Questions with Reliable Solutions
Glands are derived from - Answer epithelial tissue
Cells joined tightly together are characteristic of - Answer Epithelial tissue
Cells are separated by large extracellular space is in - Answer Connective tissue
Blood vessels and nerves are usually located within - Answer Muscle tissue
Most organs are composed of - Answer Epithelial, muscle, and connective tissues
Sweat is secreted by exocrine glands. This means that - Answer it is secreted into a duct
Which of these statements about homeostasis is true? - Answer Negative feedback mechanisms act to
correct deviations from a normal range within the internal environment
In a negative feedback loop, the effector produces changes that are - Answer Opposite indirection to the
change produced by the initial stimulus
A hormone called parathyroid hormone tasked to help raise the blood calcium concentration. According
to the principles of negative feedback, and effective stimulus for parathyroid hormone secretion would
be - Answer A fall in blood calcium
Which of these consists of dense parallel arrangements of collagen fibers?
A) skeletal muscle tissue
B) nerve tissue
C) tendons
D) dermis of the skin - Answer Tendons
, The act of breathing raises the blood oxygen level, lowers the blood carbon dioxide concentration, and
raises blood pH. According to the principles of negative feedback, sensors that regulate breathing should
respond to - Answer A rise in blood carbon dioxide concentration
Adult stem cells, such as those in the bone marrow, brain, or hair follicles can best be described as
____________, whereas embryonic stem cells are described as ____________. - Answer multipotent;
pluripotent
Which of these statements about atoms is true? - Answer They are electrically neutral
The bond between oxygen and hydrogen and a water molecule is - Answer A polar covalent bond
Which of these is a non-polar covalent bond?
A) A bond between two carbons
B) A bond between sodium and chloride
C) A bond between two water molecules
D) A bond between nitrogen and hydrogen - Answer A bond between two carbons
Solution A has a pH of 2, and solution B has a pH of 10. Which of these statements about these solutions
is true?
A) solution A has a higher hydrogen concentration than solution B.
B) Solution B is Basic.
C) Solution A is Acidic.
D) All of these are true - Answer All of these are true
Glucose is - Answer A monosaccharide
Digestion occurs by means of - Answer Hydrolysis