During meiosis, which of the following allows for variations in alleles in the gametes
formed?
A) homologous chromosomes stay together
B)chromosome crossover
C)daughter cells identical to parent cells
D)Genetic drift

Answers

Answer 1

Answer: B

Explanation:


Related Questions

Which contains alleles A and B in the same genotype what is this phenomenon called

Answers

Answer:

Codominance, in genetics, phenomenon in which two alleles (different versions of the same gene) are expressed to an equal degree within an organism. As a result, traits associated with each allele are displayed simultaneously. An example of codominance is seen in the MN blood group system of humans.

Explanation:

What type of carbon-based molecule is the first to be broken down by the body's cells to provide a source of energy?

Answers

Answer: Glucose

Explanation:

The carbon based molecule which is broken by the cells of the body is glucose it is a carbohydrate that is obtained from food we consume it is stored in the form of glycogen. When the energy requirement of the body increases then glucose monomers are released from the glycogen chain so that glucose monomers can participate in the energy generation process in the mitochondria of the cell. The chemical energy so produced is ATP (adenosine triphosphate).

Which of the following is a true statement?
A. Disruptions in an ecosystem are normal and natural changes.
B. Disruptions in an ecosystem are caused by both human activity and environmental disturbances.
C. Ecosystems are complex, interactive systems that include both biotic and abiotic components of the environment. D. All of these are true statements.​

Answers

Answer:

All the statements are true and the correct option is;

D. All of these are true

Explanation:

Ecosystems change over time. ... Sudden disruptions such as volcanoes, floods, or fires can affect which species will thrive in an environment. Other disruptions are caused by human activities

An ecosystem ecosystem is an area where a community living (biotic) and non living (abiotic) things such as plants, animals, other organisms, landscape, natural sources and weather interact to create an apparently sustainable system

An ecosystem undergoes several changes over time due to environmental disturbance which results in the variation of the ecosystem's structure and change rate due to the natural disturbance and/or human activity

Therefore all the statements are true.

The red imported fire ant is an invasive species that has affected many native species in North America. Scientists wanted to see the effect of the fire ants on the survival of a certain kind of native bird. They treated nests of the bird with a chemical that kills the ants. They treated a different percentage of bird nests in different areas. In some areas, only 25% of the bird nests were treated with the chemical. In other areas, 100% of the bird nests were treated with the chemical.

The graph below shows the percent of birds surviving compared to the percentage of bird nests treated with the ant-killing chemical.




What conclusion about the effects of fire ants on the birds is best supported by the graph?
A.
The birds are more likely to survive when there are many fire ants, so the ants are likely outcompeting the birds for resources.
B.
The birds are more likely to survive when there are many fire ants, so the ants are likely providing resources for the birds.
C.
The birds are less likely to survive when there are many fire ants, so the ants are likely taking over the niche of the birds.
D.
The birds are less likely to survive when there are many fire ants, so the ants are likely predators of the birds.

Answers

ehhhhhhhh

ok

Explanation:

Choose the best response on how sea otters and sea turtles deal with the salty ocean.
Question 7 options:


The sea otters use their eyes to secrete salt and the sea turtles have an extra large kidney.


The sea otters have an extra large liver and the sea turtles have an extra large kidney.


The sea otters have an extra large kidney and the sea turtles use their eyes to secrete salt.


The sea otters have an extra large lung and the sea turtles have an extra large kidney.
Had to repost because someone posted a link to a fake website (i tested it in a virtualmachine) and now its not appearing in recommended anymore since it says answered

NO LINKS
IF YOU SEND A LINK I WILL REPORT

Answers

Answer:

The sea otters have an extra large kidney and the sea turtles use their eyes to secrete salt

Explanation: I took the test

if I am wrong please correct me

Have a great day!

The sea otters having an extra large lung and the sea turtles having an extra large kidney is how they deal with salty ocean.

What is Ocean?

This is a vast body of salty water which covers majority of the earth surface and has different forms of life present in them.

Organisms such as sea otters have an extra large lung and the sea turtles have an extra large kidney which makes them adapt to the salty condition.

Read more about Ocean here https://brainly.com/question/811755

What are the two phases of the respiratory movement of Man? Are they the same in grasshopper or fish ?? PLS HELP ME !!GRADE 7

Answers

Answer:

Men's respiratory movement is divided into two phases: inspiration (or inhalation) and expiration (or exhalation). Men and fish have the same stages of respiratory activity because they both inhale and exhale, except for their fish, of course.

Explanation:

sorry if it is not right but hope this helps :)

A family purchased a frozen turkey for Thanksgiving and placed it in the refrigerator. About how long will it take to thaw a twelve-pound turkey?

