bio rev quiz 22

A positive feedback loop

amplifies a move away from a set point.

Which of the following statements accurately describes similarities between asexual and sexual reproduction in animals?

Both processes generate offspring that carry parental genes.

Which of the following is an example of homeostasis in humans?

The muscles begin shivering on a cold, snowy day.

During blood clotting, a broken blood vessel triggers a cascade of factors that collectively reduce blood loss. In this example, the clotting factors are functioning as part of

a positive feedback loop

tissues

are composed of one or more cell types that perform a common function.

Which of the following methods of reproduction is NOT used by animals?

asexual reproduction involving sperm and eggs

Which organ system works with the respiratory system to deliver gases and the endocrine system to deliver hormones?

circulatory system

Which of the following is a collection of organs?

heart, lungs, and liver

The endocrine system plays a significant role in regulation in human systems. Among other responsibilities, the endocrine system signals appropriate and timely events in reproduction, growth, and development. Which of the following is a chemical that is responsible for controlling these events?

hormones

Which of the following is an example of a homeostatic mechanism that occurs in humans when in a warm environment?

increased blood flow to the skin

After about an hour of basking in the sun, the body temperature of the marine iguana reaches 37°C, and the animal dives into the water to feed. In the water, its body temperature rapidly drops, and the iguana must return to the rocks to warm up. This process is an example of

negative feedback

Regulation of your body temperature is primarily controlled by which system?

nervous

Which of the following components includes all of the others listed below?

organ system

For homework, your instructor asks you to write a paragraph discussing how the mouth, stomach, and small intestines work together to process food items and provide nutrients to the body. Which level of biological organization are you studying?

organ systems

Which of the following is a type of organ system?

skeletal

Which of the following is a type of epithelial tissue?

skin

Insulin is a protein hormone that helps cells use glucose. In type 1 diabetes, insulin-making cells in the pancreas are attacked and destroyed. This is an example of

the endocrine, digestive, circulatory, and immune systems affecting one another.

Which of the following is correct about homeostasis?

All living things must maintain homeostasis in order to survive.

How do living systems "know" the appropriate temperature or water content within that system?

Organisms have a genetically predetermined set point that must be internally maintained.

Which of the following statements accurately distinguishes tissues from organs?

Organs consist of multiple tissue types, whereas tissues consist of one or more cell types.