I think the answer is enzyme
Ecology is the study of the relationship between living organisms and their environment. An ecologist is someone who studies those relationships. An ecosystem is a place, such as a rotting log, a forest, or even a schoolyard, where interactions between living and non-living things occur.
Some molecules are too big they cannot diffuse through the membrane, for example starch (glucose) molecules.
Answer:
Explanation:
This question appear wrong. Cells do not divide other cells as cells have the ability to undergo individual cell division as seen in cell cycle. However, there are some factors that could lead to increased cell division; factors such as cancer and viral infection can lead to increased division of certain cell types.
There is also a cell organelle present in mammalian cells that facilitates the division of a cell - this organelle is known as centriole. Centrioles do this by assisting in the separation of chromosomes during the mitotic phase of the cell cycle.
Can survive in muddy wallows, but must have permanent access to water in dry season because of complex skin physiology. (Will crack if exposed to air for long periods).
Water habitat must be deep enough for submersion with nearby grassland for foraging.