There is no definite answer. Humans come in all shapes and sizes.
Sexual reproduction relies on two different sexes (female & male) because one has the egg and the other has the sperm.
Answer: B. Pathways by which matter is transferred between organisms and the environment
Explanation:
Biogeochemical cycles can be define as cycles which involves the natural pathways by which inorganic and organic matter is transferred within the living organisms and the environment.
The essential elements such as water, carbon, phosphorous, nitrogen and oxygen are transferred among the various spheres of the earth like atmosphere, biosphere, lithosphere and others which forms the integral part of the non-physical environment.
Climate change is the choice that answers your statement
C. Protons and electrons must be equal as protons have a + charge and electrons are - so they cancel out
