Answer:
The correct answer is energy. Other organisms are not necessary, just like offsprings since there are many organisms that never have offsprings. Light is also not necessary with numerous organisms, especially those like the ones that live deep in the sea where light never reaches. Some form of energy is necessary for everyone.
Water be included in the model as a reactant and a product
<u>Explanation:</u>
- Reactants are the one that react together in a chemical equation. The product is the result formed due to the chemical reaction occurring between the reactants.
- For example if natural gas is burnt the methane and the oxygen are the reactants. The product produced due to the chemical reaction is Carbon dioxide and water as the product.
- For the production of ADP water acts with ATP to reduce Triphosphate to diphosphate. In this, it is the reactant and in chemical reaction the bonds are broken between the atoms and new bonds are produced between the products.
Answer:
D. Natural selection
Explanation:
Natural selection supports this theory.
A streamlined body is a body that is shaped to specifically reduce friction drag when moving.
Flippers and flattened tails are used to propel an animal through the water.
A smooth, almost gutless body is light, which is important when animals have to go through water quickly.
A thick layer of blubber is only used for insulation, and would hamper an animal's progress through water due to its weight.
The answer is B. thick layer of blubber.
Many cases seem to occur without an apparent cause, while some may occur due to a genetic ( inherited ) defect, environmental exposure during pregnancy, or a combination or both factors. Syndactyly may also occur as a part of an underlying genetic syndrome and can be found in over 300 different genetic syndromes
