Questions and answers by

leslie

Questions (470)

Homeostasis is the condition the body is in when all substances or variables in the body are at an ideal state. If necessary,
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Plants rely on many different structures and chemicals to defend themselves from herbivores. Some, such as poison ivy, make
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Pathogens such as bacteria and viruses cause many kinds of illnesses, ranging from mild viral infections such the common cold to
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Which of the following happens to the immune system of a person with HIV?Question 8 options: muscle cells are broken down,
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Which statement best completes the sentence below:Skin, part of the integumentary system, is your body's - Question 7 options:
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Which is an example of asexual reproduction in plants?Question 5 options: budding producing seeds fusing gametes producing
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The structure that is the interface between the blood systems of a mother and her fetus is the __________.Question 4 options:
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When you pet a dog, specialized neurons called sensory receptors receive a stimulus from the environment. The brain processes
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Haploid cells will be found in which two structures of a flowing plant?A pea flower with markings A, B, C, and D Question 2
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Of the following statements, which would correctly describe the relationship between the skeletal and muscular systems?Question
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Which groups of plants evolved most recently?undefined Question 20 options: gymnosperms and ferns mosses and ferns mosses
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The species name of the African elephant is Loxodonta africana. In the species name, africana is the __________.Question 19
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What is a phylogeny?Question 18 options: an organism's appearance an outdated system of classification an evolutionary history a
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Carolus Linnaeus developed a naming system called __________.Question 17 options: polynomial nomenclature taxonomy binomial
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2. 184 views
What is the broadest, most inclusive category of life on earth?Question 15 options: domain order species genus
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An organism new to science was discovered during a recent expedition to the Antarctic. The organism grows in colonies and is
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Which phrase best defines taxonomy?Question 13 options: the science of classification the study of the digestive system the
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Scientist have historically classified organisms based on homology, which is shared characteristics inherited from a common
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that continued functioning is known as endosymbiosis. Below the diagram represents a theory about cells. The origin of which
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Karina is looking at cells under the microscope. She observes four members of the phylum Ciliophora. How are the four cells
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This list of characteristics describes organisms in the ________ .undefined Question 5 options: protists kingdom only protists
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Scientists classify animals and sort them into groups, such as vertebrates and invertebrates. How do scientists classify frogs?Q
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Which groups of plants evolved most recently?undefined Question 20 options: gymnosperms and ferns mosses and ferns gymnosperms
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2. 99 views
The species name of the African elephant is Loxodonta africana. In the species name, africana is the __________.Question 19
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2. 78 views
What is a phylogeny?Question 18 options: a grouping of organisms an organism's appearance an evolutionary history an outdated
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2. 78 views
Carolus Linnaeus developed a naming system called __________.Question 17 options: taxonomy polynomial nomenclature binomial
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2. 173 views
Which two organisms are most closely related?Question 16 options: brown algae and dinoflagellates brown algae and red algae
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2. 93 views
What is the broadest, most inclusive category of life on earth?Question 15 options: order species genus domain
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2. 50 views
An organism new to science was discovered during a recent expedition to the Antarctic. The organism grows in colonies and is
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2. 91 views
Which phrase best defines taxonomy?Question 13 options: the science of classification the process by which a flatworm obtains
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2. 83 views
Scientist have historically classified organisms based on homology, which is shared characteristics inherited from a common
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2. 82 views
A Venn diagram below to show the characteristics of two kingdoms of organisms.undefined Which of these is a characteristics
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2. 84 views
Two characteristics of plants dominate their classification:the presence or absence of a seed the presence or absence of
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2. 85 views
The theory that complex cells evolved after primitive cells engulfed bacterial cells that continued functioning is known as
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Do viruses belong to one of the domains of life?Question 8 options: Yes, they belong to Domain Bacteria. No, they are not
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Karina is looking at cells under the microscope. She observes four members of the phylum Ciliophora. How are the four cells
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2. 73 views
Which organisms DNA will have the most in common with the chimpanzeeundefined Question 6 options: The hamster The lizard The
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2. 88 views
This list of characteristics describes organisms in the ________ .undefined Question 5 options: animals kingdom only protists
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Which of theses choices describe characteristics of organisms that are shared by various species of Fungi?Question 4 options:
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Scientists classify animals and sort them into groups, such as vertebrates and invertebrates. How do scientists classify frogs?Q
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Which of these describes a difference between viruses and cells?Question 2 options: Cells contain protein, and viruses contain
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2. 139 views
A dichotomous key is a helpful identification and classification tool. Scientist also use genetics (DNA) to classify organisms?
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A dichotomous key typically starts with _____ information and leads to _____ information.Question 4 options: old, new new, old
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Each time you answer a question in a dichotomous key, the following questions are based on _____.Question 3 options: how fast
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The scientific name of an organism is shown in italics. Scientific names have two parts: the genus name and the species name.Rea
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Read the two statements at lower right. Which of the two statements most closely matches the characteristics of the bird
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Read the two statements at lower right. Which of the two statements most closely matches the characteristics of the bird
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In the field, scientists often have to identify an unfamiliar organism (living thing). A reliable way to identify organisms is
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What is most likely the explanation of the data shown below?Question 2 options: There has been a drought in the area that is
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Biological evolution is the process by which populations of organisms change over time. In this lab, you were able to observe
