Euglena are protists that move by means of flagella, and they contain cholorplasts and an eye spot or light receptor. they are capable of ingesting food by phagocyrosis, being simple organism, they can reporduce asexually. under what enviromental condition would we expect euflena to infest food rather than produce food via photosynthesis

Which conditions are necessary for natural selection to occur? select all of the answers that apply. a. inheritable adaptations vary among individuals. b. the population size is increasing. c. more individuals are born than can survive. d. fitness varies among individuals. e. the environment changes suddenly and drastically.

Based on the data in your tables, did the light-colored moths have a higher or lower survival rate after the industrial revolution?

Which best explains how a heat pump can heat a room? cold air from the house is moved through pipes, where it absorbs thermal energy. warm air from outside is pushed into the house to replace the cold air. combustion warms the air when chemical energy is transferred to thermal energy. fuel is used to move a piston, which pushes warm air into the house.