Answer:
160
Explanation:
If p = frequency of dominant allele and q = frequency of recessive allele according to Hardy-Weinberg equilibrium,
p + q = 1
p² + 2pq + q² = 1
where p² = frequency of dominant homozygous genotype
q² = frequency of recessive homozygous genotype
2pq = frequency of heterozygous genotype
Here,
b = 4% = 0.04
bb = 0.04 * 0.04 = 0.0016
Number of individuals in population = 100000
Number of homozygous bb individuals = 0.0016 * 100000 = 160
Because moving water wears away cliff
Aquired traits arent passed onto offspring and natural selection takes place over a long period of time over many generations so only genetic traits can change over a period of time whereas aquired traits, eg a lost limb, are random and one off
The process by which new species are formed
Chloroplasts (takes in the sun's energy to make food for the plant). Cell membrane (It helps the plant stand up because plants don't have spines like us).