Which of the following is a correct sequence of levels in life's hierarchy proceeding downward from an individual animal? a. brain, organ system, nerve cell, nervous tissueb. organ system, nervous tissue, brainc. organism, organ system, tissue, cell, organd. nervous system, brain, nervous tissue, nerve celle. organ system, tissue, molecule, cell

Mario performed an experiment to determine if photosynthesis was affected by the amount of light that a plant received. what could he have done to increase the validity of his data? reduce the number of plants. remove the 1 hour group. add a 0 hours control. measure the oxygen in liters

Ry was studying two populations of the same species of lizards. one population lived on an island and the other lived on the mainland. both populations were affected by a hurricane that hit the island and the mainland with equal force. a year later, henry was testing the gene frequency and saw a decrease in genetic variation in the island species, but not in the mainland species. which best describes a conclusion he might have reached? gene flow greatly affects small populations, but large populations can recover. genetic drift greatly affects small populations, but large populations can recover. gene flow greatly affects large populations, but small populations can recover. genetic drift greatly affects large populations, but small populations can recover.

Nucleic acid certain protein cell membranes certain carbohydrates