Answer the following question given this paragraph: Q: What do you call the membrane-bounded droplets that have some properties of cells? A:
OPTIONS:
- rods
- membranes.
- sporozoans
- protocells
protocells

Answer the following question given this paragraph: Did you ever see workers sandblasting a building to clean it? Sand is blown onto the surface to scour away dirt and debris. Wind-blown sand has the same effect. It scours and polishes rocks and other surfaces. Wind-blown sand may carve rocks into interesting shapes ( Figure below ). This form of erosion is called abrasion. It occurs any time rough sediments are blown or dragged over surfaces. Can you think of other ways abrasion might occur?. Q: Sandblasting a surface exemplifies what form of erosion? A:
OPTIONS:
- wind
- glacial
- water
- abrasion

Answer: abrasion

Question: Answer the following question given this paragraph: Overview of Transcription. Transcription uses the sequence of bases in a strand of DNA to make a complementary strand of mRNA. Triplets are groups of three successive nucleotide bases in DNA. Codons are complementary groups of bases in mRNA. Q: What is the term for groups of three successive nucleotide bases in dna? A:
OPTIONS:
- triads
- tertiary bases
- triple play
- triplets
Answer: triplets

input with options: Answer the following question given this paragraph: Two factors influence the pressure of fluids. They are the depth of the fluid and its density. Q: What two factors influence the pressure of fluids? A:
OPTIONS:
- depth and gravity
- time and temperature
- temperature and density
- depth and density
output: depth and density

Q: Answer the following question given this paragraph: Sexual reproduction involves two parents. As you can see from Figure below , in sexual reproduction, parents produce reproductive cellscalled gametes that unite to form an offspring. Gametes are haploid cells. This means they contain only half the number of chromosomes found in other cells of the organism. Gametes are produced by a type of cell division called meiosis, which is described in detail below. The process in which two gametes unite is called fertilization . The fertilized cell that results is referred to as a zygote . A zygote is diploid cell, which means that it has twice the number of chromosomes as a gamete. Q: What type of cell division produces gametes? A:

OPTIONS:
- mutations
- apoptosis
- mitosis
- meiosis

A: meiosis

Answer the following question given this paragraph: Earth is hottest at the equator and gets cooler toward the poles. The differences in heating create huge convection currents in the troposphere. At the equator, for example, warm air rises up to the tropopause. It can't rise any higher, so it flows north or south. Q: When warm air rises up to the tropopause, where does it flow? A:
OPTIONS:
- east or north
- west or south
- east or west
- north or south
north or south