Adaptation can be ________________.

When living organisms make changes according to their environment, it is called ________________.

The most influential current alternative to the biological species concept is

________ is a science of classification of organisms in which some traits are considered of greater importance than others.

_______ traits are evidence of a shared ancestry, while ___ traits show convergent evolution.

Which of the following is an example of sexual dimorphism?

Genetic drift is most powerful in_______________.

In natural selection, the product of variations is because of ________

Theory of natural selection of organisms states that organisms that are best adapted to the environment _______

Which statement is correct with respect to the food chain?

An orchid living on a tree exhibit____________.

Shelford’s law of tolerance suggests that organisms with a wide tolerance limit for environmental factors show:

What is the name of the trait that helps creatures to live in their environment?

Which of the following is NOT a condition for Hardy-Weinberg Equilibrium?

According to the Hardy-Weinberg equilibrium, if no unfavorable influences exist, genetic variation in a population will remain stable from one generation to the next. Furthermore, because genotype and allele frequencies are in equilibrium when mating is random in a large population with no disruptive influences, the rule predicts that they will remain constant.
• When a population reaches Hardy-Weinberg equilibrium for a gene, it is not evolving, and allele frequencies do not alter over time.
• The five fundamental Hardy-Weinberg assumptions are that there is no mutation, random mating, no gene flow, an infinite population size, and no selection.
• A gene's population may evolve (the allele frequencies of the gene may change) if the presumptions are not true for that gene.