Answer:
Paramecia are single-celled protists that are naturally found in aquatic habitats ... Paramecium lives in fresh water. The excess water it takes in via osmosis is collected into two contractile vacuoles, one ... perform "avoidance reactions" by reversing the direction in which the cilia beat ... There was a problem.
Explanation:
Answer: <em> I and II (1 and 3)</em>
Explanation: The spiders could destroy the ecosystem of a region where it had not been presented, since insects or some mammals are defenseless against this species because they had never seen or interacted with it, it can hunt and reproduce to a great extent, becoming a problem, and by taking flowers from another region totally different from yours (in animal and plant life) can cause serious damage, since these flowers could bring dangerous insects even for humans, and for native species, ending with what can eat.
uwu
Hope I help you!
Answer:
rhe answer is that the rocks of that time are buried deeply under the soil.
The answer to your question is B
Natrual variations i think
