Q&A Hero

Q: Structures of the skeletal system include all of the following except: A) bone. B) cartilage. C) nails. D) ligaments.

Q: Glands found primarily in the groin and armpit areas are the: A) sebaceous glands. B) merocrine sweat glands. C) apocrine glands. D) endocrine glands.

Q: Hair color (or lack of it) is mostly due to: A) activity of melanocytes. B) a colored version of keratin. C) sebaceous gland pigments. D) sweat gland pigments.

Q: A paper cut that draws blood must have cut down into at least which layer of the skin? A) subcutaneous layer B) dermis C) adipose layer D) epidermis

Q: The inner layer of the skin, the dermis, is mostly: A) epithelial tissue. B) muscle tissue. C) connective tissue. D) keratin. E) nervous tissue.

Q: Keratinized cells near the surface of the epidermis are: A) found in a single layer. B) mostly dead and water resistant. C) about one month old. D) derived from nervous tissue.

Q: Acne is caused by problems with the: A) sweat glands. B) endocrine glands. C) sebaceous glands. D) hair follicles.

Q: Structures such as hair and nails are part of the: A) skeletal system. B) integumentary system. C) endocrine system. D) muscular system. E) lymphatic system.

Q: Which human body system includes lymphatic organs of the lymphatic network, such as the tonsils and lymph notes? A) nervous B) cardiovascular C) urinary D) endocrine E) immune

Q: Which human body system would be best described as playing roles in both waste disposal and conservation? A) cardiovascular B) nervous C) urinary D) lymphatic E) respiratory

Q: Which of the following systems are involved in bringing nutrients into the body and to its cells? A) respiratory and cardiovascular B) digestive and cardiovascular C) urinary and cardiovascular D) lymphatic and respiratory

Q: Which of the following systems are involved in coordination and regulation? A) nervous and endocrine B) digestive and cardiovascular C) urinary and cardiovascular D) lymphatic and respiratory

Q: Which of the two systems listed work together to bring oxygen into your body and deliver it to your cells? A) lymphatic and endocrine B) respiratory and cardiovascular C) respiratory and digestive D) urinary and cardiovascular

Q: In the textbook, the stomach was given as an example of an organ. Which of the following is a valid description of the work of one of its tissues? A) Its connective tissue helps drain the stomach contents. B) Its muscle tissue forces secretions out of glands and into the stomach. C) Its epithelial tissue secretes substances that help with digestion. D) Its nervous tissue communicates directly with the intestines to coordinate digestion.

Q: Glial cells are cells found in which type of tissue? A) muscle B) nervous C) connective D) epithelial

Q: Which of the following is characteristic of cardiac muscle? A) It is found only in the heart and blood vessels. B) It is most similar in appearance to smooth muscle. C) It is not striated. D) It contracts under the control of its pacemaker cells.

Q: The type of muscle tissue that can be under our conscious control is: A) skeletal. B) cardiac. C) smooth. D) skeletal and smooth. E) smooth and cardiac.

Q: A prescription medication lists a rare side effect of impairing the movement of smooth muscle. This medication could potentially affect the: A) heart. B) walls of the small intestine. C) muscles that move your arms and legs. D) muscles that move the eyeballs.

Q: Connective tissue is different from epithelial tissue in that connective tissue: A) has a structure called basement membrane. B) has cells that are usually separated and scattered in an extracellular material. C) is not made up of cells. D) is found only in joints.

Q: Muscle tissue has a specialized ability to: A) protect the body. B) support the body. C) shorten or contract. D) provide an internal framework for the body. E) form the glands.

Q: A function of connective tissue is to: A) move the muscles of the body. B) protect and cover the body. C) stabilize and support the body. D) form glands.

Q: The function of epithelial tissue is to: A) allow for movement of the body. B) protect and cover the body. C) support the body. D) form the immune system.

Q: What unusual feature do you find in connective tissues? A) glandular secretions B) conductive cells C) cells with the ability to contract D) extracellular material called the ground substance

Q: Bone, cartilage, adipose tissue, and blood are all examples of: A) epithelial tissue. B) connective tissue. C) muscle tissue. D) nervous tissue. E) small organ systems.

Q: Groups of cells that secrete substances are called: A) glands. B) organ systems. C) tissues. D) hormones.

Q: Which of the following statements best describes epithelial tissue? A) It is found only in the skin. B) It is always at least several layers thick. C) It covers internal and external surfaces. D) It produces blood cells. E) It only covers surfaces exposed to the internal environment.

Q: The four types of body tissues are: A) epithelial, glandular, muscle, and nervous. B) epithelial, hormonal, cellular, and bone. C) connective, cardiac, nervous, and adipose. D) connective, epithelial, nervous, and muscle. E) connective, neuronal, muscle, and epithelial.

Q: Groups of tissues that perform a specific body function make up: A) a tissue. B) an organ. C) the integument. D) a gland. E) an organ system.

Q: Groups of cells with a common function make up a/an: A) tissue. B) limb. C) organ. D) gland. E) organ system.

Q: The thoracic and abdominopelvic cavities are separated by the: A) lungs. B) vertebral column. C) diaphragm. D) rib cage.

Q: The spinal cavity and cranial cavity are the two parts of the: A) dorsal cavity. B) ventral cavity. C) abdominopelvic cavity. D) skeletal system.

