All the termites in a rotten log, plus all the ants that eat the termites, plus all the fungi that eat the log make up the log's

population

ecosystem

community

biosphere

Position time motion

Trace the path of a drop of venous blood from the left ankle to the right side of the brain.

A large population of laboratory animals has been allowed to breed randomly for a number of generations. After several generations, 25% of the animals display a recessive trait (aa), the same percentage as at the beginning of the breeding program.

If a sealed balloon is filled and kept in a deep freezer for a period of time, it will shrink in size. Determine the best reasoning for this outcome.

The number of differences between cytochrome c of humans and cytochrome c of other organisms is as follows: Rhesus monkey - 1 difference; pigeon - 12 differences; fruit fly - 24 differences.

The life cycle of nonvascular plants includes an alternation of generations between a a. diploid sporophyte and a diploid gametophyte. b. haploid sporophyte and a haploid gametophyte. c. diploid sporophyte and a haploid gametophyte. d.

In order to make new nucleic acids your body needs food that contains carbon, hydrogen, and oxygen as well as A) sodium & chlorine B) acids & bases C) potassium & calcium D) nitrogen & phosphorus

Which of the following is the term used to describe a body resistance to change in motion

A particular gene can have 2 forms, called alleles. Which statement best describes the difference between the dominant allele and the recessive allele?

Skeletal muscle is often replaced with a dense irregular connective tissue when the muscle is damaged, leading to what is commonly known as scar tissue.