Answer: A
Explanation:
Carrying Capacity because it is showing how many ferns the rainforest can support.
Answer:
Sorry, you didnt add the question, I would have helped!
Explanation:
B Nature selection for traits the allow for increased rates of reproduction and survival over traits that don't, is correct.
A is also correct
Answer:
Electrons Can Donate - 0
Electrons Can Receive- 2
Valence - 2
Explanation:
The electronic configuration of oxygen is 
. Thus in the p-orbital there is deficiency of two electrons. Hence, it can receive/share electron but it cannot donate electrons. This makes oxygen as a good electron acceptor. Since there is a deficiency of two electrons in the outermost shell of oxygen, the valence of oxygen in thus -2
Elodea cells change when aquarium water was supplanted with a hypertonic arrangement is the point at which the cell layer isolated from the cell divider and moved towards the center of the cell. The cytoplasm and chloroplas±s moved towards the center of the cell. The cell shrank and progressed toward becoming plasmolyzed.
