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Afina-wow [57]
3 years ago
5

3 problems that occur when coal is used

Biology
1 answer:
lorasvet [3.4K]3 years ago
3 0
1. It polutes the air 
2. it could start wild fires 
3. its bad for animals
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Who do the animals in an ecosystem mainly acquire the sun' s energy
Marina CMI [18]
Animals likes the sun's energy. The sun supplies energy to plants to help them grow for animals. Animals eat the plants to get the energy they need.

Hope this helps!! ;))
Have a grat day!! <3
6 0
3 years ago
A population is made up of individuals where 77 have the A1A1 genotype, 65 have the A1A2 genotype, and 123 have the A2A2 genotyp
lana [24]

Answer:

Frequency of allele A1- 0.41

Explanation:

In Hardy weinberg equilibrium,

P refers to the dominant allele

q refers to the recessive allele

The allele frequency will be p+q=1

The genotypic frequency is- P²+q²+2pq=1

P²= genotype of dominant trait ( A1A1)- 77

2pq= genotype of heterozygotes (2pq)- 65

q²= genotype of recessive trait (A2A2)-  123

Total number of offsprings= 77+  65+ 123

                                            = 265

Now to calculate allele frequency of A1=

\dfrac{\text{number of A1A1 offspring}}{ \text{total number of offspring}}+\dfrac{1}{2}(\dfrac{\text{number of A1A2 offspring}}{\text{total number of offspring}})

= 77/265 + 1/2( 65//265)

=  0.290+ 0.122

= 0.413

Thus, 0.41 is correct.

3 0
3 years ago
Proteoglycans are a group of macromolecules formed from: a. proteins and glycosaminoglycans. b. proteases and glycosaminoglycans
Marianna [84]

Answer:

Proteins and polysaccharides.

Explanation:

Proteoglycans are heavily glycosylated proteins. These proteoglycans are present in the extracellular matrix of the animal cells and acts as a lubricant for the cells.

Proteoglycans are proteins that are covalently bonded with muco polysaccharidse. Proteoglycans are formed by the bonding between proteins and carbohydrates ( polysaccharides). Proteoglycans can combine with collagen to form cartilage and may affect the stability of a protein.

Thus, the correct answer is option (E).

3 0
3 years ago
Organisms with radial symmetry would likely _________________________________.
Illusion [34]
Be sessile (move from place to place very slowly, or not move at all)
5 0
3 years ago
Joanne is going out to her car after taking a night class, and just as she is about to open the car door, a man appears who has
Tanzania [10]

Answer:

D

because hes doing it for attention

4 0
2 years ago
Read 2 more answers
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