A person exhales carbon dioxide and moisture. Which example of the characteristics of life is most similar?

A.
A gazelle runs away from a lioness.
B.
An algal cell has a defined boundary.
C.
A dog defecates when outdoors on a walk.
D.
A 12-year-old boy’s voice breaks.

1. variations in a population of moths allow for some of its members to be able to adapt to environmental changes. the better adapted of the moths will be able to survive the change and thus prevail as the “fittest” of the species. (a) describe three mechanisms in which variation can occur within a species population. (b) explain which mechanism or mechanisms would be responsible for the survival of a population of peppered moths better than white moths in an environment affected by industrial soot. justify your answer.

Q: a: in sexually reproducing animals, once fertilization of the egg takes place, the exists as a single cell until cell division begins

Individuals do not compete directly for resources, but are prey for the same predator