Why is the having of chromosomes essential for sexual reproduction?

Answers

Answer 1

Answer:

Because meiosis creates cells that are destined to become gametes

Explanation:


Related Questions

Why is the sepal important to the development of the flower.

Answers

Answer:

The initial function of sepals is to provide support and protection for a flower bud as they close up around it until it's ready to bloom. The sepals surround the petals and the reproductive organs inside the flower and protect them from harsh environmental conditions and drying out.

Explanation:

brainliest pls :3


HELP ME PLEASE

What is dysgeusia?


A. a disorder that causes a bad taste

B. a disorder that causes a reduced ability to taste

C. a disorder that causes a reduced appetite

D. a disorder that causes a reduced ability to smell

Answers

Answer:

B. a disorder that causes a reduced ability to taste

Explanation:

Answer:

it's B. a disorder that causes a reduced ability to taste

can i get some help on this please ​

Answers

I think it’s b because I had this on a test before so just try b❤️
I believe it is b hope this helps

true or false your body's first line of defense against pathogens includes phagocytosis and fever​

Answers

I think true, :)) hopefully that helps!!

Answer:

true

hope this helps :)

Explanation:

Your body's first line of defense would be mucous membranes, which prevent bacteria from entering the body.The immune system uses phagocytosis when the cell is trying to destroy something, like a virus or an infected cell.

Explain how bones, muscles, tendons, and ligaments work together to move a chickens wing

Answers

Answer:

If you pull on the bicep muscles of the chickens wing, you will pull on the tendon that connects the muscle to the bone. Then the tendon will pull on the bone that it is attached to and cause it to move.

Without tendons, muscles and bones are independent from one another, so by connecting muscles and bones, whenever a muscle contracts or moves, the bone moves as well. These tendons are known as 'connective tissue'.

The ligaments will allow the bones to move but will keep the bones together in the joint. Muscles surrounding the bone are actually the tissue of the chicken wing that is commonly referred to as the meat.

The ligaments maintain the bones' togetherness in the joint while allowing for movement of the bones. As you can see, moving the chicken wing requires numerous components to work together.

What bones, muscles, tendons, ligaments work together?

We can see that the muscles contract and expand the wing in opposite directions by pulling on them. Flexors and extensors are the muscle pairs that cooperate.

A joint bends when the flexor muscle contracts, and straightens when the extensor muscle contracts. The flexor relaxes as the extensor contracts.

Our body's movement and stability are facilitated by the coordinated action of our bones, muscles, and joints. Tendons and ligaments are also crucial in this situation. Ligaments help to hold things in place, and tendons link muscles to bones, so we can move.

Therefore, The bone to which the tendon is linked is then pulled, which moves the bone. Ligaments connect bones to one another.

Learn more about ligaments here:

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Marcie is writing an article on the Big Bang Theory. What fact should she include in it? A. The universe started expanding after the Big Bang. B. The universe started shrinking after the Big Bang. C. The universe coalesced into one solar system after the Big Bang. D. The universe ended at the Big Bang.

Answers

Answer:

C. The universe coalesced into one solar system after the Big Bang.

Explanation:

This is true because, since she is writing about Big Bang theory, she would have to include how the universe was able to expand to one solar system made up of different planetary bodies. This explanation would help someone reading her writeup to understand what the Big Bang theory is all about.

Answer:

C

Explanation:

The correct answer is (C) because Marcie has the simple information but she is missing how the the (Big Ban) happened

what is the answer pls help me fast I need it now

Answers

I believe it is 50%. Tell me if I’m incorrect. Hope this helps. Good luck in your learning journey :)

why does energy need to be stored?

Answers

Answer:

all living organisms need energy to grow and reproduce and respond to their environments metabolism is the set of life-sustaining chemical processes that enables organisms transform the chemical energy stored in molecules into energy that can be used later for cellular processes

Explanation:

it is stored for later use and cellular processes

Raquel tends to get extremely upset if she does not get her way, and she feels that it is a reflection of how much of a failure she is bound to be. raquel would most likely benefit from __________. a. systematic desensitization b. family therapy c. rational-emotive behavior therapy d. aversion therapy

Answers

Rational-emotive behavior is about the therapy needed to cool down the mind and Raquel tends to get extremely upset so for her the correct answer is option c. rational-emotive behavior therapy.

Find methods to reply to conditions that are practical and now no longer a reaction to irrational thoughts.Recognize that despite the fact that they can't manipulate the activities of life, they have got the cap potential to pick out their manner of responding and coping with tough conditions.

What is rational-emotive behavior therapy?

