Answer: Membrane transport proteins are specific and selective for the molecules they move, and they often use energy to catalyze passage. Also, these proteins transport some nutrients against the concentration gradient, which requires additional energy.
Explanation:
Where are the answer options and a picture of the problem?
Coal seams are far deep underground to be considered for opencast minings. These coal seams require underground mining. Since it is too deep underground, it can be used for mapping and correlation of sedimentary rocks or as a key bed.
Asexual reproduction produces offspring that are genetically identical to the parent.
Because asexual reproduction involves a single parent, the offspring will be exactly like that parent.
