D. Cell membranes are generally semi-permeable, which means that they allow some materials in (the ones they need to function) and out. Membranes also block materials that the cell doesn’t want or need from entering. Homeostasis essentially means “sweet spot” (not literally just a way to remember it). Hope this helps!
D. Ponds and lakes
Explanation:
Limnetic zone is the water area zone where light does not penetrate the bottom as the depth of the water is more towards the center whereas littoral zone is the zone near shore area which is shallow and where plants grow and sunlight penetrates all way in this area. Littoral zone surrounds the limnetic zone in the lake and ponds because the rest of the water bodies mentioned in the question have free flowing water.
Answer:
Option B, Tinea capitis
Explanation:
Superficial fungal infection of skin of head or scalp is known as Tinea capitis.
These fungal infection attack the hair shafts and follicles and is a superficial form of mycosis or dermatophytosis.
Tinea cruris is the superficial infection of genitals, buttocks and inner thighs regions. Hence, option A is incorrect.
Tinea pedis is the superficial infection of foot and regions between the phalanges. Hence, option C is incorrect.
Tinea corporis is the superficial infection of arms, legs or skin. Hence, option D is incorrect.
Thus, option B is correct.
Explanation:
PLEASE express yourself in English
How do the strands separate during PCR? The DNA polymerase breaks the hydrogen bonds between the two strands. The primers separate the strands during the annealing step. The high heat of the denaturation step breaks the hydrogen bonds between the two strands.