Q: Answer the following question given this paragraph: Positive Feedback Positive feedback intensifies a change in the body's physiological condition rather than reversing it. A deviation from the normal range results in more change, and the system moves farther away from the normal range. Positive feedback in the body is normal only when there is a definite end point. Childbirth and the body's response to blood loss are two examples of positive feedback loops that are normal but are activated only when needed. Childbirth at full term is an example of a situation in which the maintenance of the existing body state is not desired. Enormous changes in the mother's body are required to expel the baby at the end of pregnancy. And the events of childbirth, once begun, must progress rapidly to a conclusion or the life of the mother and the baby are at risk. The extreme muscular work of labor and delivery are the result of a positive feedback system (Figure 1.11). Q: What type of feedback intensifies a change in the body's physiological condition rather than reversing it? A:

OPTIONS:
- negative feedback
- neutral feedback
- susceptible feedback
- positive feedback

A: positive feedback

input: OPTIONS:
- an enzyme
- a method
- a form
- a gene Now, answer this question: Answer the following question given this paragraph: The polymerase chain reaction is a way of making copies of a gene. It uses high temperatures and an enzyme to make new DNA molecules. The process keeps cycling to make many copies of a gene. Q: The polymerase chain reaction is a way of making copies of what? A:
A:
output: a gene

Answer the following question given this paragraph: Mammals may be herbivores, carnivores, or omnivores. Some carnivore mammals eat mainly insects and are called insectivores. Some omnivore mammals eat mainly fruits and are called frugivores. Q: What do you call a carnivore that eats mainly insects? A:

OPTIONS:
- pescatorian
- predator
- omnivores
- insectivores

Answer: insectivores

Problem: OPTIONS:
- sound
- light
- dust
- radiation
Q: Answer the following question given this paragraph: Visible light is only a small part of the electromagnetic spectrum. There are parts of the electromagnetic spectrum that humans cannot see. This radiation exists all around you. You just can't see it! Every star, including our Sun, emits radiation of many wavelengths. Astronomers can learn a lot from studying the details of the spectrum of radiation from a star. Q: What does every star emit that humans cannot see? A:
Answer: radiation

Problem:OPTIONS:
- vertebrates
- mites
- Diatoms
- protozoa

Answer the following question given this paragraph: Protozoa generally feed by engulfing and digesting other organisms. As consumers, they have various roles in food chains and webs. Some are predators. They prey upon other single-celled organisms, such as bacteria. In fact, protozoa predators keep many bacterial populations in check. Other protozoa are herbivores. They graze on algae. Still others are decomposers. They consume dead organic matter. There are also parasitic protozoa that live in or on living hosts. For example, the protozoan that causes malaria lives inside a human host. For their part, protozoa are important food sources for many larger organisms, including insects and worms. Q: What single-celled organism can be either a predator, decomposer, herbivore, or parasite in the food chain? A:
****
A: protozoa

Problem:OPTIONS:
- modulators
- mitosis
- nanoparticles
- endocytosis

Answer the following question given this paragraph: Q: Phagocytosis, pinocytosis, and receptor-mediated endocytosis are the three types of what? A:
****
A:
endocytosis