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vladimir2022 [97]
3 years ago
12

What affects the seasons of Earth?

Biology
1 answer:
atroni [7]3 years ago
3 0

Answer:

The Short Answer:

Earth's tilted axis causes the seasons. Throughout the year, different parts of Earth receive the Sun's most direct rays. So, when the North Pole tilts toward the Sun, it's summer in the Northern Hemisphere. And when the South Pole tilts toward the Sun, it's winter in the Northern Hemisphere.

Explanation:

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10. Write the 2 Hardy-Weinberg equations. Use the equation to calculate the percentage of carriers of cystic fibrosis (a recessi
Firlakuza [10]

Using the Hardy-Weinberg equations, the percentage of carriers of cystic fibrosis is 8.19%.

<h3>What are the Hardy-Weinberg equations?</h3>

The Hardy-Weinberg equations describe the relationship between alleles in a population that is fairly constant.

The Hardy-Weinberg equations are given below as;

p^{2} + 2pq + q^{2} = 1 \\p + q = 1

q^{2} = 0.009\\q = 0.09\\p = 1 - 0.09\\p = 0.91 Hardy-Weinberg equations

Percentage of carriers = 2pq

Percentage of carriers = 2 * 0.09 * 0.91 * 100 = 8.19%

Therefore, the percentage of carriers of cystic fibrosis is 8.19%.

Learn more about Hardy-Weinberg equations at: brainly.com/question/16039271

#SPJ11

3 0
2 years ago
3. Name two structural differences you can see between the fungi on slides<br>​
Dmitry [639]

Answer:

A fungal cell is an eukaryote with all intracellular, membrane bound organelles. A bacterial cell is basically a prokaryote with a nucleoid. The cell wall composition also varies. It is a lipopolysaccharide layer called peptidoglycan layer in bacteria whereas cell wall of a fungal cell contains complex polysaccharides called chitin and glucans. Bacteria are either autotrophic or heterotrophic whereas fungi are strictly heterotrophic. Bacteria reproduces asexually by binary fission whereas fungi can reproduce either by sexual or by asexual method. Dormant form of fungal cell are called conidiospore or basidiospore or zoospore or ascospore based on their location in hyphae and type of reproduction. In bacteria, dormant forms are called endospores.

8 0
3 years ago
Bear pigmentation is subject to epistasis of the B alleles by the d alleles. B (black) is dominant over b (brown). D is dominant
White raven [17]

Answer:

9/16 black, 3/16 brown, 4/16 white

Explanation:

             BD         Bd          bD         bd

BD     BBDD      BBDd     BbDD     BbDd

Bd      BBDd      BBdd     BbDd      Bbdd

bD      BbDD     BbDd      bbDD     bbDd

bd       BbDd    Bbdd       bbDd     bbdd

A punnet square can be described as a diagram which is made to predict the genotype as well as the phenotypes of the offsprings of a cross.

To study the epistatis nature of the pigmentation in bear, a punnet square was made and the results of the punnet square are shown above.

The results of the punnet square show that the cross between two bears will have the chances of producing 9/16 black bears, 3/16 brown bears and 4/16 white bears.

4 0
3 years ago
Someone please helppp!
Sauron [17]

Answer:

D) the presence or absence of a Nucleus

Explanation:

A Nucleus is present in a Eukaryotic cell. A Nucleotide is present in a Procaryotic cell. If there is a nucleus present, it is a Eukaryotic cell

3 0
3 years ago
Complete the T-chart by categorizing each statement as something that would most likely be relevant to gene flow,genetic drift o
Anna35 [415]
Genetic drift 
Both 
Genetic drift 
Gene flow 
geneflow
5 0
3 years ago
Read 2 more answers
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