Which statement is true?(1 point) The human body uses 20 amino acids to form all types of proteins.

tRNA is attached to specific proteins in the cell’s cytoplasm.

Amino acids do not need to be assembled in a particular order.

Amino acids form a polypeptide chain via carbon-carbon bonds.

Use this diagram of an animal cell to answer the question. where does the first stage of cellular respiration occur? w x y z

Agene pool: a) is the collection of all the alleles found in a single species b) is the collection of all the alleles found in a single population c) is the collection of all the chromosomes found in a single population d) is the collection of genes in a species that allow the individuals to swim

Aprocedure done under controlled conditions to test a hypothesis is an inquiry.