The following are ductless glands except
adrenal
pancreatic
parathyroid
salivary
Correct answer is D
Salivary glands are found in the mouth, which secretes a juice called saliva that contains an enzyme called ptyalin.
The vector that transmits trypanosomes is the
butterfly
housefly
mosquito
tsetse fly
Correct answer is D
The tsetse fly is the vector that transmits the trypanosomes that cause trypanosomiasis or sleeping sickness.
The following are examples of a true fruit, except
mango
oil palm
orange
pineapple
Correct answer is D
Options A, B, and C are incorrect because they are all true fruits (i.e. fruits that develop from a fertilized ovary).
Option D is correct because a pineapple is a false fruit (a fruit developed or formed from the ovary and other floral parts of the plant or fruit flowers).
One of the following is the unit of life
cell
tissues
organ
system
Correct answer is A
The cell is the basic structural and functional unit of life.
Deoxygenated blood is transported to the lungs through the
renal vein
hepatic portal vein
pulmonary artery
pulmonary vein
Correct answer is C
Deoxygenated blood is transported from the heart to the lungs through the pulmonary artery for carbon dioxide to be removed.