Answer:
The correct answer will be-Orbicularis oris muscle
Explanation:
The muscle which is present in the mouth is known as the oribicularis oris which consists of various muscular fibres in a different direction.
The oris muscle is derived from the other facial muscles inserted into the lips and join with the lips controlling the movement of the lips.
The muscle controls the movement by pulling down the corners of the mouth and the lips along with other muscles like the mentalis, the triangularis and the risorius.
Thus, Orbicularis oris muscle is the correct answer.
Answer:
A. Actin filaments and microtubules
B. intermediate filaments
Explanation:
Actin filaments and microtubules are two major building blocks that form part of the cytoskeleton in all eukaryotic cells. Both actin filaments and microtubules play a fundamental role in the dynamics of the cytoskeleton, and they are involved in many essential cellular processes including, among others, mitosis, cytokinesis, intracellular transport, cell signaling, etc. Moreover, intermediate filaments are very stable structures found in animal cells, where they extend from a ring around the cell nucleus to the plasma membrane in order to provide consistency and shape to the nuclear envelope.
Answer: Well I don't know it depends
Explanation:
<em><u>Nitrogen</u></em><em><u> </u></em><em><u>is</u></em><em><u> </u></em><em><u>not</u></em><em><u> </u></em><em><u>a</u></em><em><u> </u></em><em><u>product</u></em><em><u> </u></em><em><u>of</u></em><em><u> </u></em><em><u>photosynthesis</u></em>
I think the cytoskeletal protein that helps a cell maintain its shape is actin.
