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Otrada [13]
3 years ago
8

Use Darwin's theory of Natural Selection to explain the process by which the four-legged land animal, A, may have evolved, over

about 20 million years, from the fish-like creature, C, in the swampy conditions of the time.
Biology
1 answer:
Len [333]3 years ago
5 0

Answer:

Due to environmental conditions.

Explanation:

With the passage of time, environmental conditions change which causes the evolution of of four legged land animals from fish like creature. This change occurs due to change in environment. In water, there is no need for legs because fish moves with the help of fins and tail but the organisms that lives on land has legs in order to move from one place to another so we can say that change in the physical structure of organism occurs due to environment.

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What are bees family
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Answer:

There are seven currently recognized families of bees: Apidae, Megachilidae, Halictidae, Andrenidae, Colletidae, Melittidae, and Stenotritidae. The largest one, Apidae, includes our well-known honey bees and bumble bees. However, these bees make up only a fraction of total bee diversity even within their own family.

Explanation:

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if a sponge was treated with a drug that specifically inhibited the activity of neuros and nothing else, what imoact would you p
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Sponges belong to the Phylum Porifera and hence are one of the most primitive organisms. The sponge would not be impacted by the drug.

Their bodies are asymmetrical. frame form can be cylindrical, vase-like, rounded or sac-like. they're diploblastic animals with layers, the outer dermal layer and the internal gastral layer. there's a gelatinous, non-cell mesoglea, in among these layers.

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3 0
1 year ago
(a) (1 pt) Assume diastolic blood pressure is normally distributed in a certain population, with a mean of 82 mmHg and a standar
Natali [406]

Answer:

2.275% of this population has a diastolic blood pressure less than 60 mmHg

Explanation:

Hello!

Yo have the distribution of the diastolic blood pressure in a certain population. Be X: diastolic blood pressure of an individual, X~N(μ;δ²)

Where

μ= 82mmHg

δ=11 mmHg

You need to calculate the probability of an individual of this population having less than 60mmHg diastolic blood pressure.

Symbolically:

P(X<60)

To obtain the value of probability you need to standardize the value of diastolic pressure so that you can obtain it from the standard normal distribution. The way to standardize the value is to subtract the mean and divide by the standard deviation

Z= (X-μ)/δ~N(0;1)

P(Z<(60-82)/11)

P(Z<-2)= 0.02275

I hope it helps!

3 0
3 years ago
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zlopas [31]
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4 years ago
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