Why is it important to finish TB treatment? It is very important that people who have TB disease are treated, finish the medicine, and take the drugs exactly as prescribed. If they stop taking the drugs too soon, they can become sick again; if they do not take the drugs correctly, the TB bacteria that […]

What class of cnidarians is mostly corals and sea anemones? class Anthozoa Are sea anemones porifera? Poriferans (phylum Porifera) are sponges. These aquatic, asymmetrial animals are also sessile (unlike most animals). They are simple creatures, having no tissues. Jellyfish, hydra, coral, and sea anemones belong to phylum Cnidaria. What could a hydra eat? Hydra oligactis, […]

Why do two North magnets repel? The arrows always start at the magnet’s north pole and point towards its south pole. When two like-poles point together, the arrows from the two magnets point in OPPOSITE directions and the field lines cannot join up. So the magnets will push apart (repel). What causes magnetic repulsion? Opposites […]

Which of the following best defines adaptive radiation? Which is the best definition of adaptive radiation? An adaptive radiation occurs when a single lineage produces many ecologically diverse descendant species in a relatively short period of time. Why is bipedalism considered a Synapomorphy for Hominins the group that includes humans )? Why is bipedalism considered […]

How do neutrons make an atom stable? Thus unlike nucleons are attracted to each other and like one are repelled. A nucleus is held together by the spin pairing of the nucleons and the attraction of neutrons and protons for each other. Without a source for this additional energy the neutron cannot decay. Hence the […]

What is oxidation and reduction in terms of electron transfer? Oxidation is the loss of electrons or an increase in the oxidation state of an atom, an ion, or of certain atoms in a molecule. Reduction is the gain of electrons or a decrease in the oxidation state of an atom, an ion, or of […]

What is the relationship between ultraviolet UV radiation and production of vitamin D in humans? When your skin is exposed to sunlight, it manufactures vitamin D. The sun’s ultraviolet B (UVB) rays interact with a protein called 7-DHC in the skin, converting it into vitamin D3, the active form of vitamin D. What are the […]

Which of the following animals use dissolved oxygen for breathing? Fishes use a specialized organ called gills to breathe. They use the oxygen dissolved in water. Do fishes need oxygen? Fish, like all other complex life forms, need oxygen to survive. They get theirs in the form of oxygen gas dissolved in the water. Warm […]

How do I outsmart my competitors? 11 ways to outsmart, not outspend your competition Know thyself. Understand who you are and what you stand for as a brand. Know your audience. Learn about your buyers, clients and prospects. Don’t be everything to everyone. Stay focused. Put your people to work. Create evangelists, not just customers. […]

What forces act on a car at constant speed? For example, when a car travels at a constant speed, the driving force from the engine is balanced by resistive forces such as air resistance and friction in the car’s moving parts. The resultant force on the car is zero. a runner at their top speed […]