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4 years ago

Based on the information in the graph, what can you conclude about the world?

Biology

1 answer:

Minchanka [31]4 years ago

5 0

Answer:

The answer is C. The birth rate is higher than the death rate.

We can see in the graph that in Africa the birth rate is very high, it is expected that by the year 2050 in Africa there will be 2 billion people, which is more than 1000% of the people living in Africa today. This means that more people are born than those who die.

nation:

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How might a weathered mountain appear different from an un-weathered mountain? A. The weathered mountain would be taller B. The

Brut [27]

B. the weathered mountain would appear rounder in shape.

3 0

3 years ago

Which of the following is a palindromic sequence?

N76 [4]

Answer:

GGATCC

CCTAGG.

Explanation:

Pallindromic sequence may be defined as the sequence of the nucleotides that reads in the certain direction on which the strand reads and they are complementary to each other.

These sequences when read in 5' to 3' direction, the sequence is similar from 3' to 5' direction as well. The sequence GGATCC when reads from the oppposite direction results in the same sequence CCTAGG. Hence, these are pallindromic sequences.

Thus, the correct answer is option (d).

6 0

3 years ago

In plants tall (T) is dominant to short (t) and round seed is dominant to wrinkled seeds (r). If a parent is short and wrinkled

Nuetrik [128]

Answer:

Parent cross= ttrr (short, wrinkled) × TtRr (hybrid)

POSSIBLE GAMETES BY EACH PARENT:

ttrr - tr, tr, tr, and tr

TtRr - TR, Tr, tR, and tr

Explanation:

This question involves two genes in a certain plant. One gene is coding for height while the other is coding for seed shape. The alleles for tallness (T) and round seeds (R) is dominant over the alleles for shortness (t) and wrinkled seeds (r).

According to this question, a parent that is short and wrinkled (ttrr) is crossed with another parent that is hybrid (TtRr) for both traits. This means that the parent cross is as follows: ttrr × TtRr

The possible combination of gametes that will be produced by each parent is as follows:

ttrr - tr, tr, tr, and tr

TtRr - TR, Tr, tR, and tr

See attached image for the punnet square using these gametes.

6 0

3 years ago

In an experiment, the independent variable is the variable you change on purpose. The dependent variable is what you measure. Tr

Strike441 [17]

Answer:

True

Explanation:

An independent variable is the variable you think is the cause,while a dependent variable is the effect. you manipulate the independent variable and measure the outcome in the dependent variable.

3 0

4 years ago

Read 2 more answers

The intricate plumage of male birds of paradise has become increasingly elaborate throughout their evolution due to females mati

jekas [21]

Answer:

3. sexual selection

Explanation:

Because artificial selection is the one made by humans like dog breeds.

Disruptive selection is when extreme values for a trait in a population are favored like big and small sizes. Stabilizing is when the trait is pushed towards the average. Sexual selection is when the trait aids in competition among individuals for access to preferred mates.

5 0

3 years ago