To do this, they needed to acquire a very special internal organelle, called the chloroplast. Where did they acquire this internal organelle? (hint: it's the same place we got our mitochondria)

Which agency publishes the food code

What is the special feature of the leaves of C4 plants?

Why was a beaker used for heating the solution? The beaker is the only one that can withstand high temperatures. The beaker's wide mouth makes it easier to add and remove test tubes without spilling A beaker fits the whole surface of the hot plate.

Which of the following statements are true about a nucleoid? (Choose all that apply) A nucleoid is found in both prokaryotic and eukaryotic cells. A nucleoid is a complex of DNA bound to proteins. A nucleoid is surrounded by a nuclear envelope.

Which of the following statements about pesticides and herbicides is not true? a. They can enter waterways, polluting them. b. Once the pesticides and herbicides break down, they are no longer harmful. c.

This is a type of protein found in a cell membrane which regulatesthe coming and going of substances into or out of the cell

Competition over resources occurs between organisms

What is the percentage of human guanine

A gram-negative, nonsporulating rod that is highly motile, oxidase negative, facultatively aerobic, ferments glucose, and urease-positive is likely to be of which genus?

3. Explain Peter and Rosemary Grants study of finches. How did this support Darwin's hypothesis.