Answer:
D) It held DNA
Explanation:
The nucleus controls and regulates the activities in a cell. It carries the genes or structures that contain the hereditary information. (DNA)
Answer:
It represents a partially permeable membrane
Explanation:
As the water is added to the teabag it causes the tea leaves to move and triggers diffusion of the leaves. ...
Zacharias Janssen was credited with inventing the microscope, however some say Hans Lippershey was the actual inventor as he patented the telescope, which has some similar properties.
Frequency- pitch
Wave length- pitch
Amplitude- pitch
Answer:
Smooth muscles
Explanation:
Smooth muscles are controlled by the autonomic nervous system that is responsible for involuntary movements that you do not have to think about. Smooth muscles are found in walls of hollow organs such as as your gastrointernal tract and blood vessels. They are responsible for peristalsis during digestion, internal muscle contractions when urinating and for pushing a baby during child-birth.