What do the vitamins biotin and Vitamin K have in common?
A) They are both water-soluble vitamins.
B) They are both obtained from meat.
C) They are both produced by intestinal bacteria.
D) They are both common deficiencies in the human diet.
C
You might also like to view...
What fraction of the nucleotides in a double-stranded DNA molecule are cytosine and thymine (% C and % T added together)?
A) 25 % B) 50 % C) 75 % D) 100% E) It depends on the DNA sequence
A student noticed that every time he smelled a certain perfume in the hallway, it reminded him of his mother. This is due largely to the activity of the limbic system
Indicate whether the statement is true or false
Trophic efficiency is _____
A) the ratio of net secondary production to assimilation of primary production B) the percentage of production transferred from one trophic level to the next C) a measure of how nutrients are cycled from one trophic level to the next D) usually greater than production efficiencies E) about 90% in most ecosystems
Even though bacteria lack membrane-bound organelles, such as chloroplasts and mitochondria, they
can still perform the functions of these organelles by localizing certain metabolic enzymes on: a. the nuclear membranes. b. the endoplasmic reticulum. c. the plasma membrane. d. ribosomes. e. the cell wall.