Answer: D
Explanation:
Many unicellular organisms live in bodies of water and must move around to find food. Most often, they must obtain nutrients by eating other organisms. Plant-like protists, and some types of bacteria, can make their own food through photosynthesis.
I guess that is:
Within the capillaries of the lungs, gases are exchanged by diffusion; O2 diffuses from the alveolus to the bloodstream and CO2 diffuses from the bloodstream to the alveolus.
Answer:
Don’t quote me, but A.
Explanation:
There is a bug, called a Water Strider, that use surface tension to ‘walk on water.’
Answer:
Explanation:
Given frequency of the two alleles i.e "B" and "b" are equal .
As per Hardy–Weinberg equilibrium, sum of frequency of the two alleles is equal to one.
i.e
Since
and will be equal to 0.5
Frequency of genotype "BB"
Frequency of genotype "bb"
As per second equation of Hardy–Weinberg equilibrium,
Substituting the values of p and q in above equation we get -
Red beetles have genotype BB and Bb
number of red beetles with genotype (BB)
number of red beetles with genotype (BB)
Total red beetles
Frequency of red beetles