They produce saliva which is essential for the breaking down of carbohydrates.
Hypertonic, the extra water causes the cells to swell.
Answer:
False
Explanation:
The <u>carrying capacity</u> of an ecosystem is the total number of creatures that it can sustain.
Doctors try to remove tumors from the body to prevent it from spreading and affecting other parts of the body.
Answer: The frequency of brown beetles is 0.32.
Explanation: The frequency of A1 allele is 0.8. As p+q=1, or the sum of dominant and recessive frequencies equals 1 or 100%:
1 - 0.8 = 0.2
In Hardy-Weinberg principle,

2pq represents the frequency of heterozygote individuals, so:
genotype A1A2 = 2*0.8*0.2 = 0.32.
Thus, the frequency of brown beetles (A1A2) in the population is 0.32.