How come plant cells have a cell wall but our cells don't?

What is the difference between the photic zone and the aphotic zone in an aquatic biome? A. The aphotic zone receives sunlight, but the photic zone does not. B. The photic zone contains living organisms, but the aphotic zone does not. C.

Function is to allow certain materials to move in and out of the cell

Hoe many chromosomes so we get from our mom

What roles and responsibilities do engineers have for preventing the increased greenhouse effect?

What is coordinated stasis

How did Mendel make crosses with his plants? A., He planted the seeds of each type together, and they grew into a single plant. B., He cut the peas in half and combined them to grow a single plant. C.

Marissa is studying the solar system. which object in the solar system is a star? A. the sun B. saturn C. Earth's moon D. a comet

Which of these is NOT true of cells? 1. they are much like empty atoms 2. they were first discovered in the 1600's 3. they can be found in pond water 4. they contain a huge array of working parts

Which type of limitng affects a large population more than it effects a small population

What is the systemic circulatory shock and how does it affects absorption?