The best and the correct answer among the choices provided by the question is the second choice.
Temporal isolation could be the mechanism that <span>might keep Rana aurora and Rana boylii from mating.</span>
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DNA
Explanation:
DNA and RNA are made up of monomers known as nucleotides. The nucleotides combine with each other to form a polynucleotide, DNA or RNA. Each nucleotide is made up of three components: a nitrogenous base, a pentose (five-carbon) sugar, and a phosphate group .
Answer:
They add sulfur oxide to the atmosphere causing acidic rain.
Explanation:
At combustion , they release pollutants like sulfur and Nitrogen oxides to the atmosphere which contributes to the formation of acidic rain and smog among other negative consequences.
The circulatory system is mainly made up of the heart and the blood vessels. It is closely related to the respiratory system which is primarily made up of the lungs. The digestive system is primarily made up of the gastrointestinal tract. This simply means your mouth, esophagus, stomach, small and large intestines, and rectum up until your anus. All the cells in the human body are kept alive by these systems working together in harmony.
The heart pumps blood throughout the whole body via the blood vessels. Blood, particularly red blood cells (RBC), carry oxygen and nutrients inside of them and release them to the other cells in the body. Oxygen comes from the lungs in the respiratory system every time we breathe in air. Nutrients come from the digestive system after food has been broken down to small components that can be utilized by the cells in the body.
Answer: The answer is option C
Explanation:
Option c- Beta carotene had not yet been absorbed by the body in sufficient quantities to influence the amount of vitamin A being produced. Beta carotene is an organic, red-colored pigment that is found to be abundant in plants and fruits. it is a member of the Carotenes. Beta carotene is an inactive form (precursor) to vitamin A.
