Answer:
Primary and secondary succession differ because primary is where no soil or organisms exist, but secondary succession is where soil and organisms exist. ... Grass poking through a sidewalk crack would be considered secondary succession because before the sidewalk was built, an ecosystem was there.
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Hope it helps
Molecule is formed when atoms combine by covalent bonding. The molecule may be polar or non polar.
The difference between butterflies and moths is a lot like the difference between frogs and toads. There are some rules of thumb you can follow to tell them apart, but there are also exceptions to those rules. Next, we'll look at exactly what makes a butterfly different from the moth and what clubs and feathers have to do with it.
Because water is so good at storing heat energy, it is harder for organisms to experience a change in body temperature in harsher climates.
Answer:
true
Explanation:
mutations deal with chromosomal changes, and while they might not always be reflected in the phenotype.. the genotype does change