The movement of substances to regions of lower concentration is called?

What will be an ideal response?


Diffusion

Biology & Microbiology

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Which of the following is an example of convergent evolution?

A. the blue whale and a chimpanzee both being mammals B. two different populations of humans having different amounts of pigmentation C. the African population possessing the sickle trait in areas where malaria is prevalent D. Europeans and Africans developing lactose tolerance separately after the domestication of cattle E. the African population possessing the sickle trait and the mutation in the G6PD gene in areas where malaria is prevalent

Biology & Microbiology

Which of the following assembles a short RNA chain as the first nucleotides in a new DNA strand?

a. topoisomerase b. primase c. DNA polymerase d. helicase e. DNA ligase

Biology & Microbiology

Which is not a lipid?

A. a sterol B. a phospholipid C. a triglyceride D. a starch E. a wax

Biology & Microbiology

The number of individuals occupying a unit of habitat (volume or area) is the ___________.

A. distribution B. carrying capacity C. population density D. population size E. birth rate

Biology & Microbiology