The loss of plants caused by a tornado can allow new species of plants to grow in the cleared area. Plants that survive can grow more abundantly then other species. This loss of vegetation could also lead to soil erosion.
Answer:
D. 48%
Explanation:
Using the Hardy-Weinberg equation;
p + q = 1
p² + 2pq + q² = 1
From the question,
64% of a remote mountain village can taste phenylthiocarbamide (PTC) = i.e p² = 0.64
and must, therefore, have at least one copy of the dominant PTC taster allele.
i.e 2pq
So. if p² + 2pq = 0.64
Then
p² + 2pq + q² = 1
0.64 + q² = 1
q² = 1 - 0.64
q² = 0.36
q = √0.36
q = 0.6
To find p; we have:
p + q = 1
p + 0.6 =1
p = 1 - 0.6
p = 0.4
SO for the percentage of the population that must be heterozygous for this trait (i.e 2pq)
we have:
= 2 × 0.6 × 0.4
= 0.48
= 48%
∴ the percentage of the population that must be heterozygous for this trait = 48%
When the dna ladder twists the way it normally does the shape of the molecule is called a double helix. The DNA is made of nucleotides consisting of a de-oxyribo sugar, a phosphate group and one of the four nitrogen base.
Adenine pairs with Thymine with 2 hydrogen bond and Guanine pairs with Cytosine with 3 hydrogen bond .This provided the clue the DNA molecule is a double helix , shaped like a twisted ladder.
When hunting it is safe to shoot in area called the zone of fire.This zone depend on various factors such as hunter shooting ability, the game been hunted, the hunting environment and the hunting strategy been used.The zone of fire of the hunters change in very step.
Answer: The left ventricle pumps blood to the entire body.
Explanation:
The heart is am important organ that beats and pumps oxygen and nutrient rich blood to all part of the body to sustain life.
It is located between the chest and lung.
The heart has four chambers which are the right and left auricle then the right and left ventricle.
The left ventricle is the strongest of all because it pumps blood to the entire body.