a. Competition: Humans compete with all organisms for space.
b. Parasitism: Humans have many parasites: head lice, ticks, tapeworms, etc.
c. Mutualism: We have mutualistic relationships with all domesticated plants/animals.
d. Commensalism: Pigeons thrive in metropolitan ecosystems without really
affecting humans (except for being mildly disgusting).
Explanation:
the action or process of fertilizing an egg involving male and female gamete to form zygote is fertilization. fertilization result in zygote.
hope it helps.
The most important reason they are considered non living is because they cannot live and reproduce without the help of a host cell.
The Biblical flood would have caused the death of all life on earth, except for those on the arc, which would have resulted in fossils that are now found. Fossils being found in different layers of rocks could have been a result of how they settled as the waters receded.
B) sunlight
Sunlight supports life by providing food and warmth which is needed for the population of practically anything on earth to survive
