Answer:
1. Tt, Tt
2. RR, Rr
3. 50% homozygous
4. Pp Pp
5. 50% purple flowers
6. Pp, Pp, purple heterozygous
7. pp pp
8.SS, Ss or SS, SS
9. Parents were SS, Ss
Explanation:
The correct answer is option (B) continental drift.
Continental drift is a theory explaining the movement of the earth’s continents over the geological time scale, drifting across the ocean bed. It was proposed by Alfred Wegener in 1912. Similar plants and animal fossils found around the shores of the different continents suggests that these continents were once joined as a single super continent named Pangaea. This Pangaea broke up long ago and the continents moved to their current positions. The ancient fossils of the same species of plants and animals were found on rocks of the same age but on the continents that are now widely separated.
Small Geographic Range
“A useful index fossil must be distinctive or easily recognizable, abundant, and have a wide geographic distribution and a short range through time.”
The answer is 2/4 (B) because in a Punnett Square, a male parent and female parent’s X chromosomes cross together 2 times and with a Y chromosome 2 times. This makes it probably that, out of the 4 squares, 2 of those squares will be female. sorry
the correct answer is b oxygen because the larger an organism gets the more it needs to sustain themselves therefore if a fish that gets its oxygen from the particles in the water well it might not be able to get a sufficient amount of oxygen from the water since its growing and requires more