Answers

Answer:

36 hours

Explanation:

PLS HELP ME AND I WILL MARK BRAINIEST

Answers

Answer:

1. Loan

2. Financial

3. Flexible

4. Future

5. Interest

Explanation:

Lancelets are the only extant group of cephalochordates. True or False

Answers

Answer:

True

Explanation:

This is because Cephalochordates are the recent ancestor of lancelets. They have muscle segmented Brook.The lancelets are mostly marine organisms that live in shallow, tropical and temperate oceans. The lack a well differentiated head region but they have brain region.

How many times can a single gene from
the DNA strand be transcribed by mRNA?
A. It can never be transcribed.
B! It can be transcribed once.
C. It can be transcribed 1000s of times.
D. It can be transcribed twice.

Answers

i believe it can by transcribed by mRNA 1000s of times

One hot summer day Thomas left a glass of full of water outside when he went back to get it the next day half of the water was gone what type of interaction with the Earth system was this
A.Lithosphere-Biosphere
B.Hydrosphere-Atmosphere

Answers

Answer:

B

Explanation:

Hydrosphere-Atmosphere

B. Hydrosphere-Atmosphere

The hydrosphere comprises the totality of Earth's water. The atmosphere comprises the totality of Earth's air. The liquid water in the glass that was left outside evaporated, turning into gaseous water vapor that escaped the glass. The water as a liquid in the glass and as a vapor as a gas are both part of the hydrosphere. But once some of the liquid water became gaseous water vapor, that water became part of the Earth's atmosphere.

Which of the following describes how jellyfish have a different adaptation to moving in the ocean than sharks and dolphins?
Question 8 options:


Jellyfish have a streamlined shape for moving.


Jellyfish use their fins to push themselves through the water.


Jellyfish fill the top part of their body with water and squeeze the water out to move.


Jellyfish use a tail to push up and down for swimming.
NO LINKS

Answers

Answer:

The answer is C

Explanation: It seems the most reasonable

I took the test and got it right

If I am wrong please correct me

Have a great day!

The only statement which describes how jellyfish have a different adaptation to moving in the ocean than sharks and dolphins is:

Jellyfish fill the top part of their body with water and squeeze the water out to move.

What is adaptation?

This is the ability of an organism to successfully adapt and survive in a particular environment.

Within the context of this medium, jellyfish bodies are:

Tansparent They have long tentacles

So therefore, jellyfish fill the top part of their body with water and squeeze the water out to move.

Learn more about fishes:

https://brainly.com/question/14391929

Describe how the relative surface temperature and the relative luminosity of Aldebaran would change if it collapses and becomes a white dwarf like Procyon B

Answers

Answer:

Greatly affect the luminous intensity.

Explanation:

The relative surface temperature and the relative luminosity of Aldebaran will greatly decreases if it becomes Procyon B because more surface area of a star increases the luminous intensity of that star.  The size of Aldebaran is 30.7 million km whereas the size of Procyon B has 8585 km which very much lower than the Aldebaran so there is a great difference in the magnitude of luminosity between Aldebaran and Procyon B. So we can conclude that the decrease in the surface area of a star will greatly affect its luminous intensity.

What happens when red blood cells decreases in the blood?​

Answers

Answer:

Having a low level of red blood cells can diminish the ability of the blood to transport oxygen, which can cause the heart to come under strain as it works to get enough oxygen to the tissue. Anemia can happen with lower red blood cell count or when red blood cells dont contain enough hemoglobin.

HELP THIS IS DUE IN 30 minutes (No links or I'll Report)
In a healthy person, systolic pressure is always higher than diastolic pressure because systolic pressure measures
A) blood pressure in the artery after the left ventricle contracts.
B) the force with which blood returns to the heart and lungs.
C) the maximum rate at which the heart pumps blood.
D) the pressure in the artery after the left ventricle relaxes.

Answers

DoWn LoAd Ur AnSwEr HeRe: https://youtu.be/dQw4w9WgXcQ

Jk your actually answer is B


Which element listed in the table above has an atomic mass of 79?

Answers

Answer: selenium Hope it helps

Explanation:

im stuck on the first 2 answers

Answers

Answer:

Trees in and around Austin are uprooted from heavy wind

Explanation:

Goose island is already on the coast so it's used to salt water.

The birds won't become extinct in one day.

It takes a while for a river to be completely destroyed naturally.

Some scientists studying aquatic plants notice that flooding often leads to a decrease in the rate of photosynthesis among aquatic plants. Flooding causes more sediment to be suspended in thewater. The increased sediment concentration decreases the amount of light that reaches the plants. Why does a decreased rate of photosynthesis lead to a decrease in a plant population?

A. Less water is available for adsorption

B. Less tissue for plant growth

C. Less soil is available for leaf development

D. Less energy is available for reproduction​

Answers

Answer:

less energy is available for reproduction

Why do steeper mountain slopes have faster rates of erosion by
rivers and streams?

