Which of the following describes a cell? A cell is a group of organ systems that all contain the same type of tissues.

A cell is a collection of tissues that all perform the same function.

A cell is the smallest unit of organization in a living thing.

A cell is a group of related organs that work together for a common purpose.

Humans are believed to have evolved in coastal regions in east africa. the region had an abundant supply of fish for early humanoids to eat. when scientists analyze the fads gene they see an interesting pattern. people whose families have lived in this area of east africa for generation show a high level of diversity in alleles for the fads gene. conversely, people whose families had migrated inland a moderate distance from sources of fish showed a much lower diversity for fads gene alleles. additionally, the fads alleles found in people whose family has lived inland for generation are almost all gene alleles which produce fads proteins with a high level of function and activity. how do anthropologists explain this?

Suppose you are provided with an actively dividing culture of e. coli bacteria to which radioactive thymine has been added. what would happen if a cell replicates once in the presence of this radioactive base?

The law of states that traits are passed from parents to offspring independently of one another.. true or false