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What are some examples of herbivores?

Many people think that herbivores must eat the same food every day, but herbivores actually eat a variety of plant foods. It depends on the kind of herbivore. Grazers are herbivores who eat grass and other small plants that are found on or near the ground. An example of a grazer is a squirrel. Browsers are herbivores who eat leaves off of plants, shoots and twigs. Browsers eat primarily food that is higher up in the air. Some of the largest herbivores are both grazers and browsers including elephants, moose and rhinos.Herbivores have ridges in their teeth that make it easier for them to chew f..

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What is the difference between a tablespoon and a teaspoon?

Tablespoons and teaspoons are names for two of the different types of spoons that may appear in a table setting as well. A teaspoon is 5.5 to 6.25 inches long and is used in informal dining for stirring a hot beverage like coffee or tea, sipping soup or eating solid food. A tablespoon is larger, and it is used as a serving spoon or for eating out of a bowl.

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What is the anatomy of the skull?

The cranial bones of the skull form a roof and base. The cranial roof covers the top portion of the cranium, and the base of the cranium cups the brain and opens to support the spine. The facial portion of the skull contains 14 bones. Its structure holds the oral and nasal cavities, the sinuses and eye sockets. The jaw bone, or mandible, contains a joints that connect the facial skeleton to the base of the cranium. Fibrous joints called sutures fuse together the bones of the skull, which remain pliable to adjust to brain growth until adulthood.

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What challenges did early land plants face?

The first plants evolved in ecosystems that were suspended in water. Accordingly, they relied on this constant resource for survival. Primitive plants used the water to disperse their spores and as a medium through which sperm cells could swim to egg cells. Incidentally, the water helped to support the plants and keep them hydrated. The evolution of vascular systems helped plants to transport water throughout their structures and to remain stable by using the pressure created by the water for support. To overcome the difficulties of spore dispersal, plants evolved many different types of spore..

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What is thermal expansion?

According to Encyclopædia Britannica, when the material that is heating up is solid, thermal expansion usually causes a change in the length or thickness of the substance. Crystalline solids with the exact same structural configuration throughout expand uniformly in all dimensions. If the material is a liquid, its volume increases during thermal expansion. The forces that bond molecules and atoms are different for each substance, so the type of change that occurs in substances during thermal expansion always differs.\nThe opposite of thermal expansion is thermal contraction, which causes a su..

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What is some info about the sun?

The diameter of the sun is around 870,000 miles. Its surface temperature is 10,472 degrees Fahrenheit, and the core temperature is around 27,000,000 degrees F.\nBesides the core, the three main features of the sun are the photosphere, the chromosphere and the corona. The photosphere is the surface of the sun and is made up of firestorms that can be 600 miles wide. Other features of the photosphere are solar flares and sunspots, which are cooler areas on the surface. The chromosphere is a thin layer above the photosphere that contains glowing gas spicules, fibrils and huge, fiery prominences. A..

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What are the different kinds of leaves?

Palmate leaves are composed of small leaflets that connect at a shared point and spread out like the fingers on a hand. Pinnate leaves have a center nerve, the midrib, with attached nerves that fan out like a plume. Bipinnate leaves are pinnate leaves that are divided into two halves.\nLeaves with wavy edges are called sinuate leaves, while the edges of entire leaves are smooth. The edges of dentate leaves look like teeth, and serrate leaves are saw-like. Lobed leaves have rounded divisions that do not reach the center. Blades that are shaped like spears are called lanceolate, and blades shape..

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What are the names of the rocky planets ?

The composition of rocky, terrestrial or telluric planets consists of silicate rocks or metals. These planets differ from gas giants because of their solid surfaces and overall structure. The structure of a rocky planet includes a metallic core, usually iron, and a silicate mantle with canyons, craters, volcanoes, mountains and other typical features. Rocky planets also have secondary atmospheres produced by volcanic activity or comet impacts, while gas giants have primary atmospheres gained during the planet's original formation. Rocky planets also have similar densities to Earth.\nThe m..

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Why does the luminosity of a star depend on both its radius and its temperature?

Stars are large, thermonuclear reactions that release incredible amounts of energy. Scientists that study stars measure this energy and call it luminosity. Luminosity is typically measured in the amount of energy produced in a given unit of time, such as joules per second. As an example, the sun produces about 500 million million million mega joules of energy per second.\nGiven that the two stars are similar, one that is twice the size of the other has four times the amount of surface area. Accordingly, the larger star produces four times the energy of the smaller star. Temperature causes chan..

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Are fossil fuels renewable?

Fossil fuels are formed over millions of years in Earth's crust out of the carbon that makes up decaying biomass from dead plants and animals. Coal is formed from the remains of dead plants, while crude oil and natural gas originate from the remains of sea organisms. Though this process is ongoing, the slow rate of production is far outpaced by human consumption.

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