Answer:
hydrophilic (“water-loving”) or polar end and a hydrophobic (“water-fearing”) or nonpolar end.
Explanation:
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Answer: B . Mesoderm
Explanation:
The intermediate mesoderm connects the paraxial mesoderm with the lateral plate, eventually it differentiates into urogenital structures consisting of the kidneys, gonads, their associated ducts, and the adrenal glands.
<span>Membrane receptor proteins relay signals between the cell's internal and external environments.
<span>
Transport proteins move molecules and ions across the membrane.</span></span>
In an experiment, independent variables are those which are changed or manipulated to find the value of dependent variables. Here number of roses is dependent variable because its number depends on how many aphids are present. So option A is incorrect. Kinds of aphids killed is also dependent variable, because its population depends on how much chemical is sprayed to kill it. So, option C is also incorrect. Kind of rose is irrelevant, because aphids will eat any kind of rose. So the right answer is - <u>Option B, kinds of chemicals used</u>. This is because it will determine the number of aphids left and population of roses.
