Name one trophic level that contains autotrophs and one trophic level that contains heterotrophs.

Asnail, elodea (aquatic plant), or both were added to the tubes and they were stoppered. tubes were placed under a grow light for 24 hours and the results recorded. the test tubes were then covered for 24 hours to produce a dark environment and the results recorded. which statement best explains the change in test tube d from the light setup to the dark setup.

Human genes only differ by less than percent. a. 1 b. 6 c. 11 d. 16

When proteins are being produced by a cell, scientist say that the genes are question 2 options: activated turned off replicated deactivated