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Furkat [3]
3 years ago
13

Describe how waves behave when they interact with a barrier or boundary.

Biology
1 answer:
S_A_V [24]3 years ago
7 0

Answer:

Reflection involves a change in direction of waves when they bounce off a barrier; refraction of waves involves a change in the direction of waves as they pass from one medium to another; and diffraction involves a change in direction of waves as they pass through an opening or around a barrier in their path.

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In the Hardy-Weinberg equation shown below, p is the frequency of the dominat allele, and q is the recessive allele
Lemur [1.5K]

Answer:

Option D- frequency of the heterozygous qenotype

Explanation:

In the Hardy-Weinberg equilibrium , 2pq stands for the genotype frequency of heterozygotes (Aa) in a population at the state of equilibrium. dominant homozygotes (AA) is represented by the p-square and q- square represents the recessive homozygotes (aa) frequency. p represents the allele frequency of A Allele and q stands for the allele frequency of the allele a. Summation of the terms gives an equal to 1(100%). The sum of all of these terms is always equal to due to the fact that the 3 frequencies in the equation are the available or possible allele combinations.

Hardy-Weinberg is relevant for it helps us in comparison of a population's actual genetic structure as time goes on along with the genetic structure we are to get if really population was in Hardy-Weinberg equilibrium state that is population was not evolving.

3 0
3 years ago
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in order for natural selection to take place, we must have a.one individual b.a cloned species c.the same traits d.variety in a
padilas [110]
Natural selection can only occur because of a variety in a population. Natural selection refers to environmental factors that affect a population and causes some of the population to have more surviving offspring than others. An example is a giraffe with a longer neck will be more likely to survive and reproduce (as it can gather more food from taller trees)

3 0
3 years ago
Almost all coal used today was produced during the Carboniferous period from dead animals in the swamps.
Ann [662]

Answer:

False

Explanation:

Almost all coal that is used today has its origins in the Carboniferous period. The Carboniferous period was a warm and wet one, with the majority of the land being swampy and covered with dense rainforests of ancient tree species. By the end of this period, the climate quickly changed, resulting int he collapse of the rainforests. As the trees were dying out, they were falling in the swamps, quickly being covered by the mud, so remaining largely preserved. Over time they got exposed to higher pressure and temperatures as they were getting deeper into the crust, eventually resulting in the formation of the coal.

7 0
3 years ago
An increase in temperature affects the reaction rate by decreasing the velocities of particles that collide in the reaction. inc
soldier1979 [14.2K]

Answer:

increasing the number of molecules that have sufficient kinetic energy to react.

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Using the pea plant offspring as a guideline, record the genotype and phenotype of each offspring whose alleles you labeled in q
zavuch27 [327]

Answer: your profile pic is very very hot

Explanation:

5 0
3 years ago
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