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coldgirl [10]
3 years ago
6

The Cenozoic Era follows the end of the _______ period.

Biology
2 answers:
BaLLatris [955]3 years ago
8 0
I'm gonna say its # 2 Jurassic
tensa zangetsu [6.8K]3 years ago
7 0

Answer:

Option (D)

Explanation:

The Cenozoic era starts after the end of the Cretaceous. It is marked by the global mass extinction event known as the Cretaceous-Tertiary (K-T) boundary. The Cenozoic era started from about 65 million years back to the recent.

The new species started to evolve from the start of this era and there were abundant land animals during this era, and so this era is often regarded as the age of mammals. This is the most recent era in the geological time scale and is marked by the diverse group of organisms that has appeared after a long evolutionary process.

The Cenozoic era is again divided into three parts-

1) <u>Tertiary-</u> It is divided into (a) Palaeogene, (b) Eocene, and (c) Oligocene

2) <u>Neogene-</u> It is divided into (a) Miocene and (b) Pliocene

3) <u>Quarternary</u>- It is divided into (a) Pleistocene and (b) Holocene

Thus, the correct answer is option (D).

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Answer:

A. It uses the animal’s cellular machinery to reproduce inside the animal.

Explanation:

I would go with A because since it is a virus it cannot live outside the body and thus needs to rely on host's cell for metabolism as viruses are not capable of having their own metabolism.

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What kind of molecule is represented in the diagram?
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4 years ago
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The Canada lynx is a rare wildcat in Minnesota. The lynx has large "snowshoe' like feet that enables it to walk on top of deep,
Veseljchak [2.6K]

Answer: B)  Predator/prey

=========================================================

Explanation:

The lynx is the predator that hunts and eats the snowshoe hare, which is the prey.

The graph shows that when the hare population is large, so is the predator population because they rely on the hares as a source of food. However, the more predators there are, the less prey there will be. This causes the prey population to decrease. In turn, this decrease causes the predator population to decrease as well. If there's less food, then some of the lynx population will starve to death.

At some point, the hare population will rebound and go back up due to less predators eating them. They have a better chance to survive. As the hare population goes up, so does the lynx population. They're both strongly linked together, and we have this cyclic pattern the graph indicates. You could say this is "the cycle of life" or "cycle of nature" so to speak.

This is a very simplistic viewpoint because it does not account for other factors such as other predators and other prey, and it also doesn't take account of things like habitat loss for instance. Despite that, such predator-prey models are still useful to understand the connection between the two species.

6 0
3 years ago
Read 2 more answers
Before a captive breeding program and subsequent reintroduction of the black-footed ferret it is believed that their total popul
irga5000 [103]

Answer:

a) 99.93%

b) 99.98%

Explanation:

Given that:

Total population size was only around 18 individuals ( for  black-footed ferret)

If the annual survival rate in the wild was 0.4%.

a)

What is the probability that all 18 would have died in a single year?

To find that; we multiply the annual survival rate in the wild with the total population; which is:

(0.4%×18) = 0.072%

Then; we subtract it from a total of 100% in order to determine the probability that all 18 would have died in a single year.

= (100.00% - 0.072%)

= 99.93%

b)

What is the probability that all 18 would have died in a single year if canine distemper was present?

Given that;

Because of the presence of canine distemper disease, the annual mortality rate might have been as high as 0.89.

To determine the probability; we have:

1 - Annual mortality rate = annual survival rate

1 - 0.89 = 0.11 %

Therefore, 0.11% of 18 individuals = (0.0011 × 18)

= 0.0198%

Probability that all 18 would have died in a single year if canine distemper was present = 100 - probability of annual survival rate

= (100 - 0.0198)%

= 99.98%

7 0
3 years ago
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