Answer:
2B
4E
3C
1D
Explanation:
This is the answers, a plant cell has chloroplast and mitochondria because is autotrophic(makes food)
The correct answer is: Prions are proteins that are folded incorrectly.
These misfolded proteins have abnormal 3D structure but the cause is not clearly known. They aggregate in tissue and cause it damage and cell death. Prion aggregates are stable, meaning that are resistant to denaturation by chemical and physical agents.
Prions cause neurodegenerative diseases such as Creutzfeldt–Jakob disease (fatal degenerative brain disorder) or Gerstmann–Sträussler–Scheinker syndrome (also fatal).
Municipal waste is the waste generated by <u>Industries</u><u> </u>and commercial enterprises, such as markets and hotels. An example of municipal waste is <u>Solid</u><u> </u><u>waste</u><u>.</u>
Prions is a disease and are a family of rare progressive neurodegenerative disorders that affect both humans and animals.
When sarcomeres shorten, the muscle fiber SHORTENS.
Mechanism :
Sacromeres are used to construct the myofibrils, which are a part of the skeletal muscles of animals. They use the sliding filament model to carry out the muscle contraction and relaxation.
To create movement, The cross-bridge between actin and the myosin heads causes the sacromere to shorten. Muscle fibers contract as a result of this shortening of the sacromere, which has the overall effect of shortening the fibers.
To learn more about myofibril refer : brainly.com/question/15461128
#SPJ4