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katrin [286]
3 years ago
15

Should Cetaceans be considered mammals or fish? and why

Biology
1 answer:
Liula [17]3 years ago
8 0

Answer:

Mammal

Explanation:

A mammal is any any animal that is warm-blooded, gets milk from its mother, and is born alive, etc. Therefore a Cetacean should be considered a mammal.

Hope this helps!

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Identify the isolation mechanisms described using the drop-down menus. Differences in courtship or other behaviors prevent matin
lana [24]

Answer:

First, let's add the missing piece of information

Identify the isolation mechanisms by labeling either Geographical, Behavioral, Temporal, or Anatomical from the drop-down menu

The correctly identified mechanism is

1. Behavioral

2. Geographical

3. Temporal

4. Antomical

Explanation:

Differences in courtship or other behaviors prevent mating.- our answer is Behavioral

(Behavior isolation is the term used to describe reproductive isolation as a result of variations in courtship behaviours between the members of the same species occupying the same region).

Species can no longer interact because they are separated by physical boundaries.- it is Geographical

(Geographic isolation is seen in situations where the two populations of the same species get isolated by a geographical barrier such as mountain, island or river. This results in an inability to breed between the two populations as they become distinct new species).

Species do not interbreed because they breed at different times. this is definately Temporal.

(Temporal isolation is a form of reproductive isolation due to mating at separate times and seasons among two populations of the same species).

Species cannot physically mate due to genitalia or gametes being incompatible. And the correct answer is Antomical.

(Anatomical isolation

It is observed in situations when two populations of the same or distinct species cannot interbreed due to physical features such as genitalia and gametes formed in the organisms that make them uniquely separated).

Yes! this is the right answer. I just solved this question and its CORRECT.

6 0
3 years ago
Read 2 more answers
An enzyme is a protein that
andreev551 [17]

Answer:

?

Explanation:

need the rest of the question

5 0
2 years ago
In genetics, the dash symbol (–) is a "wild card" that stands for either the dominant allele or the recessive allele; for exampl
german

Answer:

 12     :    3      :    1

white : yellow : green

Explanation:

Given that genes A and B control the fruit colour in following ways:

A_B_ or A_bb = white

aaB_ = yellow

aabb =  green

The genes undergo independent assortment so:

AaBb X AaBb =

A_B_ : A_bb : aaB_ : aabb

  9     :    3     :   3      :   1

white : white : yellow: green

        12          :    3     :   1

Hence, ratio of white : yellow : green is 12: 3: 1

8 0
3 years ago
A certain cultivated herb is one of a group of closely related plants that thrive in soil with high concentrations of metals tha
notsponge [240]

Answer: the correct answer is (B) Whether others of the closely related group of plants also produce histidine in large quantities

Explanation:

This is a CAUSAL argument.

In a causal argument, A and B are observed together, and the CR concludes that A CAUSES B.

Premise = A and B are observed together:

A cultivated herb produces histidine and is able to grow in metal rich soils.

Conclusion = A causes B:

Histidine CAUSES the herb to be able to grow in metal rich soils.

One way to strengthen the conclusion that A causes B is give ANOTHER SUPPORTING EXAMPLE that links A to B.

4 0
2 years ago
What impacts do the amounts of available energy, water, and oxygen have on an ecosystem?
bearhunter [10]

Answer:

What impact do the available amounts of energy, water, and oxygen have on an ecosystem? They act as limiting factors. ... increasing the biodiversity of the ecosystem.

7 0
2 years ago
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