Line 1: *Cells are programmed to divide only a set number of times. Parts means something has been divided. Cells are programmed to split into parts only a set number of times.*
*(H)*
Line 2: *How many times can cells split into parts?
Options:
- (A) As many times as it likes
- (B) massive damage
- (C) No times
- (D) An infinite number of times
- (E) heat produced
- (F) during the day
- (G) Temperature changing
- (H) A set number of times*

Logic of a solution: *Chloroplasts are organelles that are found in the cells of plants and algae. Chloroplasts Chloroplasts serve as the site of photosynthesis. The site of photosynthesis in plant and algae cells is found within organelles.*
*(B)*
The original question: *Organells found in the cells of plants and algae enable many things, including:
Options:
- (A) movement
- (B) photosyntehsis
- (C) food and shelter
- (D) sugar
- (E) glucose
- (F) organic
- (G) Energy.
- (H) survival*

Line 1: *Carbon may be stored in sedimentary rock for millions of years. Limestone is a type of sedimentary rock. Carbon may be stored in limestone for millions of years.*
*(D)*
Line 2: *What element can be stored in limestone for millions of years?
Options:
- (A) oxygen
- (B) Energy
- (C) matter
- (D) carbon
- (E) sodium
- (F) helium
- (G) rock salt
- (H) heat*

Logic of a solution: *Sponges are a source of food for many species of fish. Fish and other marine animals abound here. Sponges are a source of food for many marine animals.*
*(C)*
The original question: *Marine animals find these to be a great source of food:
Options:
- (A) grain
- (B) nutrient
- (C) sponges
- (D) Energy.
- (E) sea vents
- (F) sodium
- (G) Energy
- (H) fungi*

Line 1: *Amphibians have a relatively complex circulatory system with a three-chambered heart. Frogs, toads and salamanders are amphibians. Frogs, toads and salamanders have a relatively complex circulatory system with a three-chambered heart.*
*(G)*
Line 2: *What sort of circulatory system do frogs, toads, and salamanders share?
Options:
- (A) live birth
- (B) It helps them survive
- (C) matter vibrating
- (D) two-chambered heart
- (E) Veins and arteries.
- (F) biological diversity
- (G) three-chambered heart
- (H) four-chambered heart*

Line 1: *Viruses are not cells at all, so they are neither prokaryotes nor eukaryotes. Viruses Viruses are the smallest agents of disease. The smallest agents of disease are not cells at all, so they are neither prokaryotes nor eukaryotes.*
*(C)*
Line 2:
*What are not cells at all, so they are neither prokaryotes nor eukaryotes?
Options:
- (A) Something with a head, thorax, and abdomen
- (B) Microscopic organisms
- (C) The smallest agent of disease
- (D) Dead prehistoric beings
- (E) female sex cells
- (F) major threat to health
- (G) remains of prehistoric life
- (H) Something that smells like rotten eggs*