2. EAGLE QUIZ
1. The northern hemisphere is most tilted towards the sun on the
____________.
a. March Equinox b. September Equinox
c. June Solstice d. December Solstice
2. Which latitude will have the most hours of daylight on the summer
solstice?
a. 00 equator b. 300 north
c. 450 north d. 600 north
3. EAGLE QUIZ
June 21
For the Northern
Hemisphere, the axis points
most toward the sun in June
(specifically around June
21), and away from the sun
around December 21. This
corresponds to the Winter
and Summer Solstice
(solstice is Latin for "the sun
4. EAGLE QUIZ
66.5 degrees north
During the northern
hemisphere summer
solstice, the area
“above” the Arctic Circle
— above 66.5 degrees
north) — receives 24
hours of daylight, while
the south polar region is
in total darkness.
5. EAGLE QUIZ
3. Warm air _______________ and it holds ________ water than
cold air.
a. sinks, less b. rises, less
c. sinks, more d. rises, more
4. A rain shadow is a reduction in rainfall __________________.
a. on the inland side of the coastal mountain ranges
b. during an El Niño event
c. that results from global warming
7. EAGLE QUIZ
5. The Gulf Stream is a current that flows ___________ along
the _________ coast of the United States.
a. north- south; east b. north- south; west
c. south-north; east d. south – north; west
6. _________ have a deep layer of nutrient – rich topsoil.
a. Deserts b. Grasslands
c. Rain forests d. Seamounts
8. EAGLE QUIZ
The warm Gulf Stream
originating in the tropical
Caribbean, for instance,
carries about 150 times
more water than the
Amazon River. The
current moves along the
U.S. East Coast across
the Atlantic Ocean
towards Europe.
9. EAGLE QUIZ
Grasslands are generally open
and continuous, fairly flat areas
of grass. They are often located
between temperate forests at
high latitudes and deserts at
subtropical latitudes.
Grasslands are characterized as
lands dominated by grasses
rather than large shrubs or
trees
10. EAGLE QUIZ
Most experts agree that a desert
is an area of land that receives no
more than 25 centimeters (10
inches) of precipitation a year.
Desert biomes are the driest of all
the biomes. In fact, the most
important characteristic of a desert
is that it receives very little rainfall.
Most deserts receive less than 300
mm a year compared to rainforests,
which receive over 2,000 mm.
11. EAGLE QUIZ
The tropical rainforest is a hot, moist
biome where it rains all year long. It is
known for its dense canopies of
vegetation that form three different
layers.
A rainforest is an area of tall,
mostly evergreen trees and a high
amount of rainfall.
Rainforests are Earth’s oldest
living ecosystems, with some
surviving in their present form for at
least 70 million years.
12. EAGLE QUIZ
Seamounts — undersea
mountains formed by
volcanic activity — were
once thought to be little
more than hazards to
submarine navigation.
Today, scientists recognize
these structures as
biological hotspots that
support a dazzling array of
13. EAGLE QUIZ
7. Biome distribution depends on ___________.
a. climate b. elevation
c. soils d. all of the above
8. Grasslands most often are found_________________.
a. at 300 north and south b. at high altitudes
c. in interior of continents d. where fire is rare
14. EAGLE QUIZ
The distribution of biomes
is determined by
environmental conditions,
which must be appropriate
to support the dominant
species. Moisture and
temperature are usually
the most important
environmental influences
on the distribution of
terrestrial biomes.
15. EAGLE QUIZ
Grasslands are usually found
in the dry interior of
continents, between the
mountains and deserts.
Grassland habitats are
places that receive more rain
than deserts but less
precipitation than forests.
Most of the plants here are
grasses, which don’t need as
much water as forest
vegetation.
16. EAGLE QUIZ
9. Permafrost underlies ______________.
a. artic tundra b. alphine tundra
c. boreal forest d. tallgrass praire
10. Warm, still water holds ___________oxygen than cold,
fast-flowing water.
a. more b. less
17. EAGLE QUIZ
Permafrost underlies most of the
Arctic Network and affects nearly
everything in Arctic ecosystems, from
soils and vegetation to water and
wildlife. Permafrost is frozen ground
that doesn't thaw in the summer due
to a cold climate.
Permafrost is defined as rock or soil
with ice that stays frozen for two or
more years. It usually lies below an
“active layer” of soil that freezes and
thaws every year.
