Answer: When the plant has enough water in its cells the guard cells swell up and open the stomata. When the plant isn't getting enough water the guard cells can't swell and the stomata stay closed, so the plant doen's lose water. But if the stomata are closed photosynthesis can't happen and eventually the plant might starve.
Explanation:
Answer:
Toxic Algae Blooms
Explanation:
Floodwater deposits a large amount of sediment. excess nutrients promote the growth of algae is a cause of eutrophication.
Answer: <u>Birds </u>have vision as good as that of humans.
<em>Your Welcome ;)</em>
<span>When traveling in a vacuum, electronic waves from the electromagnetic spectrum all travel at the same speed. Velocity is speed with direction, so they would all travel at the same velocity, realtively speaking. But frequency and wavelength are quite different</span>
Answer:
¿Qué aplicaciones tiene la biotecnologia actualmente?
Ejemplos de biotecnología
Antibióticos.
Cultivos de bacterias y levaduras.
Leche descremada, fortificada o larga vida.
Aportes a la lucha contra el cáncer.
Producción de biocombustibles.
Plantas transgénicas.
Plásticos biodegradables.
Vacunas.
