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bixtya [17]
2 years ago
6

What is the importance of the amniotic egg?

Biology
2 answers:
Alja [10]2 years ago
7 0

Answer: The amniotic egg was an evolutionary invention that allowed the first reptiles to colonize dry land more than 300 million years ago. Fishes and amphibians must lay their eggs in water and therefore cannot live far from water. But thanks to the amniotic egg, reptiles can lay their eggs nearly anywhere on dry land.

Explanation:

Bogdan [553]2 years ago
4 0

Answer:

The amniotic egg was an evolutionary invention that allowed the first reptiles to colonize dry land more than 300 million years ago. Fishes and amphibians must lay their eggs in water and therefore cannot live far from water. But thanks to the amniotic egg, reptiles can lay their eggs nearly anywhere on dry land.

Explanation:

An amniotic egg has a clump of nutrients that is used to sustain the embryo during development. This clump of nutrients is called the yolk, and the yolk sac encloses it.

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Forensic scientists can match missing persons and their families by matching maternal DNA to the missing individual.
iris [78.8K]

Answer:

The mitochondrial DNA (mtDNA) is passed down from the mother to the children almost unchanged. The analysis of mtDNA has provided the forensic scientist with essential tools for determining the source of DNA that they have recovered even from small biological samples. Thus, the answer to the question above is letter B.

Explanation:

4 0
1 year ago
What institutional status provides no specific regulatory coverage for laboratory strains of rats and mice?
Marta_Voda [28]

Answer: USDA registration for research institute.

Explanation:

United States Department of Agriculture ( USDA) is a federal agency in the United States which was founded by Abraham Lincoln. This agency plays a major role in the regulation and maintenance of farming, ranching, and forestry industries, as well as regulating aspects of food quality & safety. The agencies established under the USDA includes:

--> Agricultural research services

--> Farm service agency and

--> Animal and Plant health inspection service.

Through the Animal and Plant inspection services, the USDA administers the Animal Welfare Act (AWA) which purposefully excluded laboratory strains of rats and mice because they are breed specifically for research purposes.

5 0
2 years ago
Read 2 more answers
What is the name given to the male cell in the flower​
Kamila [148]

Answer:

The name given to the male cell in the flower is called stamens and usually surrounds the pistil.

Explanation:

Hope this helps.

5 0
2 years ago
Describe the pathway in a eukaryotic, somatic cell, from DNA to extracellularly secreted protein. Include detailed descriptions
Andreas93 [3]

Answer: The pathway involves the transcription and translation processes.

Explanation:

The DNA present in the somatic cells of the eukaryotic organisms undergoes transcription in which the DNA is used as a template to form mRNA. It occurs in nucleus

The mRNA encodes for a amino acid chain for a specific protein in the process of translation. It occurs in cytoplasm and require a cell organelle called ribosome.

The amino acid sequence for different proteins are different.

3 0
2 years ago
Glucose is reabsorbed _______. a) by secondary active transport b) by facilitated diffusion through transmembrane proteins c) in
Inessa [10]

Answer:

All of the above are correct.

Explanation:

The plasma membrane is the selectively permeable membrane that allows the movement of some selected particles only. Different types of movement like diffusion, osmosis and active transport occurs in the body.

Glucose acts as the primary energy source of the body. Glucose can be reabosrbed in the body by the facilitated diffusion and by the secondary active transport as well depending on the site of the cell. Glucose can enter in the peritubular capillaries as well.

Thus, the correct answer is option (d).

5 0
2 years ago
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