The cells of human body display variations in shape and size. Explain.

Answers

Answer 1

Answer:

Answer:

Shape and size vary from cell to cell according to their functions and composition. For example, a nerve cell is long and branched, meant for the transmission of signals throughout our body while a muscle cell is small and spindle-shaped which helps in movement.

Explanation:

Related Questions

Varicose veins seen in the superficial veins of the legs are unsightly and are often treated by surgical removal. However, even without these veins being present, the return of all blood toward the heart from the legs is not diminished. This is primarily because ______. Varicose veins seen in the superficial veins of the legs are unsightly and are often treated by surgical removal. However, even without these veins being present, the return of all blood toward the heart from the legs is not diminished. This is primarily because ______. the precapillary sphincters will contract to prevent blood from flowing toward areas where veins have been removed blood can still return via the deep veins in the absence of the venous valves (that have been removed), the blood will backflow into the capillary beds and then flow into other venules All of the listed responses are correct.
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How many gallons of water are needed to print a day’s supply of newsprint for the United States?a. 1,000 gallons b. 15,000,000 gallons c. 350 gallons d. 300,000,000 gallons
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Which of the following is a negative effect of algal blooms on the environment?a. transport of carbon to the bottom of the ocean
b. production of oxygen
c. consumption of water’s oxygen
d. large source of energy

Answers

c. consumption of waters' oxygen Although algae produces oxygen during photosynthesis, in an algae bloom the algae is growing at a rapid rate which causes the algae to use more oxygen then it actually produces. When algae is growing rapidly it needs to use oxygen in order to break down glucose into energy through a process called cellular respiration. Cellular respiration requires large amounts of oxygen, so the faster the algae is growing the faster it uses oxygen draining it from the waters the algae lives in and thereby depleting the aquatic environment of oxygen.

c would be the answer just took the test

Which stimulant is also referred to as crystal or crank and leaves the user feeling confused, shaky, and paranoid when it wears off

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The stimulant that is also referred to as crystal or crank and leaves the user feeling confused, shaky, and paranoid when it wears off is known as methamphetamine, or meth, for short. You may know about crystal meth if you ever watched the show Breaking Bad - the effects of using that drug can be seen there. Amphetamine is used for treating ADHD, narcolepsy, and obesity. Cocaine, or coke, is a recreational drug.

Having freckles is dominant (F). and not having freckles is recessive (f). a mother has FT and a father has Ft. if they have a child, which genotype will make their child not have freckles?

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Answer: A genotype Tt (f) will make their child not to have freckles. Only offspring with alleles containing the dominant gene 'F' will have freckles.

Explanation:

MENDEL'S PRINCIPLES OF INHERITANCE can be used to understand how genes and their alleles are passed down from one generation to the next.

The 3 principles include:

1. Law Of Dominance And Uniformity: Some alleles are dominant while others are recessive; an organism with at least one dominant allele will display the effect of the dominant allele.

2. Law of segregation: During gamete formation, the alleles for each gene segregate from each other so that each gamete carries only one allele for each gene.

3. Law of independent assortment: Genes of different traits can segregate independently during the formation of gametes.

The father because of Ft

Nitrogen fixation makes nitrogen gas useful to crops.

true or false

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Answer:

True

Explanation:

The nitrogen fixation is a process that involves conversion of atmospheric nitrogen to nitrates in the soil. This process is mainly performed by nitrogen-fixing bacteria present in the soil.

The nitrogen fixation is important for plants and animals. The nitrogen present in the atmosphere cannot be used directly by animals and plants. The nitrogen is main constituent of chlorophyll that is required for the process of photosynthesis and for amino acids that synthesize proteins. Thus, Nitrogen fixation makes nitrogen gas useful to crops.

It is actually True!

Which of the following is the region where the respiratory path has to cross the digestive pathway?

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The pharynx is where the respiratory path crosses the digestive pathway.

The pharynx is a cavity behind the nose and mouth, which connects them to the esophagus.

How are the alleles for sex-linked traits inherited? They are passed from the Y chromosome in parents to the X chromosome in offspring. They are passed from the X chromosome in parents to the XY chromosome in offspring. They are passed from parents to offspring on the X and Y chromosomes. They are passed from any chromosome in the parents to the X or Y chromosome in the offspring.

Answers

Alleles for sex-linked traits are inherited in such a way that they are passed from parents to offspring on the X and Y chromosomes.

Generally, sex-linked traits are traits or genes that are found on the sex chromosomes only. In humans, females have XX sex chromosomes while males have XY sex chromosomes.

Thus, X-linked traits are passed from parents to offspring via the X chromosomes only. Since both males and females have X chromosomes, it means both genders can have X-linked traits.

Y-linked traits are passed from parents to offspring via the Y chromosomes only. Since only males have Y-chromosomes, it means that only the male gender can have Y-linked traits.

More on sex-linked traits can be found here: brainly.com/question/1381309

Answer:

they are passed from parent to offspring on the X and Y chromosomes

i just took this test on ed :D

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In rabbits, white fur is a recessive trait. Based on this fact, what statement BEST describes this rabbit's genotype?