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Bio Final
pactice test (s)
| Question | Answer |
|---|---|
| Consider a tadpole becoming a toad. You would expect to find it changing its form of nitrogenous waste from | ammonia 2 urea |
| What is the primary characteristic that groups phyla within the Ecdysozoa? | They shed their exoskeletons. |
| new species adapted to living underground cavern no source water. eyeless and covered by fur, has a four chambered heart with a closed circulatory system. What excretory system adaptations to this extreme environment might the biologist expect to find? | nephrons with long loops of Henle |
| What do you predict would happen if flower growth became indeterminate? | The flowers would be enormous. |
| During inspiration (a.k.a. inhalation) of air into the lung of a mammal | the diaphragm contracts |
| Spermatophytes are | all living and fossil seed plants |
| In conifers, microspores develop into: | pollen grains |
| explain why the breathing ability of amniotes is different amphibians. argue that something like a terrestrial salamander identical breathing mechanism amniote.convince critical breathing innovations amniotes, in order to breathe as an amniote does, salam | develop new muscular associations in the ribcage. |
| The spinifex hopping mouse that is very different from other mice as it is adapted to the extreme desert environment. What will happen to this mouse if no water is available at all? | Unlike the devastating effects that water deprivation would have for almost any other species, nothing will happen to the spinifex hopping mouse, as it obtains sufficient water from its metabolic activities. |
| plants that need ample rainfall and soil nitrogen maturity. Reproduction upon having high pollinators. experiment providing water nitrogen to the plants years. Do you think these two steps will increase the carrying capacity of the population? | No, because even if more plants reach maturity, the number of pollinators will still be a limiting resource. |
| The most significant finding from the "split brain" patients studied by Roger Sperry and his collaborators was that | in most human brains, the left hemisphere is specialized for processing verbal and symbolic material; the right hemisphere is specialized for visuospatial and emotional processing. |
| Which of the following lists the structures of the male reproductive tract in the proper order from sperm production to ejaculation? | seminiferous tubules, epididymis, vas deferens, ejaculatory duct, urethra |
| The synaptic cleft is most accurately described as | the narrow extracellular space between the presynaptic and postsynaptic neurons at the synapse. |
| Pufferfish Japan, liver contains tetrodotoxin voltage-gated Na+ channels. testing for the presence using a neuron.electrical stimulus produce an action potential. if tetrodotoxin levels are high enough to block the neuron's voltage-gated Na+ channels? | The neuron will show a normal resting potential, but will not exhibit depolarization when the stimulus is applied. |
| Contraction of the muscles surrounding an arteriole that decreased its diameter by 50% would | increase the resistance in the arteriole approximately 16 fold. |
| Most of Europe is in the ______ biome. | temperate deciduous forest |
| Marsupials are distinguished by | a marsupium. |
| Which of the following statements best compares the two dominant lineages of modern angiosperms? | Monocots have only one cotyledon whereas eudicots have two. |
| Which option would be the LEAST effective initial line of defense against pathogens? | Thin, non keratinized skin of a salamander |
| Often it is important for health reasons to induce labor (i.e., smooth muscle contractions) in pregnant women. The drugs used for this purpose would most closely resemble | oxytocin |
| In ruminants, cellulose digestion occurs in the | rumen and reticulum. |
| You are charged with differentiating a snake and a lizard. Which of the following statements allows you make this distinction without any doubt? | A combination of characteristics is necessary to distinguish lizards and snakes--no single characteristic will suffice to describe the differences. |
| Many flowers growing in a cluster along a stem are known as: | an inflorescence |
| Sharks are osmoconformers, but have a rectal gland that is similar in function to the salt gland of sea birds and sea turtles. For what problem is this an adaptation? | gain of ions |
| An animal that does NOT maintain a relatively constant internal water concentration as the osmolarity of its environment varies is termed an | osmoconformer |
