Answer:
The correct answer is option (D) there was a time in Pennsylvania history when dinosaur existed.
Explanation: A paleontologist discovers a rock slab on which the footprints of a Pennsylvania dinosaur are well preserved. This means that there was a time in Pennsylvania history when dinosaur existed in this area. Here fossil is a fragment of rock on which the footprints of dinosaur is present.
If two heterozygous parents mate, the phenotypes of the resulting offspring will be 75% dominant and 25% recessive
Answer:
The answer is D.
Explanation:
Colour blindness is affected by the genes in our DNA not X chromosome.
(Correct me if I am wrong)
Answer:
NADPH
Explanation:
What transports electrons from the light reactions to the Calvin cycle? NADPH is an electron carrier that picks up electrons in the light reactions and releases them in the Calvin cycle. ... The Calvin cycle is a complex series of chemical reactions carried out in the stroma. there you go