Crossing over? That involves the random exchange of chromosomes.
Answer:
The correct answer is b. The oldest generally accepted fossils of large animals range in age from 565 to 550 million years old.
Explanation:
The oldest one of them all is the hematite tubes, that are dated about 3.77 billion to 4.2 billion years and it's from a yet unknown bacteria.
Answer:
Examine the leaves of a palm tree. Which statement most specifically describes a palm tree?
Palm trees are monocots.
Palm trees are angiosperms.
Palm trees are flowering plants.
Explanation:
Those three features best describes a palm tree, they are angiosperms because they produces seeds and flowers
Answer:
missing - biostatics
Explanation:
Longitudinal studies differ from one-off, or cross-sectional, studies. The main difference is that cross-sectional studies interview a fresh sample of people each time they are carried out, whereas longitudinal studies follow the same sample of people over time.
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