Answer:
Tissues
Explanation:
Tissues are groups of cells that have a similar structure and act together to perform a specific function.
Four types of tissue: Epithelial, connective, muscular, and nervous
Answer: Our atmosphere is about 78% nitrogen and 21% oxygen, with traces of other things like water and carbon dioxide. It's an odd mix compared to the atmospheres of other planets. Jupiter and Saturn are dominated by hydrogen and helium, The thick atmosphere of Venus is about 96% carbon dioxide, and only 3% nitrogen, which is about the same ratio as the thin atmosphere of Mars. So why is our atmosphere so dominated by nitrogen?
It wasn't always this way. Like most planets Earth's earliest atmosphere was dominated by hydrogen and helium. These two elements are by far the most abundant in the Universe. About 92% of the atoms created by the big bang were hydrogen, and most of the rest were helium. All the other elements on the periodic table are formed through astrophysical processes such as nuclear fusion in the heart of a star. To this day they make up only a small trace of cosmic elements.
Explanation:
<span>As salma views a famous impressionist painting that is hung on a wall, her RETINAS receive visual information about the art and carry this information to her brain. At the back of each eye, the retina is a thin sheet of tissue containing several types of cells. The photoreceptor cells in the retina first transform light energy into electrical current. The last processing step in the retina is the activity of neurons calls retinal ganglion cells. The ganglion cells send electrical impulses along their axons, which form the optic nerve that travels into the brain.</span>
Answer:
The tail is used as a rudder in swimming, as a balance prop while working on land and to signal danger when slapped on the water. Beavers will also store fat in their tails, eating more in the fall so they can survive off the fat stored in their tails through winter if food is not available.
Explanation: