Helpppp pleaseee :)

Biology

2 answers:

Diano4ka-milaya [45]3 years ago

7 0

The correct answer is animal waste and fertilizers

dybincka [34]3 years ago

5 0

Answer: A pond near a city park is found to be contaminated with both bacteria and excess nitrogen. The bacteria most likely came from animal waste,and the excess nitrogen likely came from fertilizers.

The bacteria will be most likely to come from animal waste as numerous bacteria lives in the intestine and stomach of these animals, which facilitate the digestion of food, these bacteria come along the animal feces after digestion. Also, there are bacteria which degrade the animal feces. Bacteria may also degrade and may be present on other animal wastes like left out skin, tissues, hair, fur. Nitrogen is the chief constituent of fertilizers. Nitrogen increases the fertility of soil and it can be a potent pollutant for a water body.

You might be interested in

When two hormones must be present to achieve full expression of an effect, that interaction is called ______________.

Vinvika [58]

Answer:

Synergism

Explanation:

Synergism means cooperation, and is a term of Greek origin (synergy). Synergy is a work or effort to accomplish a certain very complex task, and to be able to succeed in the end. Synergy is the moment when the whole is greater than the sum of its parts.

In physiology, synergism occurs when the effect of two or more combined chemical agents is greater than the sum of individual effects. Concerning hormones, synergism happens when two hormones must be present for the full expression of an effect. That is, two hormones act for a certain purpose.

Example: FSH (follicle stimulating hormone) and estrogen cause oocyte maturation, but this only occurs if neither acts in isolation.

8 0

3 years ago

What means acid rain? What causes acid rain? What are the effects of acid rain?

AlexFokin [52]

Acid rain can be caused by factors and there chemicals in the air
Acid rain effects- getting into our under ground waters, the animals might get sick from the acid rain, fish might die, animal health, and human health when it gets in our drinking water
Acid rain-meaning that it has elevated levels of hydrogen ions. is a rain or any other form of precipitation that is unusually acidic.
Hope this helps have a nice day