Biological evolution is the process by which populations of organisms change over time. How could natural selection lead to the evolution of a species?
Answer:
C. The fossilized remains of giant sloths were found in places where smaller sloths now live.
F. The bony shells of armadillos resembled the shells of ancient Glyptodon fossils.
Explanation:
Relationships between existing and living species occur when they share some sort of similarity in their anatomy, internal biological structure and DNA structure. In both option C and F some sort of resemblance between the existing and previous species form has been established. Thus, these two options are correct.
However, in option A, B, D and E no such relationship has been established.
Answer:
The parents must be Tt, Tt
Explanation:
Based on these results, we can conclude that each of the parents will have one dominant (T) and one recessive allele (t). We can prove this by drawing the Punnett square:
T t
T TT Tt
t Tt tt
We can see that the offspring will have the Tt genotype in two cases, the TT genotype in one case, and the tt genotype in one case, as well. Now we need to do some basic math. Two out of four is 50% (Tt - 50%), and one out of four is 25% (TT - 25%, tt - 25%).
This means that the parents must be Tt, Tt.
Answer:B
Explanation:
because if we strand dna we wouldnt have genes
She would die because she would not have oxygen
