Q. What 7 characteristics do all living organisms share?
They move, breathe, respond to their internal and external environments, grow and develop, reproduce, excrete waste, and require nutrition.
Q. Define movement.
An action by an organism causing a change of position.
Q. Define respiration.
The chemical reactions in cells that break down nutrient molecules and release energy for metabolism.
Q. Define sensitivity.
The ability to detect and respond to changes in the internal or external environment.
Q. Define growth.
A permanent increase in size and dry mass.
Q. Define reproduction.
The processes that make more of the same kind of organism.
Q. Define excretion.
The removal of the waste products of metabolism and substances in excess of requirements.
Q. Define nutrition.
The taking in of materials for energy, growth and development.
Q. Why are viruses not living?
They don't have all the 7 characteristics of living organisms.
Q. Define species.
A group of organisms that can breed to produce fertile offspring.
Q. Give 2 ways that organisms can be classified.
Physical characteristics and evolutionary connections.
Q. How are modern classification techniques more accurate?
Biochemical and genetic analysis gives a more precise and detailed understanding about the relationships of organisms.
Q. How can organisms that share recent common ancestors be identified?
Analyze the organism's DNA; matching it with similar DNA sequences often reveals shared common ancestors.
Q. What are the 5 kingdoms?
Animal, Plant, Fungus, Prokaryote, Protoctist.
Q. Give 3 advantages of the binomial naming system.
- It is universal.
- It provides information about closely linked organisms along with their traits.
- It allows for precise naming.
Q. State the features that all cells share.
Cytoplasm, cell membrane, DNA, ribosomes and enzymes for respiration.
Q. What are the 2 broad groups of animals?
Vertebrates and invertebrates.
Q. What is the difference between vertebrates and invertebrates?
Vertebrates have a backbone whereas invertebrates don't.
Q. What are the 5 main groups of vertebrates?
Mammals, Birds, Reptiles, Amphibians, and Fish.
Q. What is an arthropod?
An invertebrate with an exoskeleton.
Q. What are the 4 main groups of arthropods?
Myriapods, Insects, Arachnids, Crustaceans.
Q. What are the 2 broad groups of plants?
Flowering and non-flowering
Q. What are the 2 main groups of flowering plants?
Monocotyledons and dicotyledons
Q. What is the difference between monocotyledons and dicotyledons?
Monocotyledons have only one embryonic leaf, known as a cotyledon, while dicotyledons contain two cotyledons.
Q. What are dichotomous keys?
They are resources that are used to identify organisms by asking a series of contrasting questions.
No comments:
Post a Comment