Q: Answer the following question given this paragraph: Tracheal Systems Insect respiration is independent of its circulatory system; therefore, the blood does not play a direct role in oxygen transport. Insects have a highly specialized type of respiratory system called the tracheal system, which consists of a network of small tubes that carries oxygen to the entire body. The tracheal system is the most direct and efficient respiratory system in active animals. The tubes in the tracheal system are made of a polymeric material called chitin. Insect bodies have openings, called spiracles, along the thorax and abdomen. These openings connect to the tubular network, allowing oxygen to pass into the body (Figure 39.6) and regulating the diffusion of CO2 and water vapor. Air enters and leaves the tracheal system through the spiracles. Some insects can ventilate the tracheal system with body movements. Q: Insects have a highly specialized type of respiratory system called what? A:

OPTIONS:
- nasal system
- gland system
- grunion system
- tracheal system

A: tracheal system

input: OPTIONS:
- solutions
- microbes
- metals
- polymers Now, answer this question: Answer the following question given this paragraph: Polymers are a pervasive part of modern life. It is very likely that at least some part of your clothing is made of nylon, rayon, or polyester. The milk or juice that you have for breakfast often comes in a polyethylene container. If you don't have breakfast at home, you might get coffee from a fast food establishment, where your order is delivered to you in a Styrofoam®️ container. While getting out of your car, you bang the door on another vehicle. One reason you may not have dented the door is the fact that it could be made out of a polymeric plastic material that resists deformation more than simple metallic structures. Elsewhere on your car, both synthetic and natural rubber are probably present in the tires. All these materials are examples of organic polymers. Q: Synthetic and natural rubber, styrofoam and plastic are examples of organic what? A:
A:
output: polymers

Answer the following question given this paragraph: Most sedimentary rocks form from sediments. The sediments must be packed together to form a rock. Sedimentary rocks also form as minerals precipitate from saline water. Sedimentary rock formation is described in the next concept. Q: Most sedimentary rocks form from what? A:

OPTIONS:
- volcanic activity
- glaciers
- erosion
- sediments

Answer: sediments

Problem: OPTIONS:
- alkali
- magnets
- rocks
- amino acids
Q: Answer the following question given this paragraph: A peptide is composed of two or more amino acids. Amino acids are the building blocks of peptides. Q: What are the building blocks of peptides? A:
Answer: amino acids

Problem:OPTIONS:
- variation
- abundance
- deatn
- reproduction

Answer the following question given this paragraph: 45.2 Life Histories and Natural Selection All species have evolved a pattern of living, called a life history strategy, in which they partition energy for growth, maintenance, and reproduction. These patterns evolve through natural selection; they allow species to adapt to their environment to obtain the resources they need to successfully reproduce. There is an inverse relationship between fecundity and parental care. A species may reproduce early in life to ensure surviving to a reproductive age or reproduce later in life to become larger and healthier and better able to give parental care. A species may reproduce once (semelparity) or many times (iteroparity) in its life. Q: All species have evolved a pattern of living, called a life history strategy, in which they partition energy for growth, maintenance, and what? A:
****
A: reproduction

Problem:OPTIONS:
- cognitive rhythm
- auditory rhythm
- life cycle
- circadian rhythm

Answer the following question given this paragraph: Circadian rhythms are regular changes in biology or behavior that occur in a 24-hour cycle. In humans, for example, blood pressure and body temperature change in a regular way throughout each 24-hour day. Q: What are regular changes in biology or behavior that occur in a 24 hour cycle? A:
****
A:
circadian rhythm