the first organism to move into habitat.

An abiotic factor is...

non-living factor of the environment

Define a keystone species:

Animal who serves a crucial role in the way a ecosystem runs

Many young, no parenting, reproduce once, fast maturation

The competitive exclusion principle states that ________________________.

no two species can occupy the same niche in the same habitat

Which two features below represent r-strategists?

Short-lived, Produce many offspring

definition of carrying capacity

maximum number of organism that supports an ecosystem

Which characteristics are correct for K-strategists.

Slow growth, few larger offspring, high parental care.

What is a Quadrat used for?

Estimating the population of small, slow animals and plants

What is the correct definition for realised niche?

The part of fundamental niche that an organism occupies.

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MINI Revision - Unit 3

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12 Biology Quiz Random Questions: QLD QCAA ATAR Biology - Units 3 - External Exam Revision.

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Questions 25

Answers

1
Pioneer species?
the first organism to move into habitat.
ecological succession
Idk
Climax community
2
An abiotic factor is...
organism that makes food for the community
organism that feeds on other organisms
living factor of the environment
non-living factor of the environment
3
Define a keystone species:
Another word for endangered
An animal who serves as an emotional support in your life
Animal who serves a crucial role in the way a ecosystem runs
Another word for threatened
4
Exponential or Logistic?
I don't know
Logistic
Exponential
Neither
5
What are the three domains?
bacteria, archaea, and eukarya
plants, animals, and fungi
bacteria, protists, and fungi
mammals, amphibians, and reptiles
6
Which measure would you use to estimate population size from secondary and primary data?
Percentage Cover
Lincoln Index
Specht's
Simpson's Diversity Index
7
The end goal of succession is a climax community
true
false
8
r-Strategists
Predators that compete with each other for resources
Herbivores that live in herds for protection
Many young, no parenting, reproduce once, fast maturation
Few young, intensive parenting, slow maturation,
9
The competitive exclusion principle states that ________________________.
species must compete for the resources they need
interaction between species shape the ecosystem
different species require different biotic factors
no two species can occupy the same niche in the same habitat
10
Which two features below represent r-strategists?
Short-lived
Extensive parental care
Produce many offspring
Large in size
11
Exponential or logistic?
I don't know
Exponential
neither
Logistic
12
Species Richness
Relative abundance of species
Number of species in an area.
Number of individuals in a species
Different phenotypes in an ecosystem.
13
The picture shows secondary succession
False
True
14
Which is the correct formula for Population Growth Rate:
r = births + death
r = births - deaths
r = immigrants - emigrants
r = (b + i) - (d + e)
15
What does dichotomous mean?
Two equal parts
Branching in two
Folded in two
Broken in two
16
definition of carrying capacity
maximum number of organism that supports an ecosystem
A single self contained entity that performs basic functions
biotic or abiotic factor that resist the growth of a population
17
Competition between different species:
Intraspecific
Interspecific
18
Which characteristics are correct for K-strategists.
Rapid growth, many small offspring, high parental care.
Rapid growth, many small offspring, little parental care.
Slow growth, few larger offspring, high parental care.
Slow growth, few larger offspring, little parental care.
19
Which two organisms are more closely related?
Insects & Fish
Amphibians & Birds
Prosimians & Humans
Birds & Prosimians
20
Definition: development & change in plant communities over time, leading from bare ground to climax community.
Secondary Succession
Founder Effect
Primary Succession
Migration
21
Identify the producers in this food web.
Squid, Krill
Fish, seagull.
Phytoplankton, seaweed.
Blue whale, killer whale.
22
What is a Quadrat used for?
Estimating the population of large, fast animals
Measuring how many square meters you can fit in an area
Estimating the population of small, slow animals and plants
Measuring the growth of grass
23
What is the correct definition for realised niche?
The entire niche that an organism could inhabit
Where an organism realises it should live
The part of fundamental niche that an organism occupies.
24
Which of the following is a density independent limiting factor?
competition
amount of space
natural disaster
disease
25
What is the classification of Humans using Binomial Nomenclature?
Homo sapiens
Homo Sapiens
Mammalia sapiens
Homo delphinus

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