About __ of the mass of the cell is water

In order to obtain energy plants must do what

The primary function of a neuron is a. the insulation of an impulse b. the generation of a nerve impulse c. the production of ATP to provide energy for impulse speed d. the formation of cerebrospinal fluid

Which of the following is not an example of mutualism? A Moths drinking nectar and pollinating night-blooming flowers B Bees drinking nectar and pollinating many angiosperms of our food supply Beekeepers maintaining colonies of bees and moving them

In what material did robert hooke said he saw in cells

What comprises a codon? A) a complementary section of RNA B) a sequence of three nucleotides C) a random sequence of nitrogen bases D) a section of DNA referred to as a gene

When the carbon atoms of the glucose molecule are broken apart in glycolysis and the Krebs cycle, what is the result?

Which of the following are items that are a threat to biodiversity? pollution and succession habitat loss and predation poaching and habitat loss succession and poaching

What weather follows a cold front?

A healthy environment depends on bio geochemical cycles maintaining a balance of input and output. When forests are cut down, which process of the carbon cycle is most affected?

Aircraft that achieve forward propulsion by expelling a stream of fluid are called