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3 years ago

What charetieistic is used to classsify a mammal as monotremes marispuial or placental mamel

Biology

2 answers:

Mrac [35]3 years ago

7 0

Answer:

Monotremes are mammals that lay eggs.

A placental mammal develops inside its mother's body until its body systems

can function on their own.

Explanation:

mariarad [96]3 years ago

5 0

Answer:

I'm presuming you mean the three different subcatagories or taxa as there around 25/26 mammalian orders. The three taxa are - Prototheria or Monotreme = Mammals that lay eggs Metatheria Marsupial = Mammals with external development pouches.

Explanation:

You might be interested in

How is the ruminant digestive system different than human digestive system?

bulgar [2K]

background info:

Digestive system in animals is an important system in the context of digestion of ingested food into simpler forms that could be easily absorbed by the body cells.

This provides all the essential compounds needed by the body for the existence and development of the living organism. Different digestive systems have evolved according to different species, their feeding patterns, and their habitats.

answer:

Ruminant species survive only on plant matter. They are herbivorous animals.

Therefore, the digestive system of ruminants is evolved with the presence of a rumen which is a complex stomach with four different compartments.

Humans are omnivorous who depend on plant and animal matter both thus, their digestive system composes of one stomach.

This is the key difference between digestion of humans and ruminants.

hope this helped

8 0

2 years ago

Read 2 more answers

You are attempting to see if a suspect is associated with a crime. The only evidence you have is a tiny drop of blood from the c

kykrilka [37]

Answer:

There are no options in this question but generally a sample of DNA can be increased;

By using Polymerase Chain Reaction (PCR) technique.

Explanation:

This question describes the application of making molecular biology to solving a crime problem; a branch called forensics. In this case where an insufficient small amount of DNA sample was recovered from the blood in a crime scene, the polymerase chain reaction technique, commonly known as PCR can be used to increase the DNA sample.

In the 1980's, a molecular technique used to amplify part of a template DNA strand to produce several copies of it, was invented by Kary Mullis and his colleagues. This amplification refers to the numerical increase in the number of DNA sequence.

6 0

3 years ago

Name an organ that made up of smooth<br> muscles.

Lina20 [59]

Answer: digestive system

Explanation:

5 0

2 years ago

Read 2 more answers

In Drosophila, the genes for body coloration and eye size are on different chromosomes. Normal-colored bodies are dominant to eb

Yuri [45]

Answer:

225 flies

Explanation:

Let gene for body colour : A

Let gene for eye type : B

Parent 1 : normal body and normal eyes = AABB

Parent 2: ebony body and eyeless = aabb

F1 : AABB X aabb = AaBb ( all have normal body and normal eye )

F1 progeny is self crossed given that the two genes are on different chromosomes which means they show independent assortment:

AaBb X AaBb =

A_B_ = normal body, normal eyes = 9

aaB_ = ebony body, normal eyes = 3

A_bb = normal body, eyeless = 3

aabb = ebony body, eyeless = 1

Hence the ratio is 9 : 3 : 3 : 1

Out of the 400 flies:

(9/16) * 400 = 225 flies have normal body colour and normal eyes

7 0

2 years ago

Hydgxxboiggiuogu6uto

andrey2020 [161]

Answer:

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Explanation:

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5 0

2 years ago