Answer:
Genetic variation is the difference in DNA among individuals or the differences between populations. There are multiple sources of genetic variation, including mutation and genetic recombination.
Explanation:
During a solar eclipse, when the Moon's shadow falls on the Earth, we stand in the shadow rather than looking at it. Observers standing in the umbra see a total eclipse of the Sun, while observers under the penumbra see a partial eclipse.
Answer:
Yes,
It is considered equilibrium or homeostatis.
Explanation:
example: plankton as a producer, minnows and young fish eat the plankton. Larger game fish eat the littler fish. Humans and other animals consume larger fish. Animals die off, bacterial decay are washed into water to start it all over again.
Almost always it's a case of opposites attract. In general metals give away electrons to the non metals on the right side of the periodic table. The metals have a + charge, the non metals have a - charge. Instant attraction. The attraction is pretty powerful: the ionic bond is among the strongest in chemistry.
The correct answer is false. Hope this helps!