In botany, a stoma is a pore, found in the leaf and stem epidermis that is used for gas exchange. The pore is bordered by a pair of specialized parenchyma cells known as guard cells which are responsible for regulating the size of the opening. Hope that helps you out. best way I can put it for ya!
Answer:
they absorb heat from the sun
explanation: plants in the tundra tend to have dark-colored leaves and stems that help them absorb solar heat faster and keep warm for longer periods.
h i )
Answer:
2 electrons
Explanation:
According to the octet rule, atoms must bond to each other, sharing electrons among themselves in an attempt to complete their valence shell (last layer of the electrosphere). In other words, an atom becomes stable when it has 8 electrons in its valence shell.
Oxygen atoms have six electrons in their valence shell, so to achieve the stability suggested by the octet rule (eight electrons), these atoms share two electrons, forming one oxygen gas (O₂) molecule.
bacteria also called germs are microscopic organisms not visible with the neked eye bacteria are everywhere both inside and out Side of your body bacteria can live in a veriety of environment from hot water to ice
Answer:
The type of evidence is<u> Mechanical incompatibility.</u>
Explanation:
Copulation is often impossible between different animal species because of the incompatible shape and size of the genitalia.It is called mechanical incompatibility.
This isolation prevents species that diverge from interbreeding thus they lo longer able to mate with each other.
Here morphological difference takes place which ultimately leads to behavioral isolation and thus no mating takes place.
Here snail can not mate because their morphological structures are incompatible.
