Answer:
oxygen enters blood cells by 'diffusion'
The love found in the area is the frontal lobe
Plants are regenerate energy sun heat carbon dioxide nature of photosynthesis
Synthesis of compounds with the aid of radiant energy
an egg cell has a haploid nucleus so it has half the number of dna because it fuses with a sperm cell to have the full amount of dna.
an egg cell has 23 chromosomes and a sperm cell has 23 chromosomes.
they both have half the amount of dna to form a zygote