Mutations are not always predictable. Which word best describes this situation?

A) evident

B) abnormal

C) random

Only about 10 percent of the energy in an organism is passed on to the next level of a food chain. look at this food chain: grass → rabbit → hawk what percentage of the energy stored by the grass is passed on to the hawk?

Are foxes related to the cat or dog family

What type of monomer is alanine

What is the feature of the sponges body It crawls along rocks It has two cell layers It grows tentacles It contains tissues

Why is it necessary to convert carbohydrates into sugars? So they can be absorbed by the body Because sugars taste better than carbohydrates The body cannot get sugars from other sources Chemical energy is only found in sugars

Plant cells can synthesize organic molecules and later break them down to extract that energy for performing life processes. These activities require direct interaction between the

Which of the following is a key element of naturalism

Jan noticed that when she put a tomato in water, it sank. When she put an apple in water, it floated. Why did the tomato sink while the apple floated?

an ___organism has different types of cells that are specialized for various functions. (fill in the blank)

What process reshuffles allele combinations between homologous chromosomes? a. genetic recombination b. asexual reproduction c. independent assortment d. mitosis