Ecology

Presentation

•

Science

•

10th Grade

•

Practice Problem

•

Medium

•

NGSS

HS-LS2-2, MS-LS1-5, MS-LS2-3

Standards-aligned

Melissa Guinta

Used 27+ times

FREE Resource

18 Slides • 5 Questions

Ecology

7.6-7.10

Succession

Primary - Bare rock: starts with lichens (volcano, glacier)

Secondary - Soil present: starts with small annual plants (fires, clear cutting, climate change, introduced species)

Pioneer Species

Primary or Secondary Succession will happen here??

Multiple Choice

An ecosystem has experienced a flood. Which type of plants would you expect to see growing first after the flood?

Shrubs

Lichens

Small Annual Plants

Trophic Levels

Food Chain - plants bring insects, then small mammals, which bring?

Label Consumers vs Producers

Energy Pyramid: Only 10% passed on, rest used or lost as heat

A grass starts with 30,000 kJ of energy. How much energy would a cheetah acquire after it ate a zebra that consumed the grass?

30 kJ
300 kJ
3000 kJ

Multiple Choice

What is the difference between food chains and food webs?

Food webs show flow of energy from producers to consumers, food chains show the flow of energy from consumers to producers.

Food chains show a single path of energy, and food webs show overlapping pathways of energy

Biodiversity - More species diversity means more health of an Ecosystem

Habitat Loss/Fragmentation
Poaching
Introducing New Species
Pollution

Limiting Factors Determine Carrying Capacity

Restrict Population Growth

Density Dependent Limiting Factors

Disease
Parasites
Competition
Predation

Density Independent

Natural Disasters, Climate Change, Humans

Population Density - number of individuals in a population per unit area

Growth = from Birth Rate + Immigration
Decrease = from Death + Emigration
(BR+I) - (DR+E) = Population Growth
Positive number = growth; Negative number = shrinking

Exponential Growth

Population grows at the same rate

Open Ended

In a population of deer, the birth rate is 5, the death rate is 4, immigration is 8, and emigration is 6. Calculate the population growth by filling in the formula below.

(BR+I) - (DR+E) = Population Growth

Type response here

Multiple Choice

A trout population grew from 4 in 1992 to 16 in 1993 and then to 64 in 1994. If it continued to grow exponentially, approximately how many trout were there in 1995?

100

128

256

Greenhouse Gases

Carbon Dioxide (burning fossil fuels)

Methane (livestock, landfills

Nitrous Oxide (sewage treatment, agriculture)

Ballast Water - in ships

carries invasive species into great lakes

causing a decrease in native species the Walleye

Multiple Choice

White perch is a fish that is native to Atlantic coastal regions and is invasive to the Great Lakes. It feeds on native species. What was most likely its mode of introduction?

trapped in a cargo crate carrying nonperishable items

produce brought from the eastern states

trapped in a ship's ballast or a water tank

Ecology

7.6-7.10

Show answer

Auto Play

Slide 1 / 23

SLIDE

Similar Resources on Wayground

20 questions

Space Science Part 3: The Universe

Presentation

•

10th Grade

19 questions

Radioactive Decay

Presentation

•

10th Grade

18 questions

Cellular Respiration vs Photosynthesis

Presentation

•

9th - 10th Grade

21 questions

Scientific Method

Presentation

•

10th Grade

20 questions

Data analysis

Presentation

•

10th Grade

19 questions

Carbon and Nitrogen

Presentation

•

9th Grade

18 questions

Human Populations

Presentation

•

10th Grade

20 questions

evolution

Presentation

•

10th Grade

Popular Resources on Wayground

24 questions

PBIS-HGMS Day 10

Quiz

•

6th - 8th Grade

10 questions

HCS SCI 03 Summer School Review 3

Quiz

•

3rd Grade

11 questions

Home Scope

Quiz

•

7th - 8th Grade

15 questions

HCS SCI 05 Summer School Assessment 3 Review

Quiz

•

5th Grade

35 questions

Lufkin Road Middle School Student Handbook & Policies Assessment

Quiz

•

7th Grade

18 questions

Geo 11.3 Area of Circles and Sectors

Quiz

•

9th - 11th Grade

Discover more resources for Science

18 questions

Geo 11.3 Area of Circles and Sectors

Quiz

•

9th - 11th Grade