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Questions and Answers
Which of the following characteristics is not associated with arachnids?
Which of the following characteristics is not associated with arachnids?
Which statement about protoctists is accurate?
Which statement about protoctists is accurate?
What is the function of the diaphragm during inhalation?
What is the function of the diaphragm during inhalation?
Which of the following is a common feature of fungi?
Which of the following is a common feature of fungi?
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What primary advantage does monoculture provide in agricultural practices?
What primary advantage does monoculture provide in agricultural practices?
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During exhalation, which statement is correct regarding muscle activity?
During exhalation, which statement is correct regarding muscle activity?
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Which feature distinguishes insects from other arthropods?
Which feature distinguishes insects from other arthropods?
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Select the true statement about prokaryotes:
Select the true statement about prokaryotes:
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Study Notes
Arthropods Classification
- Crustaceans: Mostly sea creatures, have antennae and many legs (e.g., crabs)
- Arachnids: Eight legs, two body parts, no antennae (e.g., spiders)
- Insects: Wings, six legs, three body parts, one pair of antennae (e.g., ladybugs)
- Myriapods: Many legs and body segments, one pair of antennae (e.g., centipedes)
Main Features of Different Biological Groups
- Animals: Multicellular, cells have a nucleus, no cell walls or chloroplasts, consume organic substances.
- Plants: Multicellular, cells have a nucleus, chloroplasts, and cell walls; obtain energy through photosynthesis.
- Fungi: Usually multicellular, cells have nuclei and cell walls (not cellulose), feed through saprophytic processes.
- Protoctists: Primarily unicellular, but some are multicellular, all cells contain a nucleus, some have cell walls and chloroplasts, and some feed through photosynthesis or by consuming organic matter.
- Prokaryotes: Commonly unicellular, cells have cell walls and cytoplasm, but lack a nucleus and mitochondria.
Respiratory System Explanation
- Respiration begins with inhaling oxygen.
- Oxygen travels through the mouth or nose, then the larynx and pharynx.
- Air passes through the trachea, which has C-shaped rings for protection and to keep it open.
- The trachea branches into bronchi then bronchioles leading to alveoli.
- Oxygen is absorbed and carbon dioxide is released during the respiration process.
Human Influence on the Ecosystem: Advantages and Disadvantages of Monoculture and Livestock Farming
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Advantages:*
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Monoculture: Increased efficiency, ease of management, potential for higher earnings.
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Livestock Farming: Controlled environment allows for increased production of meat, milk, or eggs in a shorter period. Allows for selective breeding.
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Selective Breeding: Higher crop yields, development of new plant varieties, organisms resistant to diseases.
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Disadvantages:*
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Monoculture: Increased risk of disease and pest outbreaks, decreased soil quality.
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Livestock Farming: Waste generation that can pollute soil and water, faster spread of diseases.
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Selective Breeding: Reduced diversity in populations, potential loss of certain desirable traits.
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Description
This quiz explores the classification of arthropods, including crustaceans, arachnids, insects, and myriapods. It also covers the main features of various biological groups such as animals, plants, fungi, protoctists, and prokaryotes. Test your knowledge on the diversity and characteristics of these life forms.
