Answer:
There are two types of cell membranes. Either open or closed. Open is when other particles can get in or out. Closed is the opposite.
I hope that helps!
In meiosis , the no of chromosomes in the daughter cells reduces into half no of that in the initial cell :18
D westerlies
Because the west wind of flowing well west
Answer:
The answer is A
By the late 1830s, botanist Matthias Schleiden and zoologist Theodor Schwann were studying tissues and proposed the unified cell theory. The unified cell theory states that: all living things are composed of one or more cells; the cell is the basic unit of life; and new cells arise from existing cells.
Carbohydrates provide structural support, in the form of cellulose in cell walls, for plants in addition to providing energy for the organism
Proteins are essential for muscle tissue's growth and development as well as, in the form of hormones and hormonal regulation, maintaining an organism's homeostasis.
Lipids make up the bilayer of cell membranes, and also aid hormonal signaling.
Nucleic acids store genetic information, and allow for ribosomal protein synthesis.
