Answer:
The birds are oviparous in nature and produces eggs that are hatched later by the parent. the egg hatching require proper heat and protection from the external enemy.
The egg shell is the hard covering of the egg of the bird that is made of the calcium. The egg shell protect the egg from the external environment. The calcium layer for the egg shell formation is obtained by the oseteoclast property of the cells.
Answer: The correct answer for the fill in the blank is High.
Hypotonic solution is the one, which contains less concentration of solute (like salt) as compared to the solvent (water).
In other words, in a hypotonic solution, the concentration of solvent is higher than the concentration of solutes.
Thus, the relative concentration of water ( which is a solvent) in a hypotonic solution is high.
The answer is RNA polymerase binds to a promoter region of DNA.
Answer:
Metaphase
Explanation:
In prophase, spindle fibers start emerging from the centrosomes. In metaphase, the spindle fibers attach to the sister chromatids.