| During muscular contraction, cross-bridges form between _____ and _____ . | actin, myosin |
| A physician has a young man as a patient who does not seem to be developing male secondary sex characteristics. Predict which hormone the physician could prescribe to help this issue. | testosterone |
| The protrusible rasping organ in a mollusk's mouth that is used to scrape food from the substrate is | a radula |
| A distinctive type of larva shared by several phyla of invertebrates and considered to be important in phylogeny is the | trochophore |
| The sinoatrial node consists of a form of this tissue. | muscular |
| You observe the symbiotic association of a green algae and a fungus in your backyard. After a time you note that the fungus has sickened, and it eventually dies. What do you predict will happen to the green algae? | The green algae will be more vulnerable to grazers and pathogens. |
| Imagine that you have been assign the task of describing a new mammalian species. You note that this species has mutated so RBCs no longer go through final stage of maturation. Predict how this might affect the species. | Red blood cells could replicate outside of bone marrow since they retain their nuclei. |
| What is adiabatic cooling? | cooling due to the decrease in air pressure at higher elevations |
| A neurologist diagnoses a patient with damage to the hippocampus. This observation is consistent with the difficulties the patient reports with forming memories of recent events. | planning movements. |
| Primary production is generally highest in | tropical rain forests. |
| Predict what would happen if the pulmonary vein returned blood to the right atrium. | Oxygenated blood would be kept in a circular path between the heart and lungs-it would not reach the systemic circuit. |
| A lizard warming himself on a rock in the sun is an example of: | conforming |
| The type of receptor that consists only of a naked nerve fiber ending is called a | Pacinian corpuscle. |
| Which one of the following is true of the sporophyte stage of a flowering plant? | It is the obvious stage, for example an oak tree. |
| plant studying sluggish healing abilities as well as an inability to store significant food reserves. You would like to enhance these properties. If you could enhance the growth of a tissue to improve these properties, which tissue would you enhance? | parenchyma of the stem cortex |
| Dopamine derived from the hypothalamus is the prominent hormone controlling pituitary prolactin secretion. Dopamine inhibits prolactin. would happen if the pituitary moved base of the brain and transplanted to some distant place in the body such that dopa | Prolactin secretion would increase. |
| If the regulation of hunger and thirst mechanisms goes haywire, the brain region that is most likely damaged is the | hypothalamus |
| The placement of the phylum Platyhelminthes in the phylogenetic tree differs between a morphologically based phylogeny and a molecular based phylogeny. How do scientists best differentiate the interpretation based on molecular phylogeny? | Modern Platyhelminthes do not have a coelom but did originate from an ancestor that had one. |
| Suppose you discover a new species of animal that does not have body segments, but is triploblastic, eucoelomate, and cephalized. Under the molecular phylogenetic scheme, you would allocate it to which phylum? | Platyhelminthes |
| The sympathetic nervous system is part of the | autonomic nervous system. |
| The waxy polymer on the leaves of vascular plants that protects them from pathogens is called | cutin |
| The Earth is spherical, which causes differences in the intensity of solar radiation at different latitudes figure 54.17). The Earth is also titled on its axis at a 23.5° angle. How do you think this tilt affects the intensity of solar radiation? | The sun's rays strike the Northern hemisphere more obliquely during its summer months and less obliquely during its winter months. |
| You've just had a near miss in your car. Your pulse is racing and you notice your pupils are wide open when you look in your rearview mirror. What part of your autonomic nervous system is activated? | sympathetic |
| Biogeochemical cycles involve | the movement of chemicals through ecosystems. |
| Which is the correct order of hormone secretion in response to inflammation? | The hypothalamus stimulates the anterior pituitary to produce ACTH which causes the adrenal cortex to secrete cortisol. |
| How is most carbon dioxide transported in the blood? | as bicarbonate ions (HCO3) |
| Which of the following mineralcorticoid is responsible for regulating blood volume and pressure? | aldosterone |
