Question

1. A nectar-eating bird has a slightly more curved beak than average for its species. This allows the bird to more easily access nectar from plants. During the bird's lifetime, it loses a toe on its left foot due to an accident. It learns to compensate for this loss and is not greatly impacted. Which of this bird's traits could potentially spread through the species' future population? A. The slightly more curved beak because it is an acquired trait that would be beneficial to future offspring.

B. The lack of a toe on the left foot because it is an acquired trait that would be beneficial to future offspring.
C. The slightly more curved beak because it is a beneficial trait that is encoded in the bird's genes.
D. The lack of a toe on the left foot because it is a beneficial trait that is encoded in the bird's genes. 2. Which statement best explains how the effect of a particular allele can change the genetic makeup of a population over time? A. An allele that increases the chances of a member finding shelter will appear in a larger percentage of the next generation's offspring.
B. An allele that increases the chances of a member cooperating with other members will appear in a larger percentage of the next generation's offspring.
C. An allele that increases the chances of a member obtaining food will appear in a larger percentage of the next generation's offspring.
D. An allele that increases the chances of a member reproducing will appear in a larger percentage of the next generation's offspring.

Answer 1

1. The correct answer would be option C

Acquired traits such as loss of eye, tail, or toe during fight or accident, knowledge, skills such as painting, karate et cetera are not passed from parent to the offspring.

These traits are not produced by DNA, instead, they are produced by environmental influences.

In contrast, inherited traits are those which are controlled by the DNA of an organism such as eye color, hair color, beak shape and size et cetera. These traits are passed from generations over generations as they are controlled by DNA.

2. The correct answer would be option D.

It can be explained with the help of natural selection. The traits which increase the survival and reproductive rate of the organism are selected and are increased in a population.

Answer 2

1) C
The curved beak was due to the bird's genes and will be passed on.
2) D
Of all the beneficial allele, the one that promotes the ability to reproduce will increase in percentage from one generation to the next.