Crossing-over and nondisjunction take place during the process of
1.mitosis
2.meiosis
3.internal fertilization
4.binary fission

Someone help please and thank you

Answers

Answer 1

Answer:

2.meiosis............


Related Questions

True or false if false type the right answer. History
Sorry I choosed biology by mistake

Answers

Answer:

the first is mostly false but somewhat tru the second is true and the third is true

Explanation:

NEEED HELPPPP YOULL GET BRAINLIEST PROMISE

Answers

Answer:

first quarter neap

second quarter spring

third quarter neap

fourth quarter spring

Scientists are monitoring the pH of oceans. Which of these are they most likely studying?

A. the population of polar bears
B. the health of coral colonies
C. the level of carbon dioxide in the air
D. the rise of sea level

Answers

Answer:

B. the health of coral colonies

Explanation:

Answer:

ANSWER is B , The health of coral colonies

cell division gizmo answer key

Answers

look it up I might have what your looking for

Hold on lemme get the link

Humans decide which varations are favorable or desired.

A. Artificial Aelection
B. natural selection
C. both

Answers

Answer:

Artificial selection

Explanation:

Artificial selection is the identification by humans of desirable traits in plants and animals, and the steps taken to enhance and perpetuate those traits in future generations.

1.2 Identify TWO types of stressors that learners are likely to experience in a post-school
destination such as a college or university, or the workplace.

Answers

Answer:

The two types of stressors are;

1. Physical stress

2. Psychological stress

Explanation:

Stress is a state of subjecting a person or thing to different forms of pressure. Stressors are factors that can lead to stress. When a person gets into an institution of higher learning or begins working with an establishment, he can face different kinds of stress. Two of them include;

1. Physical stress: This stress could be caused by excessive exertion in activities. In the school environment, attending lectures, completing assignments, and engaging in social activities could result in burn out.

2. Psychological stress: This stress can be caused by emotional and cognitive factors. Rigorous deadlines and expectations from bosses can lead to emotional drain.

Human beings are: more genetically similar than any other species. genetically diverse compared to other species. members of various species, depending on nationality.​

Answers

Answer:

more genetically similar than any other species.

Explanation:

What percentage of our usable freshwater is already polluted?

Answers

Answer:

3% of the earth's water is fresh. 2.5% of the earth's fresh water is unavailable: locked up in glaciers, polar ice caps, atmosphere, and soil; highly polluted; or lies too far under the earth's surface to be extracted at an affordable cost. 0.5% of the earth's water is available fresh water

Explanation:

please give brainliest

Answer:

Water covers about 71% of the earth's surface.

326 million cubic miles of water on the planet

97% of the earth's water is found in the oceans (too salty for drinking, growing crops, and most industrial uses except cooling).

320 million cubic miles of water in the oceans

3% of the earth's water is fresh.

2.5% of the earth's fresh water is unavailable: locked up in glaciers, polar ice caps, atmosphere, and soil; highly polluted; or lies too far under the earth's surface to be extracted at an affordable cost.

0.5% of the earth's water is available fresh water.

If the world's water supply were only 100 liters (26 gallons), our usable water supply of fresh water would be only about 0.003 liter (one-half teaspoon).

In actuality, that amounts to an average of 8.4 million liters (2.2 million gallons) for each person on earth.

This supply is continually collected, purified, and distributed in the natural hydrologic (water) cycle.

Where Water is Found and the PercentageOceans97.2%Ice Caps/Glaciers2.0%Groundwater*0.62%Freshwater Lakes0.009%Inland seas/salt lakes0.008%Atmosphere0.001%Rivers0.0001%TOTAL99.8381%

Please help with punnet squares problem! I'm not understanding what the answer is thanks

Answers


Ok so these are the Punnett squares I would take the two percentages and multiply to get 37.5% but I’m not positive that’s the answer

16. Explain how the following affect the rate of enzyme activity. a.Substrate Concentration:
b. pH:
c. Temperature:

Answers

Answer:

pH: If it's to much on either the alkaine or the acid side the enzymes will vary

Explanation:

B)ph is the final answer

What is the current genetic diversity of koalas?

Answers

Answer:

low in modern conditions.

Explanation:

Having Freckles (F) is dominant over not having Freckles (f). If a person that is FF has children with a person that is FF, what is the probability of their children will have Freckle

a
0%
b
25%
c
50%
d
100%

Answers

Answer:

D

Explanation:

Because there isn't a non-dominent gene.

Which of the following cannot reliably prevent the impact of hurricanes on hurricane-prone places?