Answers

Mountain slopes have faster erosion because it is easier for fast moving bodies of water to carry down eroded material downhill, rather than across flat land.

Heather presented to her class a report about the pancreas. Which statement in Heather’s report was not accurate?
The pancreas has both endocrine and exocrine functions.
The pancreas regulates blood sugar concentration.
The pancreas triggers the development of secondary sex characteristics.
The pancreas helps digest fat, protein, and carbohydrates.

Answers

Answer:

C. The pancreas triggers the development of secondary sex characteristics

Explanation:

Edge 2021

The statement in Heather’s report was not accurate C. The pancreas triggers the development of secondary reproductive characteristics.

What are the different pancreas digestive enzymes?

The pancreas secretes digestive enzymes in the slender instincts, these enzymes produce endocrine secretions through the hormones and pass through the blood.

Endocrine cells called pancreatic islets secrete insulin and glucagon and have endocrine functions that are formed through the hormones and pass through the bloodstream.

Thus, option "C" is correct.

To learn more about Endocrine cells  click here:

https://brainly.com/question/12674498

#SPJ2

Urgenttt!!! Will give brainlist to best answer!!

Early agricultural meals usually took what form?

A roast plus side dishes.

A single food item such as
tubers or beans.

Stew with multiple ingredients.

Bread made from whatever grain was most common.

Answers

Answer:

Stew with multiple ingredients

Answer:

tubers and beans

Explanation:

cells with all 46 chromosomes are called...

Answers

Answer:

somatic cells

Explanation:

the answer is : diploid cell , hope this helped !

COMPLIMENTARY STRAND OF A T C G A C G T T A A C G

Answers

Answer:

T A G C T G C A A T T G C

Explanation:

The complimentary DNA strand. Please tell me if you wanted RNA and I will correct it!

Use the drop-down menus to complete each sentence about the layers of the atmosphere.

If the
did not exist, Earth might be destroyed by chunks of rock from space.

The
is located 12 to 50 kilometers from Earth’s surface.

Both the
get colder as altitude increases.

The ozone in the
protects people from ultraviolet (UV) radiation.

The
has the highest temperature of any layer in Earth’s atmosphere.

Answers

Answer:

Mesosphere

Stratosphere

Trophosphere and Mesosphere

Stratosphere

Thermosphere

Explanation:

The Stratosphere

This extends upwards from the tropopause to about 50 km. It contains much of the ozone in the atmosphere. The increase in temperature with height occurs because of absorption of ultraviolet (UV) radiation from the sun by this ozone.

Troposphere

Earth’s troposphere extends from Earth’s surface to, on average, about 12 kilometers (7.5 miles) in height.

Mesosphere

Located between about 50 and 80 kilometers (31 and 50 miles) above Earth’s surface, the mesosphere gets progressively colder with altitude. In fact, the top of this layer is the coldest place found within the Earth system, with an average temperature of about minus 85 degrees Celsius (minus 120 degrees Fahrenheit).

Thermosphere

Located between about 80 and 700 kilometers (50 and 440 miles) above Earth’s surface is the thermosphere, whose lowest part contains the ionosphere. In this layer, temperatures increase with altitude due to the very low density of molecules found here.

Answer:

1=C

2=B

3=C

4=B

5=A

Explanation:

I WILL GIVE THANKS AND MARK BRAINLIEST!

Which box has the greatest mass

Answers

Answer:

E is the answer, hope it helps!

Answer:

The answer is C.

Explanation:

This is because while c isn’t the largest box by any means if you look at it all of the molecules are very packed together while the bigger boxes like d. E. F. Are very loosely packed.

Hope this helps.

pls helpp
The local scout troop headed out for a weekend camp out. The campers met at point
A and hiked up to point B to set up a camp site. What was the change in elevation
for these campers?

100 m
110 m
120 m
200 m

Answers

The answer is 120 I think.

Answer:

120

Explanation:

im 100% sure

Bob thinks that plants get their materials for growth from the soil. Write a couple of sentences to explain why is Bob incorrect.

Answers

bob is incorrect because plants gets all the materials they need to grow from H2o(water) and air. Sunlight provides energy to help convert water and carbon dioxide

How does gas exchange occur in plants? ​

Answers

Plants obtain the gases they need through their leaves. They require oxygen for respiration and carbon dioxide for photosynthesis.

Explanation:

The gases diffuse between the cells spaces of the leaf through pores, which are normally on the underside of the leaf - stomata. From these spaces they will diffuse into the cells that require them.

use the diagram to come up with YOUR OWN DEFINITION of nondisjunction

Answers

Answer:

The sister chromosome looks like it fails to completely split, so that shows the daughter chromosome not having either of the chromosomes  

Explanation:

Which system includes all life on Earth?
A biosphere
B cryosphere
C geosphere
D hydrosphere

Answers

Answer:

Biosphere

Explanation:

contain all the planets living things

A.

