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QUESTION 1: All of the following are parts of a flower except theA. carpel.B. ovary.C. fruit.D. stamen.E. cuticle. QUESTION 2: The segmented worms of the phylum AnnelidaA. have an open circulatory system.B. possess setae on each segment.C. are acoelomate.D. display radial symmetry.E. move by use of flagella. QUESTION 3: In bryophytes, the rhizoidsA. obtain nutrients.B. are involved in reproduction.C. obtain water.D. lure possible prey.E. serve as attachment structures. QUESTION 4: Which of the following is not a characteristic differentiating Neanderthals from modern humans?A. Neanderthals had smaller brains.B. Neanderthals had larger noses.C. Neanderthals had projecting brow ridges.D. Neanderthals were shorter.E. Neanderthals were stronger. QUESTION 5: Fungi exhibit certain characteristics. One of these characteristics is that theyA. are capable of carrying on photosynthesis.B. lack cell nuclei.C. reproduce using seeds and pollen.D. reproduce using spores.E. are prokaryotes. QUESTION 6: In plants, the secondary metabolites are primarily responsible forA. food gathering.B. nutrition.C. defense.D. protection against ultraviolet radiation.E. overcoming air pollutants. QUESTION 7: In cnidarians, nematocysts are important inA. obtaining oxygen from the water.B. obtaining prey.C. movement.D. excretion of wastes.E. food digestion. QUESTION 8: Cnidarians and ctenophores are similar in that they both haveA. a pseudocoel.B. a digestive tract with two openings.C. radial symmetry.D. mesoderm.E. nematocysts. QUESTION 9: All members of the phylum Chordata shareA. exoskeletons.B. gills present throughout their lives.C. tails present throughout their lives.D. a vertebral column.E. a notochord present sometime in their lives. QUESTION 10: It is generally thought that animals have undergone four major physiological and anatomical innovations during their evolution. These are (in no particular order)A. development of tissues, photosynthesis, bilateral symmetry, multicellularity.B. development of the versatile forelimb, multicellularity, origin of patterns of embryonic development, development of tissues.C. multicellularity, bilateral symmetry, origin of patterns of embryonic development, development of tissues.D. bilateral symmetry, development of tissues, origin of the multichambered heart, origin of patterns of embryonic development.E. origin of patterns of embryonic development, development of the versatile forelimb, origin of the multichambered heart, multicellularity. QUESTION 11: Mammals have two traits that set them apart from all other animals. These areA. body hair or fur, and being homeothermic.B. four-chambered heart and milk production.C. amniotic eggs and milk production.D. body hair or fur, and milk production.E. four-chambered heart and body hair or fur. QUESTION 12: Which of the following characteristics is not shared by typical birds and mammals?A. four limbsB. insulating skin structuresC. milk productionD. four-chambered heartE. endothermy QUESTION 13: Lichens areA. symbiotic associations between a fungus and an alga.B. capable of causing some obscure diseases.C. only found growing on living matter.D. insensitive to changes in the environment.E. parasitic interactions between a fungus and an alga. QUESTION 14: It is generally thought that four critical innovations arose during the evolution of our ape-like ancestors into humans. All of the following are innovations exceptA. expansion of the human brain.B. development of the opposable thumb.C. toolmaking.D. bipedalism.E. use of brain power for abstract thought. QUESTION 15: Which of the following are adaptations to land of both gymnosperms and angiosperms but are lacking in ferns and mosses?A. spores B. roots, stems, and leaves C. fruits and flowers D. vascular system E. pollen and seeds QUESTION 16: Which of the following adaptations to life on land is found in both insects and modern reptiles?A. body surfaces that resist evaporationB. metamorphosis from a larval formC. two pairs of walking legsD. tracheae to distribute oxygenE. ability to fly QUESTION 17: In general, mammals are not good at dispersing chili plant seeds becauseA. chili seeds are dispersed mainly by the wind.B. the mammals do not travel very far before they release the chili seeds.C. the chili seeds do not stick to the mammals' fur.D. the seeds die as they pass through the digestive tract.E. the mammals are the main pollinators for the chili plant. QUESTION 18: Plants have adapted to dry land by evolving all of the following exceptA. tissues to conduct water through the plant.B. structures to protect reproductive cells and embryos.C. association with mycorrhizae to improve mineral uptake.D. forms of chlorophyll more efficient at capturing light.E. secreting a waxy coating to prevent water loss. QUESTION 19: This characteristic allows fungi to withstand heat and drought conditions.A. specialized organellesB. hyphaeC. cell wallsD. sporesE. mycelia QUESTION 20: Green algae such as Ulva demonstrate an alteration of generations. The diploid phase is called theA. gametophyte generation.B. zygote.C. diploid generation.D. sporophyte generation.E. embryo.
How many milliliters of glacial acetic acid (17.M) would you need to titrate an aqueous solution of 100 grams sodium acetate (MW= 82.0 g mol^-1) to get a final pH of 5.00 and a final volume of 1.00 liter? The pK' for acetic acid is 4.76. Please sh..
You are having a 2.5 mg/ml solution of an amino acid ( mol.wt. = 100). You are need to add the 0.5 µmoles into a test tube. Specify the amount you would pipette?
Write a hypothesis and null hypothesis
Make an experiment in which you will test the effect of an acidic fluid on enzymatic activity. To complete this project, it may be useful for you to review the Scientific Method Tutorial.
p53 is a tumor-suppressor gene that is involved in 50% of all cancers. What is its normal function in cells? A.It activates cell growth B.It activates cell death C.It activates DNA repair D.b and c E.a and b Please explain how you got your answer.
Obese adipose tissue is characterized by infiltration of macrophages. We and others recently showed that a specific subset of macrophages is hired to obese adipose and muscle tissue.
select three of the five major structures within the integumentary system and complete the following skin sebaceous
What makes up DNA i mean are the chromosomes emmbedded in DNAstrand or are they seprate. The coiled DNA is it also composed of chromosomes or are they seprete?
The Drosophila wingless gene (wg) was first Wnt family member identified with a role in development. There are several unusual alleles of the wingless gene. wg1 was the first allele identified and homozygous flies are viable but lack wings. Geneti..
describe the sequence of events that lead to the exocytosis of acetylcholine in the synaptic cleft of a postganglionic parasympathetic neuron. Start with an exon dendritic nicotinic receptor in a terminal ganglia.
q1. a women is perspiring profusely with rapid breathing breath smells like acetone and blood sugar is 650mgml blood
A tall, yellow, round plant is crossed to a dwarf, green, round one. The ratios occurred in F1 generation 3/8 tall, green, round; 3/8 dwarf estimate the genotype of the two parental plants.
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