The circulatory system is similar because it goes all throughout the human body, carrying nutrients and oxygen to all cells in the body.
Think of the circulatory system as roads/highways going all throughout out the body bringing "vehicles" or nutrients and oxygen to their destinations which are cells.
The correct answer is genetic drift has minimized the frequency of type A individuals.
Usually, genetic drift takes place in small populations, where infrequently happening alleles encounter with a greater chance of getting lost. Once it starts, genetic drift will continue until the involved allele is the only allele present in a population at a specific locus or until the allele involved is lost.
In the given case, allele A is lost due to genetic drift phenomenon.
Answer:
If consumers decrese, the animal that eats them will die off and the animal that eats that one will die off and so forth. Also, the plants will not be under 100% controle.
Explanation:
The right answer is B)
Photosynthesis equation:
6CO2 + 6H2O + Sunlight > 6O + C6H12O6