Which describes a grizzly bear’s habitat?
all the biotic factors in the ecosystem
all the abiotic factors in the ecosystem
the role of the bear in the ecosystem
the physical area where the bear lives
Interactions between organisms and their environment impact the organism’s overall population. Oahu Amakihi and Kauai Amakihi are two closely related species of Hawaiian honeycreepers. They have a common ancestor, eat small insects and nectar, and like to nest in koa trees. However, one species is found on the island of Oahu, and the other is found on the island of Kauai. Which concept shows the relationship between the Oahu Amakihi and the Kauai Amakihi?
adaptation principle
competitive exclusion principle
niche relationship
predator-prey relationship
A biologist counts the number of zebras in a population each year and notices an increase in the zebra population. Which describes the biologist’s actions?
experimentation
inference
observation
interacting
How would an increase in nest sites affect a population of pigeons?
The population would decrease.
The population would increase.
The population would remain almost the same.
The population would be reduced the next year.