<span>The plasma membrane is phospholipid bilayer. The layers are two and are continuous flat sheets. They have proteins and cholesterol embedded in them, for facilitating the transport of compounds and maintanng fluidity. The lipid bilayer is both hydrophobic and hydrophillic. </span>
Answer:
BOTONY:
any of the minute pores in the epidermis of the leaf or stem of a plant, forming a slit of variable width which allows movement of gases in and out of the intercellular spaces.
MEDICINE
:
an artificial opening made into a hollow organ, especially one on the surface of the body leading to the gut or trachea.
Explanation:
Levene proposed the polynucleic model, stating that DNA and DNA were composed of nucleotides.
Global warming is an issue to organisms or species because not all animals can adapt so certain living conditions. high human population growth rate drive further extinctions of plants and animals because humans need space to live so we cut down their habitats and they die. not all animals can adapt to certain living conditions.
Answer:
Each organism absorbs minerals produced by the other
Explanation:
Lichen is a symbiotic association between fungi and alga. The fungus is able to absorb essential mineral ions like calcium, phosphate and potassium better than the alga thus benefiting the alga. The fungus in return gets organic materials from the alga. The alga provides organic nutrients for the lichen through photosynthesis and the lichen provides protection from drying out because the alga lives within the fungus's cell wall.
