Answer: d. All of the above are correct.
Explanation: Natural resources are resources provided by nature. They occur in nature without manmade interference. Natural resources include mineral deposits, land water bodies and the atmosphere. These resources are utilized by man for economic, social and educational purposes. Natural resources can be renewable or nonrenewable resources such as water are renewed by rainfall. Heavy manmade activities such as industrialization, war or natural disasters can deplete these resources.
Answer:
Genotype
Explanation:
Phenotype refers to traits that physically appear, genotype refers to genetic traits
Answer: the proper number of chromosomes.
Explanation:
Answer:The optical microscope, often referred to as the light microscope, is a type of microscope that commonly uses visible light and a system of lenses to magnify images of small objects.
Explanation:Optical microscopes are the oldest design of microscope and were possibly invented in their present compound form in the 17th century.