A) How might an extra severe drought during a particular year affect the Okavango ecosystem?

your body is trying to warm itself up. or more precisely, sensors in your skin send messages to your brain to generate heat to your body.

not necessarily. higher fitness requires the organism to be reproductive successful. for example, an organism at age 10 with 15 offspring is much more fit than an organism at age 15 with only 5 offspring.

b. climate change will cause an increase in biodiversity of all ecosystems.

hope this