Are pandas really bears?

3. What impact do the amounts of available energy, water, and oxygen have on an ecosystem? (1) They act as limiting factors. (2) They are used as nutrients. (3) They recycle the residue of dead organisms. (4) They control environmental temperature.

Describe some structural or behavioral adaptation that a snake has. What challenge of life does it overcome?

How do scientists develop scientific explanations about subjects that are impossible to study through controlled experiments?

Which sentence uses a colon correctly? Manatees need only a few things to survive up to age 60, enough food and to be left alone. Manatees need only a few things to survive: up to age 60 enough food and to be left alone.

What does atp synthase need to synthesize atp

An arterial condition in which there is thickening, hardening, and loss of elasticity of the walls of arteries-resulting in decreased blood supply-especially to the lower extremities and cerebrum is known as hardening of the arteries

Which parts of a cell are made of molecules?

Which one of the following statements about the troposphere is true? Select one: a. The troposphere is the atmospheric layer farthest from the earth's surface. b. The tropospheric gases move because of convection currents. c.

10. In which organelle must DNA replication occur? * O cell membrane Cell Wall O Ribosome O Nucleus

What allele is expressed as a phenotype only when two copies are present in the genotype? A. Dominant allele B. Recessive allele