Animal cells have plasma membrane while plant cells have
cell wall and cell membrane.
A plant cell has 1 large vacuole while an animal cell has
more than 1 vacuole which is smaller compared to the vacuoles of a plant cell.
The vacuole of a plant cell is hypertonic because it takes up to 90% of the
cells volume.
A plant cell has chlorophyll or chloroplasts (which gives
colors to plants), animal cells does not have chloroplasts.
Cell division is also called mitosis (this term is used for
both animal and plant cells, no difference on that). For plant cells,
centrifugal division occurs, its starts in the middle going outwards creating
the cell plate. For animal cells, division is centripetal that it comes from
the outside going toward the center and that is called the cleavage furrow.
Answer:
why an athlete would need to be concerned about twitches or contractions is because, whenever they perform, and such thing happens, it will most likely distract the athlete, and cause the athlete doing his/her performance to not be as good, and may lead to failure, for example, when someone is running very fast for a sprinting race, and he has a contraction in his leg it will cause him to react by showing signs of pain by slowing down or even tripping and falling, causing him to lose the race.
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The nucleus contains most of the genetic material, or DNA, of the cell.
The limbic cortex. Another area called the precuneus also plays a role.
Answer:
The muscle has two, three, or four origins, respectively.
Explanation
- A muscle is an organ composed of muscle tissue that contract to facilitate a particular movement
- biceps,triceps and quadriceps are types of skeletal muscles since they use bones as levers
- <em><u>They differ in that; the biceps have two origins, triceps have three origins and quadriceps have four origin.</u></em>
- <em><u>Bicep is a two headed muscle thus said to have two origins ,triceps have three muscle heads and therefore have three separate origin attachment point while quadriceps are made of four muscles heads hence have four origins. </u></em>
