« previous next »
« previous next »
 

Did you know?

A good example of polar molecules can be understood when trying to make a cake. If water and oil are required, they will not mix together. If you put them into a measuring cup, the oil will rise to the top while the water remains on the bottom.

Did you know?

Medications that are definitely not safe to take when breastfeeding include radioactive drugs, antimetabolites, some cancer (chemotherapy) agents, bromocriptine, ergotamine, methotrexate, and cyclosporine.

Did you know?

By definition, when a medication is administered intravenously, its bioavailability is 100%.

Did you know?

All adults should have their cholesterol levels checked once every 5 years. During 2009–2010, 69.4% of Americans age 20 and older reported having their cholesterol checked within the last five years.

Did you know?

Sperm cells are so tiny that 400 to 500 million (400,000,000–500,000,000) of them fit onto 1 tsp.

Screening for Near Vision Acuity Screening for Near Vision Acuity
One page of color vision chart. One page of color vision chart.
The method of Land’s (1977) color-vision experiments. Subjects viewed Mondrians illuminated by ... The method of Land’s (1977) color-vision experiments. Subjects viewed Mondrians illuminated by ...
Retinal and Its Role in Vision Retinal and Its Role in Vision
Lobes of the cerebrum Lobes of the cerebrum
People who are color-blind see colors differently. (a) Those with normal vision see the red leaves. People who are color-blind see colors differently. (a) Those with normal vision see the red leaves.
Video: Stages of Mitosis - Prophase, Prometaphase, Metaphase, Anaphase & Telophase

For a complete list of videos, visit our video library