Answer:
propulsion of a sperm cells occurs due to the sperm's tail containing a large number of proton channels called Hv1 and It gets energy from the seminal plasma.
Explanation:
Seizure
Syncopal episode occurred when there
is sudden or temporary drop in blood flow to the brain which results into loss of
muscle control or loss of consciousness. Fainting or passing out can also be
referred to syncopal episode and condition usually last for only seconds or
minutes.
A: We say that it takes 500 to thousands of years to create an inch of topsoil. The reason is that soil is often derived from rock. The rock has to be broken into small pieces first. This happens by physical weathering: things like freezing and thawing in colder climates, and chemical weathering in warmer climates.
Answer: The correct answer is: C The are the same except osmosis specifically and only involves water.
Explanation:
Osmosis is the process in which a solvent moves across a semipermeable membrane in order to dilute a concentrated solution and it ends up equalizing the concentration of the solution at both sides of the cell membrane.
On the other hand, diffusion occurs when particles move from an area of higher concentration to an area of lower concentration and it ends up equalizing the concentration.
So the main difference is the presence/ Lack of water in the processes.
In conclusion the correct answer is : C.
<span>Answer: optio b. Healthy ecosystems. The other three options design trheatens on biodiversity because invasive species, climate change and pollution may kill many species that cannot adapt to a sudden change and will benefit a reduced number of species that can adapt and survive. Healthy ecosystems promote biodiversity, so it is a value.</span>