DNA replication needs to occur because existing cells divide to produce new cells. the DNA needs to be copied before cell division so that each new cell receives a full set of instructions
Answer:
The correct answer will be
1. Striated
2. Multiple
3. Broken down
4. Tendon
Explanation:
Skeletal muscles are the voluntary muscles found in the human body.
These muscles are made up of muscle fibers or muscle cells which look striated in appearance with many peripheral nuclei. The muscle helps in the locomotion of the body through controlled actions which help in the multiple types of movement.
The muscle moves when it receives impulse signals from the CNS which leads to the utilization of the ATP, the ATP is broken down which helps in the contraction of the muscle. The muscle is connected to the bone via a connective tissue called tendon, as the muscle contracts, it moves the tendon which helps in the locomotion.
Thus, the marked answers are the correct options.
Answer:
SA Node
Inter-nodal Pathways
AV Node
AV Bundle
Bundle Branches
Purkinje Fibers
The SA nodes functions first for setting pace for the heart, then the inter-nodal pathway make link b/w SA and AV node. AV node is site of delay when contraction of atria occurs. AV bundle is the mean of electrical link b/w atria and ventricle. The conveying of impulse to the inter-ventricular septum occurs through bundle branches, while conveying of impulse throughout and along the walls of ventricle occurs through Purkinje fibers.
Answer:
a) During metaphase, each of the 46 chromosomes line up along the center of the cell at the metaphase plate.
