Answer:
Pollen grains land on the stigma and move down the pollen tube into the ovary.
Answer:
The rise in the level of water indicates that CO2 is produced by germinating seeds during respiration. Actually, the germinating seeds respire and produce CO2.
The secondary structure of a protein
inversion
mutation that involves the addition, subtraction, or substitution of a single base is known as an inversion. polypoloidy. a chromosomal aberration.
