The stem of a plant grows_________from the pith. <u>outwards</u> or inwards
Answer: When there is an extreme disturbance in the ecosystem,
Explanation: it means a general destruction of it, thus experiencing a mass extinction. ... The animals and plants of the secondary succession enrich the soil, and set the basis for more complex ecosystem, so soon after larger plants and animals start to settle in.
Answer:
Abiotic is basically a non living factor so the answer is
D. Sunlight, temperature , conductivity, dissolved oxygen.
All other options contain one biotic or living factor like algae, star fish and crabs these aren't Abiotic.