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Sonbull [250]
4 years ago
7

What is the trait that distinguishes primates, rodents/ rabbits, crocodiles, and dinosaurs/ birds from amphibians and earlier li

neages?
Biology
1 answer:
ANEK [815]4 years ago
3 0
The first land animals had to adapt to this whole new set of conditions that were significantly different than the ones in the water. 
One of the biggest challenges was to protect the embryo in these new harsh conditions. The amphibians and members of earlier lineages such as fish are dependent on water for their reproduction, but reptiles, birds, and mammals have developed the amniotic egg during the course of their evolutionary history enabling them to produce offspringing on the ground.
Members of this group either carry their offspring inside the female's womb or lay eggs that are protected with an outer tough layer. Both the young in the womb and the ones inside an egg are protected but the embryonic membranes amnion and chorion that contain water and nutrients necessary for the development of the embryo and therefore are called amniotes.
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Answer:The question has already been answerd here >https://www.proprofs.com/discuss/q/520196/which-of-the-following-is-not-part-darwins-theory-evolution

In summery the answer is: E. Acquired traits can be inherited

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All of the following statements are true concerning skeletal muscles EXCEPT:A.Skeletal muscles control involuntary body function
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Answer:

your answer is a.

Explanation:

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Monosaccharides can be classified based on the number of carbons they contain and the type of group attached to the molecule. Se
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<h2>Monosaccharides</h2>

Explanation:

Monosaccharides are the simplest form of sugars found in innumerable common food items such as honey, cane sugar, fruits

Monosaccharides are divided into two groups depending on the presence of functional groups,if aldehyde group is present then it is known aldoses and if ketone group is present then it is known as ketoses

On the basis of carbon atoms they can be classified as: triose(3),tetrose(4),pentose(5),hexose(6) and so on

a. erythrose : tetrose ketose-It is not correctly paired because erythrose is a tetrose monosaccharide which has one aldehyde group hence is an aldose

b. dihydroxyacetone : triose ketose-It is correctly paired;it is an aldose-ketose pair

c. erythrulose : tetrose aldose-It is not correctly paired because erythrulose is a tetrose monosaccharide having ketone as functional group hence is a ketose

d. fructose : hexose ketose-it is correctly paired;It is an anomer because in D-fructose carbonyl group is at C-2 hence C-2 is the anomeric carbon

e. ribose : hexose aldose-it is not correctly paired because ribose is an aldo pentose not hexose;ribose is an aldo-ketose pair

f. glyceraldehyde : triose aldose-it is correctly paired;an aldo group

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The presence of a mutant lac repressor that could not bind lactose would result in _______ transcription even when lactose was p
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Answer:

Explanation:

The presence of a mutant lac repressor that could not bind lactose would result in __promotor_____ transcription even when lactose was present because the mutant repressor would remain bound to the lac __operator________.a.lots of; promoterb.no; promoterc.no; operatord.lots of; operator

The binding of a repressor blocks the action of RNA polymerase.

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3 years ago
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