What is the term for the nine amino acids that the body cannot manufacture?

describe how the structure of the chloroplast and mitochondria controls movement across the membranes.

Sex cells or gametes, also known as eggs and sperm, which have half the chromosomes of the organism in them are made during which type of cell division?

What role has land use by humans played in the ongoing changes in biological diversity?

What term is used to describe the tenacity of muscovite?

Average atomic mass of strontium

Describe what type of macromolecule lactose is and what the monomer of the macromolecule is

When Santos stands in a swimming pool and looks at his feet, his legs appear to be bent. Which is the term for this phenomenon? A) diffraction B) dispersion C) reflection D) refraction

What triggers pfiesteria change from a harmless algae feeder to a toxin producing fish killer?

Antibodies are made when animals detect a foreign antigen. All mammals carry albumin in their blood. How was a rabbit antibody against albumin created? Was this lethal to the rabbit? Explain you reasoning.

Why are there species instead of a continuum of various animals?