1. How do ecosystems function? (Select all that apply.)
Biotic factors depend on each other for food, shelter, protection, and reproduction.
Abiotic factors affect the type and number of organisms that live in a particular ecosystem.
Biotic factors are dependent on abiotic factors for food and protection.
Abiotic factors depend on biotic factors for food, shelter, protection, and reproduction.

Which sentence best contrasts two things? a. air travel, like bus travel, is a fun way to get from one place to another. b. air travel is a fun and relatively easy way to get from place to place. c. both bus travel and air travel require substantial planning. d. air travel is much more expensive than bus travel.

Describe your passion for sports (100 words or less). required

Read the following excerpt from the play a raisin in the sun by lorraine hansberry: johnson (this usa woman who decided long ago to be enthusiastic about everything in life and she is inclined to wave her wrist vigorously at the heigh of her exclamatory comments.): hello there, yourself! h’you this evening, ruth? which assumption about johnson is most likely true based on the stage direction? a. her enthusiasm is used to mask her fear of public places