Why do cells need to undergo meiosis

Answers

Answer 1

Answer:

Meiosis is a type of cell division that reduces the number of chromosomes in the parent cell by half and produces four gamete cells. This process is required to produce egg and sperm cells for sexual reproduction. ... Meiosis begins following one round of DNA replication in cells in the male or female sex organs.


Related Questions

A limiting factor is a resource or other factor in the environment that can lower the population growth rate.

A. True
B. False

Answers

The answer is true.

Chapter 1 Question: Why didn't the plants and animals in the biodome have
enough energy storage molecules?

Answers

Because there was not enough carbon in abiotic matter.

In order for natural selection to occur, there must be variation within the population. Which statements
are an accurate reflection of the relationship between natural selection and variation in the population? Select ALL that apply.
A)
Mutations are caused by natural selection.
B)
Mutations are a source of variation within any population.
C
Genetic variation is increased in populations with sexual reproduction.
D)
Genetic diversity is decreased overall by the mechanism of natural
selection,
E)
Natural selection lowers the population size but maintains the genetic
variation in a population.

Answers

Answer:

E, B, D (im not sure about D, but definitely E and B)

I think its E, B and D, not sure tho.

4. Write the complementary DNA strand for the given strand of DNA.
a. CATAAGCACTTAGGC -
b. CCAGAGTAGCCAGGT-
help plss​ huhuhu i need answer

Answers

Answer: A. GTATTCGTGAATCCG

B: GGTCTCATCGGTCCA

Explanation:

G goes with C and A goes with T

Remember with a song:

Apples go in trees, Cars in the garage

correct answer gets brainiest. and i’m telling u. if u guess or leave a link, ur getting reported and that’s not a threat

Answers

Answer:

Blood circulation

Explanation:

I'm pretty sure. Thank you.

How are the DNA strands organized

Answers

Answer:

They are all composed of building blocks called nucleotides that are linked together in a row. its two complementary strands are chemically linked together and are spiraling around counterclockwise, forming a ladder-like double-stranded molecule.

Explanation:

Drag each graph to the correct location on the image.

Match the graphs of the skier's potential energy and kinetic energy with the skier's position on the hill.


Answers

Answer:

What you have in the picture is correct. :>

Explanation:

I took the test and the correct answer is what you have. :>

Answer:

you got it right!!

Explanation:

i just took the test.

Which molecule is produced in the aerobic breakdown of a glucose molecule?

A. Water
B. Oxygen
C. Light
D. Alcohol
E. NADPH

Answers

[tex]\huge{\textbf{\textsf{{\color{pink}{An}}{\red{sw}}{\orange{er}} {\color{yellow}{:}}}}}[/tex]

E. NADPH

thankshope it helpspls mark as brainliest

Answer:

E

Explanation:

it enters the citric acid cycle and generates reducing equivalents in the form of NADPH

what happens to the light coming out of a convex lens

Answers

Rays of light that pass through the lens are brought closer together that’s because this lens is a converging lens.

The first land battle of the Civil War was fought at a Gettysburg b Bull Run c Antietam d Shiloh

Answers

Bull run was the first land battle of the civil war.

Answer: Gettysburg

Explanation:

When colorblind women married a male with normal vision, all their daughters have normal vision and all their sons are colorblind. This is an example of which type of inheritance.

Answers

Answer:

X-linked recessive

Explanation:

The trait is a sex-linked trait because the daughters are not colorblind, but the sons are. We know this its recessive because the daughters have inherited the mother's X chromosome that has the colourblindness trait, but are not colorblind because the father's X does not have the colourblindness trait. The sons are colourblind because they inherited the X from their mother with the colourblindnese trait and a Y from their father. The colourblindness trait or normal vision trait is not carried on the Y, so the mother's X chromosome's trait is expressed.

Sorry if it's confusing i tried my best to explain it

Which following statement is an inference?




Boy has tears coming
from his eyes.


The boy's knee is bleeding.


The boy is in pain.

