Answer:
The correct answer is : temporal isolation.
Explanation:
Temporal isolation is a one type of prezygotic reproductive isolation in which the the prevention of mating of the two species takes place due to the time difference of breeding, this could be day difference, season difference, or years difference.
Here in this example the reproductive isolation is taking place due to the difference in their mating time, where L. graminifolia flowers in the early spring and L. canadensis in different season of summer.
Thus, the correct answer is : temporal isolation.
The pumping of the heart is tied to the respiratory system
Good Morning! How Are you?
Well, the answer to this question must be A or C. As fibrin is Collagen fibers, which homeostasis involves including platelets and endothelium cells. Out of the two, i do believe C, or the third from top to bottom is the best answer :)
Thank you,
Darian D.
Answer A:
1. Spiral chloroplast:
This organelle help in photosynthesis, because it contain green pigment called chlorophyll in which water and carbon dioxide combine in the presences of sun light to prepare glucose.
2. Cell wall:
It is chemically composed of<span> an outer layer of pectin and an inner layer of cellulose. It provide rigidity and shape to spirogyra cell.</span>
Answer B:
The other parts which are not labelled include mucilage, cytoplasm, pyrenoids, cytoplasmic strand.
Answer C:
Function of pyrenoid:
<span>Each chloroplast strand has several round bodies called 'pyrenoids', which are responsible for starch production.
</span>Function of mucilage:
Mucilage help in retaining water in cell.
