W27 Fluency

which of the following is the arrangement of parts that makes something complex?

• effect

• structure

• function

• cause

which of the following describes what happens when an otter consumes oysters?

• 90% of the energy consumed is stored

• 90% of energy is used for biological processes

• 90% of the biomass of the otter is converted to oyster biomass

which of the following is a heterozygous individual that carries one mutated allele and one wild-type allele?

• mRNA

• autosomal recessive

• carrier

• x-linked traits

which of the following is the ability of an ecosystem to return to a balanced state after a disturbance?

• carrying capacity

• stability

• disruption

• hypothalamus

which of the following is the study of the loss of biodiversity and ways this loss can be prevented?

• experimental design

• hypothesis

• conservation

• oil and gas refineries

which of the following is a species who that the ecosystem largely depends on for stability?

• competition

• keystone species

• primary consumer

• predator

which of the following is the change in the occurrence of a trait in a population because it is advantageous for that environment?

• variation

• adaptation

• random mutation

• climate change

which of the following describes the fact that due to random mutations there are many presentations of a particular trait in a population?

• natural selection

• change to DNA bases

• variation

• adaptation

which of the following correctly describes the process by which populations change over time as organisms with better traits survive and reproduce?

• migration patterns

• natural selection

• adaptation

• vestigial structure

which of the following correctly describes a control group?

• the group that does not have its independent variable changed

• the variable that scientists measure

• the group whose independent variable is changed

• the group that is not included in the study