| Which statement is NOT true about the human respiratory system? | The glottis is closed by the forward movement of the soft palate during swallowing. |
| Which of the following statements about the cerebrum is NOT true? | The right hemisphere is associated with analytical reasoning and the left hemisphere is associated with artistic and musical ability. |
| The sequence of decreased death rate followed by a decrease in birthrate is called | demographic transition. |
| Nephridia are the paired structures used in excretion in | earthworms |
| Identify the correct sequence that freshwater will flow through. | ocean - clouds - stream - estuary - river |
| The anther and filament are parts of the | stamen |
| A pressurized airplane cabin and an oxygen tent over a patient in a hospital both impact the respiration rate of a person. How do these compare? | The oxygen tent increases concentration of O2 while the airplane maintains total air pressure without changing concentrations. |
| Angiosperms are _______ when the male and female reproductive parts are on different individuals of the same species. | dioecious |
| If the mean annual precipitation of a region, currently characterized by grasslands, was to increase by 50 cm per year, what type of biome(s) would evolve in that region? Picture | temperate forests |
| Albumin is the large protein molecule found in egg white and blood plasma. Table salt dissociates into sodium and chloride ions. Urea is assembled in the liver. Health, what is the fate of the majority of these molecules as they pass through a nephron? | Albumin remains in the blood, salt ions move into the filtrate but most are reabsorbed, and the urea moves into the filtrate and is excreted in the urine. |
| Which of the following factors can lead to diabetes insipidus? | Abnormally low level of ADH secretion from the hypothalamus which results in low levels of ADH in the posterior pituitary, preventing the reabsorption of water in the kidneys. |
| The function of endosperm is to | provide nutrients to the embryo. |
| Double fertilization in an angiosperm produces | a diploid zygote and a triploid endosperm. |
| What are the potential consequences if a person's kidney suddenly stopped secreting the normal hormones? | The person would have trouble regulating their blood volume and pressure due to the imbalance of salt in the blood stream. |
| Which of the following endocrine glands does NOT produce its own hormones, but stores hormones produced by the hypothalamus? | posterior pituitary |
| Nitrogenous wastes are primarily produced by | breakdown of amino acids. |
| What hormone stimulates the production of cortisol? | adrenocorticotropic hormone |
| Deamination of amino acids, in the excretory system, will initially result in the formation of | ammonia |
| Which is NOT a function of the kidneys? | hormone secretion to stimulate red blood cell production and regulate sodium ion levels |
| Major cardiovascular disorders include all of the following EXCEPT | diabetes |
| A moth-pollinated flower is likely to have | white flowers with short tubes, a wide landing area, and no odor. |
| What is the body's response to a rise in temperature above 37.0 degrees C? | Blood vessels in the skin dilate which increases blood flow to the surface of the skin. Environmental variables will help decrease the temperature of the blood. The nervous system also activates the sweat glands which help decrease temperature. |
| What would cause you to believe that someone has a heart murmur? | irregular heart sounds instead of sharp lub-dub sounds |
| Which is most closely associated with negative feedback? | As the temperature falls in a house, the heater comes on. |
| Which kind of white blood cell is involved in the production of antibodies? | B Lymphocytes |
| Monocots protect their first true leaves by __________, whereas eudicots protect their first leaves by __________. | bending the coleorhiza as the shoot grows through the soil; a surrounding sheath called the coleoptile. |
| Which lower respiratory tract disorder can be cured through the use of antibiotics that are effective against bacterial infections? | Pneumonia |
| As plants invaded the land, there was | All of the above. |
| In the alternation of generations life cycle of plants, gametes are produced by the | gametophyte |
| Which variable is not a density-dependent factor? | An early cold spell that causes the plants in a given area to die off earlier than normal. |
| The nitrogenous waste material of an embryo that accumulates inside the eggshell of a bird or reptile is | uric acid |
| Flagellated sperm and a sporophyte that is dependent on the gametophyte are characteristics of | liverworts and mosses |
