Aplant was placed in a dark cupboard for 24 hours. it was then exposed to sunlight for 6 hours. after this time, starch was found on its leaves. what characteristic of living things is observed?
a. excretion
b. nutrition
c. respiration
d. sensitivity

Aristotle classified animals according to their a. habitat and mating behavior c. mating behavior and relatedness b. habitat and physical differences d. physical differences and mating behavior

Grasses--> mice--> cats--> coyotes suppose 10,000 units of energy are available at the level of the grasses. what is the total number of energy units lost by the time energy reaches the coyote?

Where is having brightly colored feathers that attract mates most clearly an adaptation for a bird? a. a forest with dense vegetation b. a sandy beach beside an ocean c. a snowy tundra with little vegetation d. a swamp with many hawks that eat birds