REBT is an action-orientated method it truly is centered on supporting humans with ideas addressing irrational ideals and discovering ways to manipulate their emotions, thoughts, and behaviors in a healthier, extra practical manner. According to REBT, our cognition, emotions, and conduct are connected.

Thus it is clear that rational-emotive behavior therapy is Raquel would most likely benefit.

To learn more about aversion therapy refer to the link ;

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Answer:

C

Explanation:

help me please
Which term describes the two groups of plants that do not need water to reproduce?
Paleozoic plants
cotyledons
spermatophytes
embryophytes

Answers

Spermatophyte is the term that describes the two groups of plants that do not need water to reproduce.

Water is not necessary for fertilization or reproduction in spermatophytes since siphonogamy occurs where the male gametes are transported via the pollen tube. Siphonogamy is a condition in plants in which the male cells are transferred to the eggs via the development of pollen tubes. Seed plants are often siphonogamous.

Spermatophyte is a group of plants including gymnosperms and angiosperms. Gymnosperms are cone-bearing plants, while angiosperms are flower-bearing plants. They reproduce sexually through the means of seeds.

Spermatophytes initially develop pollen for fertilization. The pollen is then transferred to the ovary via pollen tubes, resulting in the production of seeds. Pollen is transferred by vectors like air, any insect, etc. Thus, they do not require water for reproduction.

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How many organ systems are there in the human body?

Thanks :)

Answers

Answer:

there are so many

Explanation:

reproductive organs, respiratory organs, sensory organs, and others

The movement of molecules against a concentration gradient is called __.

Answers

Answer:

Your answer is Active Transport

Explanation:

hope this helps you!!!

How can i help my friend not to be influenced by media ??

Answers

Show them how unrealistic media can be

which factor least influences the rate of photosynthesis?

A) Atmospheric concentration of carbon dioxide
B) Time of day
C) Number of chloroplasts
D) Concentration of nitrogen in the air

Answers

Question:-

Which factor least influences the rate of photosynthesis?

Options :-

A) Atmospheric concentration of carbon dioxide

B) Time of day

C) Number of chloroplasts

D) Concentration of nitrogen in the air

Answer :-

D) Concentration of nitrogen in the air

Explanation :-

Concentration of nitrogen in air is about 78% and it's insert in nature bez neither the planets nor the animals have the ability to break three bonds of N2 molecule (gas ) so any alterations in its concentration will not make any influence in photosynthesis concentration of CO2 make influence in the maximum but it also makes its effect upto some extent and that extent is called the saturation point Time of the day is effects like in morning and Evening photosynthesis is very less in comparison to the photosynthesis in afternoonRate of photosynthesis is directly proportional to number of chloroplast as more the number of chloroplast more will be the photosynthesis

The factor that least influences the rate of photosynthesis is the Concentration of nitrogen in the air. Thus, the correct option for this question is D.

What is Photosynthesis?

Photosynthesis may be defined as a type of process through which green plants and some photosynthetic algae synthesize their own food in the form of glucose with the help of carbon dioxide and water in the presence of sunlight.

The process of photosynthesis significantly depends on the amount and color of sunlight along with the amount of carbon dioxide because they are the reactants of this reaction while the amount of sugar is delivered as a product of the reaction.

Therefore, the factor that least influences the rate of photosynthesis is the Concentration of nitrogen in the air. Thus, the correct option for this question is D.

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Explain. How mitotic cell division results in more cells that allow growth of the organism, can differentiate to create different cell types, and replace dead cells to maintain a complex organism.

Answers

Answer:

The mitotic cell division results in more cells that allow growth of the organism because of mitosis. Mitosis is when a single cell divides into two identical daughter cells. The major purpose of mitosis is for growth and to replace worn out cells.

hope this helps :)

Explanation:

A larger population density always indicates a larger population size. Please select the best answer from the choices provided T F

Answers

Answer:

the answer its false

Explanation:

I just take the quiz

Answer:

False

Explanation:

The major blood vessel of the upper arm is know as the _____ artery which is a continuation of the axillary artery

A. Exertion
B. Artery
C. Systolic
D. Brachial

Answers

Answer:

Brachial Artery

Explanation:

Upper Arm: Brachial Artery. The brachial artery is a continuation of the axillary artery past the lower border of the teres major. It is the main supply of blood for the arm.

Answer:

D.

Explanation:

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Have an amazing day!

1.
Which weather pattern can drop torrential amounts of rain, create storm surges, and destroy structures with high winds?

drought
tornado
hurricane
thunderstorm

2.
What is the main energy source for a hurricane?

winds blowing from high pressure to low pressure
warm air masses
cool ocean water
warm ocean water

3.
What makes the weather inside the eye of the storm calm and clear?

high pressure air
low pressure air
clockwise rotation
counterclockwise rotation

I will mark brainliest.

