Answer:
The septum
Explanation:
The septum is a thick wall of muscle that divides the heart. It separates the left and right sides of the heart.
Microtubules are macromolecules that build both, cilia and flagella.
<span>Microtubules are cytoskeletal fibres that are formed by polymerization of α,β-tubulin and they are important components of cilia, flagella and some other cellular structures. Cilia and flagella are very similar in their organization, both have a central bundle of microtubules-axoneme. Axoneme is compound of nine outer doublet microtubules which surround a central pair of singlet microtubules. Even thought cilia and flagella are structurally similar, they are differentiated based on their function and/or length. Flagella are longer and the primary role of the flagella is locomotion. On the other hand, shorten cilia often has the function in sensing the extracellular environment.</span>
Answer:
The correct answer is B 4 cells are formed,each having half the number of chromosomes as the original cell.
Explanation:
Meiosis is a specific type of cell division that occur in the germ cells.Meiosis is called reductional division because the 4 new cells those are produced after second meiotic division contain half the number of chromosomes as that of original cells.
During meiosis a cell undergo division two times the division that occur during first time is called first meiotic division resulting in the formation of 2 cells having 2n number of chromosomes.On the other hand the second meiotic division form 4 cells each having half the number of chromosomes.
Answer:
The spikes would be pointed and long, strong, to be able to break the surface of the marble and the particles.
Explanation:
The adaptation of the beaks is the selection of the fittest, in nature the species that best adapts and evolves according to the changes in the environment that surrounds it survives.
This was mentioned by Charles Darwin.
