The pond behind Serge's house, with all the living and non-living parts, is an example of a (n)

A) biome.

B) ecosystem.

C) habitat.

D) population.

Which structure of a flower releases pollen? anther sepal pistil ovary

Which types of molecules make up the majority of a cell's plasma membrane? A. DNA and RNA B. proteins and lipids C. salts and water D. sugars and starches

People generally know that citrus fruits are good food sources of vitamin C, but there are plenty of non-citrus sources as well. What are some of the non-citrus foods are good sources of vitamin C?

One type of RNA forms an important part of both subunits of a ribosome, where proteins are assembled. this type of RNA is called?

What conditions are most likely to produce a hurricane? A. Low pressure system over warm land B. Low pressure system over warm ocean water C. High pressure system over cold land D. High pressure system over cold ocean water

A change in the natural sequence of bases in DNA structure is called a A) mutation. B) reconstruction. C) revolution. D) translation.

A rabbit is an example of a - - - while a hyena is an example of a - - - producer parasite herbivore carnivore host carnivore

Which organelle is not found in plant cells? A) vacuoles B) mitochondria C) chloroplast D) centrioles

Gina is driving her car down the street. She has a teddy bear sitting on the back seat. A dog runs in front of Gina's car, so she quickly applies the brakes.

The term enzymes, was first used in 1878. The term is derived from a Greek word that means in yeast because the yeast cells were first to reveal enzyme activity in living organisms.