Why is cartilage important in sharks, rays, and skates?
A) it works as a respiratory structure
B) it circulates blood flow
C) it supports and gives structure
D) it helps with digestion
Ans: C) it supports and gives structure
You might also like to view...
Potassium deficiency in plants occurs when plants grow on light, sandy soils and cannot obtain enough potassium ions. Such plants are deficient in: (check all that apply)
_____ an essential element. _____ a macronutrient. _____ a micronutrient. _____ a limiting factor.
One would expect the concentration of sugar in __________ to be greater than in
__________.
a. leaves; roots b. root; leaves c. flowers; leaves d. The concentration of sugar would be the same in all parts of the plant.
Which of the following female organisms do
NOT contain XX chromosomes?
a. humans b. fruit flies c. cows d. butterflies e. cats
Viruses always lack which of the following?
a. A plasma membrane b. Genetic material c. A protein coat d. Organelles