A biomass pyramid differs by showing the __ at each trophic level.

A) numbers of organisms

B) weight of organisms

C) mass of elements

D) mass of organic matter

A hornless bull is crossed with three cows, A, B, and C. Cow A is horned and produces calf A', which is also horned. Cow B is hornless and produces calf B', which is horned. Cow C is horned and produces calf C', which is hornless.

Select all the offspring phenotypes that could be produced from a BbEE x bbee cross (shown above). black fur, red eyes black fur, black eyes white fur, black eyes white fur, red eyes

What determines how radioactive an atom is

Explain why all single food items have more than one type of organic compound

Why must an organism have the same amount of adenine as thymine

Which of the following is true of receptors for dynamic equilibrium? The receptors for dynamic equilibrium are called maculae. The receptors for dynamic equilibrium are not stimulated by head movement.

Pea plants are tall if they have the genotype TT or Tt, and they are short if they have genotype tt. A tall plant is mated with a short plant. Which outcome below would indicate that the tall parent plant was heterozygous? a.

Which best defines the relationship between speed and velocity? Speed is velocity with displacement. Velocity is speed with displacement. Speed is based on a specific direction. Velocity is based on distance.

What does membrane mean

How is gene therapy fundamentally different from treating disease using traditional medicine?