Biology

A:

Some examples of diurnal animals are humans, birds, pet dogs and cats, squirrels, elephants, gorillas, hawks, butterflies and honeybees. All of these animals are considered diurnal because they are mainly active during the day and asleep at night.

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  • Why is it important to classify organisms?

    Q: Why is it important to classify organisms?

    A: There are many reasons that classifying organisms is important, such as helping understand the genetic relationships between different groups and species, helping with wide studies of organisms and helping to develop new biological sciences such as biogeography. Each of the groups and sets are created by studying the differences and similarities found in species and organisms known.
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  • How do living things use lipids?

    Q: How do living things use lipids?

    A: Lipids, or fats, are used in living things in a wide variety of different ways, including energy storage and insulation. There are other beneficial properties that lipids can be used for, however, such as digestion and helping provide structure for certain parts of the structure of an organism's cells. In some living things, lipids are even part of the process by which hormones are formed in the body.
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  • What is the difference between fungus and bacteria?

    Q: What is the difference between fungus and bacteria?

    A: Fungi are multicellular, eukaryotic organisms, while bacteria are single-celled prokaryotes. The cells of fungi have nuclei that contain the chromosomes and other organelles, such as mitochondria and ribosomes. Bacteria are much smaller than fungi, do not have nuclei or other organelles and cannot reproduce sexually.
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  • What is the difference between a chrysalis and a cocoon?

    Q: What is the difference between a chrysalis and a cocoon?

    A: Chrysalis and cocoon are two physical objects that are made in the same phase of a butterfly or moth's life, however, a chrysalis refers to the casing that a butterfly makes when it transforms, whereas a cocoon is a woven case made by a moth during this stage to protect itself. The materials that a cocoon and a chrysalis are made of are also different.
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  • Where do turtles live?

    Q: Where do turtles live?

    A: Turtles inhabit virtually every terrestrial, aquatic and marine habitat in the world that is warm enough to permit activity. Turtles are residents of every continent except Antarctica and of all the world’s temperate and tropical oceans.
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  • What is the function of nematocysts?

    Q: What is the function of nematocysts?

    A: Nematocysts are specialized capsules that serve as homes for special cells called cnidoblasts, which typically contain poison or venom and help species within the phylum Cnidaria drive away enemies or catch prey. Nematocysts are relatively small cells and are found only in cnidarians, such as jellyfish, sea anemones and corals. Although small, nematocysts serve an important role in helping cnidarians feed and survive.
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  • What phylum do humans belong to?

    Q: What phylum do humans belong to?

    A: Humans belong to the phylum Chordata. Humans are part of this phylum, because they have a notochord when they are in the womb; this notochord will eventually turn into a spinal cord.
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  • What are the factors that affect human growth and development?

    Q: What are the factors that affect human growth and development?

    A: Genetic factors, lifestyle choices, medications, income, culture and gender affect human growth and development. The genetic factors allude to the genes that are inherited. Lifestyle choices include diet and work patterns.
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  • What is the definition of fungi?

    Q: What is the definition of fungi?

    A: The fungi are a kingdom in the eukaryote domain. Fungi are important decomposers in all ecosystems because they can break down a wide variety of organic matter. Lignin, a component of wood, would not get broken down without fungal decomposers, so the nutrients would not be recycled.
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  • In what part of the body does mitosis occur?

    Q: In what part of the body does mitosis occur?

    A: Mitosis occurs in every single cell that makes up the entire body. It occurs in the tissues and organs to help replace cells that have been lost as a result of normal wear and tear on the body.
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  • What is an example of a producer?

    Q: What is an example of a producer?

    A: In biology, plants are the most popular examples of producers. Other examples include algae, seaweed, phytoplankton and some bacteria are also producers. Good examples include cyanobacteria and green and purple sulfur bacteria.
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  • Which food group do mushrooms fit into?

    Q: Which food group do mushrooms fit into?

    A: Mushrooms are fungi that grow in the dark and release spores to replicate themselves. Mushrooms are usually sold in the vegetable sections of grocery stores. However, they are not true vegetables because they do not have leaves, seeds or roots.
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  • How does a great white shark protect itself?

    Q: How does a great white shark protect itself?

    A: Great white sharks have many tools with which to protect themselves, such as powerful jaws, unique scales and efficient eyes. The shark has, in fact, evolved to be both a fierce predator and a defensible fortress.
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  • What are the advantages and disadvantages of biotechnology?

    Q: What are the advantages and disadvantages of biotechnology?

    A: The advantages of biotechnology include curing infectious diseases, creating more efficient fuels and increasing farming yields to feed more people. Disadvantages of biotechnology include antibiotic resistant bacteria, new allergic reactions and higher prices for farmers.
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  • How high can a killer whale jump out of the water?

    Q: How high can a killer whale jump out of the water?

    A: A killer whale, or orca, can jump between 10 and 15 feet out of the water. One of the highest whale jumps caught on film is that of an orca jumping 15 feet while chasing a dolphin.
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  • Why were blood tests required before marriage?

    Q: Why were blood tests required before marriage?

    A: Premarital blood tests have been used to check people getting married for syphilis, rubella, HIV and sickle-cell anemia. The objective of such tests was to ensure the infected person got treated prior to infecting his or her partner or child. In the United States, premarital blood laws were enacted during the 1930s and 1940s when syphilis was considered a potential public health concern.
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  • What are the main differences between mitosis and meiosis?

    Q: What are the main differences between mitosis and meiosis?

    A: Though both meiosis and mitosis involve the division of a cell, meiosis generates a cell used for sexual reproduction, while mitosis generates a cell used for growth. Mitosis produces two cells that are identical to the parent cell. Meiosis produces four cells that each contain half the number of chromosomes of the parent cell. Chromosomes are DNA containing genetic information.
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  • What is the definition of "neurological sequelae"?

    Q: What is the definition of "neurological sequelae"?

    A: Neurological sequelae are medical conditions associated with damaged neurons resulting from a previous disease, injury or other trauma. The Latin word sequela means "sequel" or "follow." For example, if a person suffers damage or injury to her spinal cord, a neurological sequelae may be complete or partial paralysis of her limbs and/or torso. This condition is known as tetraplegia.
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  • What are some characteristics of a Volvox?

    Q: What are some characteristics of a Volvox?

    A: Characteristics of a Volvox include the fact that each cell contains two flagella, which aids in movement through water, and the colonies reproduce asexually. The cells of a Volvox are held together by protoplasm strands.
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  • What is an example of commensalism?

    Q: What is an example of commensalism?

    A: One example of commensalism is the relationship between Patiria miniata, known as the Bat star, and a segmented worm called Ophiodromus pugettensis. The star has several grooves protruding from its mouth. Some Ophiodromus pugettensis worms live inside these grooves, but they do not harm the starfish.
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  • What are the seven classifications in science?

    Q: What are the seven classifications in science?

    A: The seven classifications of science are kingdom, phylum, class, order, family, genus and species. These classifications are nested; for instance, organisms must be in the same kingdom to be in the same phylum.
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