Pick all the characteristics below that describe compounds

two or more elements

chemically combined elements

one type of atom

cannot be separated into a simpler form

definite proportions

How are proteins distinguished from each other? a. by the amounts of carbon, oxygen, and hydrogen they contain b. by the kinds of fatty acids they contain c. by the kinds of bonds that join their monomers d.

A biologist discovers two populations of wolf spiders whose members appear identical. Members of one population are found in the leaf litter deep within the woods. Members of the other population are found in the grass at the edge of the woods.

What variables can affect the number of eggs laid by a chicken?

At which boundary does subduction stop occurring, resulting in a mountain range? oceanic-oceanic convergent boundary oceanic-oceanic divergent boundary continental-continental convergent boundary continental-continental divergent boundary

A neuroscientist records neuronal firing from hillary's retina and notices that her m-cones and l-cones are both firing at an equal rate. From this, hillary is probably looking at a:

Even though it is the phenotype that is exposed to a particular environment, the genotype frequencies of a population can change over time. explain.

How do restriction endonucleases work

In the fall semester, matthew contracted pneumonia and had to drop his classes and return home to recuperate. he was already underweight, and he lost more weight during his illness.

Need the answer very fast How does oxygen enter the capillaries surrounding the lung? A with the cell membrane pumps B through diffusion

A wolf pack hunts, kills, and feeds on a moose. In this interaction, the moose is a A. host. B. prey. C. mutualist. D. predator.