Which statement best summarizes Gregor Mendel's contribution to science? Mendel invented the green pea by cross-breeding thousands of pea plants. Mendel discovered green peas and yellow peas. Mendel increased the number of peas produced by a single plant using cross-breeding techniques. Mendel is considered the "father of genetics."
Which is a characteristic of something in the domain archaea? A.) Membrane-enclosed organelles B.)No cell nucleus C.) Cannot live in extrememe enviorments D.)Multicellular
Which describes a way that the Plum Pudding model was shown to be incorrect? Select one: A. Neutrons were shown to be located in the nucleus. B. Electrons were shown to be located outside the nucleus. C. Protons were shown to be positively charged. D. Atoms were shown to contain mostly empty space.
Which of the following conditions leads to hurricane season in the Atlantic region? a. wind speeds in the Atlantic Ocean b.warm waters in the Atlantic Ocean c. high pressure zones over the Atlantic Ocean d. high wind speeds in the upper atmosphere above the Atlantic Ocean
Which of these changes do not involve forming or breaking chemical bonds? A. burning and melting B. rusting and cutting C. burning and digesting D. boiling and melting
Acetaminophen is a medication most commonly given for what purpose? as an antibiotic as an antihistamine as a pain reliever as an antiviral
The group that includes gibbons and humans but does not include monkeys is the (1 point) primates. anthropoids. hominoids. hominines.
Which of the following is an example of epithelial tissue? A) the brachialis muscle B) insulating fat C) the outer lining of the parotid gland D) hyaline cartilage covering bone
A nerve poison that blocks acetylcholine receptors on dendrites would _____. a nerve poison that blocks acetylcholine receptors on dendrites would _____. cause continued stimulation of the postsynaptic membrane inhibit the regeneration of acetylcholine for use by the presynaptic terminals inactivate acetylcholinesterase, allowing acetylcholine to persist in the synapse reduce the binding of acetylcholine to its receptors on the postsynpatic membrane cause an immediate and enduring depolarization
Arrange the events of succession in their proper order. a. pioneer species, plant growth, soil formation b. pioneer species, soil formation, plant growth c. soil formation, pioneer species, plant growth d. soil formation, plant growth, pioneer species
Which of the following bacterial cells would best be able to survive an attack by an antibiotic? a.A bacterial cell that used its toxins to alter its DNA and resist the antibiotic b. A bacterial cell that had a cell membrane made of ester-linked fatty acids c.A bacterial cell that lacked receptors on its surface for that antibiotic d.A bacterial cell that was going through binary fission when the antibiotic appeared
Consider a population of wildflowers in which the frequency of the red allele cr is p = 0.7. what is the frequency of the white allele (cw ) in this population? what is the frequency of the white allele (cw ) in this population? 0 0.3 0.49 0.7 submitrequest answer part b this punnett square shows allele combinations for all possible genetic crosses in the wildflower population described in p
Epithelial tissue can be ____________ according to cell shape and number of layers. one layer of cells is called ____________ , and more than one layer is called stratified. thin, flat, scaly cells are ____________ . cuboidal cells are either rounded or ____________ in shape.
We develop connections between brain cells through what? a. our senses. b. school. c. nutrition. d.all of the above
What percentage of blood is made up of plasma? a. 55% b. 40% c. 10% d. 5% User: How many chambers does the heart contain? a. 3 b. 4 c. 5 d. 6
Which factor within a population could be studied to determine whether the population is evolving? A. Allele frequency B. Number of individuals C. Reproduction method D. Age of individuals
Which classification of marine organisms includes swordfish and sharks? neritic benthos nekton plankton
Which of the following is likely to be researched by an ecologist? a. the effect of natural disasters on the environment b. the effectiveness of current environmental law c. the effect of species loss on the environment d. the effect of dioxin on organisms in the environment
The sensory division of the body A. is part of the central nervous system. B. includes sensory neurons that receive impulses from the central nervous system. C. contains the somatic and autonomic nervous systems. D. transmits impulses to the central nervous system from sense organs
When did the United States grant independence to the Philippines?: in 1898, as part of the Treaty of Paris in 1916, with the Jones Act in 1941, when the Spanish occupied the islands during World War II in 1946, when the islands were liberated from Japanese occupation during World War II 2. Unlike Britain, France, and Russia, the United States: controlled large areas of China. wanted to keep trade in China open. had no interest in trade with China. broke China into distinct spheres of influence. 3. When Filipinos rebelled against U.S. rule, the United States found itself: quickly defeated by the rebel soldiers. at risk of losing the Philippines to the Spanish. using some of the same tactics that the Spanish had used in Cuba. able to easily restore order in a few months.
Which substances do plants produce as waste products? A. carbon dioxide and uric acid B. oxygen and urine C. carbon dioxide and urine D. carbon dioxide and oxygen
Which of the following conduct the most pollination for angiosperms? squirrels butterflies birds bees