MS-LS1-1
Conduct an investigation to provide evidence that living things are made of cells, either one cell or many different numbers and types of cells.
- Health & Medicine
Surprise! Most ‘color vision’ cells see only black or white
Cone cells in the eye’s retina can see black, white or color. The black and white ones may create sharp outlines and edges that color-sensing cones then fill in like parts of a coloring page.
- Animals
Tasmanian devils begin to resist infectious cancer
A deadly contagious cancer is spreading among Tasmanian devils. But the animals are evolving resistance, a new study finds.
- Plants
Scientists Say: Chlorophyll
Plants can make energy out of sunlight, all thanks to a pigment called chlorophyll.
- Materials Science
How to make window ‘glass’ from wood
Scientists have come up with a way to make wood transparent. The new material could be used in everything from windows to packaging.
- Chemistry
Microbes mine treasure from waste
Like miniature factories, bioreactors house microbes recruited to chew through wastes to clean dirty water, make chemicals or generate electricity.
- Physics
Scrubbing bubbles: Secret to ouch-free dental cleanings?
People with sensitive teeth can find routine dental cleanings painful. But bubbles might pave way to no-touch — and pain-free — cleaning for these people.
- Life
Cell recount: People host far fewer germs
Since the 1970s, microbiologists have been saying bacteria outnumber human cells in our bodies by about 10-to-1. A new analysis says that old number was a “fake” fact — and gross exaggeration.
- Genetics
Expert panel approves human gene editing
Scientists have recently been reporting big advances in the ability to tweak the genes of living organisms, including people. But some question the ethics of doing that. A panel of experts now says such research can go ahead — with one major exception.
- Life
Explainer: What is a virus?
Viruses cause many of the world’s common diseases. These germs reproduce by hijacking the cells of their host.
- Chemistry
Cooking up life for the first time
The basic components for life could have emerged together nearly 4 billion years ago on the surface of Earth, chemists report.
- Chemistry
Silencing genes — to understand them
Hijacking a cell process called RNA interference can let scientists turn off a selected gene. Its silencing can point to what genes do when they’re on — and may lead to new treatments for disease.
- Agriculture
Livestock: A need to save rare breeds
New studies and ongoing work highlight why society should save rare livestock breeds — and the part that technology can play.
