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Art [367]
3 years ago
7

What would happen if spindle fibers weren't present in plant cell mitosis?

Biology
1 answer:
Taya2010 [7]3 years ago
3 0

Mitotic spindles are microtubule-based structures that separate chromosomes during mitosis. So the cell would lack structure.


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What blood types are possible for a child whose parents both have AB blood type?
erma4kov [3.2K]

Answer:

-blood type a

-blood type b

-SOMETIMES type o but very rarely.

Explanation:

Each biological parent donates one of their two ABO alleles to their child. A mother who is blood type O can only pass an O allele to her son or daughter. A father who is blood type AB could pass either an A or a B allele to his son or daughter. While a child could have the same blood type as one of his/her parents, it doesn't always happen that way. For example, parents with AB and O blood types can either have children with blood type A or blood type B.

7 0
3 years ago
Frequently, a group of related species will each have a unique courtship ritual that must be performed correctly for both partne
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Behavioral Isolation
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3 years ago
The major means of propulsion through the alimentary canal is peristalsis.<br><br> True<br> False
aalyn [17]

Answer:

True

Explanation:

Peristalsis is the wave-like motion of the walls of the alimentary canal that allow food to move along the lumen of the alimentary canal towards the posterior (anus). These waves are powered by the contraction and relaxation of the smooth muscles.

3 0
3 years ago
What happens when the seafloor spreads?
riadik2000 [5.3K]

Answer:

B is the answer...............

6 0
3 years ago
The seventh cranial nerve: <br> A. olfactory <br> B. trochlear <br> C. vagus<br> D. facial
Tamiku [17]

Answer:

The correct answer is D. The seventh cranial nerve is the facial nerve.

Explanation:

The facial nerve is a mixed cranial nerve, that is, it contains both sensory and motor fibers, present in mammals including humans in which it forms the seventh cranial nerve. Being a cranial nerve, it emits two fibers, one that runs on the right side of the face and the contralateral on the left. It starts of the brain stem, just between the brainstem and the medulla and controls the facial expression muscles, as well as the taste in the previous two thirds of the tongue. It also supplies parasympathetic preganglionic innervation to various nerve nodes in the head and neck.

6 0
3 years ago
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