A)

restoring freshwater marshes

B)

allowing the growth of a natural buffer of trees

C)

completely preventing settlements in areas that seem prone to catastrophes

D)

encouraging people to avoid settling in areas known to be hazardous

E)

using satellite images to predict hurricanes

Answers

Answer:

I think the answer is d I hope this help

Answer:

A) restoring freshwater marshes

Explanation:

got it right on edg

Hanan ate a meal that consisted of rice, dal, fish and fried potatoes. Explain the process of digestion of the food with reference to the parts and enzymes involved in the digestive system.

Answers

Answer: A digestive system can be defined as a system which is made up of the alimentary canal and the associated glands and organs which produce some of the enzyme- rich secretions that bring about digestion. The process of digestion of food Hanan are, is discussed below.

Explanation:

The food taken by Hanan consist of carbohydrates (rice, potatoes ), protein( fish, dal) , fats and oil( fish, fried potatoes). The digestion of the food taken passess through a long tube ( alimentary canal) which stretches from the mouth through oesophagus to stomach, intestines and down to the anus.

In the MOUTH, the following occurs:

--> The food is cut and grinded into smaller pieces by the help of the teeth.

--> the enzyme ptyalin acts on the carbohydrate part of the food converting it to complex sugar.

--> the food is mixed with saliva, with the help of the tongue, is rolled into a bolus which is then swallowed.

At the STOMACH, food enters through the peristaltic movements of the oesophagus, The following occurs:

--> The muscular walls of the stomach contract and relax forcefully, thus churning the food.

--> Gastric juice( consists of pepsin, renin and dilute hydrochloric acid). Dilute hydrochloric acid activates pepsinogen to pepsin which digests proteins to polypeptides.

--> Food remains in the stomach for three to four hours. By this time, it is a thick, creamy fluid called chyme which them moves to the duodenum (small intestine).

At the SMALL INTESTINE, digestion occurs at the first part called the duodenum, and later part called the ILEUM.

--> Several substances are secreted into the duodenum from the pancreas( pancreatic juice) and liver( bile), the accessory organs of digestion.

--> pancreatic juice contains three important enzymes whose activities include:

• Amylopsin: Breaks down complex sugar to maltose

• Trypsin: breaks down protein into peptides

• Lipase: Breaks down fat into carboxylic acids and glycerol (end product of digestion of fat).

--> Bile from the liver, adds water to the chyme, emulsifies fat and neutralise the action of dilute hydrochloric.

At the ILEUM, intestinal juice is produced by special cells of the small intestine. Their actions include:

• maltase: this acts on maltose converting it to glucose( which is the end product of carbohydrate digestion).

• erepsin: This acts on peptides converting it to amino acids( which is the end product of protein digestion).

Absorption takes place at the small intestine.

What is the fate of the sunlight during photosynthesis?
A. It is released as a product
B. It lowers the activation energy
C. It is converted to chemical energy
D. It is an unnecessary reactant

Answers

Answer:

C. It is converted to chemical energy is your answer

c ) itz ans.....................,.........

Which cell can survive without the help of other cells?

leaf cell
yeast cell
onion cell
muscle cell

Answers

Answer:

given below:

Explanation:

Q. A single cell organism can do everything a cell from a multi-cellular organism can do EXCEPT

answer choices

specialize

reproduce

use energy

make protein

The order of amino acids determines the structure and overall function of a protein. (True or False)?

Answers

Answer: TRUE

Explanation:

tbh not 100% sure

Which is not a function of the respiratory system? A. It warms air entering the body. B. It exchanges oxygen and carbon dioxide. C. It pumps blood to the organs.

Answers

Answer:

A. It warms air entering the body.

Explanation:

The respiratory system functions the organs and breathing.  B tells you that it exchanges oxygen and carbon dioxide, which is functioning breathing.  C is pumping blood into the organs, which is part of the respiratory system.

Hope this helped! :3

A man walks into a bar and orders a corona and two hurricanes. The bartender replies, “that’ll be 20.20!” explain

Answers

I GET IT BECAUSE THE YEAR 2020 HAD THOSE LOL

Answer:

because 2020 had Corona and hurricanes

HELP I NEED HELP ASAP
HELP I NEED HELP ASAP
HELP I NEED HELP ASAP
HELP I NEED HELP ASAP

What would most likely happen if coastal North Carolina increased implementation of wind energy?

A. Investment costs to taxpayers would decrease.
B. The population of greenhouse gases would decrease.
C. Turbines could be built in highly populated areas because of low noise pollution.
D. The energy output would be consistent because wind patterns are always predictable.

