What is a flat irreguraly shaped cell that make up the top and, bottom layers of leaves

Individuals with the disorder xeroderma pigmentosum are hypersensitive to sunlight, and mutations to the dna in their skin cells are left uncorrected. why are the mutations not corrected in individuals with this disorder?

Consumers rely on other organisms. why?

Is snow a type of precipitation? Explain why or why not.

A gland that aids in the production and release of sperm is called

Hideki has had difficulty sleeping. his doctor wishes to examine his sleep patterns to determine the cause of hideki's sleep problems. the doctor will most like perform a (n)

Where is the most liquid water on earth, and what would have to be done so that humans could drink it?

Explain when and how dire wolves became extinct.

Aquaporin allows water molecules to move very rapidly across a plasma membrane. what would be the best definition of this process?

Which best describes the advantage of pest resistance? Pests are mutated and tolerate more. Pesticides become less effective. Farmers do not have to use harsh chemicals to save their crops. Farmers can kills weeds without killing their cash crop.

Which is better 1 big cell or 4 small cells