Tyler wants to run an experiment to find out the impact of temperature on the behavior of worms. He places one dish of 5 worms in the sun, and one dish of 5 worms in the shade.
After 3 days he comes back to find that all worms are alive in the shaded dish, but that only
two are alive in the sun dish.
What is the dependent variable in Tyler's experiment?
O how many worms are alive after three days
O the number of worms in each dish
O whether the worms are in shade or sun
O type of worm, size of dish, contents of dish

Which statement best describes a keystone species? o a. it has littlelmenetic variation. it has an extremely high population. 0 b. 0 c. it remains unaffected by all environmental changes. od. it has a strong influence on the ecosystem. 0 e. it's the first species to populate a new ecosystem.

Apopulation of rabbits live in a local forest. some had a mutation for a large body and long legs. the graph below shows the number of both the mutant and the normal rabbits over 5 generations. which of the following statements is true for this scenario? question 7 options: the rabbits with the mutation were more successful with restricted food than the normal rabbits. both sets of rabbits were equally successful with the restricted food source. i the normal rabbits were more successful with restricted food than the rabbits with the mutation. the graph does not let us know which rabbit was more successful.

The eruption of a nearby volcano causes a prairie ecosystem to receive a lot less sunlight. which of these is most likely effect on the ecosystem?