yall biology is not it i really need help with it
hello help please i’ll mark brainliest!!!
B. Consisting of billions of galaxies
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The chemical colchicine is used in the production of karyotypes. Colchicine prevents spindle fibers from forming during the cell cycle. What is a result of preventing spindle fibers from forming? Answer
A The cell cycle skips G1 phase
B Mitotic division is skipped, and the cell cycle proceeds to cytokinesis.
C Mitotic division stops in metaphase and cannot proceed to anaphase.
D The cell cycle skips S phase and proceeds to G2 phase.
Answer: the correct answer is C
Explanation:
Preventing the formation of spindle fibers makes the mitotic division stop in metaphase, and thus fail to proceed to anaphase.
• Colchicine prevents the polymerization of the microtubule, and thus, prevents the arrangement of the mitotic spindle, which shows the prevalence of another checkpoint in the cell cycle.
• As a result, the activity of the maturation promoting factor remains high, the chromosomes stay condensed, and the nuclear envelope fails to redevelop.
• A toxic effect is exerted on the living cells by the colchicine, which usually results in the arrest of the process of mitosis at an eventual stage, generally the metaphase, with the generation of unusual and bizarre nuclear configurations, and thus, resulting in the death of the cell.
Thus, the correct answer is option C.
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A h0m0zygous dominant brown mouse is crossed with a heterozygous brown mouse (tan is the recessive color). What percent will be h0m0zygous?
0%
50%
75%
25%
25%
Answer:
75%
Explanation:
Answer:
50%
Explanation:
I wasn't given which way to do this, so ill presume h0m0zygous dominant is female for convenience
[tex]\left[\begin{array}{ccc}&B&B\\B&BB&BB\\t&Bt&Bt\end{array}\right][/tex]
of the offspring, any one of them will have a 50% chance to be h0m0zygous dominant, two of the same genotype; and a 50% chance to be heterozygous
Urgent! question is attached, thankyou so much
Answer:
C; Oxygen concentration
Explanation:
Oxygen is product, not a reactant in photosynthesis. Light and carbon dioxide are reactants, and extreme temperatures can denature the plant.
What would happen to the geosphere if there was no hydrosphere? Think of weathering and erosion
Answer:
Without oceans and land (hydrosphere and geosphere), there would be no wind (as winds are produced by differences of air temperature between the land and oceans). This rock cutting shows the rocks that have formed on the surface of the Earth. Last of all, without the geosphere, there would be no world to live on!
Explanation:
How does a visking tubing differ from a cell membrane
Join the following terms:
Answer:
The Viking tubing is meant to be the cell membrane. Glucose manages to move out of the bag and into the surrounding water but starch does not. Not all substances can pass through the cell membrane; some molecules, like starch are too large. The cell membrane is called selectively permeable because of this.
Explanation:
hii pls help i’ll give brainliest if you give a correct answer tysm
The kingdom that does contain autotrophs is
A. Archae
B. Eubacteria
C. Plantae
D. Fungi
Answer:
The answer is C. the Plantae Kingdom.
Explanation:
They are multicellular, autotrophic organisms.
Answer:
D
Explanation:
The kingdom that does contain autotrophs is Fungi.
Which two fields of study provide the core information that is used to classify organisms?
Please help me with this question
TRUE or FALSE: “ The change from a T to a C at position 3 caused all the changes that exist between the cichlid and the coelacanth/frog.” Explain your answer.
In this passage, Jackson suggests that a country
made up of American Indians would be
an uncivilized wasteland.
open to white settlement
just as good as a country made up of whites.
Answer: A) An uncivilized wasteland.
Explanation: I did the assignment.
Answer:
an uncivilized wasteland.
Explanation:
edge 21
Can someone help me with the ENVIRONMENT, please
Answer:
kcmscmkndskckdnkcnkdnkenkdnksadnakncksnc
Explanation:
please answer! (sry)
What would the offspring of chicken look like if feather color were inherited through co dominance?
4. Which of the following carbon compounds stores and transmits hereditary information?
nucleic acids
lipids
carbohydrates
proteins
Answer:
the correct answer is nucleic acids
Explanation:
hope u get a do over on ur test
What do surface current affect !!!!
Answer:
Surface currents affect climate by moving cold and warm water around the globe. In general, currents carry warm water from the tropics toward the poles and bring cold water back toward the equator. A surface current warms or cools the air above it, influencing the climate of the land near the coast.
Explanation:
plz help and dont take the points
Which graphic organizer best represents asexual reproduction? Which graphic organizer best represents sexual reproduction? Explain your answers.
The one with one parent and five offspring represents asexual reproduction. Asexual reproduction only requires one parent, so the offspring are genetically identical to the parent. The advantage is that organisms can reproduce much quicker using this method.