18. EAGLE QUIZ
11. Chemoautotrophic bacteria and archaea are the main primary
producers for food webs.
a. in mangrove wetlands b. at sea amounts
c. on coral reefs d. at hydrothermal vents
12. Coral rely on symbiotic __________ for sugars.
a. fungi b. amoebas c. dinoflagellates d. green algae
19. EAGLE QUIZ
Chemoautotrophs are organisms that
obtain their energy from a chemical
reaction (chemotrophs) but their
source of carbon is the most oxidized
form of carbon, carbon dioxide (CO2).
They have been isolated in different
extreme habitats, associated to deep-
sea vents, the deep biosphere or
acidic environments. This form of
energy conservation is considered one
of the oldest on Earth.
20. EAGLE QUIZ
Chemosynthesis is the
process by which food (glucose)
is made by bacteria using
chemicals as the energy source,
rather than sunlight.
Photosynthesis is the process
by which plants use sunlight,
water, and carbon dioxide to
create oxygen and energy in the
form of sugar.
21. EAGLE QUIZ
Coral growth and calcification is
supported by sugars acquired
from symbiotic algae, allowing corals to
thrive in otherwise nutrient-poor
environments.
The dinoflagellates symbiotes of
coral conduct photosynthesis and instead
of retaining the products of
photosynthesis for their own use, release
most of it into the tissue of the coral,
which gives it enough energy to form
calcium carbonate skeletons.
22. EAGLE QUIZ
13. What biome borders boreal forest to the north?
a. savanna b. taiga c. tundra d. chaparral
14. Unrelated species in geographically separated parts of a biome
may resemble one another as a results of________________.
a. morphologically divergence b. morphologically convergence
c. resource partitioning d. co-evolution
23. EAGLE QUIZ
Boreal Forest & Woodland (or
taiga) extends across the
northern regions of North
America and Eurasia, with
extended cold winters and
short mild summers. It is
bounded on the north by
tundra and on the south by
either the northern limit of
temperate lowland and
subalpine forests or
grasslands (steppes).
26. EAGLE QUIZ
15. Match the following terms with the most suitable description.
A
1. TUNDRA D
2. CHAPARRAL E
3. DESERT F
4. SAVANNA C
5. ESTUARY B
6. BOREAL FOREST H
7. PRAIRE I
8. TROPICAL RAIN FOREST A
9. HYDROTHERMAL VENTS G
B
A. broadleaf forest near equator
B. partly enclosed by land, where fresh water and
seawater mix
C. African grassland with trees
D. low-growing plants at high altitudes or elevations
E. dry shrubland
F. at latitudes 300 north and south
G. mineral- rich, superheated water supports
communities.
H. conifers dominate.
I. North American grassland
28. EAGLE QUIZ
16. Most commonly, individuals of a population show a ____________
distribution within their habitat.
a. clumped b. random
c. nearly uniform d. none of the above
17. The rate at which population size grows or declines depends on
the rate of _________.
a. births b. deaths c. immigration d. all of the above
29. EAGLE QUIZ
The organisms in a population
may be distributed in a
uniform, random, or clumped
pattern. Uniform means that
the population is evenly
spaced, random indicates
random spacing, and clumped
means that the population is
distributed in clusters.
30. EAGLE QUIZ
18. Suppose 200 fish are marked and release in a pond. The following
week, 200 fish are caught and 100 of them have marks. There are
about __________ fish in this pond.
a. 200 b. 300 c. 400 d. 2,000
19. A population of worms is growing exponentially in a compost
heap. Thirty days ago, there were 300 worms and now there are 600.
How many will there be 30 days from now, assuming conditions
remain constant and resources are unlimited?
a. 1, 200 b. 1, 600 c. 3,200 d. 6, 400
32. EAGLE QUIZ
20. For a given species, the maximum rate of increase
per individual under ideal conditions is its
a. biotic potential b. carrying capacity
c. life history pattern d. age structure
33. EAGLE QUIZ
Carrying capacity is the maximum number, density, or
biomass of a population that a specific area can support
sustainably.
Life history of a species is the pattern of survival and
reproduction events typical for a member of the species
Age structure of a population refers to the proportionate
numbers of people in different age categories in a given
population for a defined time. It is a natural characteristic
of a population in a country or a region.
he September equinox is also known as the vernal or spring equinox in the Southern Hemisphere and is considered by astronomers as the first day of spring there.
23.4 degrees
