In animals, the circulatory system performs a similar function because it transports vital nutrients around the body of the animal, just like how xylem and phloem transport water, minerals, and sugar to different parts of the plant.
The Moon is an astronomical body that orbits planet Earth and is Earth's only permanent natural satellite. It is the fifth-largest natural satellite in the Solar System, and the largest among planetary satellites relative to the size of the planet that it orbits (its primary).
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

Answer:
The answer is the 3rd option.
Explanation:
This is because option 1 and 2 don't make sense and the 4th option if you count lll. has 4 elements where l. has 3 elements.