7. Which of the following shows the correct order of stages in the primary succession ? A. bare soil, shrubs, hardwoods, pines
B. shrubs, mosses, pines, grasses
C. rock, grasses, hardwoods, shrubs
D. rock, lichen, mosses, grasses

2. What do scientists mean when they refer to a population?
A. all the organisms in an ecosystem
B. Different species that share similar traits
C. all the animals that acquire resources through similar methods
D. two or more of the same species

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Anybody who knows ap biology, can you friend or message me

Darrel conducted an experiment with the following procedure: fill two cups with ice water. place an uninflated balloon snuggly onto your left index finger. blow a little air into an identical balloon, and place it onto your right index finger. place both fingers into the cups of ice water. darrel noticed that his right finger felt warmer in the ice water than did his left finger. which of the following does the experiment show? a. air is a good radiator of heat. b. air is a good insulator of heat. c. air is a good conductor of heat. d. air is a good convector of heat.

Lymphatic vessels remove excess fluid from tissues. often after mammexront( the surgical procedure to remove of all or part of a breast) the lymphatic vessels draining the arm are damaged. explain a consequence of this damage. what can be done to reduce the symptoms?