WGU- Intro to biology (C190)--unit 1

WGU- Intro to biology (C190)--unit 1 Leave the first rating Students also studied Terms in this set (40) Science Biology Life Science Save WGU C190 Intro to Biology 311 terms ellen_nicole_allen Preview C190 210 terms joel_avila6Preview C190 Unit 2 49 terms Billie_Moody6 Preview WGU C Teacher txsc Practice questions for this set Learn1 / 7Study using Learn

• Be made of materials organized in a hierarchical pattern.
• Use energy and raw materials to survive.
• Sense and respond to changing environments and maintain internal stability, or

homeostasis.

• Grow, Develop and reproduce.
• Be part of a population that evolves.

BiologyThe study of life and the branch of science that studies living organisms and the way organisms interact with their environments.Choose an answer 1Biology2Characteristics of Life 3Organs4Abiotic matter Don't know?

Characteristics of Life1. Be made of materials organized in a hierarchical pattern.

• Use energy and raw materials to survive.
• Sense and respond to changing environments and maintain internal stability, or

homeostasis.

• Grow, Develop and reproduce.
• Be part of a population that evolves.

CellIs the smallest unit that displays all of the characteristics of a living organism.Matterany substance that has mass and takes up space.Biotic matterif it was ever alive at some point. ex. bacteria, cotton, Yogurt.Abiotic matterif it is nonliving and never has been alive. ex. water, Glucose, carbon dioxide, Cold Virus.All of the following are part of the sutdy of biology

EXCEPT:

a) Living Organisms

b) The interaction between living organisms and their

environment

c) Earthquakes

d) Life

• Earthquakes.

AtomBasic unit of matter.Moleculea chemical structure consisting of at least two atoms held together by a chemical bond.Macromoleculesare important molecules that are technically polymers.Prokaryotessmall and simple, they do not have andy clearly defined compartments inside of them.Eukaryotesinclude membrane-bound organelles: compartments inside the cell that contain specific groups of macro-molecules and carry out specific cellular functions.TissuesAre formed when similar cells work together to fulfill the same detailed function OrgansAre collections of tissues that work together to carry out a common general function.Organ Systemgroup of organs that work together to perform a specific function Organismsare individual living entities that survive and reproduce as a unit. for example: each tree in a forest is usually an individual organism.Populationall the individuals of a species living within a specific area.Communityall populations that interact with each other in positive and negative ways.

Ecosystemconsists of all the living things in a particular area together with the abiotic or nonliving, parts of that environment.Biospherea collection of all ecosystems on Earth.What level of organization is found within all of the other levels?Population If you eat a hamburger, you are mainly eating ground-up beef muscle. What levels of organization are certainly represented in this ground-up muscle?Organelle, Cell, Tissue

The first level of organization that is defined as living is: Cell

Emergent PropertiesCharacteristics of a system that are not present in any of its component parts.What is the first level of hierarchical organization that possesses the emergent property of life?Cell HomeostasisThe ability or tendency of organisms and cells to maintain stable internal conditions.Humans maintain a blood pH between 7.35 and 7.45. In order to maintain homeostasis, how will your body respond if your blood pH drops to 7.0?if your blood pH is 7.0, your body will raise your pH.EnergyThe capacity to do work or to make a change in the location, temperature, or structure of matter.ReproductionOccurs when and individual organism passes on its genetic information to a newly independent organism, or offspring.What is the best, most precise description of DNA's role in an organism?DNA is an inherited molecule that provides recipes for proteins. These, in turn, determine cell structure and function.You started life as a single cell and took on your current form through a process of development and growth. Why do cells in different parts of your body have different functions and characteristics?Each type of cell uses its DNA differently. The DNA is similar, but DNA reacts o conditions and makes different products in each kind of cell.EvolutionA scientific theory that explains how and why life changes over time.Natural SelectionA natural process that helps explain how groups of organisms become well- suited, or adapted, to their surroundings.Scienceis a process that helps us to understand ow the natural world works.Biologydeals with understanding living organisms.

scientific inquiryis an approach to asking and answering questions, and is the best approach we have to understanding the natural world and predicting natural phenomena.pseudoscienceis any claim that purports or pretends to be scientific in nature, but does not actually have the characteristics of true scientific inquiry.Independent VariableVariable that causes some outcome; researchers controls change in this variable.dependent variableVariable is the consequence of the experiment; researchers measure this variable throughout the experiment.Control VariablesVariables that are kept constant.