B, osmosis is the movement of water across a semi-permeable membrane according to the gradient of concentration. The water moves to were the concentration of solute is higher, that way the solute concentration is equalized.
Answer:
A and D
Explanation:
Dolphins have a narrow, torpedo-shaped body to swim easily through water. Their strong, paddle-like flippers also aid in strong swimming.
However dolphins do not secrete gases or attach themselves to the bottom of the sea, so the answers are A and D.
Good luck ^^
Answer:
B. (i) yes; (ii)-yes
Explanation:
If a population is at Hardy-Weinberg equilibrium, allele frequencies can be calculated from the given values of genotype frequencies and genotype frequencies can be calculated if the allele frequencies are given.
For a population in Hardy-Weinberg equilibrium; p+q=1
Here, p= frequency of recessive allele and q = frequency of dominant allele.
And p2 + 2pq + q2 = 1
p2= Frequency of homozygous dominant genotype
2pq = Frequency of heterozygous dominant genotype
q2 = Frequency of homozygous recessive genotype
For example, if frequency of homozygous recessive genotype (q2) is 0.40, then, the frequency of recessive allele (q) will be = square root of 0.40= 0.63
Likewise, frequency of dominant allele (p) in this population will be = 1-q = 1-0.63 = 0.37
Hello there!
The two holes in your nose are called "Nostrils"
Hope this helps! ;)
~Lexa
