Answer:
The ozone layer's status today
And at the end of 2018, the United Nations confirmed in a scientific assessment that the ozone layer is recovering, projecting that it would heal completely in the (non-polar) Northern Hemisphere by the 2030s, followed by the Southern Hemisphere in the 2050s and polar regions by 2060.
Answer:
The fossils remains of arthropods, Echinoderms, Mollusk and other bilaterians appeared in Cambrian period and throughout the Paleozoic era.
Explanation:
Trilobites were marine group of arthropods that appeared in the Cambrian Period around 55.6 million years ago, eventually becoming extinct during the Permian Period. Most of the organisms were small, bottom-dwelling organisms that had fed on small organic matters in sediment on the sea bottom. The body is divided in three segments: head (cephalon), middle (thorax), and tail (pygidium). Many species had large, compound eyes. Fossils had define characters of having body divided in to head,thorax,and tail. Body had segmentation and citineious body layer.
Answer:
ever wonder if your dog really really loves you — or if he’s just in it for the kibbles?
Alas, scientists haven’t figured out exactly how our dogs feel about us. But a study published this week in the journal PLOS One has yielded fresh insight into how dogs see us. It adds to existing research showing that — much like humans, other primates and even goats — our canine friends use specific regions of their brain to “process” our faces.
“Our study provides evidence that human faces are truly special for dogs, as it involves particular brain activity,” study co-author Dr. Luis Concha, an associate professor at the National Autonomous University of Mexico’s Institute of Neurobiology, told The Huffington Post in an email. “To dogs, the human face is no ordinary thing.”
Explain:
PET scan used to examine the glucose usage of the cell. Since the area of stroke doesn't get blood flow, their glucose usage will be decreased. The PET scan will be decreased on left Broca area as it was the part that responsible for speech. Sam will have difficulty to speak. The prognosis wouldn't be good as the patient age is old and their brain already stop developing.
Generally a single layer of cells<span>. They are tightly packed and covered with a </span>trans<span>parent, waxy, material called the </span>cuticle<span>. </span>
