Q: Answer the following question given this paragraph: High-decibel sounds can damage the ears and cause loss of hearing. Which sounds in the graph are dangerously loud?. Q: High decibel sounds can damage your? A:

OPTIONS:
- nose
- eyes
- brain
- ears

A: ears

input: OPTIONS:
- limbic system
- endoderm
- mitochondria
- notochord Now, answer this question: Answer the following question given this paragraph: Another major step in animal evolution was the evolution of a notochord. A notochord is a rigid rod that runs the length of the body. It supports the body and gives it shape (see Figure below ). It also provides a place for muscles to anchor, and counterbalances them when they contract. Animals with a notochord are called chordates. They also have a hollow nerve cord that runs along the top of the body. Gill slits and a tail are two other chordate features. Many modern chordates have some of these structures only as embryos. Q: A major step in animal evolution was the evolution of what rigid rod that runs the length of the body? A:
A:
output: notochord

Answer the following question given this paragraph: Cycle of Sexual Reproduction. Sexual reproduction involves the production of haploid gametes by meiosis. This is followed by fertilization and the formation of a diploid zygote. The number of chromosomes in a gamete is represented by the letter n. Why does the zygote have 2n, or twice as many, chromosomes?. Q: Sexual reproduction involves the production of haploid gametes by what? A:

OPTIONS:
- lesions
- mutations
- mitosis
- meiosis

Answer: meiosis

Problem: OPTIONS:
- chromosomes
- molecules
- droplets
- platelets
Q: Answer the following question given this paragraph: Platelets and Coagulation Factors Blood must clot to heal wounds and prevent excess blood loss. Small cell fragments called platelets (thrombocytes) are attracted to the wound site where they adhere by extending many projections and releasing their contents. These contents activate other platelets and also interact with other coagulation factors, which convert fibrinogen, a water-soluble protein present in blood serum into fibrin (a non-water soluble protein), causing the blood to clot. Many of the clotting factors require vitamin K to work, and vitamin K deficiency can lead to problems with blood clotting. Many platelets converge and stick together at the wound site forming a platelet plug (also called a fibrin clot), as illustrated in Figure 40.8b. The plug or clot lasts for a number of days and stops the loss of blood. Platelets are formed from the disintegration of larger cells called megakaryocytes, like that shown in Figure 40.8a. For each megakaryocyte, 20003000 platelets are formed with 150,000 to 400,000 platelets present in each cubic millimeter of blood. Each platelet is disc shaped and 24 m in diameter. They contain many small vesicles but do not contain a nucleus. Q: Thrombocytes are more commonly known by what name? A:
Answer: platelets

Problem:OPTIONS:
- tissues
- proteins
- metabolytes
- lipids

Answer the following question given this paragraph: A lipid is an organic compound such as fat or oil. Organisms use lipids to store energy, but lipids have other important roles as well. Lipids consist of repeating units called fatty acids. Fatty acids are organic compounds that have the general formula CH 3 (CH 2 ) n COOH, where n usually ranges from 2 to 28 and is always an even number. There are two types of fatty acids: saturated fatty acids and unsaturated fatty acids. Q: What do organisms use to store energy? A:
****
A: lipids

Problem:OPTIONS:
- greater pressure
- greater density
- higher temperature
- lower density

Answer the following question given this paragraph: The warm-air vent is placed near the floor of the room. Warm air is less dense than cold air so it rises. If the warm-air vent were placed near the ceiling instead, how would this affect the transfer of thermal energy throughout the room?. Q: What property of warm air causes it to rise above cold air? A:
****
A:
lower density