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The pair of population graphs below display the results of two different five-year hunting cycles, one on light trees and one on
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Suppose a certain species of insect lives in the lush green canopy of the rain forest. Some of the insects are bright green in
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Get the Gizmo ready:Click Reset. Select the DARK TREES tab. Introduction: The 19th century was the time of the Industrial
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What is most likely the explanation of the data shown below?data table Question 2 options: There has been a drought in the area
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The Natural Selection Gizmo allows you to play the role of a bird feeding on peppered moths. The initial population of 40 moths
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What is the effect of having a dead zone in the Gulf of Mexico?Question 5 options: Increase likelihood of hurricanes. Algae
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If an ecosystem lost a keystone species, which outcome would you expect?Question 4 options: The oxygen supply in the ecosystem
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A pond located in a town was drained to make room for a new factory. Which change is likely to occur?Question 3 options: Loss of
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An invasive plant species takes over an aquatic ecosystem. Which scenario is likely to cause the ecosystem's collapse?Question 2
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What could happen if the average temperature increased in an ecosystem?Question 1 options: Populations of all organisms would
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What is a biotic factor in a coral reef ecosystem?Question 5 options: dissolved oxygen in water level of salinity level of the
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The Sonoran Desert is a unique ecosystem in Arizona and Mexico. What are the two main parts of this ecosystem?Question 4
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Why do most desert plants have waxy skin?Question 3 options: To help the plant store or save water inside Because it is hot in
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Which feature of plants helps it grow without being eaten by large animals?Question 2 options: deep roots Flowers with bright
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Which phrase best defines a biome?Question 1 options: an interacting community of different species a community and its abiotic
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The immune system and circulatory system work together when you get a small cut. An immune response called the inflammatory
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Your body is constantly defending against invaders but it is not always successful. Which of the following is a treatment for a
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Which of the following is considered your body's first line of defense against infection?Question 3 options: skin fever pancreas
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Several body parts actively work to break down food and make those compounds available to the rest of the body. Which of the
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Proteins are a type of biomolecule with a wide variety of functions. Which statement is correct about the digestive system and
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Which structure is the site of nutrient and gas exchange between the mother and a growing fetus?Question 5 options: umbilical
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Fertilization occurs when a sperm cell fuses with an egg cell. If each gamete contains 23 chromosomes, how many chromosomes
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Based on the diagram, how do planarians benefit from sexual reproduction?Diagram showing the differences between asexual and
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Which of the following structures does a fern have, but a flatworm and a human don't?Question 2 options: mitochondria DNA
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Living things share many basic characteristics and needs. One characteristic is the need to maintain the internal conditions of
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If our intent is to classify members of the kingdom Animalia, which statement below Best describes characteristics of members of
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Two characteristics of plants dominate their classification:the presence or absence of a seed the presence or absence of
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2. 96 views
What does the phylogenetic tree tell you about the evolutionary relationships of animals?undefined Question 3 options: Animals
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Which groups of plants evolved most recently?Missing Metadata Question 1 options: mosses and ferns gymnosperms and angiosperms
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If our intent is to classify members of the kingdom Animalia, which statement below Best describes characteristics of members of
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2. 96 views
Two characteristics of plants dominate their classification:the presence or absence of a seed the presence or absence of
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2. 82 views
What does the phylogenetic tree tell you about the evolutionary relationships of animals?undefined Question 3 options: Animals
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2. 146 views
A Venn diagram below to show the characteristics of two kingdoms of organisms.Which of these is characteristics could be
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Which revision corrects the dangling modifier in this sentence?Strolling on the boardwalk, the whale suddenly breached.
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What is the meaning of the euphemism character lines in this sentence?The character lines on Grandfather’s face create a rich
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Read this sentence.Second, there is the New York of the commuter—the city that is devoured by locusts each day and spat out
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Which quotation from the essay helps to create a hopeful tone in "Here is New York"?Responses “Irving Berlin’s journey
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Reread this quotation from the passage.“…each embraces New York with the intense excitement of first love, each absorbs New
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Read the passage.In 1924, Nathan Leopold and Richard Loeb were convicted of killing a fourteen-year-old neighbor boy. Leopold
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Based on this excerpt, what is the speaker's viewpoint on the person who committed the crime?Responses He has been
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Based on this excerpt, what is the speaker's viewpoint on the person who committed the crime?Responses He has been
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Based on this excerpt, what is the speaker's viewpoint on the person who committed the crime?Responses He has been
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What effect does the imagery of Twain's travel experience through the American West have on the meaning of this excerpt?Response
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In this excerpt from the poem, what is the connotative meaning of the word cried?Venus, when her son was lost, Cried him up and
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Which sentence contains a misplaced modifier?Responses Kara, on her way to the store, spotted a cow and a chicken. On the way to
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Select the word from the drop-down menu that most strongly conveys admiration.Joanna looked Choose... in her wedding dress,
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Select the word from the drop-down menu that most strongly conveys admiration.Joanna looked Choose... in her wedding dress,
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What does the word misspoke most likely mean in this sentence?Under cross-examination, the defendant admitted that he misspoke
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Read this sentence.He has fished in Manhattan’s wallet and dug out coins, but has never listened to Manhattan’s breathing,
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Reread this quotation from the passage.“…each embraces New York with the intense excitement of first love, each absorbs New
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2. 47 views