All categories

3 years ago

What is the environmental impart of coal? Please use 3+ sentences. Extra Points!

1 answer:

7 0

Coal can disrupt life and air. Coal is a non reusable resource and it can make life harder. Coal can heat homes and power trains.

You might be interested in

Consider a locus with two alleles - B and b. B is dominant, while b is recessive. There is no mutation. B has a selective advant

Marat540 [252]

Answer:

0.09

Explanation:

<h3><u>Before selection</u></h3>

Total number in population = 1000

Genotype frequencies

Genotype frequency of BB = 500/1000 = 0.5

Genotype frequency of Bb = 250/1000 = 0.25

Genotype frequency of bb = 250/1000 = 0.25

Allele frequencies

Allele frequency of B = BB genotype frequency + half of the Bb genotype frequency = 0.5 + (0.25/2) = 0.625

Allele frequency of b = bb genotype frequency + half of the Bb genotype frequency = 0.25 + (0.25/2) = 0.375

<h3><u>After selection</u></h3>

We are told that after selection, the genotype frequency of bb is changed as they become 50% less fit. This means the frequency of bb individuals changes from 250 to 125 individuals (50% reduction).

Now the total number of individuals is 500 + 125 + 250 = 875.

Genotype frequencies

Genotype frequency of BB = 500/875 = 0.57

Genotype frequency of Bb = 250/875 = 0.29

Genotype frequency of bb = 125/875 = 0.14

Allele frequencies

Allele frequency of B = BB genotype frequency + half of the Bb genotype frequency = 0.57 + (0.29/2) = 0.715

Allele frequency of b = bb genotype frequency + half of the Bb genotype frequency = 0.14 + (0.29/2) = 0.285

<h3><u>Change in frequency of B after 1 generation</u></h3>

0.715 - 0.625 = 0.09

7 0

3 years ago

Which best contrasts a bacterium and a virus?

butalik [34]

Answer:

i think it is C

Explanation:

8 0

3 years ago

Compare the processes of aerobic and anaerobic respiration. What are the reactants and products of each process? How much ATP do

Aleonysh [2.5K]

Answer:

Aerobic respiration saves a lot of energy compared to anaerobic respiration. Aerobic activities can generate up to 38 ATP per gram of glucose consumed. Anaerobic reactions only produce 2 ATP per gram of glucose.

8 0

3 years ago

Dna may be altered as a result of ________ events that occur normally in cells

adoni [48]

Transcriptional events possibly ?

6 0

3 years ago

To keep the humeral head centered within the glenoidal cavity the rotator cuff muscles must be __________. Select to launch anim

enyata [817]

Answer:

<h2> located in the same plane</h2>

Explanation:

Such types of muscles and tendons that play an important role in the stabilization of the shoulder are called rotator cuff muscle.
These muscles are responsible for the different types of motion and simply called a different range of motion.
Muscles like scapulohumeral muscles, infraspinatus muscle and some others are grouped as rotator muscle.
These muscles are involved in the movement of the shoulder and also stabilize the joints of the shoulder for the movement and during the movement.
When the humeral head is centered within the cavity of the glenoidal then the rotator cuff muscle should be on the same plane.

8 0

4 years ago