The production of chlorophyll molecules requires most plants to obtain __________ from the
soil.
a. calcium
b. magnesium
c. nitrogen
d. potassium
C
You might also like to view...
Breathing is primarily regulated by _____
A) erythropoietin levels in the blood B) the concentration of red blood cells C) hemoglobin levels in the blood D) carbon dioxide concentration and pH-level sensors E) the lungs and the larynx
The diaphragm is a sheet-like skeletal muscle that separates the
(a) thoracic and pleural cavities. (b) thoracic and pericardial cavities. (c) thoracic and abdominopelvic cavities. (d) pleural and pericardial cavities.
How small is the smallest object that can be observed using a transmission electron microscope?
a. 2 µm b. 0.2 µm c. 2 nm d. 0.2 nm
what digestive organ produces and secretes bile, regulates blood glucose by producing or breaking down glycogen, converts amino acid group from excess amino acids to urea, stores iron and certain vitamins
What will be an ideal response?