| Which of the following pairs of zones are comparable? | Epipelagic - Benthic |
| Which of the following skin derivatives is mismatched with the organism on which it is found? | amphibians - epidermal scales |
| What is the correct order of blood flow through the cardiovascular system? | Heart – artery – arterioles – capillaries – venules – veins |
| Which of the following is NOT strictly a freshwater community? | estuaries |
| Which of the following statements is NOT true about the germinated pollen grain? | The tube cell produces the pollen tube. |
| Which of these vascular plants produce seeds? | Gnetophytes |
| Nephridia are the paired structures used in excretion in | earthworms |
| Which of the following features would disqualify a plant from being classified as a bryophyte? | None of these features would disqualify a plant from being classified as a bryophyte. |
| What is the mode of action of hormones? | Peptide hormones bind to cell-surface receptors and result in the activation of enzymes, while steroid hormones enter the cell, usually bind to receptors in the nucleus and result in the activation of certain genes. |
| Which is most closely associated with negative feedback? | As the temperature falls in a house, the heater comes on. |
| In the water cycle, evaporated equatorial water that rises and does not immediately rain back down proceeds to | about 30° north or south and then cools and condenses, supporting a band of moist vegetation. |
| Which of the following is NOT a simple fruit? | pineapple |
| If the Earth was standing still (not rotating) and was a solid, uniform ball, wind directions would | run north and south. |
| As the embryo matures, | the suspensor transfers nutrients from the endosperm to the embryo. |
| Which of the following cardiovascular diseases is caused by a narrowing of the arteries causing the heart to work harder when pumping? | hypertension |
| Many plants are totipotent, which means | the cell has the genetic capability of becoming an entire plant. |
| Incoming solar radiation affects | the rise and fall of air masses. evaporation or precipitation of moisture. the seasons. |
| The largest biome on Earth is the | ocean (marine aquatic). |
| Which structure does blood pass through immediately before it enters the left ventricle? | atrioventricular valve |
| The correct sequence of increasing organizational complexity is | cell, tissue, organ, organ system, organism. |
| Seedless vascular plants include all of the following EXCEPT | Psilotum—Pteridophytes |
| The removal of the anterior pituitary gland would result in all of the following except | a decrease in the body's ability to lower blood calcium levels. |
| As the average global temperature continues to increase, which type of biome(s) will take over the regions currently inhabited by temperate forests? | Taiga and woodlands |
| Which of the following is NOT a nitrogenous waste product produced by the excretory systems of animals? | bile pigments |
| Identify the correct pairing of respiratory disorders and symptoms. | All of the pairings of respiratory disorders and symptoms are correct. |
| There is unidirectional flow of air for greater absorption of oxygen in | birds |
| An animal with a simple netlike nervous system is the | hydra |
| Which of the following events will occur as an ocean current moves from an equatorial region towards a polar region? | The current will be warm as it leaves the equatorial region and begins to cool as it moves towards the polar region. This in turn will cause the air currents to become cooler as they move closer to the poles creating a tundra type of biome. |
| Which substance is normally found in the glomerular filtrate but not in urine? | glucose |
| As food is swallowed it may come into contact with air in which of the following respiratory organs? | As food is swallowed it may come into contact with air in which of the following respiratory organs? |
| Which of the following features would be found in the epidermis layer of the skin? | stratified squamous epithelium, cells produce keratin, contain melanocytes, offers a layer of protection against bacteria |
| In dissection, most nerve fibers appear gray to white because | nerve fibers are covered in a myelin sheath made of lipid or fat molecules. |
| Identify the hormone that is released by the anterior pituitary but does not control other endocrine glands. | gonadotropic hormone |
| Which of the following statements about fruits is NOT true? | A blackberry is an example of a simple fruit. |
| Which valve is responsible for preventing the backflow of blood into the right ventricle? | Pulmonary semilunar |