How water and minerals are absorbed by the roots of a plants? Plants absorb water from the soil by osmosis. They absorb mineral ions by active transport, against the concentration gradient. Root hair cells are adapted for taking up water and mineral ions by having a large surface area to increase the rate of absorption. […]

What causes new ocean floor? As plates converge, one plate may move under the other causing earthquakes, forming volcanoes, or creating deep ocean trenches. Where plates diverge from each other, molten magma flows upward between the plates, forming mid-ocean ridges, underwater volcanoes, hydrothermal vents, and new ocean floor crust. Why does the horizon look higher? […]

What are the 2 types of fats? Types of Fats Saturated fat. Saturated fat is solid at room temperature, which is why it is also known as “solid fat.” It is mostly in animal foods, such as milk, cheese, and meat. Trans fat. This is a fat that has been changed by a process called […]

How do species become adapted to new niches? If a niche is “empty” (no organisms are occupying it), new species are likely to evolve to occupy it. This happens by the process of natural selection. By natural selection, the nature of the species gradually changes to become adapted to the niche. Grasses were evolving, and […]

How many years ago did flowering plants evolve? 130 million years During which era did flowering plants become common? Lower Cretaceous What bushes bloom all year? 31 Flowering Shrubs for Year-Round Color Fothergilla. Bottlebrush-like blooms open at branch tips in early spring, before leaves appear. Azalea. Spring explodes with color when you include azaleas in […]

What kind of birds live in wetlands? Seasonal wetlands, for example, may contain water only during wet periods in the spring and fall. All wetlands, however, are important to wildlife. Waterfowl, shorebirds, wading birds, raptors, loons, grebes, cranes, wood- cock, kingfishers, and many songbirds depend on wetlands during all or part of their life cycles. […]

What is the 4th degree of consanguinity? (i) First-degree relatives include an individual’s parents, siblings, and children. (iv) Fourth-degree relatives include an individual’s great-great-grandparents, great-great-grandchildren, and first cousins once-removed (i.e., the children of the individual’s first cousins). Can fourth cousins marry? It’s legal in all 50 states to marry a cousin who’s your second cousin […]

Is dog crying a bad sign? In our society since ancient times, it is believed that when someone is about to die, the dogs start crying because they already realize this. There is a similar belief that a dog is bad at crying. That is a bad omen. According to astrology, when dogs see a […]

What happens when you stimulate alpha 2 receptors? Alpha 2 receptors in the brain stem and in the periphery inhibit sympathetic activity and thus lower blood pressure. Alpha 2 receptor agonists such as clonidine or guanabenz reduce central and peripheral sympathetic overflow and via peripheral presynaptic receptors may reduce peripheral neurotransmitter release. Why do alpha-2 […]

Which combination is an element How do you know? Answer: A compound is a substance formed when two or more elements are chemically joined. Water, salt, and sugar are examples of compounds. When the elements are joined, the atoms lose their individual properties and have different properties from the elements they are composed of. How […]