Answer:the resistance that one surface or object encounters when moving over another.
Explanation:it is easy!
Answer: Generally, these factors are based on two things: hydrostatic pressure and osmotic pressure. Water will only flow across a membrane firstly if the membrane is permeable to water.
Explanation:
<span>The formation of the fertilization envelope (slow-block to polyspermy) requires an increase in the availability of </span>calcium ions.
Slow-block to polyspermy is also called cortical reaction. In this reaction, the sperm will be permanently blocked by cortical granules. The release of calcium ion will trigger this reaction.
Answer:
algae are autotrophs, and fungi are heterotrophs. algae contain photosynthetic pigments. fungi are capable of digesting non-living, organic material, and also absorbs simple nutrients by the fungal hyphae
