Dissections
Earthworms have this many aortic arches (hearts) located around the esophagus, which act as "pseudo-hearts" to pump blood throughout the worm's circulatory system.
What is five?
Agar plates are commonly used to grow these kinds of microorganisms, allowing scientists to isolate, identify, and study pure cultures of single cells and their resulting colonies (2 answers).
What are fungi and bacteria?
These structures are vital, diverse ecosystems built by animal colonies called polyps, supporting 25% of marine life and protecting coastlines from storms.
What are coral reefs?
This carnivorous plant snaps shut around prey when the sensitive hairs are interacted with.
What is the Venus flytrap?
This part of the body has no blood vessels, gaining its nutrients directly from the aqueous layer of the tear film for nourishment.
What is the cornea?
These are the most common animal heart valves used for human replacement (2 answers).
What are porcine (pig) and bovine (cow) valves?
Agar, a substance derived from this plant, provides a solid, sterile environment where microbes form visible colonies. Common species used include Gelidium and Gracilaria
What is red algae (seaweed)?
The Earth's average surface has warmed by about this amount over the last 100 years.
What is 1.1 degrees Celsius (2.0 degrees Fahrenheit)?
This bright yellow plant, nicknamed "Indian saffron", was once used as a natural dye and is still brewed today to help with digestion.
What is turmeric?
This creature can survive being completely frozen solid, thaw out, and continue living. They can also handle about 600 megapascals (MPa) of pressure, which is about 6,000 times the Earth's pressure at sea level.
What is a tardigrade?
This internal organ produces bile, a digestive fluid that aids in fat digestion by breaking large fat globules into smaller droplets (through emulsification).
What is the liver?
Agar is a carbohydrate whose molecules consist of a number of sugar molecules bonded together, used as a gelling agent in food and as a culture medium in science.
What is a polysaccharide?
There are this many national parks managed by the U.S. National Park Service (NPS), which was established in 1916 to protect these natural wonders.
What is 63?
This tree's bark contains salicylic acid, which inspired the development of aspirin.
What is willow?
This human organ is the only one capable of completely regenerating itself after partial removal.
What is the liver?
Where the human heart has four chambers, left and right atriums and ventricles, a frog has this many chambers in its heart.
What is three?
In making homemade agar plates, you can use this, in the form of a bouillon cube or powder, as a source of nutrients for microorganisms. This provides essential components like protein derivatives (peptones), amino acids, vitamins, and minerals that fuel the growth of microorganisms on the agar.
What is beef?
Despite covering only 2% of the planet’s total surface area, this biome is home to an estimated (more than) half of the world’s plant and animal species.
What are rainforests?
This plant's seeds were once so valuable for their oil that they were called "black gold" in ancient Egypt, and today they're used to make tahini.
What is sesame?
This species of jellyfish can revert its cells back to a younger stage, earning it the nickname "the immortal jellyfish".
What is Turritopsis dohrnii?
The inner ear of a frog is connected to their lungs through these tubes that equalize pressure on both sides of the eardrum for hearing and balance.
What are the Eustachian tubes?
For Agar, this term refers to the significant difference between the temperature at which it solidifies (gelling) and the temperature at which it melts, allowing it to remain stable as a gel at room temperature but melt only when heated substantially.
What is hysteresis?
This number estimates how many metric tons of plastic enter the world's oceans annually.
What is 11 million?
This rare parasitic plant, native to Southeast Asia, produces the world's largest individual flower and has a strong odor of rotting flesh.
What is Rafflesia arnoldii (stinking corpse lily)?
This organism, also known as the "humongous fungus" can cover over 2,000 acres of underground in Oregon, making it the largest living organism on Earth. Growing as a network of underground filaments called mycelia, the visible mushrooms are only a small, temporary part of the vast organism.