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EOSC 315 Real Exam Questions and Correct Answers (Verified Answers) A Grade

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EOSC 315 Real Exam Questions and Correct Answers (Verified Answers) A Grade What is oviparous? - Answer- Producing eggs that hatch sometime after leaving the body What is ovoviviparity? - Answer- embryos develop inside eggs that are retained within the mother's body until they are ready to hat...

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  • November 19, 2024
  • 12
  • 2024/2025
  • Exam (elaborations)
  • Questions & answers

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  • eosc 315
  • eosc 315 real exam
  • what is oviparous
  • eosc 315 real exam questions and correct answers

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EOSC 315 Real Exam Questions and
Correct Answers (Verified Answers) A
Grade
What is oviparous? - Answer- Producing eggs that hatch sometime after leaving the
body

What is ovoviviparity? - Answer- embryos develop inside eggs that are retained within
the mother's body until they are ready to hatch

What is the function of a swimbladder? - Answer- Allows for very precise depth
adjustments

Does all osteichthyes have swim bladder? - Answer- No

In terms of breeding, most osteichthyes are? - Answer- Oviparous

What is simultaneous hermaphrodites? - Answer- Both female and male organs in one
organism

What is sequential hermaphrodites? - Answer- At some point in their lifecycle switch to
being a different gender

What is gonochorism? - Answer- Separate male and female individuals

What are myomeres? - Answer- Bands of muscle that runs along the side of a fish's
body. Produce contractions that propel the body during swimming

Irrigation of the gills is done _____________ by bony fishes, but mostly
_________________ by cartilaginous fishes - Answer- actively, passively

What is Ramjet respiration? - Answer- Respiration in some shark, need to move to keep
"breathing"

How does benthic sharks respire? - Answer- Forcing water over their gills by opening &
closing their mouth

What is the function of an operculum? - Answer- Allows for a more efficient gills
irrigation mechanism

, What are examples of protective strategies employed by bony fishes? - Answer-
Mucous layer, Scales, Cryptic colouration, Countershading

What is the Intermediate Disturbance Hypothesis? - Answer- Diversity highest in
intermediate disturbances

Why can't a primary producer be a keystone species? - Answer- Because the dominant
primary producer in an ecosystem is called a foundation species

What is a keystone species? - Answer- Species that exert a strong control of the
ecosystem relative to its biomass

(True or False) A keystone species is simply a species whose disappearance would
alter the ecosystem. - Answer- False

Does water or air has a higher heat capacity? - Answer- Water

Usually _____% of energy is transferred from one trophic level to another - Answer- 10

What is a grazing food web? - Answer- Herbivores consume photoautotrophs in the
photic zone

What is a detritus food web? - Answer- Waste from living material (organic molecules)
from the base of the web

What is always in every food web? - Answer- Microbial loop

What is the greatest source of DOM? - Answer- Viruses' lysis of bacteria, phytos,
heterotrophic microbes

What are sources of DOM? - Answer- Viruses, sloppy feeding, diffusion, waste

High areas of productivity in the pelagic generally have _________ food webs, why? -
Answer- Small, food starts out larger

What is the intertidal? - Answer- Interface between land and sea

What is the keystone species for the intertidal zone? - Answer- Sea star

What are the basic types of intertidal organisms? - Answer- Epiflora, epifauna, infauna

What are the 2 major coastal types in North America - Answer- Rocky bottom and soft
bottom

Where are rocky shore communities common? - Answer- Techtonically active coasts

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