Scientific Method Unit Notes Practice

Open Ended

Using the article displayed for citation, answer the following question.

Why do you think you need to know about chemistry in Biology?

Reorder

Order the following categories of the Hierarchy of Life from the LEAST COMPLEX to the MOST COMPLEX level.

• Atom

• Molecule

• Organelle

• Cell

• Tissue

1

2

3

4

5

• 1
• 2
• 3
• 4
• 5

Multiple Choice

 What type of biome is pictured?

• Tundra
• Temperate Rainforest
• Grassland
• Desert

Multiple Choice

What are the differences between saltwater and freshwater environments?

• Saltwater is found in oceans, while freshwater is found in rivers and lakes.

• Saltwater is less dense than freshwater.

• Freshwater is more saline than saltwater.

• Saltwater environments have more biodiversity than freshwater environments.

Multiple Choice

What is a species?

• A group of organisms that can mate with each other and produce fertile offspring. 
• A group of organisms that genetically are very different from each other. 
• A group of organisms that can mate and produce offspring even if those offspring are infertile.
• Indivual organisms that live in the same environment. 

Multiple Choice

What are the characteristics of an organism?

• All are made of one or more cells

• All need energy for metabolism

• All respond to their environment

• All can reproduce

Multiple Choice

Why is DNA important?

• it is very small and very complicated
• it's in everything
• it serves as the blueprint for traits of all living things
• because we eat it every day for energy

Multiple Choice

A disease has greatly reduced the number of snakes present in the desert ecosystem, shown in the diagram to the left. Which population would increase as a direct result of the decrease in the snake population?

• Hawks

• Rodents

• Foxes

• Scorpion

Multiple Choice

What is the function of the organ highlighted in the image?

• Digestion

• Respiration

• Circulation

• Excretion

Multiple Choice

In this photo, what is an abiotic factor?

• Deer

• Grass

• rain

Multiple Choice

What do biologists study in the context of the image?

• Different systems

• Only living organisms

• Only fossils

• Only ecosystems

Multiple Choice

This image shows how the body regulates its temperature. This is an example of

• positive feedback

• negative feedback

Open Ended

Using the image (upper loop-temperature drops), identify the stimulus, sensor, effector and response.

Multiple Choice

The picture shows the members of the Camelidae family. The physical features and the geographical origin of these animals provide evidence that - 

• they live in the same type of environment.
• have slowly evolved to become herbivores.
• have a common ancestor.
• exchanged DNA in the past.

Multiple Choice

What was the purpose of Francesco Redi's experiment in the 1600s?

• To determine the cause of maggots on meat

• To test the effects of temperature on meat

• To observe the behavior of flies

• To analyze the nutritional value of meat

Multiple Choice

What do experiments allow scientists to determine?

• What causes a phenomenon

• What describes a phenomenon

• What tests a hypothesis

• What is an observational study

Multiple Choice

Nico decided to test goldfish food to see which brand his goldfish preferred. He bought three different brands (Fresh, Sprinkles, and Flakes). Nico decided that all brands needed to be tested by the same goldfish and fed the same amount. Nico measured the amount of fish food that was eaten by his goldfish. The INDEPENDENT variable in Nico's experiment is

• amount of fish food eaten

• the same goldfish

• the brand of fish food

• none of these are an INDEPENDENT variable

Multiple Choice

What are the three key points about theories as explained in the image?

• Theories explain a wide range of observations

• Theories are always correct

• Theories can never change

• Theories are based on opinions

Poll

How confident do you feel about this topic now?

• Very confident
• Somewhat confident
• Not confident