BIOL 1153 Ch 1 Invitation to Biology

What is a protist? A single-celled or multicelled eukaryotic consumer that breaks down material outside itself, then absorbs nutrients released from the breakdown A multicelled eukaryotic consumer that develops through a series of stages and moves about during part or all of its life A multicelled eukaryotic producer that is usually photosynthetic A common term for a eukaryote that is not a fungus, plant, or animal. A group of prokaryotes more closely related to eukaryotes

A common term for a eukaryote that is not a fungus, plant, or animal

What is a control group? Difference between results obtained from a subset and results obtained from the whole A result that is statistically unlikely to have occurred by chance alone A group of individuals identical to an experimental group except for the variable under investigation A group of individuals in an experiment that have a certain characteristic or receive a certain treatment

A group of individuals identical to an experimental group except for the variable under investigation

What is a scientific theory? A testable explanation for a natural phenomenon A hypothesis that stands after many years of systematic testing, is consistent with existing evidence, and is useful for making predictions about a wide range of phenomena Claims, arguments, or methods that are presented as science, but do not follow scientific principles The systematic study of the observable world

A hypothesis that stands after many years of systematic testing, is consistent with existing evidence, and is useful for making predictions about a wide range of phenomena

Which of these organisms is an example of a producer? A fungus that eats decaying organisms for energy and nutrients An animal that grazes on plants for energy and nutrients A parasitic plant that relies on its host for energy and nutrients An archaeon that makes food from chemicals produced by deep sea vents

An archaeon that makes food from chemicals produced by deep sea vents

What are the smallest units of life? Cells Atoms Molecules .Organisms

Cells

Which of the following is defined as a community interacting with its environment? Abiotic environment Ecosystem Biosphere Population

Ecosystem

In taxonomy, what traits have been used to classify species? Select all that apply. Differences in atomic structure Geographic distributions Differences in DNA sequences Anatomical features

Geographic distributions Differences in DNA sequences Anatomical features

What is the process in which organisms keep their internal conditions within tolerable ranges by sensing and responding appropriately to change? Development Homeostasis Photosynthesis Inheritance

Homeostasis

Which of the following is defined as a testable explanation for a natural phenomenon? Data Prediction Hypothesis Experiment

Hypothesis

What are the two components of the scientific name of a species in the Linnaean system? Select all that apply. Specific epithet Phylum Genus Family

Specific epithet Genus

What is biology? The study of plant structure and processes The study of life in the ancient past The study of human health The scientific study of life

The scientific study of life

What are the components of organ systems? Select all that apply. Tissues Communities Organs Cells

Tissues Organs Cells

Which of these are cellular activities that sustain a single-celled organism through its lifetime? Select all that apply. Increases in cell size and volume Development into a multi-celled adult Processes by which individuals produce offspring The transmission of DNA to offspring

Increases in cell size and volume Processes by which individuals produce offspring The transmission of DNA to offspring

What are the key features of life? Select all that apply. Life is sustained by inputs of energy and nutrients. Organisms are composed of one or more cells. Organisms acquire energy and nutrients through consumption of other organisms. Organisms sense and respond to changes in their environment. Genetic information in the form of DNA is passed to offspring.

Life is sustained by inputs of energy and nutrients. Organisms are composed of one or more cells. Organisms sense and respond to changes in their environment. Genetic information in the form of DNA is passed to offspring.

Which of the following are the steps of the scientific method? Select all that apply. Make a hypothesis Report your work to the scientific community Observe some aspect of nature Test the hypothesis Form a conclusion

Make a hypothesis Report your work to the scientific community Observe some aspect of nature Test the hypothesis Form a conclusion