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anzhelika [568]
3 years ago
14

It is estimated that genetics account for about ___ percent of the inclination to begin smoking, and for about ___ percent of th

e ability to quit.
Biology
1 answer:
stellarik [79]3 years ago
3 0
"<span>It is estimated that genetics account for about 75 percent of the inclination to begin smoking, and for about 54 percent of the ability to quit."

According to </span>Caryn Lerman, a p<span>rofessor of psychiatry that has done much research in </span><span>neuroscience, pharmacology, genetics, and behavioural science with the objective to better the treatment for tobacco dependence, 75% of the inclination to begin smoking is from genetic base, and 54% of the ability to quit is also from genetic base.</span>
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andriy [413]
vestigial limbs

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Humans, for one example, have no real need for an appendix now that we are no longer herbivores. 

Look at a x-ray image of certain snakes and you can see the structural remains of feet. 
3 0
3 years ago
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The arterioles (small arteries) leading to an organ, constrict in order to decrease flow to the organ. To shut down an organ, bl
solong [7]

Answer:

The radii of the arterioles constrict by humoral control and by nervous control.

Explanation:

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This muscle is under the control of the autonomous nervous system and certain hormones.

Substances such as  adrenaline, noradrelanine, angiotensine, vasopresin, and endotelines cause vasoconstriction.

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7 0
3 years ago
A summary of what grade 10 learn in biology ​
lukranit [14]

Answer:

cells, energy and transport, reproduction and cell division, classical genetics, molecular genetics, evolution, human body systems, ecology.  

Explanation:

I looked this up and i have a older sister in grade 10, so i'm 100% sure this is right.

4 0
3 years ago
Explain the reason it is important to make careful observations about the specimens when using a dichotomous key
enyata [817]
Dichotomous key is a tool <span> - a series of questions and choices </span>that allows the user to determine the identity of items in the natural world, such as trees, wildflowers, mammals, reptiles, rocks, and fish. The first step is observing the whole specimen you want to identify. Observing  the habitat in which it is growing,its size and  overall shape and some<span> distinguishing features. It is very important to make carefully these observations in order to use the key.</span>
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3 years ago
1. How might a finch population evolve if these tough seeds were the main food source compared to tiny insects?
MAXImum [283]

Answer:

they would get harder beaks

Explanation:

the beaks would need to be tougher in order to eat the seeds

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3 years ago
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