jillian is a high school student who typically earns $275 every two weeks at her part-time job. she is responsible for paying her own cell phone bill, gas when she drives her mom’s car, and costs of going out with friends. she wants to set a low balance alert. what amount probably makes the most sense for jillian?

Summarize the work of famous environmental scientists of the past.

Panthers and leopards prey on deer in an ecosystem. for unknown reasons, the population of leopards increased drastically. what are the likely effects of this change on the species? 1. more food for panthers and more competition for leopards 2. less food and more competition for panthers 3. fewer deer and more competition for panthers 4. more food for deer and less competition for panthers and leopards 5. more food for leopards and less competition for panthers

Which scenario describes intraspecific, indirect competition? a. a peacock defends its territory against another peacock. b. lions and hyenas compete for the same prey animals. c. a male black bear eats fish in an area of a lake, so other black bears can’t. d. different species of birds fight over spilled popcorn on the ground.