Answer;
-Zygote
When sperm and ovum unite at conception, a zygote results.
Explanation;
-Conception occurs when a sperm cell from a fertile man swims up through the vagina and into the uterus of a woman and joins with the woman's egg cell (ovum) as it travels down one of the Fallopian tubes from the ovary to the uterus.
-A zygote is the union of the sperm cell and the ovum. Also known as a fertilized ovum, the zygote begins as a single cell but divides rapidly in the days following fertilization. After this two-week period of cell division, the zygote eventually becomes an embryo.
food web, it could extend way farther and take longer to understand in a way
Poliomyelitis or Polio, a virus and viral disease. Poliomyelitis while relatively common and asymptomatic, had a high prevalence of paralysis due to the sheer number of infected. The vaccine was created by Jonas Salk, that immunized the patient towards the disease, saving countless lives, and effectively paved the way to eliminating polio in US.
Answer:
Plankons, fungi, bacteria, lichens etc. are the pioneer species of ecological succession. Pioneer species are hardy species which are the first to colonize previously biodiverse steady-state ecosystems. Some lichens grow on rocks without soil, so may be among the first form of life the example includes bacteria, fungi, and lichens.
Explanation:
