The first one is atoms cause they are all the same type of particles. The blue one is the molecules that is not compound cause they aren't connected to each other. The other two are compound cause two atoms of two different elements are bonded together.
A bonds with T in DNA
A bonds with U in RNA
G bonds with C IN DNA
In RNA, the only difference with the code is uracil takes thymines place
In the apple maggot fly, the frequency of certain alleles increases steadily as one goes from North to South. This is an example of: Sympatric speciation.
Sympatric speciation is observed when there are no physical barriers which prevent any members of a species from mating with another, and all members are in close contact to one another. A new species, possibly established on a distinct food source or trait seems to develop instinctively.
The example of apple maggot fly supports a model for sympatric speciation in progress. Hawthorn is the native host for the apple maggot fly in North America. However, in the mid-1800s, a new population developed on introduced, domesticated apple.
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Animal cells<span> each </span>have<span> a centrosome and lysosomes, whereas </span>plant cells do<span> not.</span>Plant cells have<span> a </span>cell<span> wall, chloroplasts and other specialized plastids, and a large central vacuole, whereas </span>animal cells do<span> not.</span>