C. a dihybrid cross involves organisms that are heterozygous for two characters and a monohybrid only one.
If grey feathers is a recessive trait, then 72.8% of the population is heterozygous for this trait.
Explanation:
The concept used here is of Hardy Weinberg principle, 
+2pq =1
The homozygous dominant genotypeis represented as 
= 84
Red = dominant
The homozygous recessive genotype trait is represented as 
= 16
grey = recessive
2pq = heterozygous individual
Thus for dominant homozygous the alleles are given as
p= 
= 9.1
q = 
= 4
for heterozygous individual 2pq
2 x 9.1 x 4
= 72.8
72.8% population is heterozygous for the trait.
Answer:
Explanation:
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Vegetative reproduction is a type of asexual reproduction in which an individual is reproduced from vegetative parts such as leaf, stem etc. while seed contain inactive embryo which is formed from zygote.
Abiotic refers to NONLIVING things. Such as rocks..
Sooooo it would be water because although there are so many living things in water the actual chemical compound of H2O is nonliving.
C
