Answer: This brightly colored trait in this scenario is an example of natural selection
Explanation:
The aim of natural selection is to ensure the traits that make species better fitted to environmental pressures remain while other are eliminated.
Thus, the brightly colored trait in this scenario is an example of natural selection because:
- it appears in all population of the flower-producing plants making it well adapted to the environment.
- its emitting of no odor or rotting odor is simply a chemical defence mechanism in order to avoid from eaten by animals.
Answer:
B) mitochondria and chloroplasts
Explanation:
Answer:
Contraction.
Explanation:
Muscle tissues are defined as they are elastic and extensible in nature. In other words it's also defined as they are able to stretched and returned to its original size and shapes. A unique feature of muscle tissue is they are able of contractile in nature. With the help of this contraction they are able to sliding myosin and actin filaments which are present in muscles tissues.
Basically muscle tissues are three types:
1) Skeletal muscle: They are strong and rapid in contraction.
2) Cardiac muscle: They are strong in contraction.
3) Smooth muscle tissues: They are slow and weak in contraction.
Answer:
is primarily responsible for a movement
Explanation:
Working muscles are called agonists or prime movers because to complete a movement they produce major force. These muscles are primarily responsible for the occurrence of a movement. By contracting they make a range of motion for example during the up phase of push up the triceps brachii contracts which produce a shortening contraction.
The muscles that oppose the action of agonists are called antagonists. So antagonists are responsible for the returning of arm or leg in its original position. So the correct answer is- is primarily responsible for a movement.