The organizer with two parents and one offspring represents sexual reproduction. Again, sexual reproduction requires two parents.
Why don’t we include viruses when we discuss reproduction?
Answer:
Viruses latch onto other cells (host cells) in order to reproduce. They do not reproduce by themselves. Instead, they use another cell to repopulate.
Explanation:
I hope this is correct. ;w;
Select ALL the correct descriptions that help to define luminosity.
A. How much energy is emitted per second
B. How much surface area the object has
C. The amount of brightness of an object
D. The color emitted by the start
The correct descriptions that help to define luminosity are How much energy is emitted per second, How much surface area the object has, and The amount of brightness of an object.
What is the energy content of luminosity?An object's luminosity, which is the quantity of energy it emits over a predetermined period, is a measurement of its inherent brightness. Since it simply measures the object's power output, it can be expressed in units like Watts.
What factors affect luminosity?A star's luminosity, or the total amount of energy it emits each second, is determined by two factors: The stellar photosphere's "Effective Temperature," T. the star's total surface area, which is influenced by its radius, R.
What three things have an impact on luminosity?The size, temperature, and distance of a star are the three variables that determine how bright it seems to us on Earth. The brilliance of a star is measured by its magnitude.
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Need help figuring this out! Am having a bit of trouble with it
Explanation:
BB=Brown as both are big B's
Bb=Brown as there is a big B
bb=Blue as both are little b's
A carrier of a genetic disorder who does NOT show symptoms but who CAN pass on a disease to his or her offspring would have which of the following genotypes? *
A. BB
B. bb
C. Bb
D. there is not enough information to answer this question
which one^
Help :))) I’m probably gonna make brainliest
Answer:
the answer is A
Explanation:
Answer: Its A ( active sites )
Explanation:
True or false. Without wind there would be no weather.
Answer: Absent a gentle breeze or mighty gale to circulate both warm and cold weather around the Earth, the planet would become a land of extremes. Areas around the Equator would become intensely hot and the poles would freeze solid. Whole ecosystems would change, and some would completely disappear.
What can a person do to prevent barriers to exercise? Select three options.
Answer:
Explanation:
Three things that anyone can do to prevent this would be
understand myths about working out
look for inexpensive classes in the area
take a physical education course at school
Most barriers to exercise revolve around becoming discouraged/depressed about the results due to having unrealistic and high expectations. Learning about what you can expect realistically from a set routine will greatly increase motivation and prevent such barriers. The same applies to learning which routines and diets work best and all of this can be learned by taking physical education courses or classes near you.
Answer:
understand myths about working out
look for inexpensive classes in the area
take a physical education course at school
Explanation:
Just took health class. :))
What is the name for the 3 letter code on tRNA?
Answer:
anticodon
anticodon – a sequence of three nucleotides on a tRNA molecule that bond to a complementary sequence on an mRNA molecule. The anticodon sequence determines the amino acid that the tRNA carries.
Explanation:
What is the pathway of air into the body?
Which plays both a role in physical and chemical digestion?
teeth
saliva
gall bladder
villi
Answer:
I'm not sure on this, but I would say saliva. Take this answer with a grain of salt though
Answer:
Saliva
Explanation:
I just got 100% on Edg.
What is the trophic level of the Aoudad (primary, secondary, tertiary consumer, scavenger, decomposer) .
PLEASE ANSWER ASAP!!!!
Answer:
Primary.
Explanation:
The Aoudad (Barbary sheep) Eat producers, (autotrophs) making them primary consumers
Which of the following is a possible consequence associated with prolonged exposure to lead?
A) increased occurrence of delinquent behavior
B) increased occurrence of ADHD
C) increased occurrence of depression
D increased occurrence of obesity
Answer:
The answer is A. increased occurrence of delinquent behavior
Explanation:
edge 2021
A possible consequence associated with prolonged exposure to lead is the increased occurrence of delinquent behavior.
What are the effects of prolonged exposure to lead?Prolonged exposure to lead causes various severe diseases like reduced fertility, high blood pressure, heart diseases, kidney diseases, etc.
Lead is considered heavy metal which affects the health and psychology of humans to a large extent.
It increases the occurrence of delinquent behavior which means an act of criminal cases mostly carried out by adult people.
These delinquent behaviors are rapidly increasing due to the intake of drugs that contains a high amount of lead in it.
Therefore, a possible consequence associated with prolonged exposure to lead is the increased occurrence of delinquent behavior.
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difference between plants and animal cell
Answer:
Plant cells have a cell wall, but animals cells do not. Cell walls provide support and give shape to plants. Plant cells have chloroplasts, but animal cells do not.
Explanation:
Hope this helps
sorry if incorrect
Brainliest?
Answer:
Plant cells have chloroplasts,animal cells don't.
Plant cells also have cell walls.
Animal cells have lysosomes and centrosomes and plant cells don't.