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Nana76 [90]
3 years ago
6

Suffering the impact of swarms of locusts, a farmer uses an airplane to spray an insecticide over 1,500 acres of his corn field.

This farmer is trying to address this pest problem by using
Select one:
A. an agricultural treatment.
B. integrated pest management.
C. a chemical treatment.
D. an ecological control.
Biology
1 answer:
Crazy boy [7]3 years ago
8 0

Answer:

C. a chemical treatment.

Explanation:

In this case we would be talking about a chemical treatment, since the application of an artificial compound is made, and it is not clarified that it was "ecofriendly".

On the other hand, the question clarifies that the farmer is suffering from the plague. This indicates that he is not preventing it (Integrated pest management), he is treating it.

Finally, it should not be considered as an agronomic treatment, since no real modifications are being made to the way the field is managed.

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If a 0. 2-ml blood sample with a paco2 of 40 mm hg diffuses across a membrane into the e2 electrode containing 0. 3 ml of soluti
kogti [31]

If a 0. 2-ml blood sample with a paco2 of 40 mm hg diffuses across a membrane into the e2 electrode containing 0. 3 ml of solution, the final paco2 in the blood sample will be less than 16 mm Hg.

What is paco2?

The partial pressure of carbon dioxide is specifically evaluates the carbon dioxide level in blood.

It is a determined by using  a popular test called arterial blood gases (ABG) test.

It also also evaluates the partial pressure of oxygen (PaO2), bicarbonate (HCO3), and pH level of blood.

This test is performed on patients of lung diseases, neuromuscular diseases and also useful for getting a clear picture of the body's metabolic and respiratory conditions.

Hence the answer is less than 16 mm Hg.

Learn more about paco2, here:

brainly.com/question/14630896

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6 0
1 year ago
Define SELECTIVE BREEDING in your own words
KIM [24]

Answer:

Selective breeding is when humans use animal breeding and plant breeding to create phenotypic characteristics by picking which animal or plant genders will reproduce together.

Explanation:

hope this helped!

4 0
3 years ago
Question 4
tatuchka [14]

Protein breakdown into amino acids is the statement that correctly explains the complex molecule.

Option (c);

<u>EXPLANATION:</u>  

Cells in our body carry put several chemical reactions which in turn keep us healthy. All these reactions are collectively called metabolism. With the breakdown of complex molecules, it releases a lot of energy into the body.Through this process, Proteins are broken down into amino acids.

Various enzymes, specifically pepsin and hydrochloric acid breaks proteins into individual amino acids. They on further broken into a-keto acids. These amino acids reduces body weight and improves energy in the human body.

5 0
3 years ago
What is the discriminat of the quadratic equation 3-4x=-6x^2
Vesnalui [34]

Answer:

-56

Explanation:

ax^2 + bx + c = 0 is the discriminant of the quadratic equation

3 - 4x= -6x^2

to

-6x^2 + 4x -3 = 0

We know that:

a = -6

b = 4

c = -3

Substitute in the formula of discriminant (b^2 - 4ac):

= 4^2 - 4 * (-6) * (-3)

= 16 - 4 * 18

= -56

5 0
3 years ago
Why may toxic bloom appear in some lakes but not other
Makovka662 [10]
Location? chemicals in the lakes? the species that live in or surrounding the lakes? hope this helps :)
8 0
3 years ago
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