Ch.1

Introduction: The Scientific Study of Life

What are these? Flying foxes What do they have to do

with chapter 1? Flying foxes are used as an

example of organisms interacting with their environment

List 3 things you learned about this animal?

Carry pollen Fly 25-30Km/hr Not blind Type of bat

In one or two sentences explain what this picture means?

This is the levels of organization in an ecosystem

Which level is the largest? Ecosystem Name another organ and

organ system found in most animals

Kidney/Urinary system Heart/circulatory system Lungs/respiratory system

What have scientists learned from observing flying foxes with their babies?

They carry their babies when they are flying

What type of science is this called?

Discovery

What do we call this type of science?

Hypothesis-driven How is it different from

discovery science? It involves testing a

hypothesis rather than just observing.

What do you think you would have to do after you test your hypothesis?

See the next slide

What is the difference between inductive and deductive reasoning?

See the next slide

Deductive reasoning starts with a theory and ends in confirmation or rejection of the theory

Inductive reasoning starts with an observation and leads to a theory

How do we use both of these types of reasoning in science?

We make observations that lead to the formation of reasonable hypothesis which we can test.

What do you observe about the two animals in the bottom picture?

The fly looks like a spider when it flaps its wings.

What does a control group mean?

These were not treated Why did they dye the

experimental group? They covered the

markings so it would not look like a spider

What did they find out? Flies without markings

got attacked more often

What did scientists do in this experiment?

The transplanted wings. Why were there 2 controls? They wanted to show that

transplanted wings still worked so they transplanted mimic wings onto mimic flies

What was the conclusion? Mimic wings are not enough

to prevent attack they need to know the waving behavior too. Houseflies with mimic wings were still attacked.

What are the 3 domains?

Archea, bacteria and eukarya.

Domain bacteria on the top and archea on the bottom both have what type of cells?

Prokaryotes

The top picture is in which domain and kingdom?

Domain eukarya, kingdom Plantae

The bottom picture is in which domain and kingdom?

Domain eukarya, kingdom Fungi

The top picture is in which domain and kingdom?

Domain eukarya, kingdom protista

The bottom picture is in which domain and kingdom?

Domain eukarya, kingdom animalia

The orchids in the top picture illustrate what major idea in biology?

Diversity The molecule

pictured is? DNA It represents unity

of all living things

What idea is being ilustrated in the picture?

Natural selection

Can you tell what these are?

Sea horses Why are they so

hard to see? Camouflage

QuickTime™ and aCinepak decompressor

are needed to see this picture.

What does this picture represent?

Food web How does CO2 get

incorporated? Plants convert it to

sugar What is the function of

a decomposer? They eat dead material

and break it down into molecules again.

What is this bird doing?

Getting energy

Does energy cycle through the environment?

No it is lost as heat Do nutrients cycle? Yes they are

constantly broken down and put back together.