Answer: They compare the number of mutations to determine how long ago species separated and evolved.
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Answer: option A - threat, after habitat loss, to native species of plants and animals and to the maintenance of biologically diverse ecosystems
Explanation:
Invasive species refers to organisms that appears at a particular habitat that has just undergone an environmental unfavorable condition.
These INVASIVE SPECIES poses THREAT to the native organisms, because they usually possess:
better resistance to disease,
higher reproductive rate, etc.
So, even when native organisms migrate or dies, Invasive species REMAINS. As a result, they threaten the maintenance of a biologically diverse ecosystem
Answer: B.
Explanation: Cytokinesis is the last stage of mitosis. In cytokinesis, the cytoplasm and the membranes divide to create two separate cells.
You can remember this because both cytokinesis and cytoplasm start with "cyto".
Organisms with hard parts such as a shell,or bones are much more likely to become fossilized than animals with soft parts like a worms.
