Natasha has schizophrenia. The probability that her young brother Boris develops schizophrenia too is about ________ times the general worldwide population risk.
A) 2
B) 4
C) 9
D) 12
C) 9
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The smallest branches of ____ end with a large flame cell
a. nephrons b. hepatic tubules c. metanephridia d. Malpighian tubules e. protonephridia
In a well-stratified lake, the thermocline refers to a steep and rapid decline in temperature relative to the waters above and below
Indicate whether the statement is true or false
Match the molecules below with their functions.
A. Main storage carbohydrate in animals B. The main component of plant cell walls C. Main storage carbohydrate in plants D. Main component of cell membranes E. Waterproofs biological structures F. Responsible for sexual development G. Precursor for important molecules such as bile salts H. Contains information to build a new cell I. Active role in protein synthesis
Altogether, the body secretes about 7 liters of water into the alimentary canal each day. About what percentage of this water gets reabsorbed?
A) 30% B) 50% C) 75% D) 90%