To solve the question we proceed as follows;
time=distance/speed
distance between the monkeys is 2km=2000m
But the speed of sound= 330 m/s
Therefore the time taken for a howler monkey to get to the other will be:
time=2000/330
=6.1 seconds
The answer is 6.1 seconds
The correct option is D.
Enzymes are biological catalysts that speed up the rate of biochemical reactions in living cells. Most enzymes are made up of proteins. There are different types of enzymes and each perform specific functions under specified conditions.
Carbohydrates are a very important source of glucose (sugar).
The monomers of carbohydrates are called monosaccharides.
Lipids are also known as fats and oils.
The two building blocks of lipids are one glycerol molecule and one fatty acid.
The three functions of lipids are to make hormones, enzymes, and antibodies. They are long-term energy storage. They are chemical messengers that aide enzymes when enzymes fasten chemical reactions.
How does molecular size affect to the permeability
of the membrane to that molecules?
So you will try to find out how many
molecules of each kind pass through the membrane per time unit. If molecules
pass faster, it’s highly permeable to that material. Some molecules may not
pass at all, so then it’s not permeable to that material. Then you can put the materials
in order from the lowest to the highest permeability. You can also try to find
a mathematical formula that shows how permeability increases or decreases as size
increases (usually it decreases). Exel is usually helpful to find that formula:
you can make a plot and see if it is linear, exponential, potential, etc. There
are other softwares with a larger variety of graph options tan Excel.
Answer:
The options
a. New combinations of genes yielding genotypes of greater fitness
b. Few heterozygotes because of underdominance
c. Frequency-dependent selection, leading to fluctuations in fitness
d. Heterozygotes with greater fitness, owing to overdominance
e. A random assortment of genotypes because of genetic drift
The CORRECT ANSWER IS b.
b. Few heterozygotes because of under dominance
Explanation:
In genetics, underdominance (at times called "negative overdominance") is the opposite of overdominance.
It is the selection against the heterozygote, that leads to disruptive selection and divergent genotypes. It occurs in cases of inferior and reduced fitness (As in our case study, it is the different chromosomal fusions and inversions)
of the heterozygotic genotype to the dominant or recessive homozygotic genotype. It is unstable as it causes fixation of either allele.
Another example is the African butterfly species Pseudacraea eurytus, which makes use of Batesian mimicry to avoid predation. This species carries two alleles that gives a coloration that is alike to a different local butterfly species that is harmful to its predator. The butterflies who are heterozygous for this trait are observed to be intermediate in coloration and thus encounter an higher risk of predation and a decrease in the total fitness.