Because the soil didn't have the same nutrients it has now due to lack of decomposition of other plants and animals.
Answer:
Means to increase drag and prevent sinking is the correct answer.
Explanation:
Plankton avoid sinking by increasing their surface area and decreasing their density. Spines slow down sinking by adding surface area without increasing density. Defense against predation would be to sing below. Not the opposite.
Answer:
He/She can have brainliest!
Explanation:
Answer:
D
Explanation:
Homologues separate to opposite ends of the cell. Sister chromatids stay together. Telophase I: Newly forming cells are haploid, n = 2.