Answer:
A
Lipids are water soluble fatty acids that are the primary component of cell walls; they regulate water uptake by the cell because they form carbon chains.
B
Lipids are water insoluble fatty acids and the are the primary component of cell walls; they protect the cell and help maintain its shape because they form carbon rings.
C
Carbohydrates like cellulose and chitin are the primary component of cell walls; they repel and prevent excess uptake of water because they form rigid linear carbon chains.
D
Carbohydrates like cellulose and chitin are the primary component of cell walls; they protect the cell and help maintain its shape because they form chains of rigid carbon rings.
The answer is the third one
A with T: the purine adenine (A) always pairs with the pyrimidine thymine (T)
C with G: the pyrimidine cytosine (C) always pairs with the purine guanine (G)
Mendel called a trait that seemed to disappear in the first generation (f1) a recessive trait.
Answer:
B) they are the starting materials for cellular respiration
