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GenaCL600 [577]
3 years ago
13

Which of the following statements about idea models is not true?

Biology
2 answers:
sergey [27]3 years ago
6 0
Out of the choices given, the statement about idea models that isn't true is that idea models are typically used to predict natural disasters. The correct answer is B. 
Doss [256]3 years ago
4 0

The correct option is B.

Idea models refers to those models that are used to show the relationships that exist between abstract concepts. The model is used basically to bring about desired changes and it normally used in business and other sectors to visualize how an idea might work out. Idea models are usually presented in form of graphs and equations, the variables in these graphs and equations show the relationships between the variables that are been considered.

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3 years ago
How do the hormones of the pancreas maintain homeostasis?
faust18 [17]
Hormones glucagon and insulin are produced in the alpha and beta cells respectively in the Islet of Langerhan in the pancreas. They are involved in the negative feedback system of blood glucose regulation in homeostasis.

GLUCAGON: when there is a low blood glucose concentration, the pancreas detect this and alpha cells produce and release glucagon. Glucagon causes the cells of the body to absorb less glucose from the blood. It also inhibits the process of converting glucose into glycogen (glycogenesis) and cause gluconeogenesis (process of converting amino acids/proteins and lipids/fats into glucose) and glycogenolysis (conversion of glycogen to glucose). Finally, glucagon decreases the rate of respiration so less glucose is required.

INSULIN: when blood glucose is high, insulin is released. Insulin binds with cell surface receptors of cells and activates the enzymes attached to the receptor. The enzymes cause a conformational change in the structural proteins that surround glucose transport protein containing vesicles, causing them to move out of the way so the vesicles migrate up to the cell membrane and glucose transport proteins can fuse with it. Thus, more glucose can be taken in by cells. Insulin also cause glycogenesis (converting glucose into glycogen) and inhibits gluconeogenesis and glycogenolysis.

Basically insulin decreases blood glucose concentration (eg. after eating) and glucagon increases it (eg. skipping breakfast in the morning)
6 0
3 years ago
PLEASE HELP
Margaret [11]

Answer:

World Wildlife Federation (WWF)

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5 0
2 years ago
An abnormal condition in which the placenta separates from the uterine wall before the birth of the fetus.
almond37 [142]
The abnormal condition in which a placenta separates from the uterine wall before the birth of the fetus is known as:

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I hope this helps! I'm happy to answer any other questions you might have :)
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3 years ago
Read 2 more answers
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