The correct answer is - B. Beak size determines what the bird can eat.
The beak of a bird can come in many different shapes and sizes. It can be pointy, long, short, rounded, scythe-like, thin, thick... All of those shapes and sizes have a specific role, and that role is to enable the bird to feed itself with certain type of food source. Every food source requires certain type of beak in order for the bird to be efficient in getting its nutrition, so depending on hat the bird eats, we can easily see a pattern in the beaks, where birds that eat nuts have one strong and shorter beak, the ones that eat warms and insects have thin, pointy one, the predator birds have claw like, sharp beak...
Answer:
The cells on the cornea are maintained by pheripheral vessels and surrounding fluids.
Explanation:
*- The capillaries of the limbus nourish the peripheral part of the cornea.
*- Tears supply of glucose in the tear film
*- Aqueous humor nourishing the outermost layers of the cornea the endothelium being a unicellular layer
Answer:
Doubles the amount of DNA and reduces the chromosome number from 2N to N.
Explanation:
Meiosis is a cell division in which one cell divides into 2 cells in the first meiotic division and then these two cells divide into two more cells so overall 4 cells are produced from one cell. This division occurs in gamete cells.
First, the amount of DNA gets double by converting the single-stranded DNA into double-stranded DNA. Then the homologous chromosomes get separated into two different cells in the first meiotic division and till now the chromosome number is 2N.
After the second meiotic division, each sister chromatids of a chromosome gets separated into separate cells and the chromosome number in daughter cells becomes 1 N. So the major role of meiosis is to double the DNA mount and reduce the chromosome number by half in all daughter cells.
Answer:
A. Wood
Explanation:
Material is a physical object (something made up of molecules, atoms etc.)
Other listed options are characteristic of that given material. For example, an iron bar is a material, but its shiny lustre is its characteristics.
