the answer is natural selection
Sexual reproduction in flowering plants involves the production of male and female gametes, the transfer of the male gametes to the female ovules in a process called pollination. After pollination occurs, fertilization happens and the ovules grow into seeds within a fruit.
Answer:
NAD+ and FAD+
Explanation:
NAD+ and FAD+ are the electron acceptors in the breakdown pathways. As NADH and FADH2, these carriers transport high-energy electrons to the electron transport chain where the electrons power the production of ATP.
Answer:
Our alimentary canal undergo a process or a movement called peristalsis, in which the walls continuously move to pass the food downwards. So if you eat hanging upside down, the food would surely move.
Explanation:
- Peristalsis is a series of wavelike muscle contractions that moves food to different processing stations in the digestive tract and the process begins in the oesophagus when a bolus of food is swallowed.
- The muscles of the oesophagus are strong enough to propel food and liquids into the stomach even when hanging upside down although there is a risk of choking
- It is advised that maintaining a correct body positioning during eating is very important for digestion to happen properly and avoid blockage of the airways by food and fluid.
- Leaning your body upright slightly and rounding your shoulders a bit so that your chin is tucked-up is a way of exercising safe chewing and swallowing.
Answer:
1). Renewable energy resources include: solar, wind, water (hydro), biomass, and
2). Nonrenewable energy resources include: coal, nuclear, oil, and natural gas.
Explanation:
Renewable energy resources are replenished naturally and over relatively short periods of time while Nonrenewable energy resources as their name applies are limited in their quantity and supplies too.
These forms of energy are primary formed when fossil fuels are destroyed by use, i.e they are not been recovered(nonrenewables); which brings in alternative sources(renewables).
Human supplies of fossil fuels and minerals are dwindled fast. These are nonrenewable resources as we cannot produce them by any process. Our demand for these limited resources, however, is constantly increasing. So we to cut down their wastages, find acceptable alternatives and also recycle them where possible.
