Answer:
Hydrogen and part oxygen
Explanation:
Water is composed of these two which makes the symbol H20
Answer:
They formed from a cloud of dust and gas.
Explanation:
A nebula is where the formation of stars takes place, so the Nebula Theory would pertain to the planets forming in the same way.
Answer:
a)
Explanation:
Based on the scenario being described within the question it can be said that two or more populations of toads will form that are genetically distinct from each other because the toads will eventually become isolated on each island. This is mainly due to one population beating out the other in each island and/or adapting the the unique features of the island.
Big growth is
<span>macroevolution as small growth is to microevolution</span>
Answer:
A malaria outbreak causing allele frequencies to change is an example of <u><em>natural selection.</em></u>
Explanation:
Natural selection is a type of selection in which those organisms are favoured to live and reproduce which are better adapted to live in an environment. Due to natural selection, the allele frequencies of a population will tend to change with the passage of time.
When the outbreak of malaria occurs, those organisms which do not catch malaria are able to survive and pass on their characteristics to their offsprings. the other organisms die and do not reproduce. This will cause changes in the allele frequencies.