*These three questions are strictly for study.

Answers

#1

Hurricane

Thunder storm can't do storm surges like hurricane .Rest can destroy with winds but hurricane can bring rain .

#2

winds blowing from high pressure to low .

When ocean becomes hot low air pressure is created.

#3

Clock wise rotation .

The low pressure is surrounded by high pressure which forces the hurricane to turn around its eye.

What is a proper hypothesis to guide your experiment?

Answers

Answer:

hope it helps...

Explanation:

When conducting scientific experiments, researchers develop hypotheses to guide experimental design. A hypothesis is a suggested explanation that is both testable and falsifiable. You must be able to test your hypothesis, and it must be possible to prove your hypothesis true or false.

12.) Latitude and longitude coordinates are used to determine

A. An exact location on Earth without the use of landmarks or addresses

B. The depth of the water at that point

C. The distance from one point to another

D. The temperature and climate of an ecosystem

13.) The deepest place in the ocean is found in the Pacific Ocean and is called what?

A Great Pacific Reef
B. Marianas Trench
C.Japan Trench
D. Abyssal Plain

Answers

Answer:

D

Explanation:

What difference in axonal signaling determines whether we experience a mild or a strong sensation?.

Answers

Answer:

frequency of action potentials

Explanation:

Use the drop-down menus to determine which system the following structures belong to. pituitary gland thyroid gland salivary glands

Answers

The following glands may be classified by using the drop-down menus:

Pituitary Gland ------ Endocrine Thyroid Gland ------- Endocrine Salivary Gland ------- Exocrine.

What do you mean by Glands?

A gland is an organ that produces and releases substances that perform a specific function in the body. They perform a key role in the metabolism process.

Endocrine Glands secrete hormones whereas exocrine glands secrete enzymes. The pituitary gland secretes growth hormone, LH, etc, while the thyroid gland secretes thyroxine hormone. So, both of these glands are classified under Endocrine glands. But the salivary gland produces an enzyme called salivary amylases, which leads to the formation of saliva. Hence, it is classified under the exocrine gland.

Therefore, all the above-described glands are classified on the basis of their functions.

To learn more about Glands, refer to the link:

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Answer:

pituitary gland : Endocrine
thyroid gland : Endocrine
salivary glands : Exocrine

Explanation:

Got it right on edge! Good Luck <3

The main job of the kidneys is to __.

keep the body cool
clean waste from the blood
keep the body warm
give the body a sense of touch

Answers

Answer: The main job of the kidneys is to clean waste from the blood.

This is necessary for your body to function normally.

Answer:

the answer is the second one.:)

Explanation:

The grid like lattice of proteins that gives the cell shape and support

Answers

What’s the question?

Why is it bad for a species if its population is too large?
A large population attracts fewer predators.
It makes it less likely that disease will spread.
The public is interested in preserving only endangered species.
There might not be enough food to support the large population.

Answers

Answer:

D: There might not be enough food to support the large population.

Explanation:

True or False: Radiation and chemicals in cigarettes can cause cancer because they increase the likelihood of base pairing errors during replication.

Answers

Answer:

The answer is true. There is honestly NO safe way to consume Tobacco products. they are prone to cause cancer.

Explanation:

does this help you???

Mkk nnenenrnenenrn rnrntnr t r t r. R r r f r r r r r r e r r

Answers

Answer:

Yes my dude just yes

Answer: What are you saying

Explanation:

what type of restriction enzymes are used in genetic engineering to mend DNA segments together ?

Answers

DNA ligase



Many restriction enzymes make staggered cuts, producing ends with single-stranded DNA overhangs. However, some produce blunt ends. DNA ligase is a DNA-joining enzyme. If two pieces of DNA have matching ends, ligase can link them to form a single, unbroken molecule of DNA.

what are the levels of organization in a living thing

Answers

Answer:cells

Explanation:cells

what floral family has(9)+1 arrangement of anther in the androcium.
a. malvacea
b. rutacea
c fabacea
d. caesalpinaceae​

Answers

Explanation:

floral family has(9)+1 arrangement of anther in the androcium.

fabacea

option c

ANSWER -: Fabacea

OPTION C

The family leguminosae or Fabaceae also termed as tea family it distributed all over the world this family is third largest family of angiosperms plant Structure are which have rhizobium bacteria for nitrogen fixation trees from herb , shrub and root nodules stem or erect or climber and leaves alternate compound or simple velation reticulate.

thus,, option C is correct fabacea are floral family has 9 + 1 arrangement of another in the androcium .

fabacea is related to pea family.

______________________
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