In a human karyotype, there are 46 chromosomes (23 pairs). If we choose one pair, such as pair 11, what do the two chromosomes of the pair have in common?

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Which statements are true for invasive species? 1. they always stabilize an ecosystem. 2. they’re always successful in adjusting to a new habitat. 3. they often compete with the native species for resources. 4. they have the ability to displace the native species. 5. they’re always pests.

Ahands-free device may only be used if it can be activated or deactivated with a