<span>The study of the interactions of genes with the environment is called Epigenetic, is how genes are expressed in relation to environmental factors and how diseases and other conditions develop. It is the study of the impact of environment and lifestyle on the behavior of genes and the way it responds to external factors.</span>
You can carry out a test ,
1- take a sample of the air in a test tube
2-add limewater to the test tube
3- result : if it turns milky/cloudy it has microorganisms
4- reason: because every microorganism respires , and so it produces Carbon dioxide .
and limewater is the test to show the presence of Carbon dioxide .
Answer:
<em><u>mutualism</u></em>
As Mackenzie told us, the mutualism between strawberry poison dart frogs and bromeliads is “evidence of the complexity that exists in the biological world and the interconnectedness of species.”
Explanation:
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<h3><u>Answer;</u></h3>
A. <em>18 hydrogen atoms </em>
<h3><u>Explanation;</u></h3>
- <em><u>Alkanes are group of hydrocarbon that are saturated</u></em>. They are saturated in the sense that each carbon atom has maximum number of hydrogen atoms.
- <em><u>The homologous series of alkanes has a general formula of CₓH₂ₓ₊₂.</u></em>
- Therefore,<u><em> an alkane with 8 carbons will have; (2×8) +2 = 18 hydrogen atoms. </em></u>Thus, the formula of the hyrocarbon will be; C₈H₁₈.
