Genotypes=genetic makeup
Phenotypes= physical characteristics
You can not change your genetics, so that means C is out!
Said genotypes are usually inherited as well so A is out.
I’m not 100% sure but i would deduce the answer is B
There are some insects that can walk on water, this phenomenon is possible because the water has surface tension. One animal that can walk on water is the lizard.
A. Kidneys are the organs in the urinary system that produce urine after breaking it down from food.
The study of tree rings is called dendrochronology. Trees produce a single growth ring each year and by studying the size and composition of each ring scientists can get information about the age of the tree, available nutrients in the area, and general climatic conditions. A relatively small ring may indicate a year when there was very little rainfall and a larger ring indicates favourable conditions for plant growth.
Ice cores hold information on past global volcanic activity and past atmospheric conditions. Tiny bubbles in the ice cores give information on the concentration of gases in the atmosphere. Ice core data plays a key role in linking the increase in carbon dioxide concentrations to present day global warming.