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Flura [38]
3 years ago
14

A ______ is a circular band of muscles designed to prevent movement into or out of a body cavity or organ. Multiple choice quest

ion.
Biology
1 answer:
grandymaker [24]3 years ago
8 0

Answer:

sphincter

Explanation:

circular muscle that normally maintains constriction of a natural body passage or orifice and which relaxes as required by normal physiological functioning.

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Why would scientists conduct investigations on a newly discovered alternative fuel?
klio [65]

Answer:

why would scientists conduct investigations on a newly discovered alternative fuel?

to confirm that the alternative fuel is cleaner than fuels currently used​

Explanation:

As an alternative fuel, it must be validated whether it is better than the one currently in use

7 0
2 years ago
The amount of a crop that a farmer can harvest per acre is referred to as crop yield. Farmers have been able to increase their c
Setler [38]
<span> One reason farmers often choose GM crops over non-GM crops is because GM crops are able to produce more yield. When farmers use GM crops, there are many benefits that they could gain. It has been proven that GM crops are more resistant to pests, and other harmful substances, which also reduce the costs for pesticides and crop-maintenance. Since GM crops are more resistant to harmful substances, more of them can be used by farmers.</span>
7 0
3 years ago
I really need help!!!!<br> plzz TUTUT
kifflom [539]

Answer:

give me brainlest

Explanation:

Causes

To understand diabetes, first you must understand how glucose is normally processed in the body.

How insulin works

Insulin is a hormone that comes from a gland situated behind and below the stomach (pancreas).

The pancreas secretes insulin into the bloodstream.

The insulin circulates, enabling sugar to enter your cells.

Insulin lowers the amount of sugar in your bloodstream.

As your blood sugar level drops, so does the secretion of insulin from your pancreas.

The role of glucose

Glucose — a sugar — is a source of energy for the cells that make up muscles and other tissues.

Glucose comes from two major sources: food and your liver.

Sugar is absorbed into the bloodstream, where it enters cells with the help of insulin.

Your liver stores and makes glucose.

When your glucose levels are low, such as when you haven't eaten in a while, the liver breaks down stored glycogen into glucose to keep your glucose level within a normal range.

Causes of type 1 diabetes

The exact cause of type 1 diabetes is unknown. What is known is that your immune system — which normally fights harmful bacteria or viruses — attacks and destroys your insulin-producing cells in the pancreas. This leaves you with little or no insulin. Instead of being transported into your cells, sugar builds up in your bloodstream.

Type 1 is thought to be caused by a combination of genetic susceptibility and environmental factors, though exactly what those factors are is still unclear. Weight is not believed to be a factor in type 1 diabetes.

Causes of prediabetes and type 2 diabetes

In prediabetes — which can lead to type 2 diabetes — and in type 2 diabetes, your cells become resistant to the action of insulin, and your pancreas is unable to make enough insulin to overcome this resistance. Instead of moving into your cells where it's needed for energy, sugar builds up in your bloodstream.

Exactly why this happens is uncertain, although it's believed that genetic and environmental factors play a role in the development of type 2 diabetes too. Being overweight is strongly linked to the development of type 2 diabetes, but not everyone with type 2 is overweight.

Causes of gestational diabetes

During pregnancy, the placenta produces hormones to sustain your pregnancy. These hormones make your cells more resistant to insulin.

Normally, your pancreas responds by producing enough extra insulin to overcome this resistance. But sometimes your pancreas can't keep up. When this happens, too little glucose gets into your cells and too much stays in your blood, resulting in gestational diabetes.

More Information

Diabetes care at Mayo Clinic

Diabetes and depression: Coping with the two conditions

How diabetes affects your blood sugar

Risk factors

Risk factors for diabetes depend on the type of diabetes.

8 0
2 years ago
All animals must be able to take in information and react to their environmental conditions. Describe the organs and organ syste
Artist 52 [7]

Answer:

Nervous system

Explanation:

The nervous system in humans work together to collect information about the external environment because they consist of the brain, spinal cords and neurons. They collect information from external environment and those information travels through neurons from sense organs like eyes, ears, skin e.t.c as a form of electrical impulses. When they get to the end of the neuron, a chemical called neurotransmitters are released which travels across the cells and send it to the brain, the brain then process it and interprete the signals and respond to it as stimulus.

5 0
3 years ago
Need help:)) will mark brainliest if right! i need help explaining too
allsm [11]

Answer:

a,b,c are correct

Hope it helps you

4 0
2 years ago
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