Answers

Answer:

The answer would be A because it would decrease

Answer:

A. Investment costs to taxpayers would decrease.

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7. Fill in the table below:

Original DNA strand
A
T
G
G
G
C
T
A
C
T
A
G
(a) Complementary DNA strand























(b) Complementary mRNA strand to DNA in line (a)
























(c) Amino Acids that would be made from the mRNA in line (b)

Answers

Answer:

T

A

C

C

C

G

A

T

G

A

T

C

Explanation:

Each base is paired as follows in DNA:

A paired with T

T paired with A

C paired with G

G paired with C

The letters refer to the primary nucleic acid bases: adenine, cytosine, guanine, and thymine.

b) mRNA strand:

A

U

G

G

G

C

U

A

C

U

A

G

c) Amino Acid Table below! Remember to start from the 5' end of mRNA (toward the 3' end) at a 'start codon'. So read through until you find a group of 3 that make up a start codon, then end with a 'stop codon'. I have to go take a final exam, but you got this!!!

PLS HELP MEEEE IM TIMED!!

Answers

Answer:

...34 minutes later...

Explanation:

Hi sorry Im probably too late anyway but I do hope you did good! Have a wonderful week!

When a slingshot is held in the position shown in the diagram, what kind
of energy is present?

Answers

Answer:

I can't see a diagram. But if the arrow is not moving, but about to be released it would be known as potential energy.

Describe the importance of a hypothesis in scientific inquiry.

Answers

Answer:

The fundamental concept of a theory is that there is no predetermined conclusion. A main feature of this phase of the experimental process is deriving conclusions from theories regarding the outcomes of possible studies and then conducting certain experiments to see if the predictions are supported.

Explanation:

A hypothesis is crucial in scientific inquiry as it serves as a testable and falsifiable explanation or prediction for a specific phenomenon or observation.

It provides a structured approach to investigating a research question and guides the design of experiments and data collection.

By formulating a hypothesis, researchers set a clear direction for their study and establish a basis for drawing conclusions based on evidence.

If the hypothesis is supported by data, it strengthens the understanding of the subject matter.

Alternatively, if the data refute the hypothesis, it encourages further exploration and refinement of scientific knowledge, promoting the advancement of understanding and discoveries in various fields.

Know more about scientific hypothesis:

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What is the
relationship between the raw materials and
the products in photosynthesis?

Answers

Answer:

Photosynthesis is the conversion of light energy into chemical energy by living organisms. The raw materials are carbon dioxide and water; the energy source is sunlight; and the end-products are oxygen and (energy rich) carbohydrates, for example sucrose and starch

Explanation:

what is formed during photosynthesis​

Answers

Answer:

Glucose and oxygen is produced

Explanation:

oxygen is usually released as a by-product and the glucose made is converted to starch and stored in leaves

plus ATP molecules are formed from excess light energy and is converted to a high energy chemical compound

What is MITOSIS really good at?

Answers

Answer:

Mitosis is the reason we can grow, heal wounds, and replace damaged cells. Mitosis is also important in organisms that reproduce asexually: this is the only way that these cells can reproduce. This is the one key process that sustains populations of asexual organisms.

Explanation:

This is what I found during my research and I hope this helped somehow. Have a good one!

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If stripped fish become more visible to predators, their fitness for their environment will decrease. Over time ____ will favor solid-colored fish and their numbers will grow.

Answers

Answer:

predators

Explanation:

Qual das alternativas abaixo nao corresponde a função da agua? Solvente. Mudança de temperatura. Não tranporta substâncias. Hidrólise

Answers

Paul I do not know your Spanish friends looking for attention everyone doesn't work so I'm not

What conditions are necessary for rocks to melt?

Answers

Answer:

In explanation.

Explanation:

The rock is pulled down by movements in the earth's crust and gets hotter and hotter as it goes deeper. It takes temperatures between 600 and 1,300 degrees Celsius (1,100 and 2,400 degrees Fahrenheit) to melt a rock, turning it into a substance called magma (molten rock).

The rock can be melted when high pressure and high temperature are applied to it, and due to the compression relaxation, the rock melts. The different types of rocks need different temperatures.

What is the effect of temperature on different substances?

Temperature plays an important roles in different substances, such as high and low temperatures, each with its own set of tasks. The high temperature can melt the solid substance into a liquid, and further heating converts the liquid into gas. Because of the high pressure and temperature in the earth's core, the rock is in a molten state, but when it comes out of the earth's core, after solidifying, it converts into solid rock. The low temperature converts the liquid into a solid, and food preservation is carried out by this process.  

Hence, the rock can be melted when high pressure and high temperature are applied to it, and due to the compression relaxation, the rock melts.

Learn more about the temperature here.

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