Its c, her father is nearsighted and wears concave lenses to correct it.
It should be noted that a cell simply means the basic building block of living things and the human body has million of cells.
<h3>
What Is A Cell?</h3>
Your information is incomplete. Therefore, an overview of cells will be given. Cells provide the structure for the body and take in nutrients that are used to perform specialized functions in the body.
A cell can also be defined as the smallest unit of an organism that has a nucleus. It should be noted that the size of a cell can be measured by using an eyepiece graticule.
Learn more about cells on:
brainly.com/question/3717876
Answer:
A) actin and myosin is a correct answer.
Explanation:
- Myofibrils are the contractile fiber and they are made of actin and myosin.
- Myofibrils are made of thick myofilaments and thin myofilaments.
- Thick myofilaments are made up of myosin whereas thin myofilaments are composed of actin.
- The functional unit of muscle is Myofibrils and contraction of muscle occurs due to myofibril, when the filaments actin and myosin interact with each other.
Thus Myofibrils are made primarily of (A) actin and myosin.
Volume is the amount of space that a substance or object occupies while in a enclosed space. The units used are millimeters.
Answer:
mutation in DNA
Explanation:
Mutations are changes in the genetic code that can occur in many ways. Each time a cell divides, say, DNA must be copied into two copies, one copy for each new cell. Although this copying is very precise, it is still not perfect - for about every billion accurately copied databases, one is mistranslated.
Another source is DNA damage, which can occur spontaneously through the normal life of the cell, or through external toxins or negative influences (ultraviolet radiation, for example). Through evolution, cells have developed a very complex system for repairing changes in DNA, but these systems not only have limitations but can sometimes cause additional errors themselves.
