The best answer is C.
Plasma membranes are mainy made up of lipids and proteins. The lipids are glycerophospholipid, molecules composed of glycerol, a phosphate group and two fatty acid chains. Glycerol is a three-carbon molecule that functions as a backbone of these membrane lipids.
Within each glycerophospholipid, fatty acids are attached to the first and second carbon, while the phophate group is attached to the third carbon of the glycerol backbone.
Proteins such as glycoprotein are attched to the glycerophospholipids in the cell membrane. They are used for cell recognition and also act as receptors and antigens.
Answer:
I also dont know biology. sorry
Explanation:
I am at 8th grade
In both cases, the detection of periodic variation in the environment results in a reproductive cycle timed to environmental conditions that optimize the opportunity for success.
<h3>What is lunar-linked rhythm ?</h3>
Seashore plants and animals are subjected to a rhythmic change by the lunar tidal rhythm, which is the regular ebb and flow of oceans and very large inland bodies of water. Typically, two high and two low tides occur each day (about 24.8 hours).
- Circadian rhythms provide a crucial function by preparing your body for impending environmental changes including, for instance, the best times to be active, sleep, and eat. The sun's light/dark cycle is the most powerful external stimulus.
Learn more about Circadian rhythm here:
brainly.com/question/10249604
#SPJ4
1- earth
2-Saturn
3-Uranus
4-Pluto
<span>This type of cognitive development indicates spatial relationships. The toddler can tell the difference between the objects shapes and understands smaller ones fit inside larger ones. This indicates his awareness to their spatial relationships, their size and shape difference.</span>