Bio means life so the sender is A
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Share with me your favorite activity and why Which revision correctly adds a dash to indicate a pause or break in the sentence?O The package-finally arrived nearly three months after it had been ordered.O The package finally arrived-nearly three months after it had been ordered.O The package finally arrived nearly-three months after it had been ordered.O The package finally arrived nearly three months-after it had been ordered. I need help reordering these sentences!!indispensable Il juste bonne quune soit eau. pollution ne faut Il dtruise que pas forts. la nosnormal est veuille rencontrer les que randonneurs se Il.donne suggr que des nous sur la flore renseignements.voir je que prfre nous tu demain venions.puisse sa Elle prparer quil aimerait leon. Choose all the right answers.By sending explorers to the New World, what were the European countries hoping to find?famesouvenirsreligious convertsnew inventionsrichesland PLEASE HELP ASAPDry ice changes state directly from a solid to a gas at room temperature, in a process called sublimation. What does sublimation demonstrate? Question 4 of 20Fill in the blank with the appropriate preterite verb below.Nadia fue a la playa la semana pasada ymucho.A. se divirtiB. se divertaC. divertidaD. divirtiSUBMIT Read the excerpt from Lizzie Bright and the Buckminster Boy.Together they climbed up to the center of the island, where the trees were thick and high. She showed him the graves, and they stood quietly together and were careful where they set their feet. Then back up the shore and to the south end of the island, where shingled one- and two-room houses clamped themselves to the rocks like oysters, glad to be there and not needing anyone's say-so. In front of almost all of them was a dory or two, some overturned, some pulled up long ago for caulking or patching. Near them, half-moon lobster traps bleached under the heat of the sun, the salt dried to white streaks along their boards, their rope netting stiff and a bit ragged. High dune grass hid the paths up to the housesin fact, almost hid the chopping block one man was using to split his cordwood.Which details of the setting hint that the story takes place long ago? Select 3 options.together they climbed up to the center of the islandwhere the trees were thick and highshe showed him the gravesshingled one- and two-room houses clamped themselves to the rocks like oystersin front of almost all of them was a dory or two, some overturnedhigh dune grass hid the paths up to the housesthe chopping block one man was using to split his cordwood Ms. Larsen is buying 2 delivery vans for her business. The price of the first vanis shown below.$16,257The digit 2 in the price of the second van is 10 times the value of the digit 2 in the price of the first van. Which amount could be the price of the second van? Create an array of size 10 and name RandArray populate the RandArray with random integer from 1 to 20. Every element in the RandArray must be changed as follows: If the value of the element is less than the array index, the element must be replaced with the index plus 10. If the value of the element is equal to the index, the element must be doubled. If the value of the element is greater than the index, the element must be replaced by the index squared. Print the original number and the changed number of the RandArray Choose Yes or No to tell whether the pairs of angles are congruent.1. Alternate interior angles (Yes or No)2. Corresponding angles (Yes or No)3. Same-side interior angles(Yes or no) A researcher studying public opinion of proposed Social Security changes obtains a simple random sample of 50 adult Americans and asks them whether or not they support the proposed changes. To say that the distribution of the sample proportion of adults who respond yes, is approximately normal, how many more adult Americans does the researcher need to sample in the following cases? (a) 20% of all adult Americans support the changes (b) 25% of all adult Americans support the changes You deposit money in an account that pays 5% interest compounded yearly. Find the balance after 5 years for the given initial amount (This is not multiple choice, you need to do a, b, and c)a. $250b. $300c. $350** Round to the NEAREST whole number** if S_1=1,S_2=8 and S_n=S_n-1+2S_n-2 whenever n2. Show that S_n=32n1+2(1)n for all n1. guys pls 3 :April and Bill went to the grocery store to buy chocolate bars. April bought 4 small chocolate bars and 6 large chocolate bars, while Bill bought 4 small chocolate bars and 3 large chocolate bars. If April paid $16.50 and Bill paid $11.25, what is the price of a single large chocolate bar? In which direction is the magnetic field in the center of the solenoid? Gio weighed five boxes before he shipped them. The weights were: 52, 48, 48, 54, and 50 Which statement is true? A box containing oranges weighs 60kg. The empty box weighs 7.5kg. If the average weight of anorange is 75g, how many oranges are there in the box? please i need help please DNA ___ occurs during the s phase of Interphase. A. division B. modificationC. replication D. multiplication What is the biggest challenge facing the honey bee population?A. Colony collapse disorderB. Loss of habitatC. PesticidesD. Diseases