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Alex787 [66]
3 years ago
8

Which of these is a case of selective breeding?

Biology
2 answers:
Nataliya [291]3 years ago
8 0

Answer:

C. To increase the production of milk in a herd of milk cows, the highest producing cows were chosen as the mothers.

Explanation:

Selective breeding is a process in which breeding animals are chosen by the human in order to produce a desired character organisms. This new organism is far better than their parents because it has good characteristics of both male and female organism. In these organisms, one good trait is present in male and one good trait is present in female but the offspring that is produced from it has both good traits. So that's why it is better than its parents.

vagabundo [1.1K]3 years ago
7 0

I really hope this helps. Can I get brainleist plz?

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Technology can have good and bad effects. What is a bad effect of spraying pesticides on crops with the use of airplanes?
Anastaziya [24]

The correct answer is option a, that is, It is sometimes sprayed too far from the crops.

The use of pesticides on crops may exhibit a significant threat to the environment, mainly in and nearby to water sources with sensitive ecosystems, sources area, public drinking water, residential areas, and recreational waters.  

Aircraft spray of pesticides takes place from a greater altitude than the ground-based equipment and on a major scale, both of these elements may enhance the threat of spray drift.  


6 0
3 years ago
Read 2 more answers
What part of the respiratory tract is considered the respiratory zone?
Lorico [155]

Answer:

D. Alveoli

Explanation:

Functionally, the respiratory system is separated into a conducting zone and respiratory zone:

Conducting zone consists of the nose, pharynx, larynx, trachea, bronchi, and bronchioles. These structures form a continuous passageway for air to move in and out of the lungs.

Respiratory zone is found deep inside the lungs and is made up of the respiratory bronchioles, alveolar ducts, and alveoli. These thin-walled structures allow inhaled oxygen (O2) to diffuse into the lung capillaries in exchange for carbon dioxide (CO2).

The respiratory zone begins where the terminal bronchioles join a respiratory bronchiole, the smallest type of bronchiole, which then leads to an alveolar duct, opening into a cluster of alveoli.

8 0
3 years ago
During sexual reproduction, the offspring inherit their traits from A the father В. the mother C. both parents D. themselves​
vazorg [7]

Answer:

C. Both parents

Explanation:

I am not going to explain in full detail but basically the offspring needs something from the mom and the dad to live

8 0
3 years ago
In a population of rabbits, there are 496 black rabbits and 27 white rabbits. Fur color is determined by a pair of alleles where
Troyanec [42]

Answer:

0.96

Explanation:

It is given that

B is the dominant allele which represents the black color

and b is the recessive allele which represents the white fur.

B being dominant will result into black color fur for genotype "Bb"

Given -

Frequency of black fur allele (p) is 0.8

As per Hardy Weinberg's  first law of equilibrium

p + q = 1\\

Substituting the value of p in above equation, we get -

q = 1-p\\q = 1-0.8\\q= 0.2

q represents the frequency for white fur allele

Frequency of white fur phenotype is

q^2\\= 0.2^2\\= 0.04

Frequency of homozygous black fur phenotype (BB) is

p^2\\= 0.8^2\\= 0.64

As per Hardy Weinberg's second law of equilibrium -

p^2 + q^2 + 2pq = 1\\0.64 + 0.04 + 2pq = 1\\2pq = 1 - 0.68\\2pq = 0.32\\

Combined frequency of homozygous and heterozygous black fur phenotype is

0.64 + 0.32\\= 0.96

5 0
3 years ago
Explain how just a change of one amino acid has such an effect in the body
vekshin1
<span>Well, one is hydrophobic and one is hydrophilic so that causes a big effect in the way that the amino acids are grouped together or spread out</span>
4 0
3 years ago
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