The function of the fluid-filled pericadium is to
reduce the friction caused by the pumping movements of the heart
supply the heart with organisms from attacking the heart
prevent disease causing organisms from attacking the heart
reduce the intensity of the pumping
Correct answer is A
No explanation has been provided for this answer.
The only vein that carriers pure oxygenated blood is the
renal vein
pulmonary vein
hepatic vein
sciatic vein
Correct answer is B
No explanation has been provided for this answer.
In the root vascular system, the stele is directly surrounded by the
pericycle
cortex
endodermis
parenchyma
Correct answer is A
No explanation has been provided for this answer.
The main function of the caudal fin in Tilapia is to
propel it forward in water
steer it while changing direction
balance it in water
enable it to float in water
Correct answer is A
No explanation has been provided for this answer.
collar bones and coccyx
pectoral and pelvic girdles
scapulae and clavicles
vertebrae and sternum
Correct answer is B
No explanation has been provided for this answer.