Answers

The boy is in pain is an statement that is an inference.

help................

Answers

The top left, would be light energy from the sun, while the top of the circle would be living beings. Think about it just like plants that that gain energy from the sun through photosynthesis. Then the bottom of the circle would be nonliving beings, either decomposed plants or animals that bring nutrients to soil, or dead ones that we eat. This cycles through until the energy is rereleased through heat. Therefore the top right would be heat energy, every living thing on earth creates gradual amounts of heat. Imagine going for a run, you'll probably be hotter afterwards right? I know it's not the most scientific answer but its 100% right.

Hope this helps!

Why is everyone pretending Mrs. Dodds didn't exist?

Answers

Answer:

It was a prank

Explanation:

everyone decided to prank percy and act like mrs dodds didnt exist

Which of the following is NOT an example of a negative feedback loop?


A. As a rabbit population grows larger, there is less food per rabbit, and the population size reduces.


B. As you get too hot, you sweat to cool your body temperature back down.


C. As the population of coyote increases, the population of their prey decreases, resulting in a decrease in coyote population.


D. As the population of prairie dogs increases, the ability to spot and warn of predators increases, increasing the growth rate.

Answers

Answer:

B. As you get too hot, you sweat to cool your body temperature back down.

PLEASE HELPPP ASAP!!!

1. List all of the omnivores in this food web
2. List all the herbivores and this food web
3. List all the producers in this food web

Answers

Answer:

omnivores: Birds, Toad, Skunk, Red fox, Wolf, Bear

herbivores: Bees, Deer, Mice, Rabbit, Insects

producers: blossoms, nuts, bark, leaves, blossoms

Please help with this I’m being timed

Answers

Answer:

cell inhibitors

Explanation:

edge

The probability that an “X” bearing egg will be fertilized by a “Y” bearing sperm is?

Answers

Answer:

100%

Explanation:

There are millions of organisms on Earth that scientists have classified into different levels of organization. Which of these characteristics would be most important to scientists when classifying organisms?
a)where the organism lives
b)how small the organism is
c)the genes of the organism
d)the shape of the organism

Answers

Answer:

I think no. b is the ans or maybe not

There are millions of organisms on Earth that scientists have classified into different levels of organization. The characteristics which would be most important to scientists when classifying the organisms will be the genes of the organism. Thus, the correct option is B.

What are the different levels of organization?

Taxonomy is the study of classification of organisms. Scientists have used many different types of information to place the different organisms into specific groups. The groups are arranged in different levels. These levels were named as kingdom, phylum, class, order, family, genus, and species.

The organisms which were present on the Earth were classified on the basis of the environment where they live, how small is the size of the organism, and the shape of the organism found such as rod-shape, cocci, spirillum, etc.

Therefore, the correct option is B.

Learn more about Organization here:

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Please Helpppp!!!!!????

Answers

Answer:

First a glucose molecule enters the body cell, and then a glucose molecule is broken down in the cytoplasm. Then, oxygen is used to break down smaller molecules, smaller molecules enter the mitochondrion. Finally, a large amount of energy is released.

Explanation:

After you ate an energy bar full of glucose, the molecules will first enter the cells, prepare to be broken down in the first site, cytoplasm. And now, oxygen takes a part in it, continue to break it down. The smaller molecules now enter the energy source of a cell, which is mitochondrion, the energy will be released here.

Hope this will help❤️

What type of bond holds nitrogen bases together? And, how many of these hold Guanine and Cytocine together?

Answers

hydrogen bonds help hold the 2 chains of the DNA double helix together

How can the appearance of white baby rabbits be explained when the mother has white fur, and the father has black fur?

Answers

Answer:

white fur is dominant and the mother is WW

Explanation:

W=white fur

w=Black fur

Research and Report: Draw a diagram showing how
new mutations can be added to a gene pool.

Answers

Answer:

                   

Explanation:

Answer: I mean the instructions are pretty clear and you still ask for help?

