Biology 11
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each of the black spaces below before clicking
on it to display the answer.
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| Asexual Reproduction | Asexual reproduction is a mode of reproduction by which offspring arise from a single organism, and inherit the genes of that parent only; it is reproduction which almost never involves ploidy or reduction.
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| Cell | the smallest structural and functional unit of an organism, typically microscopic and consisting of cytoplasm and a nucleus enclosed in a membrane. Microscopic organisms typically consist of a single cell, which is either eukaryotic or prokaryotic.
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| Cephalization | the concentration of sense organs, nervous control, etc., at the anterior end of the body, forming a head and brain, both during evolution and in the course of an embryo's development.
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| Closed Circulatory system | Closed circulatory systems have the blood closed at all times within vessels of different size and wall thickness. In this type of system, blood is pumped by a heart through vessels, and does not normally fill body cavities.
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| Coelom | the body cavity in metazoans, located between the intestinal canal and the body wall.
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| Colonial | a colony refers to individual organisms of the same species living closely together, usually for mutual benefit, such as stronger defense or the ability to attack bigger prey.
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| Fluid Feeding | Fluid feeders are organisms that feed on the fluid of other organisms. It can refer to: Hematophagy, feeding on blood. Nectarivore, feeding on nectar.
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| Endoskeleton | an internal skeleton, such as the bony or cartilaginous skeleton of vertebrates.
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| Excretion | the process of eliminating or expelling waste matter.
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| Exoskeleton | a rigid external covering for the body in some invertebrate animals, especially arthropods, providing both support and protection.
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| Filter Feeding | feeding by filtering out plankton or nutrients suspended in the water.
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| Free-living | living freely and independently, not as a parasite or attached to a substrate.
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| open circulatory system | Closed circulatory systems have the blood closed at all times within vessels of different size and wall thickness. In this type of system, blood is pumped by a heart through vessels, and does not normally fill body cavities.
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| Invertebrates | an animal lacking a backbone, such as an arthropod, mollusk, annelid, coelenterate, etc.
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| Levels of Organization | The biological levels of organization of living things arranged from the simplest to most complex are: organelle, cells, tissues, organs, organ systems, organisms, populations, communities, ecosystem, and biosphere.
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| Sessile | attached directly by its base without a stalk or peduncle.
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| Medusa | a free-swimming sexual form of a coelenterate such as a jellyfish, typically having an umbrella-shaped body with stinging tentacles around the edge. In some species, medusae are a phase in the life cycle that alternates with a polypoid phase.
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| Tissue | any of the distinct types of material of which animals or plants are made, consisting of specialized cells and their products.
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| Vertebral Column | Also known as the backbone or spine, is a bony skeletal structure found in vertebrates. It is formed from individual bones called vertebrae (singular: vertebra), which houses the spinal canal, a cavity that encloses and protects the spinal cord.
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