Which of the following factors affect population size? Check all that apply.

birth rate

death rate

immigration

emigration

disease

competition and predation

human activity

natural disasters and occurrences

What are plasmids?

A/an is a type of cancer that occurs in blood-making cells of the red bone marrow.

Compare and contrast the advantages and disadvantages of sexual and asexual reproduction

What is speciation? A. The formation of species B. The joining of two species C. The mating of two organisms D. Interbreeding between species

What type of erosion is mostly likely to occur during a flood

How is plasma constructed in blood?

Which of the following is descriptive of pertussis? a. Initial stage resembling the common old b. Prolonged illness, sometimes symptoms may last for months. c. Bacterial disease treated with erythromycin c. All of these are descriptive of pertussis

Which statement about the cell membrane is true? A. It contains cellulose and sugars that are involved in communication. B. It is present in animal cells only. C. It is rigid and elastic for supporting the cell's shape. D.

Hailey needs to identify internal costs so she can price her product accordingly. Which cost will be part of Hailey's calculation? A. cost of endangering species B. cost of deforestation C. cost of air pollution D. cost of disposing by-products E.

What is the main difference between prokaryotic and most eukaryotes cells? A. Eukaryotic cells from multi-cell tissues, Prokaryotic cells are single cell. B. Eukaryotic cells from single cell, Prokaryotic cells are multi-cell tissues. C.