19 Chapter 19 Ocean Life. Life Living things must do several processes: Take in and use energy ...
-
Upload
melvin-howard -
Category
Documents
-
view
216 -
download
0
description
Transcript of 19 Chapter 19 Ocean Life. Life Living things must do several processes: Take in and use energy ...
![Page 1: 19 Chapter 19 Ocean Life. Life Living things must do several processes: Take in and use energy Grow and develop Respond to the environment Excrete.](https://reader034.fdocuments.us/reader034/viewer/2022051717/5a4d1b667f8b9ab0599b05aa/html5/thumbnails/1.jpg)
Chapter
1919Ocean Life
![Page 2: 19 Chapter 19 Ocean Life. Life Living things must do several processes: Take in and use energy Grow and develop Respond to the environment Excrete.](https://reader034.fdocuments.us/reader034/viewer/2022051717/5a4d1b667f8b9ab0599b05aa/html5/thumbnails/2.jpg)
Life Living things must do several processes:
Take in and use energy Grow and develop Respond to the environment Excrete wastes Reproduce
19.2 Life in the Ocean
![Page 3: 19 Chapter 19 Ocean Life. Life Living things must do several processes: Take in and use energy Grow and develop Respond to the environment Excrete.](https://reader034.fdocuments.us/reader034/viewer/2022051717/5a4d1b667f8b9ab0599b05aa/html5/thumbnails/3.jpg)
Ecosystems Living things belong to ecosystems:
Energy enters the food web and is used by producers
Producers are consumed by consumers Consumers can also be consumed!
19.2 Life in the Ocean
![Page 4: 19 Chapter 19 Ocean Life. Life Living things must do several processes: Take in and use energy Grow and develop Respond to the environment Excrete.](https://reader034.fdocuments.us/reader034/viewer/2022051717/5a4d1b667f8b9ab0599b05aa/html5/thumbnails/4.jpg)
Ecosystems Energy source may be:
Light—used by organisms that can do photosynthesis
Chemical—used by prokaryotes near geothermal vents deep in ocean
19.2 Life in the Ocean
![Page 5: 19 Chapter 19 Ocean Life. Life Living things must do several processes: Take in and use energy Grow and develop Respond to the environment Excrete.](https://reader034.fdocuments.us/reader034/viewer/2022051717/5a4d1b667f8b9ab0599b05aa/html5/thumbnails/5.jpg)
Marine Life Zones Three factors are used to divide the ocean
into distinct marine life zones: the availability of sunlight, the distance from shore, and the water depth.
19.2 The Diversity of Ocean Life
Availability of SunlightThe photic zone is the upper part of the ocean
into which sunlight penetrates.The aphotic zone is deep water where there is no
light
![Page 6: 19 Chapter 19 Ocean Life. Life Living things must do several processes: Take in and use energy Grow and develop Respond to the environment Excrete.](https://reader034.fdocuments.us/reader034/viewer/2022051717/5a4d1b667f8b9ab0599b05aa/html5/thumbnails/6.jpg)
Marine Life Zones Distance from Shore
19.2 The Diversity of Ocean Life
• The intertidal zone is the zone between high and low tides.
• The neritic zone is the marine-life zone that extends from the low-tide line out to the shelf break.
• The oceanic zone is the marine-life zone beyond the continental shelf.
![Page 7: 19 Chapter 19 Ocean Life. Life Living things must do several processes: Take in and use energy Grow and develop Respond to the environment Excrete.](https://reader034.fdocuments.us/reader034/viewer/2022051717/5a4d1b667f8b9ab0599b05aa/html5/thumbnails/7.jpg)
Marine Life Zones
![Page 8: 19 Chapter 19 Ocean Life. Life Living things must do several processes: Take in and use energy Grow and develop Respond to the environment Excrete.](https://reader034.fdocuments.us/reader034/viewer/2022051717/5a4d1b667f8b9ab0599b05aa/html5/thumbnails/8.jpg)
Marine Life Zones Water Depth
19.2 The Diversity of Ocean Life
• The pelagic zone is open zone of any depth. Animals in this zone swim or float freely.
• The benthic zone is the marine-life zone that includes any sea-bottom surface regardless of its distance from shore.
• The abyssal zone is a subdivision of the benthic zone characterized by extremely high pressures, low temperatures, low oxygen, few nutrients, and no sunlight.
![Page 9: 19 Chapter 19 Ocean Life. Life Living things must do several processes: Take in and use energy Grow and develop Respond to the environment Excrete.](https://reader034.fdocuments.us/reader034/viewer/2022051717/5a4d1b667f8b9ab0599b05aa/html5/thumbnails/9.jpg)
Classification of Marine Organisms Marine organisms can be classified
according to where they live and how they move.
19.2 Life in the Ocean
Plankton• Plankton include all organisms—algae, animals,
and bacteria—that drift with ocean currents.• Phytoplankton are algal plankton, which are the
most important community of primary producers in the ocean.
• Zooplankton are animal plankton.
![Page 10: 19 Chapter 19 Ocean Life. Life Living things must do several processes: Take in and use energy Grow and develop Respond to the environment Excrete.](https://reader034.fdocuments.us/reader034/viewer/2022051717/5a4d1b667f8b9ab0599b05aa/html5/thumbnails/10.jpg)
Plankton
![Page 11: 19 Chapter 19 Ocean Life. Life Living things must do several processes: Take in and use energy Grow and develop Respond to the environment Excrete.](https://reader034.fdocuments.us/reader034/viewer/2022051717/5a4d1b667f8b9ab0599b05aa/html5/thumbnails/11.jpg)
Classification of Marine Organisms Nekton
19.2 The Diversity of Ocean Life
Benthos
• Nekton include all animals capable of moving independently of the ocean currents, by swimming or other means of propulsion.
• Benthos describes organisms living on or in the ocean bottom.
![Page 12: 19 Chapter 19 Ocean Life. Life Living things must do several processes: Take in and use energy Grow and develop Respond to the environment Excrete.](https://reader034.fdocuments.us/reader034/viewer/2022051717/5a4d1b667f8b9ab0599b05aa/html5/thumbnails/12.jpg)
Nekton
![Page 13: 19 Chapter 19 Ocean Life. Life Living things must do several processes: Take in and use energy Grow and develop Respond to the environment Excrete.](https://reader034.fdocuments.us/reader034/viewer/2022051717/5a4d1b667f8b9ab0599b05aa/html5/thumbnails/13.jpg)
Benthos
![Page 14: 19 Chapter 19 Ocean Life. Life Living things must do several processes: Take in and use energy Grow and develop Respond to the environment Excrete.](https://reader034.fdocuments.us/reader034/viewer/2022051717/5a4d1b667f8b9ab0599b05aa/html5/thumbnails/14.jpg)
Habitats Habitat is where an organism lives
19.2 The Diversity of Ocean Life
Ocean Margin HabitatsBeachRocky shoreEstuary
where river and ocean meetReef
corals in clear warm water