What do decomposers leave behind after getting their energy?
А
chlorophyll and vitamins
B
carbon dioxide and water molecules
C С
elements like carbon, nitrogen and phosphorus
D
energy-rich carbohydrates
Q

Answers

Answer:

Carbon and nitrogen

Explanation:

Decomposers gain energy and nutrients and energy by breaking down dead organisms and animal waste. Through that process they release nutrients. Which are carbon and nitrogen. To give nutrients to the ecosystem.

Answer:

carbon and dioxide,nitrogen and phosphorus

Explanation:

it's right 100% did the ap3x quiz

What valuable information was gained from Mendel's dihybrid crosses?

Select all that apply.

1. Not all traits are controlled by genes. In most plants, genes only determine traits that affect
flower color.

2. Statistical and probability methods can be used to determine how likely an offspring is to inherit
certain traits.

3. Genes are inherited differently in plants than they are in animals.

4. Inheritance of one trait does not affect inheritance of another.

Answers

2 and 3 i’m pretty sure according to my calculations it’s 6c6

Mendel's dihybrid cross proves that the inheritance of one trait does not affect the inheritance of another trait. Hence, option 4 is correct.

What is a dihybrid cross?

When two different traits are crossed together then it is called a dihybrid cross. These two different traits are regulated by two different genes.

In Mendel's dihybrid cross, he did cross between round yellow and wrinkled grees. There are two traits, color, and shape. In the F1 generation, all seeds were round yellow but they were heterozygous. Round shape and yellow color are dominant traits.

Then he self-pollinated F2 generation and found four types of seeds that were round yellow, round green, wrinkled yellow, and wrinkled green in the 9:3:3:1 ratio. The cross is attached in the image below.

Inheritance of one trait does not affect the inheritance of another trait. Hence, option 4 is correct.

Learn more about dihybrid cross, here:

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In 1989, a tanker carrying oil struck a reef and spilled 11 million gallons of oil in an
Alaskan bay. The oil not only spilled into the harbor, but also washed up on the
shoreline. The spill killed millions of fish, birds that lived on the shore, sea otters,
porpoises, seal lions and many whales. Every form of life in the area was affected.
Scientists have carefully studied the area and its species since the initial spill to
determine both short-term and long-term effects.
Which of the following was affected the least by this catastrophic event? A: Plants along the shoreline B: Fishermen in the area C: Migratory sea birds D: Crustaceans that lived on the bottom of the bay

Answers

Answer:

The answer is C: Migratory sea birds.

Explanation:

Sea birds that are migrating would not only just fly above the spill and nestle on the trees, but they could eat crabs and other animals that scurry around on the shore as a food source due to the death of their primary source of food, fish.

In what way does walking help The environment? How does it make you feel about the state of our environment?

Answers

Answer: Walking plays an important role in improving our quality of life because it helps protect and improve the living environment and natural resources. ... Communities designed to be walkable have the potential to reduce air pollution and greenhouse gases because people may choose to walk or bike rather than drive. Walking plays an important role in improving our quality of life because it helps protect and improve the living environment and natural resources. Improving the environment in turn brings added health benefits that come, for example, from cleaner air, less traffic noise and fewer road accidents.

Explanation:

4 In your own words, describe the relationship between
the processes and forces that create the different types of rocks

Answers

Answer:The three main rock types are igneous, metamorphic and sedimentary. The three processes that change one rock to another are crystallization, metamorphism, and erosion and sedimentation.

A population of lowers is separated by an eight-lane superhighwax, Pollen is often camed by the
and across the highway and can pollinate the flowers on the other side of the highway Can speciation

occur in this situanon2
No because the populations are not reproductively isolated
Ne because the populanons are not geographically isolated
Ces because the populations are reproductively isolated
Yes because the populations are geographically isolated
DONE
Fr

Answers

Answer:

hi

Explanation:

Answer: A) No, because the populations are not reproductively isolated.

Explanation:   :)

the geological time scale represents the history of what?

Answers

It represents the history of time which ends up being divided on the basis of the earth's biotic composition
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