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3 years ago

Defecation depends on

Biology

1 answer:

ASHA 777 [7]3 years ago

6 0

Answer: the correct answer is d. all of the above must happen for defecation to occur.

Explanation:

In response to the distention of the rectal wall, the receptors send sensory nerve impulses to the sacral spinal cord. Motor impulses from the cord travel along parasympathetic nerves back to the descending colon, sigmoid colon, rectum, and anus. The resulting contraction of the longitudinal rectal muscles shortens the rectum, thereby increasing the pressure within it. This then opens the internal sphincter.

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1. An organism's ___ shows what alleles they have for a particular gene, while the ____ is the physical expression of the trait.

AlekseyPX

Answer:

I believe the answer would be B

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2 years ago

According to your worldview, what value does a human person have? How does your position affect your stance on controversial bio

nalin [4]

A human life is so valuable that no single price should be placed on it. The effect on this stance on bioethical issues however, is relative.

<h3>Relativity of Human value to Bioethical issues</h3>

A person's stance on a bioethical issue can be based on which human life they value more, the person that will gain, or the one that will be affected.
With abortion, one might argue that the value of the mother is higher than the baby's because not having to take care of a child will give her a better life.
Designer babies might be more valuable because their lower rate of birth defects mean that they are tougher and less expensive to maintain.
Stem cell research could save many lives so more value might be placed on these lives than the embryos affected.

In conclusion, a person can see another life as valuable yet have relative views on bioethical issues.

Find out more on stem cell research at brainly.com/question/5409171.

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2 years ago

What do we call the area of land that drains into a specific river

Marysya12 [62]

The area of land that is drained by a particular river and its tributaries is called either a river basin or drainage basin.

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3 years ago

Read 2 more answers

DNA fingerprinting is a laboratory technique used to establish a link between biological evidence and a suspect in a criminal in

Julli [10]

No. none of the children have the markers for als

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2 years ago

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True or False. Animals vary tremendously in structure. Nevertheless, they can be categorized into a few basic body plans based o

NNADVOKAT [17]

Answer:

True

Explanation:

Animals can be categorized into 3 based on body symmetry

Those without any body symmetry (asymmetrical)
Those with bilateral body symmetry (bilateria)
Those with radial body symmetry (Radiata)

Animals can be categorized into 2 based on number of embryonic germ layer;

Those with two layers - endoderm and ectoderm (diplobastic)
Those with three layers - mesoderm in addition to ectoderm and endoderm (triploblastic)

Animals can be categorized based on presence/absence of body cavity or coelom;

No body cavity - acoelomates
False body cavity - pseudocoelomates
True body cavity - coelomates

Animals can be categorized into 2 based on characteristics of embryonic development;

Deuterostomes
Protosomes

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2 years ago