The "plant" classification of these critters produces 90% of the world's oxygen.
Plankton/Phytoplankton
20
A lot of people know what seahorses look like, but what more general group of organisms do they belong to?
Fish
20
Some fish can change sex from male to female, or vice versa. True or false?
True
15
The largest structure created by non-human organisms is a type of what?
Coral Reef
15
The largest coral reef in the world is:
The Great Barrier Reef
15
Are there any marine reptiles?
Yes. Marine iguanas of the Galapagos are true reptiles who dive into the surf for food. They sun themselves on the rocky shores of the islands to get warm, and
20
The largest compound eye of any organism on the planet belongs to what deep sea dweller?
Giant Squid
15
Plastic is said to "never fully degrade." Explain what is meant by this.
The most durable plastics can take 450+ year to degrade, but even so they only degrade into smaller and smaller pieces.
25
In 2018 a study was conducted to find where microplastics could end up. Where was it found?
Inside human digestive tracts
15
Plastics are made of synthetic polymers. What does "synthetic polymer" mean?
It means it is made of repeating monomer units made by humans.
25
According to a study conducted by Orb Media on plastics and tap water, ____% of tested water samples from major metropolitan areas around the world were contaminated with plastic fibers.
83%
15
Microfibers from synthetic fibers have been shown to make up the majority of human material found along the worlds shorelines, accounting for up to as much as _____% of the total.
85%
15
How much of the ocean is yet to be fully explored?