With every other lever 10% of the energy with be transferred. In this case:
Primary Producers (500)
1) First- level consumer. (50)
2) Second-level consumer. (5)
3) Third- level consumer. (0.5)
Remember the formula is:
(Primary Producer) __units X 10%= __
In this case: 500 units X 10%= 50
I believe the correct answer is the presence of harmful bacteria.
<span>There are three primary systems in the body that act as a buffer, in order to help maintain pH stability.
The first is known as the phosphate buffer, which neutralizes excess hydroxide ions as they enter cellular fluid.
The second is called the protein buffer, and maintains acidity in the body. The hemoglobin in blood, which binds to acids in the bloodstream, is one such example of this system.
The third system is called the carbonic acid bicarbonate buffer, which neutralizes the acids generated by various metabolic processes, such as digestion and respiration.</span>
Answer:
Helium
Explanation:
Helium is extracted in a few places in the world, namely USA, Algeria, Russia and Qatar. Helium is abundant in space, where it's produced as a product of the fusion reaction inside stars such as the sun.
Ans.
Human reproduction involves release of sperm (male gamete) and egg (female gamete) and their fusion to form zygote that develops into embryo. In females, an egg is released each month as a part of a monthly cylce, called menstrual cycle. The release of egg is termed as ovulation, in which tiny eggs are send into the fallopian tubes for fertilization.
Hence, the correct answer is 'a). an adult female usually releases an egg from an ovary each month.'
