What occurs when rock and soil slide rapidly down a steep slope?
1. creep
2. landslide
3. slump
4. mudflow

All individuals have two alleles for a given trait. according to mendel's these alleles are passed down one each from both mother and father.

The function of the ciliary escalator is to

Which of the following is an advantage of using embryonic stem cells in medical research? a. the use of embryonic stem cells is much less expensive than the use of adult stem cells. o b. no living tissue is damaged when scientists use embryonic stem cells. o c. embryonic stem cells are able to differentiate into a wider range of cells than adult stem cells. d. there is no controversy surrounding the use of embryonic stem cells.