The total mass of organisms in an environmental stage is called what?
Options:
- (A) food pyramid
- (B) extinction
- (C) ecological pyramid
- (D) food chain
- (E) vegetation
- (F) food
- (G) ligt
- (H) biomass
--
Let's think first: Biomass is the total mass of organisms at a trophic level. Each stage is a trophic level. Biomass is the total mass of organisms in an environmental stage.... So the answer is [(H)]

Something that is primarily electrostatic in origin causes water to expand when it what?
Options:
- (A) heat
- (B) freezes
- (C) a hazard
- (D) boiling
- (E) moves
- (F) reacts
- (G) expelled
- (H) it's state
--
Let's think first: Hydrogen bonds cause water to expand when it freezes. Hydrogen bonds Hydrogen bonds are primarily electrostatic in origin. Something that is primarily electrostatic in origin causes water to expand when it freezes.... So the answer is [(B)]

What is the microscopic building block of any living being?
Options:
- (A) trees
- (B) cell
- (C) oxygen
- (D) moss
- (E) molecule
- (F) plants
- (G) blood
- (H) life
--
Let's think first: Cells are the microscopic building blocks of organisms. Any living being is an organism. Cells are the microscopic building blocks of living beings.... So the answer is [(B)]

Where do platypus females construct their homes for egg laying?
Options:
- (A) loose dirt
- (B) out in the open
- (C) loose soil
- (D) Summer
- (E) rocky areas
- (F) autumn
- (G) soft soil
- (H) compacted soil
--
Let's think first: Platypus females lay their eggs in a burrow. Burrows are constructed in soft soil. Platypus females lay their eggs in homes constructed in soft soil.... So the answer is [(G)]

What is still provided, whether the style is long or a mullet?
Options:
- (A) braids
- (B) it helps plants in growing
- (C) characteristics
- (D) insulation and protection
- (E) bowl cut
- (F) buzz cut
- (G) Mechanical energy
- (H) food and shelter
--
Let's think first: Hair helps to insulate and protect the body. Frankly, long hair is quite different to a mullet style. Whether worn long or as a mullet, there is still insulation and protection provided.... So the answer is [(D)]

What is produced by female flower parents in the ovaries?
Options:
- (A) seeds
- (B) pollen
- (C) sugar
- (D) abcess
- (E) honey
- (F) H 2 O
- (G) eggs
- (H) nectar
--
Let's think first: Female gametophytes produce eggs inside the ovaries of flowers. Gametophytes are the parent of the baby fern. Female flower parents produce eggs inside the ovaries of flowers.... So the answer is [(G)]