The oily substance that lubricates the mammalian hair to keep it flexible and water repellent is secreted by the
sweet glands
sebaceous glands
fatty cells
granular layer
The outer layer of the kidney where the Bowman's capsules are found is the
cortex
pelvis
medulla
pyramid
Which of the following stimuli is likely to elicit a nastic response in an organism?
Touch
Light intensity
Chemical substances
Gravity
In the male reproductive system of a mammal, sperm is stored in the
van deferens
urethra
epididymis
seminiferous tubules
Chemosynthetic organisms are capable of manufacturing their food from simple inorganic substances through the process of
oxidation
denitrification
reduction
phosphorylation
