Marine Biology
What does marine biology study?
Marine biology is the study of marine organisms, their behaviors, and interactions with the environment.
Complete the sentence with the correct percentage:
The Food and Agriculture Organization have estimated that over ____ of species of marine fish have been fully or over-exploited.
The Food and Agriculture Organization have estimated that over 50% of species of marine fish have been fully or over-exploited.
What's the Goal number of Life Below Water? (for example: Goal 6, was Clean water and Sanitation).
Sustainable Development Goal 14: Life Below Water
What's the leading cause of water degradation?
Around the world, agriculture is the leading cause of water degradation.
Do fish sleep?
Yes, fish do sleep, but⌠Most fish except for sharks do not have eyelids, so they do not close their eyes.
Mention at least 3 interdisciplinary sciences that relate to Marine Biology.
The study of marine biology includes a wide variety of disciplines such as: astronomy, biological oceanography, cellular biology, chemistry, ecology, geology, meteorology, molecular biology, physical oceanography, marine ecology, biogeography, zoology, botany, genetics, fisheries biology, anthropology, economics, and law.
As more people inhabit the Earth, there is more demand for food, and one response is to grow as much fish as quickly as possible, regardless of the negatives⌠What's the name of this âpracticeâ?
Irresponsible Fish Farming
How many targets does this goal have?
The ten targets of the SDG14.
What is Water Pollution?
Water pollution occurs when harmful substancesâoften chemicals or microorganismsâcontaminate a stream, river, lake, ocean, aquifer, or other body of water, degrading water quality.
What is the worldâs largest fish in the world?
The whale shark is the largest fish, growing over 15meters in length.
What does Marine Mammology study?
Marine mammology: It is the study of cetaceansâfamilies of whales and dolphins, and pinnipeds (seals, sea lions, and walrus).
What do you understand by Ghost fishing?
Ghost fishing occurs when old fishing equipment is lost (or tossed), and continues to catch or entangle fish and other marine life.
Complete the sentence with the correct percentage:
Target 14.5 states that by 2020, we should conserve at least ___% of coastal and marine areas, consistent with national and international law and based on the best available scientific information.
Target 14.5 states that by 2020, we should conserve at least 10 percent of coastal and marine areas, consistent with national and international law and based on the best available scientific information
Complete the sentence with the correct percentages:
More than ___ percent of the worldâs wastewater flows back into the environment without being treated or reused, according to the United Nations; in some least-developed countries, the figure tops ___ percent.
More than 80 percent of the worldâs wastewater flows back into the environment without being treated or reused, according to the United Nations; in some least-developed countries, the figure tops 95 percent.
Which undersea creatures are known for making electricity?
Certain fish produce electricity to kill their prey or to defend themselves. The electric eel, a South American fish with a long body, can grow to a length of 2.75 meters and weigh nearly 22.7 kilograms.
What's the main difference between marine biology and oceanography?
While oceanographers study the oceans âthe chemistry, physics, and geology of ocean systems and how organisms shape these systems, marine biologists study marine organismsâtheir characteristics, physiology, and life history.
What species of whales are most affected by Commercial Whaling in the world? (they're two species).
Blue whales are listed as endangered on the IUCN list and there is less than one percent of the original population in the Antarctic now. West Pacific Grey whales are the most endangered with only a few more than 100 left in the oceans.
Complete the following sentence:
âOcean warming and the increase of ______________ are leading to an unprecedented ocean acidification that has been leading to an ecological collapse.â
Ocean warming and the increase of greenhouse gas emissions are leading to an unprecedented ocean acidification that has been leading to an ecological collapse.
Where do you think most of the Oil pollution comes from?
Nearly half of the estimated 1 million tons of oil that makes its way into marine environments each year comes not from tanker spills but from land-based sources such as factories, farms, and cities. At sea, regular operations of the shipping industryâthrough both legal and illegal dischargesâcontribute about one-third.
What's the better known name for the body part known scientifically as vibrissae, found on seals, walruses, and sea lions?
Whiskers âYâ !!
What does Ichthyology study?
Ichthyology: is the study of fishes, both salt and freshwater species. There are some 25,000+ species of fishes including: bony fishes, cartilaginous fishes, sharks, skates, rays, and jawless fishes.
What's the cause of Ocean Acidification?
The ocean absorbs up to one third of CO2 that we emit worldwide. The concentration of carbon dioxide has considerably risen and during this time, the pH of the surface waters of the ocean has fallen by 0.1pH units. (This might not sound like a lot, but it is actually equivalent to a 30 percent increase in acidity).
What do you think is the first target on the Goal Life Below Water list, and why?
Target 14.1: By 2025, prevent and significantly reduce marine pollution of all kinds, in particular from land-based activities, including marine debris and nutrient pollution.
Where do you think most of the Radioactive waste comes from?
Itâs generated by uranium mining, nuclear power plants, and the production and testing of military weapons, as well as by universities and hospitals that use radioactive materials for research and medicine.
How do fish breathe underwater?
Living creatures need oxygen to survive, and fish are no exception. The fish sucks the water in through its mouth and squirts it out through its gills; during this process, the gills take the oxygen from the water into the blood vessels.