules by covalent bonds in which atoms share their valence electrons with each other.
What is the role of the fungus in the food web shown?
boa constrictor
beetle
coati
poison dart frog
sloth
strangler fig
fungus fruit bat
O A. To break down organic matter into carbon dioxide and water
B. To break down food molecules in the absence of oxygen
C. To convert light energy into chemical energy organisms can use
D. To gather green light in order to carry out photosynthesis
The role of fungus in the food web shown is to break down organic matter into carbon dioxide and water. The correct option is A.
What is fungus?Fungus is a eukaryotic organism. They grew in soils and wood and moist and dark places. Fungi break down the material. While consuming the nutrients in the decaying matter, they produce enzymes that break down the material.
The biomass would be overrun with the dead matter without the majority of fungi, which is why they are helpful. Bacteria and actinomycetes are some additional decomposers. They act as nature's recycling machine by consuming animal carcasses, bones, dead plants, and various minerals thanks to their enzymes.
Therefore, the correct option is A. To break down organic matter into carbon dioxide and water.
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How much force would a shot putter need to make a 5.5 kg shot accelerate at 8 meters per so one squared
Answer:
44 N
Explanation:
Force applied can be calculated using the formula as follows;
F = m.a
Where;
F = force (Newton)
m = mass (kg)
a = acceleration (m/s²)
According to the information provided in this question, mass of shot put = 5.5kg, acceleration = 8m/s². Hence;
F = m × a
F = 5.5 × 8
F = 44 Newtons
The force needed by the shot putter is 44N.
why is being heterozygous for sickle cell anemia considered an advantage?
Answer: They may be maintained by heterozygote advantage
For example, the allele that causes sickle cell anemia is deleterious if you carry two copies of it. But if you only carry one copy of it and live in a place where malaria is common, the allele is advantageous because it confers resistance to malaria.
Explanation:
Hope this helped
why aren't scientific theories just called facts?
Answer:
Explanation:
Is this a question or a joke?
why is the late Cambrian thought of as the period of the greatest evolutionary change in life forms on earth's history?
Answer:
The Cambrian Period marks an important point in the history of life on Earth; it is the time when most of the major groups of animals first appear in the fossil record. This event is sometimes called the "Cambrian Explosion," because of the relatively short time over which this diversity of forms appears.
What is the function of the nucleus within a cell?
Answer:
It is responsible for protein synthesis, cell division, growth and differentiation.
Answer:
The nucleus controls and regulates the activities of the cell (e.g., growth and metabolism) and carries the genes, structures that contain the hereditary information. Nucleoli are small bodies often seen within the nucleus.
Explain how you are dependent upon at least one biotic and one abiotic factor.
Answer:
Biotic: We are dependent on plants, because we need them to eat.
Abiotic: We are dependent on water, because we need water to hydrate.
Hope this helps! <3
An example of a biotic and an abiotic factor that humans depend on are -
Biotic factor - plantsAbiotic factor - oxygenThe biotic factor is a factor that presents in an ecosystem that are living organisms and help in making and shaping ecosystems such as plants, animals, fishes, and others.
Human depends on the other organism mostly on plants for their food and energy as they can not produce their food.The abiotic factor is the nonliving factor that interacts with the living organism or biotic factors to regulate and shape the ecosystems. It includes the carbon cycle, water, oxygen, temperature, and many others.
Humans depend on oxygen for their cellular respiration that provides energy for all essential cellular functions and without oxygen, there is no life present.Thus, the correct examples are:
Biotic factor - plantsAbiotic factor - oxygenLearn more about biotic and abiotic factors:
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Which is NOT true of magnetic
domains?
A. Magnetic domains are groups of aligned
atoms.
B. Magnetic domains are too small to be seen.
C. Magnetic domains are outside of a magnet.
The study of magnetic domains is defined as the micro magnetics. The Magnetic domains are outside of a magnet is not true. The correct option is C.
What is a magnetic domain?A magnetic domain is defined as a region within a magnetic material in which the magnetization is in a uniform direction. This indicate that the individual magnetic moments of the atoms are aligned with one another and they point in the same direction.
The magnetic domain structure is responsible for the magnetic behavior of ferromagnetic materials like iron, nickel, etc. The domains are found to be oriented randomly if there is no external magnetic field.
Thus the correct option is C.
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WILL GIVE BRAINLIEST
which of the following situations best displays a direct effect of a flood?
a.) a change in building regulations
b.) the destruction of a neighborhood
c.) the creation of new levees for future protection
d.) trough of wave arrives fast exposing the sea floor
Answer:
b.
Explanation:
Cattle egrets forage (feed) in fields among cattle. The egret gets easy access to flying insects stirred up
by the cattle, and the cattle don't care if they are there or not.
A.Mutualism
B.Commensalism
C.Parasitism
Answer:
B.
Explanation: