What response are antibodies involved in?
Options:
- (A) resistance activities
- (B) the pituitary response
- (C) major threat to health
- (D) antigens summoning them
- (E) Leptospirosis
- (F) being taken as a supplement
- (G) resistance
- (H) the immune response
--
Let's think first: Lymphocytes are the key cells involved in the immune response. Antibodies are synthesised by lymphocytes. Antibodies are involved in the immune response.... So the answer is [(H)]

Which has specialized reproductive organs?
Options:
- (A) Clouds
- (B) Conifers
- (C) River
- (D) peachleaf willow
- (E) Venus flytrap
- (F) animals
- (G) mammals
- (H) Mountain
--
Let's think first: Plants have specialized reproductive organs. Most people know that the Venus Flytrap is a carnivorous plant. The Venus Flytrap has specialized reproductive organs.... So the answer is [(E)]

What is a producer in terrestrial biomes?
Options:
- (A) food
- (B) Oak
- (C) mammals
- (D) flowers
- (E) earth
- (F) grass
- (G) Trees
- (H) mushrooms
--
Let's think first: Plants are the major producers in terrestrial biomes. Grasses are very distinctive plants. Grass is a producer in terrestrial biomes.... So the answer is [(F)]

What stimulates the pituitary gland in order to maintain structural integrity of the thyroid?
Options:
- (A) TRH
- (B) Urea
- (C) CO 2
- (D) PDAs
- (E) HPV
- (F) SO2
- (G) mL
- (H) p53
--
Let's think first: TRH stimulates the pituitary gland to produce thyroid-stimulating hormone, or TSH. Another function of TSH is to maintain the structural integrity of the thyroid gland. TRH stimulates the pituitary gland to maintain structural integrity of the thyroid.... So the answer is [(A)]

What do plants build their cell walls from?
Options:
- (A) By wind and rain
- (B) Deposition
- (C) Deposition.
- (D) algae
- (E) Chemical energy
- (F) plant wall
- (G) plant material
- (H) polysaccharides
--
Let's think first: Plants use cellulose for their cell walls. Another important polysaccharide is cellulose. Plants use a polysaccharide for their cell walls.... So the answer is [(H)]

What is rain that absorbs into the earth called?
Options:
- (A) aqueous solution
- (B) heat energy
- (C) soilwater
- (D) groundwater
- (E) peachleaf willow
- (F) mud
- (G) puddle
- (H) water vapor
--
Let's think first: Some precipitation that falls on land may soak into the ground, becoming groundwater. Rain is also known as precipitation. Rain that falls on land may soak into the ground and become groundwater.... So the answer is [(D)]