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Nonamiya [84]
3 years ago
15

The appendix, an extension of the large intestine appears, although this is debated, to have little

Biology
1 answer:
NARA [144]3 years ago
4 0

Answer: Vestigial organ

Explanation:

Vestigial organs are those organs which were functional in ancestral organisms belonging to the same species but due to the course of evolution of body forms they become non-functional. They can be found in the body either in the same form as used to appear in the ancestors or in rudimentary or degenerated forms.

The human appendix is one of the examples of vestigial organs. It looks like a narrow tube which forms a link with a colon of the large intestine. It was functional in human herbivorous ancestors as it used to help in digestion of variety of vegetables and other plant products. The change of diet along with due course of evolution caused the appendix to become useless. But the appendix physical form remained the same in humans.

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What is the function of chloroplast in eukaryotic cells?.
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Answer:

Chloroplasts are plant cell organelles that convert light energy into relatively stable chemical energy via the photosynthetic process. By doing so, they sustain life on Earth.

7 0
3 years ago
Which of the following is the model of DNA replication that best accounts for our current understanding of the genetic replicati
mr Goodwill [35]

Answer:

The correct answer is B

Explanation:

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2 years ago
Choose the items that complete the sentence about the key features of f(x) = 8x. The y-intercept is Choose... , the asymptote is
prisoha [69]

Answer:

I suppose that the equation is:

f(x) = 8/x

(You wrote 8x, this is a linear function, so it has no asymptotes, then I assume that the actual function was 8/x)

The y-intercept is the value such that  f(x) = 0

Notice that there is no value of x such that 8/x = 0  (if the numerator is never zero, then the quotient can't be zero)

So we do not have an y-intercept.

The asymptote:

Here we have four:

if x tends to zero from the negative side, then:

8/x tends to negative infinity.

if x tends to zero from the positive side, then:

8/x tends to positive infinity.

These two asymptotes can be written as:

\lim_{n \to \_-0} \frac{8}{x} = -\infty\\ \lim_{n \to \_+0} \frac{8}{x} = +\infty

We also have two when x tends to plus infinity (and 8/x goes to zero) and when x tends to negative infinity, such that the function tends to zero again, these two can be written as:

\lim_{n \to \infty} \frac{8}{x}  = 0\\ \lim_{n \to -\infty} \frac{8}{x}  = 0

Finally, the range:

The only value that y never reaches (only on limits) is:

y = 0

Then the range is the set of all real numbers except the zero, or:

R :  { x ∈ R / {0} }

3 0
3 years ago
Which two factors that influence weather are caused by the uneven heating of Earth’s surface by sunlight?
Troyanec [42]

Answer: Option A.

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Uneven heating of the Earth surface is talking about convection. This lead to some part of the atmosphere to be warmer than the other part and there is alterations in volume and pressure which can influence weather, updrafts and cause thunderstorm.

The formation of convection currents in the atmosphere influence weather and are caused by the uneven heating of Earth’s surface by sunlight.

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