Answer:
Explanation:
We recognize that total occurrence equals new cases of disease over time divided by the number of people at risk at the onset.
Mathematically:
Given that:
Number of the population at risk = 1000 individuals
New cases during Jan 1 - Dec 31 = 60 because;
At 20 occurred on June 30 & 40 on Sept. 30) & no new cases were identified after that:
∴
Exposure to ionizing radiation, exposure to chemicals, or infection by viruses. A mutation is a change in a DNA sequence and can occur during cell devision.
Answer:
carry messages to and from the brain and spinal cord and the rest of the body
OR
it is a bundle of fibers that receives and sends message between the body and the brain
Answer:
<em>mutualism, parasitism, adaptive radiation).</em>
Explanation:
Some species of hummingbirds have different shapes of beaks that evolved to allow them to drink from certain flowers. the flower species have evolved to produce nectar that is tasty for the hummingbirds. this example is a type of (coevolution, convergent evolution, adaptive radiation). cuckoos lay eggs in the nests of other birds. the cuckoo lays eggs identical to the eggs of the host species, so the other bird takes care of it. this is an example of (mutualism, parasitism, adaptive radiation).
