Portuguese man-of-wars are not jellyfish, they’re siphonophores, which means they’re actually a group of organisms, called zooids, that depend on each other to live. The creature gets its name from the upper-most organism which people say looks like the man-of-war warships that were first built by England in the 16th century. A different organism forms the tentacles, which usually hang 30 feet below the surface and have venom-filled nematocysts that are used to kill small fish.
(Source: holmesandwatsonanswer)
What’s the biological reason for crying?
Lots of animals get sad, but humans are one of the few whose eyes start to leak tears when we get emotional. What up with that?
So the other day in biology, my teacher asked the difference between ethical issues and technical issues
And this one kid raises his hand and says, “Technical issues are when you don’t have the technology needed to build a rocket to go to Mars. Ethical issues are when you don’t want to scare the Martians.” It really opened up my eyes.
What are Vitamins?
Vitamins are organic molecules that our body needs and gets from our diet. There are thirteen needed by humans and those are separated into two groups: Water-solubles and fat-solubles.
What Are the Differences Between Water- and Fat-Soluble Vitamins?
The major difference between the two is where your body stores them and what it does when you consume too much. If your body has too much of a water-soluble vitamin it will get rid of it easily through urinating. Fat-soluble vitamins, on the other hand, are deposited into body fat. This makes getting rid of too much difficult and can result in toxic levels.
Meet the Water-Soluble Vitamins
B1:
- peanuts, whole grains, legume
- Symptoms of deficiency: tingling, reduced heart function, poor coordination
B2
- meats, dairy, grains, veggies
- Symptoms of deficiency: cracks in skin, often around the mouth
B3
- grains, meats, nuts
- Symptoms of deficiency: confusion, delusions, skin and digestive problems
B5
- whole grains, fruits, dairy, veggies, meats
- Symptoms of deficiency: Tired, tingling, numbness
B6
- whole grains, veggies, meats
- Symptoms of deficiency: anemia, muscular twitching, iritability, convulsions
B7
- veggies, meats, legumes
- Symptoms of deficiency: skin, neural, musculature problems
B9
- oranges, nuts, whole grains, green veggies, legumes
- Symptoms of deficiency: anemia
B12
- dairy, eggs, meats
- Symptoms of deficiency: numbness, loss of balance, anemia
C
- broccoli, tomatoes, citrus
- Symptoms of deficiency: scurvy (teeth and skin deterioration), problems with wound healing
Meet the Fat-Soluble Vitamins
A
- dairy, orange and dark green veggies and fruits
- Symptoms of deficiency: blindness, immunity problems, skin problems
D
- eggs, dairy
- Symptoms of deficiency: bone problems
E
- seeds, nuts, vegetable oils
- Symptoms of deficiency: nervous system problems
K
- teas, green vegetables
- Symptoms of deficiency: Blood clotting problems
Because it is a cell wall
gel electrophoresis
Antibiotic Fact #2
New penicillin’s are derived from modifying 6-APA (6-aminopenicillanic acid) with novel side chains substituted onto the free amino group.
