How did the first people to arrive in the Americas support themselves?

1) by fishing

2) by gathering

3) by hunting big animals

4) by hunting small animals

Which monomer makes up a polypeptide? fatty acid phospholipid polyunsaturated fat amino acid

How do the skin proteins-keratin, melanin, elastin, and collagen-each contribute to our physical identity? how about the dermal papillae?

An element is made up of A. a mixture of different types of atoms. B. different types of cells. C. only one type of atom. D. different types of atoms that have been combined chemically.

How may mutations in each region affect gene expression? Mutation in any consensus sequence will cause mutations in the gene sequence. Mutation in any consensus sequence is likely to alter how efficiently a protein binds to the promoter.

What type of information does a pedigree contain

How does an f + cell differ from an hfr cell? how does an f + cell differ from an hfr cell? hfr strains have the f plasmid integrated into the chromosome. f + cells have no plasmids. hfr cells cannot perform conjugation.

How can the environment be organized into levels from simple to complex?

A biologist who studies the transmission of genes from one generation to the next would be called?

A carbohydrate is broken down into smaller sugars, this is an example of what type of energy? A. chemical B. mechanical C. sound D. nuclear

Which of the following is true of a eukaryotic cell in a multicellular organism? a. possess ribosomes b. possess a cell membrane c. possess a nucleus d. possess cytoplasm e. able to perform all life functions f. possess DNA