Ques and Ans: What obtain their food from plants and cannot make their own food?
Options:
- (A) bacteria
- (B) Flowers
- (C) trees
- (D) lichen
- (E) animals
- (F) fungi
- (G) humans
- (H) grass
(E)
Logic for the answer: Heterotrophs are living things that cannot make their own food. All animals are heterotrophic and obtain their food from plants. Animals obtain their food from plants and cannot make their own food.

Ques and Ans: In flowers, where do female gametophytes produce eggs?
Options:
- (A) fruit
- (B) ferns
- (C) plants
- (D) embryos
- (E) edible
- (F) seeds
- (G) bushes
- (H) orchids
(A)
Logic for the answer: Female gametophytes produce eggs inside the ovaries of flowers. Fruits develop from the ovary of the flower. Female gametophytes produce eggs inside the fruit of flowers.

Ques and Ans: How do male dogs mark their territory?
Options:
- (A) Chemical energy
- (B) Hot dog eating contest
- (C) Adequate signage
- (D) with their fur
- (E) Scent marker
- (F) heat produced
- (G) mate with females
- (H) Paint
(E)
Logic for the answer: Male dogs use pheromones in urine to mark their territory. During Urination Dog's urine is used as a scent marker for other dogs. Male dogs mark their territory with a scent marker.

Ques and Ans: Insulin is a hormone that helps absorb what from the blood?
Options:
- (A) hormones
- (B) blood cells
- (C) glucose
- (D) Energy
- (E) water
- (F) Energy.
- (G) Joules
- (H) hydration
(C)
Logic for the answer:
Insulin is a hormone that helps cells absorb sugar from the blood. Blood Sugar Glucose is sugar. Insulin is a hormone that helps cells absorb glucose from the blood.