Which organelle makes the proteins that are needed by the cell? a) cell membrane b) golgi apparatus c) ribosomes d) nucleus

A forest fire burns down most of the trees in a large forest l. the animals that live in the trees are forced to move to other areas. what kind of disturbance is this? A. cyclical B. small C. primary D. secondary

What is the relationship between an animal's behavior and homeostasis?

Through the various biogeochemical cycles, such as the water cycle, the carbon cycle, and the nitrogen cycle, elements and molecules are recycled. Energy, however, cannot be recycled. Instead, energy in ecosystems must be continuously supplied by

In which of the following ways might the effects of a mutation in a skin cell be different from those of a mutation in a sperm cell?

If 15%of dna sample is made of thymine how much is for cytosine

Who holds the public property rights? A. individuals B. government C. businesses D. local communities

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)