Answer: Chemical reactions occur when chemical bonds between atoms are formed or broken. The substances that go into a chemical reaction are called the reactants, and the substances produced at the end of the reaction are known as the products.
Explanation:
Small population usually cant find a mate or be able to continue a species.
Answer:
defines a species as any group of actually or potentially interbreeding species that produce viable offspring.
Explanation:
<em>Biological species refers to a group of genetically and physically compatible organisms. These organisms are capable of mating or interbreeding and the offspring that result from this mating, as a rule of thumb, must be valid or fertile.</em>
Hence, species do not only share similar genetic materials (in form of DNA), they must also be physically compatible to mate and the resulting offspring from the mating must be fertile.
Answer:
2. We recognize living things by their shared features such as energy transformation or reproduction.
During diffusion the molecules move in constant random motion. <span>The </span>net movement<span> of a substance from a region where it has a higher concentration to a region where it has a lower concentration, due to random molecular motion, is called </span>diffusion<span>. Diffusion is a widespread and important process which occurs in both living and non-living systems. </span>