Affiliate Marketing Secrets

I NEED YOUR HELP!!!!!!!!!
1.
Which of these factors is biotic?
insects
water
sunlight
soil
2.
Which of these factors is abiotic?
bird
frog
hawk
wind
3.
Floods, droughts, or cold spells affect the _____ of an ecosystem.
abiotic factors
balance
materials
niche
4.
Ecologists count the number of frogs living in a pond community to determine the _____.
balance
limiting factors
organisms
population density
5.
The tree a squirrel lives in is its _____.
community
ecosystem
habitat
niche
6.
A living thing that uses energy, reproduces, and grows is called a(n) _____.
abiotic factor
ecosystem
habitat
organism
7. On the coral reef ecosystem figure shown, which factor is biotic?
rocks
sand
sea horse
water
8.
On the coral reef ecosystem figure shown, which factor is abiotic?
algae
sharks
rock
sponges

Which of these factors is biotic? (1 point) insects water sunlight soil
Which of these factors is abiotic? (1 point)
bird
frog
hawk
wind
3. Floods, droughts, or cold spells affect the _____ of an ecosystem. (1 point)
abiotic factors
balance
materials
niche
4. Ecologists count the number of frogs living in a pond community to determine the _____. (1 point)
balance
limiting factors
organisms
population density
5. The tree a squirrel lives in is its _____. (1 point)
community
ecosystem
habitat
niche
6. A living thing that uses energy, reproduces, and grows is called a(n) _____. (1 point)
abiotic factor
ecosystem
habitat
organism
Coral Reef Ecosystem:
sand,
rocks seawater sharks algae sea horse, use this to answer 7 and 8
7. On the coral reef ecosystem figure shown, which factor is biotic? (1 point)
rocks
sand
sea horse
water
8. On the coral reef ecosystem figure shown, which factor is abiotic? (1 point)
algae
sharks
rock
sponges

Can you please help me with my sciene homework.. I don’t understand it and i can’t find it in the text book
1. A _____ is the role an organism plays in the ecosystem.
a habitat
b symbiosis
c population density
d niche
2 _____ is the largest number of individuals of a species that an environment can support and maintain for a long period of time.
a Population size
b Limiting factor
c Carrying capacity
d Symbiosis
3 The number of individuals in a population is the population’s _____.
a carrying capacity
b size
c density
d spacing

A interaction is which both species benefit is best described as
• commensalisms
• mutualism
• predation
• parasitism
The number of individuals in a given area or volume of a habitat is
• the population density
• the population growth
• the population birth rate
• the population size
In natural communities, some feedback mechanisms operate whenever populations change in size, they are
• density-dependent factors
• density-independent factors
• always intrinsic to the individuals of the community
• always extrinsic to the individuals of the community
A population that is growing exponentially in the absence of limiting factors can be illustrated accurately by a(n)
• S-shaped curve
• J-shaped curve
• Curve that terminates in a plateau phase
• Tolerance curve
During the spring, male prairie chickens gather in open grassy areas an shuffle in a dance with their wings drooped, head erect and tail feathers spread. The function of this dance is to
• frighten off smaller birds from the territory
• select the showiest females to mate with
• attract the attention of the females
• imprint the younger male birds
• teach courting behavior to younger male birds
The maximum rate of increase per individual under ideal conditions is called the
• biotic potential
• carrying capacity
• doubling time
• population size
Female insects often attract mates by releasing sex pheromones. This signal is
• visual
• acoustical
• tactile
• chemical
The maximum number of individuals of a population (or species) that a given environment can sustain indefinitely defines ___________.
• exponential growth
• the carrying capacity of the environment
• the doubling time of a population
• density-independent factors
Newly hatched goslings follow any large moving object to which they are exposed shortly after hatching; this is an example of
• homing behavior
• imprinting
• piloting
• migration
The number of individuals that contribute to a population’s gene pool is
• the population density
• the population growth
• the population birth rate
• the population size
A young toad flips its sticky-tipped tongue and captures a bumblebee that stings its tongue; in the future, the toad leaves the bumblebees alone. This is and examples of
• instinctive behavior
• a fixed reaction pattern
• altruistic
• learned behavior
A newly mated queen ant found an ant nest in an unoccupied patch of suitable habitat. Assuming that no disasters strike the nest, which of the following types of equation is likely to best describe its population growth?
• linear
• quadratic
• logarithmic
• logistic
• exponential
Which of the following is NOT characteristic of logistic growth?
• S-shaped curve
• Leveling off of growth as carrying capacity is reached
• Unrestricted growth
• Slow growth of a low-density population followed by rapid growth
The range of all factors that influence whether a species can obtain resources essential for survival and reproduction is called the __________ of a species.
• habitat
• niche
• carrying capacity
• ecosystem
Assuming the birth and death rate remain constant, in the equation G = rN, r is equal to
• the per capita rate
• the minus migration factor
• exponential growth
• the net reproduction per individual per unit of time
A one-way relationship in which one species benefits an the other is directly harmed is
• commensalisms
• competitive exclusion
• parasitism
• mutualism
Answes:BAABCADBBBDCCBDC

1. The number of individuals in a population is the population’s _____. (1 point)
carrying capacity
size
density
spacing
2. _____ is the largest number of individuals of a species that an environment can support and maintain for a long period of time. (1 point)
Population size
Limiting factor
Carrying capacity
Symbiosis
3. A _____ is the role an organism plays in the ecosystem. (1 point)
habitat
symbiosis
population density
niche

a. melting of glaciers and permafrost
b. loss of high altitude species
c. increased productivity of food crops in the short term
d. increased drought and forest fires
e. all of the above are true
2) All of the following characteristics would make a species more prone to extinction except
a. low population density
b. specialized niche
c. short generation times
d. small population size
e. low reproductive rates