PALs 1 Intro

1

Name (in order) the hierarchy of living things

atoms, molecules, cell, tissue, organ, organ system, organism, population, community, ecosystem, biosphere

What are the 7 properties of life? Can you name/describe them all?

order - made up of cells

reproduction - make babies

growth & development - grown in size (life cycle)

energy processing - must acquire chemical energy

regulation - homeostasis

response to environment - responds to external stimuli

evolutionary adaptation - adapt to the environment

What are the differences between hypos, theories, and laws?

hypothesis - a proposed explanation; tries to solve a problem

theories - explains an occurrence, must be well supported by scientific community

laws - describes natural occurrence without explanation

What are the steps in the scientific method?

see a problem, make a hypothesis, design an experiment, share results

Are you more likely to prove or disprove a hypothesis?

disprove a hypothesis, since you can never prove your hypothesis

How do scientists do research?

they research by creating a hypothesis, using the scientific method

What is the importance of peer evaluation?

it’s important to peer evaluation to ensure research is accurate, credible, and reliable