5 Written questions
5 Matching questions
- root hair
- a An outgrowth of a plant root that provides an increased surface area for the absorption of water and dissolved minerals from the soil.
- b A firm but flexible substance, found in regions of vertebrate skeletons, such as the ribs, that need to bend.
- c The process by which plants and other autotrophic organisms convert light energy into organic materials, such as glucose.
- d Organisms that can only get the organic molecules and energy necessary for life through the consumption of other organic matter. In the food web, all consumers and decomposers are heterotrophs. Heterotrophs can be herbivores, carnivores, or omnivores.
- e Fleshy underground storage structure composed of an enlarged portion of the stem that has on its surface buds capable of producing new plants.
5 Multiple choice questions
- Literally, zone without light. The aphotic zone is part of the marine pelagic zone and begins 600 feet below the surface of the ocean. Only chemosynthetic organisms, scavengers, and predators are able to survive in this habitat.
- Bodily structures that developed in the past but no longer serve any function for an organism.
- Roughly spherical underground bud containing additional buds that can develop asexually into new plants.
- A flowering plant (angiosperm) that possesses two cotyledons during embryonic development. Usually has taproots, flower parts in multiples of fours and fives, and branching veins in leaves.
- One half of the motor system of the peripheral nervous system. Responsible for voluntary, or conscious, movement. Neurons in this system target skeletal muscles and release the neurotransmitter acetylcholine.
5 True/False questions
pollen → The male gametophyte of gymnosperms and angiosperms.
parthenogenesis → Synthesizing organic compounds by energy derived from chemical reactions rather than from the energy of the sun. Chemosynthetic organisms are autotrophs.
hypertonic → A situation in which the concentration of solutes in a solution is lower than what an organism contains. An example is a paramecium in pond water: the organism has more solutes than its environment, so water flows into the cell by osmosis. Paramecia have evolved contractile vacuoles to keep from exploding.
intertidal zone → The medium depth zone of the marine biome. Extends to 600 feet beneath the water's surface and sits on the continental shelf, hundreds of miles from any shore. Algae, crustaceans, and fish inhabit this region.
chitin → A rough polysaccharide that constitutes the cell wall of fungi and exoskeleton of arthropods.