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maksim [4K]
2 years ago
7

How are respiratory illnesses primarily spread?

Biology
2 answers:
IgorC [24]2 years ago
5 0

Answer:

How are respiratory illnesses primarily spread "by droplets that comes from coughing and sneezing".

Explanation:

Hope you have a wonderful Merry Christmas and Happy New Years .

ipn [44]2 years ago
4 0

Answer:

coughing and sneezing

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Do you think genetically modified foods are beneficial or harm full to individuals, society, and the environment
kodGreya [7K]

Genetically modified can be stated as the  foods  which are derived from  whose genetic material (DNA) has been modified in a way that does not occur naturally

<u>Explanation:</u>

<u>pros:</u>

  • It takes less land for cultivation and it produces more food
  • It can conserve energy soil and water resources
  • It can save plants from extinction
  • It will use less water
  • less use of pesticides

<u>cons:</u>

  • Increased rate of allergic reaction
  • It can spoil or pollute the others fields and stuffs
  • It creates super weeds ans super bugs
  • Less nutritious
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6 0
3 years ago
What is natural selections affect on allele frequencies
enot [183]

Answer:

Natural selection also affects allele frequency. If an allele confers a phenotype that enables an individual to better survive or have more offspring, the frequency of that allele will increase.

Explanation:

that's it

8 0
3 years ago
What are the most likely percentages for offspring of two red/white-feathers parents?
weeeeeb [17]

Answer:

The question lacks options, the options are:

parents?

A.100% red/white-feather chickens.

B.50% white-feather chickens and 50% red/white-feather chickens.

C.33% white-feather chickens, 33% red-feather chickens, and 33% red/white-feather chickens.

D.25% white-feather chickens, 25% red-feather chickens, and 50% red/white-feather chickens

The Correct answer is D

Explanation:

According to the question, the hybrid chicken has a mixture of red and white feather phenotypes expressed at the same time. This tells us that the red and white alleles are CODOMINANT in the chicken i.e. none is dominant or recessive over the other.

Let's assume that (R) allele is the red feather colour while (r) allele is for white feather colour. Therefore, the red/white feathered chicken will have a Rr genotype. In a cross between two red/white feathered chicken (Rr), the following offsprings will be produced RR, Rr, Rr and rr

RR- Homozygous red feather d chicken (1/4 × 100=25%)

Rr- Hybrid Red/White feathered chicken (2/4 × 100=50%)

rr- Homozygous white feathered chicken (1/4 × 100=25%)

8 0
2 years ago
"Dinosaurs went extinct 65 million years ago." This statement is an example of _____.
VARVARA [1.3K]
Absolute time is the answer

3 0
3 years ago
What are stem cells? Where are they found?
Debora [2.8K]
Following the treatment, the Fetal Stem Cells will travel throughout the body, detecting damaged cells and tissue and attempts to restore them. The Fetal Stem Cells can also stimulate existing normal cells and tissues to operate at a higher level of function, boosting the body’s own repair mechanisms to aid in the healing process. These highly adaptive cells then remain in the body, continually locating and repairing any damage they encounter.
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3 years ago
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