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Fall Unit 2 test review
Fall Unit 2 test review
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OCS Marine Biology Unit 2 test review questions
Flashcards
56 cards
F
Practice quiz
P
Host live
L
Questions
56
Answers
1
What region do you find mangrove forests?
All regions
Poles
Temperate
Tropics
2
Why are salt marsh plants important to their ecosystem? (multiple)
Sponge to reduce coastal flooding
Nursery for many commercial species' juvenile phase
Filter pollutants and excess nutrients
Food source for detritivores, birds, insects
3
What do herbivores eat?
Primary producers
Primary consumers
Pizza
Carnivores
4
What is the main use of lipids?
Growth
Buoyancy
Energy storage
Energy
5
Why are phytoplankton important? (multiple)
Make 70% of earth's oxygen
They are small
They are primary producers
Begin almost every food chain
6
Heterotrophic bacteria (decomposers) return many chemicals to the environment through: (multi)
Chemosynthesis
Respiration
Fermentation
Lysis
7
What are three products we get from algae to use commercially? (multiple)
Carrageenan
Artificial sweetener
Algin
Agar
8
What is a rhizome?
Horizontal stem of salt marshes
Part of a plant cell
Horizontal stem of seagrasses
Horizontal stem of mangroves
9
Why are accessory pigments important to algae and phytoplankton? (multiple)
Help gather light for photosynthesis
Allow them to live at different depths
Attract mates
Reduce competition for light
10
This organism (barnacle larva) is:
Phytoplankton
All of the above
Holoplankton
Meroplankton
11
What is biomagnification?
Concentration of toxins inc. as travels up the food chain
Concentration of nutrients inc. as travels up the food chain
12
What region do you find salt marshes in? (multiple)
Temperate
Tropics
Sub-polar
All regions
13
Phytoplankton need: (multiple)
Light
Cold water
Competition
Nutrients (Nitrogen, phosphorus, iron, silica, and calcium)
14
Colors used for photosynthesis are: (multiple)
Red
Violet
Blue
Absorbed
15
What are the different levels of biological organization?
Cells, tissues, organs, organ systems, organism
Trophic level
Food web
Genus and species
16
The interaction between two organisms that is described as "++" is?
Competition
Predation
Mutualism
Parasitism
17
What is photosynthesis? (multiple)
Converts CO2 to sugar using energy from the sun
How autotrophs make sugar
Converts sugar and oxygen to energy, water and CO2
A light snack..... Ha!
18
Matter and energy cycle through an ecosystem. True or False?
False
True
19
Ways algae differ from anthophytes: (multiple)
All parts of algae do photosynthesis
Algae attach to soft sediments
Algae do not need large support systems
Algae have roots
20
Food chains and food webs represent:?
Movement of different animals and the environment
Movement of matter and energy
21
This organism (krill) is:
Meroplankton
All of the above
Phytoplankton
Holoplankton
22
What two parts of the classification system make up the scientific name of an organism?
Family genus
Class order
Genus species
Kingdom phylum
23
How do viruses contribute to the marine environment? (multiple)
Kill host, controlling bacteria in plankton populations
Lysis (part of viral life cycle) releases nutrients
Facilitate sedimentation
Causing whale colds
24
What part of the kelp does photosynthesis?
Air bladder
Holdfast
Stipe
Blade
25
New production occurs when the thermocline is:
Absent
Present
26
Are the offspring from asexual reproduction genetically different or the same as the parent?
Same
Different
27
Examples of virus shapes:
Helical
Triangular
Final
Icosahedral
28
Chemosynthetic bacteria use energy derived from:
The sun
Organic matter
Chemical reactions
Oxygen
29
The color of light that penetrates seawater to the greatest depth is?
Green
Red
Blue
Orange
30
What are some abiotic factors that influence the optimal range of an organism? (multiple)
Temperature
Nutrients
Salinity
Sunlight
31
Which of the following is a role of sea grass in its environment? (multiple)
Sediment deposition
Habitat
Food for herbivores
Sediment stabilization
32
The major process that adds usable nitrogen to the sea?
Nitrogen fixation + nitrification
Cellular respiration
Chromatic adaptation
Photosynthesis
33
What part of an alga anchors the alga to the sea floor?
Holdfast
Blade
Air bladder
Stipe
34
What are the two types of roots that are unique to mangroves?
Blade
Pneumatophores
Rhizome
Prop roots
35
How much energy is passed on from one trophic level to the next?
90%
10%
95%
5%
36
What is the order of classification from the most general to least general
Kingdom, phylum, order, class, genus, family, species
Carbohydrates, lipids, proteins, nucleic acid
Kingdom, phylum, class, order, family, genus, species
Kingdom, phylum, family, class, species, genus
37
When do phytoplankton bloom in temperate regions?
Winter
Spring
Year round
Fall
38
Where is light not the limiting factor in the ocean?
Aphotic zone
Photic zone
Hydrothermal vents
The poles
39
What are detritivores?
Worms and hagfish
primary producers
Bacteria
Scavengers
40
When do phytoplankton blooms occur in the poles?
Winter
Spring
Never
Summer
41
What is the photosynthesis formula? (pick 2) H-BONUS
Carbon dioxide + water -> sugar + oxygen
C6H12O6 + 6O2 -> 6CO2 + 6H2O + energy
6CO2+ 6H2O -> C6H12O6 + 6O2
Sugar + oxygen -> carbon dioxide + water + energy
42
This organism (coccolithophore) is:
Meroplankton
Zooplankton
Phytoplankton
Larvae
43
What are the four main biological molecules?
Bacon, donuts, eggs, coffee
Carbon, hydrogen, oxygen, nitrogen
Carbohydrates, lipids, proteins, cells
Carbohydrates, lipids, proteins, nucleic acid
44
Where could you find fungi?
Open ocean
Intertidal zone
Mangrove
Seagrass
45
What is a sequential hermaphrodite?
Have functioning male and female reproductive organs
Starts life as one gender, stays the same
Male attaches to female and loses all organs except testes
Starts life as one gender and then changes to another
46
What stage of the Ulva alternation of generations life cycle is haploid?
Sporophyte
Gametophyte
47
When two of the same species interact, it is an example of what kind of interaction?
Interspecies
Intraspecies
48
What does isomorphic mean?
Sporophyte and gametophyte stages look the same
Sporophyte and gametophyte stages look different
49
The interaction between two organisms that is described as "+-"?
Commensalism
Predatory
Competition
Mutualism
50
Ways that nutrients return to the surface? (multiple)
Seasonal temperature change
Geographic features
Wind
Upwelling
51
What is the definition of plankton?
Living plant or animal that cannot swim against the current
Living plant or animal that can swim against the current
Non-living plant or animal that cannot swim against current
small animals eaten by whales
52
Are there seasonal phytoplankton blooms in the tropics?
Yes
No
53
What kind of creature eats both primary producers and other animals?
Carnivore
Omnivore
Herbivore
Great White Shark
54
What is an autotroph? (multiple)
An organism that makes its own food
Plants and some bacteria
A new Transformer
An organism that needs an outside food source
55
What kind of plankton has sexual and asexual phase to its lifecycle?
Diatoms
Crustaceans
Dinoflagellate
Zooplankton
56
How is energy lost between trophic levels?
Inedible materials
Cellular functioning
Reproductive losses
Cellular growth
