True or false: the ability for an animal to use nitrogen in the air depends on the decomposition of animals by nitrogen fixing bacteria

Relation to protein production and packaging in a eukaryotic cell, which step occurs first? A. The ER membrane pinches off to encircle the protein. B. In the nucleus DNA instructions are copied as RNA messages. C.

Nucleotides make up? A. Nucleic acids B. Proteins C. Carbohydrates D. lipids

Two or more sudstances that are mixed together but not chemically combined

Is a renewable resource is one that replenishes itself over long periods of time

How does cromolyn mechanism inhibit degranulation of action calcium channel?

Which genotype is homozygous? a. XxTt b. XXTt c. xxTT d. Xxtt

In what organelle does the process of respiration occur

In the case of the salt NaCl, chloride (Cl-) gives up an electron that is taken by sodium (Na+), this is an example of . A hydrogen bond A covalent bond An ionic bond A non-polar molecule

What stores information in a cell? a. proteins b. carbohydrates c. lipids d. dna

In Tinker v. Des Moines, why did the Supreme Court rule in favor of the students who wore armbands?