Which variables define the ecological life history of a species?
A) the age at which reproduction begins, frequency of reproduction, and the number of offspring for each reproductive episode
B) the ratio of females to males, the length of the breeding season, and the number of offspring for each reproductive episode
C) the number of offspring produced over a lifetime by a breeding pair and the survivability of the offspring
D) timing breeding sessions with optimal environmental conditions and the number of offspring produced during each breeding session
E) the amount of parental care given after birth, the number of reproductive episodes per year, and the number of years females are capable of producing viable offspring
This solitary tree is an appropriate symbol for the tree of life
These species are all at risk of extinction.
A number of tree species can be interconnected by mycorrhizal fungi in the forests of British Columb
Dentition of a collared peccary, as illustrated in Knight's Sketches in Natural History
U.S. Life Expectancy by Year of Birth
Recent history of biochemistry shown by the introduction of new techniques. (part 1)