<span>Our biosphere is the global sum of all ecosystems. It can also be called the zone of life on Earth, a closed (apart from solar and cosmic radiation) and self-regulating system. Geology studies the Earth, and has tendrils in all ecosystems, thus the connection to the biosphere.</span>
I think the answer is spore hope this helps
ARISTOTLE first classified organisms.... in 4th century B.C.
Answer:
1) The main function of the male reproductive system is to produce and transport sperm.
2) The male reproductive cells are produced in the testes, which are contained in the scrotum.
3)These cells travel through a tube, where they are mixed with fluids from glands to form semen.
Explanation:
Sperm cells are produced in male organism in the oval structure called testis. Sperm cells contain genetic information lf these sperm cells combines with the female egg cells, it produces zygote which turns into a new baby organisms. The new organism is different from their parents because half genes comes from male and half from female.
The mass number is the sum of the number of protons and number of neutrons the atom has.
So, we can write the equation as:
x + 20 = 40
x = 20 neutrons.