Problem: OPTIONS:
- density
- volume
- altitude
- temperature
Q: Answer the following question given this paragraph: There are 44 autosomes and 2 sex chromosomes in the human genome, for a total of 46 chromosomes (23 pairs). Sex chromosomes specify an organism's genetic sex. Humans can have two different sex chromosomes, one called X and the other Y. Normal females possess two X chromosomes and normal males one X and one Y. An autosome is any chromosome other than a sex chromosome. The Figure below shows a representation of the 24 different human chromosomes. Figure below shows a karyotype of the human genome. A karyotype depicts, usually in a photograph, the chromosomal complement of an individual, including the number of chromosomes and any large chromosomal abnormalities. Karyotypes use chromosomes from the metaphase stage of mitosis. Q: Ectotherms undergo a variety of changes at the cellular level to acclimatize to shifts in what? A:
Answer: temperature

Problem:OPTIONS:
- elevation
- equator
- magnitude
- latitude

Answer the following question given this paragraph: Latitude is the distance north or south of the Equator. It's measured in degrees, from 0 to 90. Several climate factors vary with latitude. Q: What is used to measure, in degrees, the distance north or south of the equater? A:
****
A: latitude

Answer the following question given this paragraph: Phospholipids As its name suggests, a phospholipid is a bond between the glycerol component of a lipid and a phosphorous molecule. In fact, phospholipids are similar in structure to triglycerides. However, instead of having three fatty acids, a phospholipid is generated from a diglyceride, a glycerol with just two fatty acid chains (Figure 2.23). The third binding site on the glycerol is taken up by the phosphate group, which in turn is attached to a polar "head" region of the molecule. Recall that triglycerides are nonpolar and hydrophobic. This still holds for the fatty acid portion of a phospholipid compound. However, the head of a phospholipid contains charges on the phosphate groups, as well as on the nitrogen atom. These charges make the phospholipid head hydrophilic. Therefore, phospholipids are said to have hydrophobic tails, containing the neutral fatty acids, and hydrophilic heads, containing the charged phosphate groups and nitrogen atom. Q: A phospholipid is a bond between the glycerol component of a lipid and what else? A:
OPTIONS:
- chlorine molecule
- elemental molecule
- oxygen molecule
- phosphorous molecule
phosphorous molecule

Answer the following question given this paragraph: A grain of pollen is a tiny male gametophyte enclosed in a tough capsule (see Figure below ). It carries sperm to an ovule while preventing it from drying out. Pollen grains can't swim, but they are very light, so the wind can carry them. Therefore, they can travel through air instead of water. Q: What can be described as a tiny male gametophyte enclosed in a tough capsule? A:
OPTIONS:
- seed
- cell
- dna
- grain of pollen

Answer: grain of pollen

Question: Answer the following question given this paragraph: Q: What can be switched off by a protein called the trp repressor? A:
OPTIONS:
- the cytokine
- the chaperone protein
- the genetic precursor
- the operon
Answer: the operon

input: OPTIONS:
- crystals
- eons
- toxins
- ions Now, answer this question: Answer the following question given this paragraph: In ordinary chemical reactions, the nucleus of each atom (and thus the identity of the element) remains unchanged. Electrons, however, can be added to atoms by transfer from other atoms, lost by transfer to other atoms, or shared with other atoms. The transfer and sharing of electrons among atoms govern the chemistry of the elements. During the formation of some compounds, atoms gain or lose electrons, and form electrically charged particles called ions (Figure 2.28). Q: When atoms gain or lose electrons, they can form electrically charged particles called what? A:
A:
output:
ions