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saveliy_v [14]
3 years ago
11

Why is runoff in rivers and the ocean such a serious problem?

Biology
2 answers:
scZoUnD [109]3 years ago
4 0

Answer:

Explanation:

The main danger resulting from ocean contamination from runoff is the pervasive impact upon the food chain. ... Rivers are ecosystems that many communities rely upon for food and drinking water. Contamination makes it dangerous to eat fish that contain PCBs, heavy metals, mercury or other chemicals.

musickatia [10]3 years ago
4 0

Answer:

The main danger resulting from ocean contamination from runoff is the pervasive impact upon the food chain. Chemical contaminants do not just poison or contaminate the flesh of fish and large sea creatures: but also smaller animals eaten by fish, and the plankton eaten by the smallest sea creatures.

Explanation:

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kykrilka [37]

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The hypothalamus is part of the nervous system and controls vegetative functions, such as hunger, thirst and body temperature. When you run a race, your body starts to lose fluids due to sweat. At that moment the nervous system (through the hypothalamus) trying to maintain homeostasis in your body signals that you are thirsty.

As already mentioned above, when you participate in a race you start to sweat. This is a reaction of the integumentary system, through the skin, releasing fluids to regulate your body temperature.

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3 years ago
What two things can happen to pyruvic acid? Explain both
dalvyx [7]

Explanation:

Pyruvic acid supplies energy to living cells through the citric acid cycle (also known as the Krebs cycle) when oxygen is present (aerobic respiration), and alternatively ferments to produce lactic acid when oxygen is lacking (fermentation).Hope it helps

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3 years ago
Describe the stretch shortening cycle (sac) <br> and explain how it relates to exercise
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6 0
2 years ago
Give ONE reason why cell B(white blood cells) may have more mitochondria than cell A(sperm cells)?
Alekssandra [29.7K]

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What property do the following elements have in common? Sulfur, iodine, magnesium
Luba_88 [7]

Answer:

Same Phase at room temp

Explanation:

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