Answer:
Circulatory system is an organ system which is composed of the heart and blood vessels. Blood vessels consists of arteries, veins, and capillaries.
Explanation: Heart is the pumping organ which pumps oxygenated blood to all cells of the body and bring back deoxygenated blood from all the cells.
Blood vessels consists of arteries, veins and capillaries. Arteries are the vessel which carry oxygenated blood. Veins are the vessel which carry deoxygenated blood and capillaries are the tiny vessel which are connected to the every cell from arteries and Veins.
The correct answer is: C) A large number of phages are released at a time
Lytic cycle of a bacteriophage is one of the two life cycles of viruses, other being lysogenic. Lytic cycle can be divided in stages:
• Attachment-viruses binds to the receptor on the surface of bacterial cell, usually it uses tail for the attachment
• Entrance-virus injects its genome material (DNA or RNA) into bacteria cell
• Replication and protein synthesis-virus uses mechanism of bacteria to replicate its genome and produce proteins. As a consequence, a huge number of new viruses are formed
• Lysis- viruses express protein for the bacterial lysis (bacterial cell expand and burst) and hundreds of new phages are released.
The answer to this question is B.
Answer:
D. all options are correct
Explanation:
- There is a trade-off between the size of gametes and the number of gametes.
- The larger the gamete, the less mobile it is
- The probability that a zygote survives increases with its size, and the size of the zygote is a function of the sizes of the fusing gametes
Provide sperm to fertilize the eggs in the female reproductive system.
