After a bottleneck event, the population of rabbits in an area has significantly decreased. A decade later, the population of the rabbits recovers to its original numbers. What statement is correct about the rabbits?
A. They are more likely to survive environmental changes because of the bottleneck event.
B. They are as likely to survive environmental changes because their population recovered.
C. They are as likely to survive environmental changes because of the bottleneck event.
D. They are less likely to environmental changes because of the bottleneck event.
C. They are as likely to survive environmental changes because of the bottleneck event.
The bottleneck event may have caused a reduction in genetic diversity among the rabbit population, but the fact that they were able to recover their population numbers suggests that the surviving rabbits were able to adapt and thrive in their environment despite the initial decrease. This resilience may indicate that they are as likely to survive future environmental changes as they were before the bottleneck event.
Facts or data are types of_____
A. Evidence.
B. Models.
C. Explanations.
D. Reasoning.
A. Evidence.
Facts and data can be used as evidence to support or refute a hypothesis or claim. They provide concrete information that can be analyzed and used to draw conclusions or make informed decisions.
What change is observed in a distribution curve for a trait affected by directional selection?
A. It shifts to the left.
B. It shifts to the right
C. It shifts to the right and to the left.
D. It shifts either to the right or to the left.
B. It shifts to the right.
Directional selection occurs when individuals at one end of the phenotype distribution have higher fitness, leading to a shift in the distribution curve towards that end. In the case of directional selection, the distribution curve shifts to the right as the trait values of the population tend to become skewed towards the end favored by natural selection.
In a population of birds, brightly colored males and very dull male survive best. Which type of selection is this, and what is most likely true about the proportion of males of intermediate coloring?
A. Directional; males of intermediate coloring make up a small part of the population.
B. Stabilizing; males of intermediate coloring make up the greatest part of the population.
C. Directional; males of intermediate coloring make up the greatest part of the population.
D. Disruptive; males of intermediate coloring make up a small part of the population.
D. Disruptive; males of intermediate coloring make up a small part of the population.
In disruptive selection, individuals at both extremes of the phenotype distribution have higher fitness compared to individuals with intermediate phenotypes. In this case, brightly colored males and very dull males are favored, leading to the suppression of males with intermediate coloring. Therefore, males of intermediate coloring are likely to make up a small part of the population.
Which action an example of genetic modification ( creating GMOs)?
A. Making crops that are resistant to pesticides and insects
B. Raising animals via animal husbandry for food purposes
C. Breeding dogs for specific traits like size, coat color, and temperament
D. Selecting fruit that is fleshy with small seeds and planting those the following season
A. Making crops that are resistant to pesticides and insects
Genetic modification involves altering the genetic material of an organism to achieve a desired trait, such as making crops resistant to pesticides and insects. This is typically done through genetic engineering techniques to introduce specific genes into the organism's genome.