First of all, it makes algae grow, because pesticides and stuff provide too many nutrients. Algae needs a lot of oxygen and so the fish begin to die off because the algae is taking all the oxygen out of the lake. Next, it causes biodiversity to drop, meaning that species are beginning to get less varied. Water pollution harms the lakes and is a concern because the effects of it on species and the water will stay.
Answer:
Melting of glaciers which leads to flood
Explanation:
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Answer:
D) Communities
Explanation:
Communities are groups of biotic living beings in an ecosystem such as animals, plants , bacteria, etc whereas populations are just groups of creatures of the same species. Multiple different populations make up a community.
A heart attack happens when a coronary artery becomes out of no where in a instant blocked and it stops the flow of blood to the heart muscle and starts to damage it.
In the nervous system, electrical impulses serve as messengers.
Nearly all of your actions, thoughts, words, and emotions are controlled by your nervous system. It manages complex functions like memory, thought, and movement. Additionally, it is vital for bodily functions like breathing, blushing, and blinking that occur automatically.
The endocrine system's chemical messengers, hormones, use the bloodstream to carry messages to and from cells.
A intricate system of glands and organs makes up the endocrine system. Your body's metabolism, metabolic rate, reproduction, growth and development, and response to injury, stress, and mood are all regulated and coordinated by hormones. The endocrine system is made up of the following components: Hypothalamus.
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