How does an atom becomes an ion?

The organelle that stores water in a cell and is much larger in plant cells is the ...

The data in the graph are the result of a paramecium being placed in a hypertonic salt solution. What change would most improve the usefulness of the graph?

in which of yhe following respiratory does gaseous exchange occur? A Alveoli B Trachea v v C Nasal passage D Bronchiole

Phytoplankton play an important role in which of the following biogeochemical cycles? A.) the nitrogen cycle B.) the phosphorus cycle C.) the carbobon cycle

Which of the following observations tells the biologist that the organism is eukaryotic? Choose all that apply. a It moves with flagella. b It has membrane-bound organelles. c It has a cell membrane.

Which species is an example of an autotroph? a. ladybird c. frog spawn b. bumblebee d. lotus flower

What can be inferred from the phylogenetic tree shown? A) Flagellates and Animals are more closely related than Fungi and Animals. B) Ciliates and Diplomads are more closely related than Plants and Ciliates.

The food web in a diverse ecosystem is

How many ATP equivalents are made from convention of succinyl-CoA to oxaloacetate? Assume that re-oxidation of NADH via the electron transport chain yields the equivalent of 3 ATP, and that re-oxidation of FADH2 yields 2 ATP.

A situation where friction is desirable.