Which statement best describes energy of an ecosystem?

Which best describes the role of auxin? Which best describes the role of auxin?

What does the rough endoplasmic reticulum do in an animal cell?

The taiga biome is found on more continents than the alpine biome. True or False

Which type of communication style would someone have if they worry about the thoughts and feelings of others, rather than their own? A. aggressive B. passive-aggressive C. passive D. assertive

What are planets made of

Researchers want to know if the concentration of ammonia in the James River is above the safe level for consumption. They take samples and develop a data set.

What process produces usable energy in cells

Whales have what seem like remnants of a pelvis and femur, as shown here. What are these structures an example of? transitional structures analogous structures vestigial structures adapted structures

In humans, having freckles is dominant to no freckles. In a genetic cross of a homozygous dominant parent with a homozygous recessive parent, what percent of the offspring should have freckles? a. 100 b. 75 c. 50 d. 20

Natural selection will only led to evolution if it allows for an organism to