A recessive allele is expressed if there is no dominant allele present.

A) True B) False

Five functions of hypothalamus

Which of these is an environment effect of farming? A. Temperature increase B. Soil erosion C. Habitat succession D. Natural disasters

How humans can influence ecosystem by changing the environment?

Which of the following shows the correct order of hierarchy from largest to smallest? A. Biosphere, biome, population, community, ecosystem, species B. Biosphere, biome, ecosystem, population, community, species C.

Differentiate Humoral immunity vs cell mediated immunity

What the surface temperature of the stars classify as white dwarfs be classified higheror lower than that of the stars classified as supergiants

Living animal cells, each with a salt concentration of 1%, are placed in a solution of 30% salt. Which of the following will occur? A.

The duck-billed platypus has 52 chromosomes in its body cells. When the platypus's body cells divide by mitosis, how many chromosomes will each daughter cell have?

What is a prokaryotes in biolog

Which of the following does not represent conditions believed by scientists to have been present on early Earth? A. An atmosphere thick with water vapor B. energy in the form of ultraviolet radiation C. extremely cold temperatures D.