Login or Sign Up
Menu
Ask a New Question

Which term means making sense of information?(1 point)

Responses

evidence
evidence

investigation
investigation

reasoning
reasoning

explanation

is this correct i thought you couldnt give answers lier

you told me you couldnt give answers

a. evidence.

Facts or data are types of

a
evidence.
b
reasoning.
c
models
d
explanations.

is this correct

Yes, that is correct. Facts or data are types of evidence.

Why are the gene pools of small populations reduced compared to those of larger populations?

a
inbreeding
b
lack of advantageous traits
c
lack of suitable mates
d
bottleneck events

The correct answer is d. bottleneck events. When a small population undergoes a bottleneck event, it loses genetic variation, and certain alleles may be lost or become fixed at higher frequencies due to chance. This results in a smaller gene pool, which means there are fewer variations in the gene pool of the population as a whole. Inbreeding (a) may contribute to the reduction of genetic diversity, but it is not the primary reason why the gene pools of small populations are reduced compared to larger populations. A lack of advantageous traits (b) or suitable mates (c) may limit the adaptation of a population, but they are not directly related to the reduction of genetic variation in a population.

Consider the following scenario: A drought hits the habitat of a semi-aquatic bird population. All ponds dry up, and fish populations decline. There are two groups of birds in the population that differ in leg length and diet. Long-legged birds eat fish, while short-legged birds eat insects. Drought has little effect on insect populations.

What is the main selective pressure in this scenario?



a
drought
b
insect population
c
leg length
d
fish population

The main selective pressure in this scenario is d. fish population. The drought and the consequent decline in fish populations exert selective pressure on the long-legged birds that eat fish. As fish become less available, the long-legged birds that can reach deeper into the remaining water pools to catch fish have an advantage over the short-legged birds that rely on insects. Over time, the proportion of long-legged birds in the population is likely to increase as a result of natural selection. Thus, the selection pressure on leg length is a consequence of the selective pressure on fish availability. The insect population (b) is not affected by the drought, and thus, it is not a selective pressure. While the drought itself (a) may be a stressor for the entire population, it is not the main selective pressure acting on the bird population.