Biology End of Year Review

Which changes would most likely limit the growth of a plant-eating animal population? Select four options.

• Steady rainfall increases the number of plants.

• A spring freeze kills many plants.

• The number of predators increases.

• A harmful plant disease spreads through the area.

• A harmful animal disease spreads among the population.

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-4

A population of ducks lives at a small pond that is slowly drying up. Which statement describes what will most likely happen over time?

• Ducks will immigrate from the population

• Ducks will emigrate to the population.

• Ducks will emigrate from the population.

• Ducks will immigrate to the population.

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-4

The graph shows the population of gray fox in an area of the United States.

Which best describes the population size between 1990 and 2011?

• mostly stable and unchanged

• many increases and decreases but declined overall

• slowly increased over time

• several sharp declines but grew overall

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-4

A population of frogs in a pond began with 67 individuals. Over one year, the population changed to 53.

Which are two possible reasons for the change within the frog population?

• emigration or increase in death rate

• emigration or increase in birth rate

• immigration or decrease in death rate

• immigration or increase in birth rate

Tags

NGSS.MS-LS2-4

Which statement is part of the cell theory?

• All cells have a nucleus

• Cells are the basic unit of life

• Cells can only be seen with a microscope

• All cells are identical

Answer explanation

The correct statement is 'Cells are the basic unit of life,' which is a fundamental principle of cell theory. The other options are incorrect as not all cells have a nucleus, can be seen with the naked eye, and are not identical.

What is the primary function of the respiratory system?

• To breathe in oxygen and expel carbon dioxide

• To control body movements

Tags

DOK Level 1: Recall

In genetics, what does the term "phenotype" refer to?

• The genetic makeup of an organism

• The physical appearance or traits of an organism

• The process of cell division

• The location of a gene on a chromosome

Tags

NGSS.MS-LS4-4

Which of the following best describes a dominant allele?

• An allele that is masked by a recessive allele

• An allele that is expressed only in the homozygous state

• An allele that is always expressed when present

• An allele that is found only in males

What is the basic unit of heredity that is passed from parents to offspring?

• Chromosome

• Gene

• DNA

• Protein

Tags

NGSS.MS-LS3-2

What is the term for the genetic makeup of an organism?

• Phenotype

• Genotype

Tags

DOK Level 1: Recall