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allochka39001 [22]
4 years ago
13

A scientist studying wolves near Kirkland Lake

Biology
1 answer:
olga nikolaevna [1]4 years ago
3 0
A decrease in the population of bears
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A child pours water down a hill. What energy transformations occur in the water?
Alja [10]

Answer:

This water has potential energy

Explanation:

6 0
3 years ago
Recently, Jonesville County inhabitants have been embroiled in a controversy regarding the use of pesticides on crops grown in t
LenKa [72]

Answer:

Charles Ehler: incorrect.

Wendell Mullison: correct.

Robert Rodriguez: correct.

Judy Johnson:correct.

Explanation:

-Charles Ehler´s statement is incorrect because in order for a chemical company launch a new product it must pass several tests, that´s why products lasts years in proves, there are several tests such as the environment test that proves that the product doesn´t affect other species, or the human safety that makes sure the product doesn´t affect human health.Wendell Mulison´s statement proves to be correct with this as well.

-Robert Rodriguez´s statement  is correct because even though there are several tests that take care human healt there are just a few based on the damage pesticides produce to the land where are used.

-Judy Johnson´s statement is correct because science has proved that the resistant of parasites as being increasing with the products tat are used to combat them. Bacterias are an example of it, many drugs used against bacterias are now useless for some people because of the resistantthey have developed.

-One specie that can be taken as a pesticide can be the ground snail, that affects some plants and also may contain a parasite aclled "Hepatic fasciola" that affects sheeps and goats of farmers.

-One viable method to control pesticides is the sue of other species to control them, this specie has to be adequate to the land, for example, if a farmer wants to get rid of the ground snails because of the parasite and  the damage they do to their platings, they can introduce ducks to the farm that eat them without damaging the land with any kind of chemical product.

6 0
3 years ago
Use the normal ecg trace below to determine how many seconds the trace represents as well as the heart rate.
mezya [45]
Attached is the image of the concerned ECG reading.

In reading the ECG, first you read the heart rate. To read the heart rate, you must count for the number of small boxes in between QRS complexes, specifically R-R intervals. These number of small boxes will then be used to divide 1500. In this example, there are 20 small boxes between R-R intervals. 1500 divided by 20 is 75, so the heart rate of this ECG reading is 75 beats per minute. 

<em>Another way, albeit less accurate, is to count the big squares between R-R intervals and instead of dividing it by 1500, you divide it by 300.</em>

3 0
3 years ago
Plant parts used for reproduction?
lubasha [3.4K]

The pollen grains contain sperm which will fertilize the egg and create a seed to sprout the next generation of plants. The main male part is the stamen. It is divided into two parts: the anther and the filament. The anther produces the pollen grains that contain the sperm needed for fertilization.


4 0
3 years ago
Living things that use energy
Whitepunk [10]

<u>living things that use energy</u><u>:</u>

<em>~</em><em>Producers, such as plants and algae, use energy from sunlight to make food energy by combining carbon dioxide and water to form organic matter</em>

Hope this helped you- have a good day bro cya)

7 0
3 years ago
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