Which of the following is NOT a waste product of plants?
Tannins
Oxygen
Carbondioxide
Sap
Correct answer is D
Plants need to excrete excess carbon dioxide and oxygen. Carbon dioxide is a waste product of aerobic respiration in plant cells. Oxygen is a waste product of photosynthesis. Also, Extracts from plants contains toxic alkaloids.
Which of the following statements is not true of a fish?
respires using gills
covered with scales
they are homeothermic
they are poikilothermic
Correct answer is C
No explanation has been provided for this answer.
Hormones that help regulate blood calcium levels are produced by the
Adrenal
thyroid
pancreas
parathyroid
Correct answer is D
No explanation has been provided for this answer.
The part of the cell that is responsible for the production of energy is
cell membrane
cytoplasm
mitochondrion
nucleus
Correct answer is C
No explanation has been provided for this answer.
The following are examples of oviparous animals except
crocodile
dove
rat
tilapia
Correct answer is C
No explanation has been provided for this answer.