Q: In humans, the heart and lungs are found in the: A) spinal cavity. B) abdominopelvic cavity. C) cranial cavity. D) thoracic cavity.

Q: In oxygen homeostasis, the kidney that releases EPO, prompting increased red blood cell production is the: A) stimulus. B) response. C) product. D) reactant.

Q: A stimulus producing a response that reduces the stimulus describes: A) all stimulus-response chains. B) positive feedback. C) negative feedback. D) breakdown of homeostasis.

Q: Which of the following is true concerning homeostasis? A) Homeostasis is the maintenance of a rigid internal environment with no variation. B) The maintenance of homeostasis relies mainly on positive feedback. C) Homeostasis allows for major fluctuations in body conditions. D) Homeostasis is the maintenance of a relatively stable internal environment.

Q: Which of the following is the study of the body's structure? A) physiology B) anatomy C) zoology D) endocrinology E) homeostasis

Q: The discipline dealing with the study of how parts of the body work is: A) physiology. B) anatomy. C) endocrinology. D) mechanics.

Q: Refer to the figure below, and then answer the following question(s). The missing label indicated by a "2" corresponds to the:A) anther.B) stigma.C) style.D) ovary.

Q: Refer to the figure below, and then answer the following question(s). The missing label indicated by a "1" corresponds to the:A) anther.B) stigma.C) style.D) ovary.

Q: Evaluate and explain this statement: An angiosperm plant could be described as the ultimate "solar energy organism."

Q: Describe how the broad leaf of a typical dicot is so well adapted for its job as the photosynthetic organ of a plant. In your answer make sure to assess the ways plants evolved to deal with potential problems the broad leaf might cause.

Q: Of the two basic structures of an angiosperm plant, roots are described as having the more straightforward function, while shoots have more complex functions. Evaluate and explain why this is true.

Q: After pollination, sperm cells travel through the carpel in a structure called the ________.

Q: ________ provides the force that moves water up xylem.

Q: The structures in which xylem and phloem tubes are found are called ________.

Q: The type of root system more common in monocots is the ________ root system.

Q: The two basic divisions of the "body" of an angiosperm plant are ________ and ________.

Q: Match the following. Answers may be used more than once.A) monocotB) non-flowering plantC) dicotNarrow leaves with parallel veins

Q: Match the following. Answers may be used more than once.A) monocotB) non-flowering plantC) dicotMay have woody growth

Q: Match the following. Answers may be used more than once.A) monocotB) non-flowering plantC) dicotSeeds not surrounded by fruit

Q: Match the following. Answers may be used more than once.A) monocotB) non-flowering plantC) dicotFibrous root system

Q: Match the following. Answers may be used more than once.A) monocotB) non-flowering plantC) dicotVascular bundles arranged in a ring

Q: Match the following.A) connects leaf to stemB) catches pollenC) open and close stomataD) conducts foodE) produces pollenStigma

Q: Match the following.A) connects leaf to stemB) catches pollenC) open and close stomataD) conducts foodE) produces pollenPetiole

Q: Match the following.A) connects leaf to stemB) catches pollenC) open and close stomataD) conducts foodE) produces pollenAnther

Q: Match the following.A) connects leaf to stemB) catches pollenC) open and close stomataD) conducts foodE) produces pollenGuard cells

Q: Match the following.A) connects leaf to stemB) catches pollenC) open and close stomataD) conducts foodE) produces pollenPhloem

Q: The pod of a pea plant represents a fruit produced by the plant.

Q: Although they may look different, all fruits come from one carpel and produce one seed.

Q: The fruit that surrounds a seed provides the primary nourishment for the germinating embryo.

Q: Double fertilization occurs within the embryo sac in the carpels of angiosperms.

Q: The anther in a flower produces microspores.

Q: The male gametophyte generation develops largely within pollen grains of angiosperms.

Q: Companion cells play a role in keeping xylem cells alive.

Q: The apical meristem produces the primary tissues in a plant.

Q: Ground tissue forms the bulk of the primary plant.

Q: The cotyledons of an embryo represent the first leaves of the plant.

Q: Vascular bundles are found in monocot stems but not in dicot stems.

Q: Woody plants exhibit secondary growth in addition to primary growth.

Q: Woody plants such as oaks and maples are dicots.

Q: Carpels are the often-colorful parts of a flower that attract pollinators.

Q: The "style" is the long, slender structure of the stamen.

Q: Guard cells open stomata when they engorge with water and bow outward.

Q: Most stomata are found on the top surface of a leaf.

Q: Stomata allow carbon dioxide into a leaf and water vapor out.

Q: Root hairs develop into taproots.

Q: A fibrous root system is made of roots that are all about the same size.

Q: Angiosperm flowers always self-pollinate because they have both male and female reproductive structures.

Q: Although they produce flowers, cacti with needle-like leaves would be classified as gymnosperms rather than angiosperms.

Q: A flower's nectar is food for pollinators, so one might question whether fruit is also an adaptation for attracting pollinators. Which of the following would be the most valid fact supporting the hypothesis that fruit is for encouraging seed dispersal rather than to encourage pollination? A) Fruit is too large for pollinators to consume. B) Fruit does not last long enough for long-term pollination cycles. C) The carpel has already been pollinated when fruit is developing. D) Pollinators do not have mouthparts appropriate to eat fruit.