8th grade Abiotic/Biotic Factor Notes

​Turn to page 24 and 25 in you Life Booklet.


This is an individual assignment. The question slides are on a timer. The Quizizz lesson is due at the end of class.

Complete the chart. Remember, the prefix bio means life.

Match

Match the following

• Biotic

• Abiotic

• Ecosystem

living things

Nonliving things

 the relationship between living and nonliving parts of the environment

• living things

• Nonliving things

•  the relationship between living and nonliving parts of the environment

Multiple Choice

Is a weather an abiotic or biotic factor? 

• abiotic
• biotic

Multiple Choice

Is a deer an abiotic or biotic factor? 

• abiotic
• biotic

Complete the chart. HINT: Biotic factors has 4 and Abiotic has 4

Multiple Choice

A cactus

• Biotic factor

• Abiotic factor

Multiple Choice

Limited food

• Biotic factor

• Abiotic factor

Multiple Choice

Air

• Biotic factor

• Abiotic factor

Multiple Choice

A zebra skeleton

• Biotic factor

• Abiotic factor

Multiple Choice

Soil or dirt

• Biotic factor

• Abiotic factor

​Doesn't depend on the amount of organisms. For example, natural disasters and weather

​Does depend on the amount of organisms. For example, competition, predation, food, shelter, disease.

Multiple Choice

Which of the following is a density-dependent factor?

• Drought

• Tornado

• Temperature

• Competition

Multiple Choice

Which of the following is a density-dependent factor?

• Lightening

• Earthquake

• Predation

• Floods

Multiple Choice

Which of the following is a density-independent factor?

• Disease

• Competition

• Floods

• Predation

Multiple Choice

Factors that keep the number of organisms from growing too large

• Biotic factors

• Abiotic factors

• Limiting Factors

• Carrying Capacity

Multiple Choice

Which of the following is a density-independent factor?

• Wildfire

• Food supply

• Disease

• Competition

​Complete the chart. HINT: 3 Dependent and 3 Independent

​Dependent Competition

​Independent Natural Disaster

Open Ended

What is the difference between abiotic and biotic factors?

Open Ended

Describe what density dependent factors depend on.

Open Ended

Name 2 examples of density independent factors.

​Use page 20-23 to help you with the next set of questions.

Multiple Choice

Energy pyramids show the amount of energy in different trophic levels in an ecosystem. The diagram shows a simplified energy pyramid for the Florida Everglades. Which level contains the most energy?

• Grass

• Gray fox

• Marsh rabbit

• Florida panther

Multiple Choice

In the food web provided, which organism is considered an omnivore?

• Grasshopper

• Frog

• Mouse

• Hawk

Multiple Choice

Organisms that transform energy from the Sun and use carbon dioxide and water to make food

• Producers

• Decomposers

• Photosynthesis

• Consumers

Multiple Choice

Organism that obtains energy by eating only plants

• Herbivore

• Producer

• Carnivore

• Omnivore

Multiple Choice

Which organism is the primary consumer?

• Phytoplankton

• Gulls and terms

• osprey

• herbivorous duck

Multiple Choice

Maggots feed on dead and decaying organisms for energy. What are maggots?

• autotrophs

• producers

• decomposers

• heterotrophs

Multiple Choice

What kind of relationship is shown in this image?

• parasitism

• commensalism

• mutualism

Multiple Choice

A symbiotic relationship where one organism benefits and one does not benefit but is unharmed

• parasitism
• commensalism
• mutualism
• predation

Multiple Choice

Behavior of one animal feeding on another

• predation
• competiton
• mutualism
• parasitism

Multiple Choice

Ticks feed on deer blood with harms the deer.

• Mutualism

• Commensalism

• Parasitism

​Use page 14-19 to help you with the next set of questions.

Multiple Choice

The end result of mitosis is

• 4 Identical Cells are produced

• 4 genetically different cells are produced

• 2 identical cells are produced

• 2 genetically different cells are produced

Multiple Choice

The end result of meiosis is...

• 4 identical cells

• 4 genetically different cells

• 2 identical cells

• 2 genetically different cells

Multiple Choice

Paul fell off his skateboard and scraped his knee. Which cell process is going to be used to heal the wound?

• Mitosis

• Meiosis

• The wound would not heal

• Cell diffusion

Multiple Choice

forms gametes

• Mitosis

• Meiosis

• Both

Multiple Choice

What do we use pedigrees for?

• To look at families
• To make determinations about the offspring
• To track traits in families
• Nothing

Multiple Choice

What do half colored symbols represent?

• The individual is a carrier (heterozygous).
• The individual expresses the trait.
• The individual has both recessive alleles.
• The individual has both dominant alleles.

Fill in the Blank

If a trait is expressed in a chart they will ___ the symbol.

Fill in the Blank

How many offspring were produced by the first generation?

Multiple Choice

Which of the following genotypes is homozygous dominant?

• A
• Aa
• AA
• aa

Multiple Choice

Which of the characteristics is a lion least likely to pass on to its offspring?

• fur color
• length of tail
• scars on leg
• body size

Multiple Choice

Two brown eyed parents (Bb) have a baby. What is the chance the baby is blue eyed? (HINT: SET UP A PUNNETT SQUARE. This question is worth 5 points.)

• 0 %
• 25%
• 50%
• 75%