SCIENCE FINAL PAGE 3

    Master this deck with 38 terms through effective study methods.

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    Created by @colettef31

    What are Jovian planets?

    They are primarily composed of gas and ice.

    What defines asteroids?

    They are metallic and rocky objects orbiting a star.

    What are comets made of?

    They consist of ice, rock, and dust.

    What are meteoroids?

    They are small fragments and debris in space.

    What is a solar system?

    It includes a star and all objects bound to it by gravity.

    How did the solar system form?

    It formed from a disk of dust and gas due to gravity.

    What is gravity?

    It is the force attracting any two objects with mass.

    What affects gravitational attraction strength?

    It depends on the mass of the objects and their distance.

    What is weight?

    It measures the gravitational pull on an object.

    What is an orbit?

    It results from the interaction of inertia and gravity.

    What is photosynthesis?

    It converts light energy into chemical energy in chloroplasts.

    What defines a cell?

    It is the smallest organized unit in living organisms.

    What do all cells do?

    They grow, take in energy, respond, and reproduce.

    What is cellular respiration?

    It uses oxygen to break down food for energy.

    What are the levels of cellular organization?

    They include cell, tissue, organ, organ system, and organism.

    What is a common ancestor?

    It is an organism from which several others have descended.

    What is a trait?

    It is an inherited characteristic of an organism.

    What are chromosomes?

    They are DNA structures containing many genes.

    What is asexual reproduction?

    It produces offspring that are clones of one parent.

    What is sexual reproduction?

    It combines chromosomes from male and female parents.

    What is an allele?

    It is a different form of a gene.

    What are dominant traits?

    They are expressed when the dominant allele is present.

    What are recessive traits?

    They are expressed only with two recessive alleles.

    What do mutations do?

    They create new traits, some beneficial and others harmful.

    What is crucial for a species' survival?

    The ability to reproduce is essential.

    What happens during mitosis?

    The nucleus and contents duplicate and divide into two cells.

    What is meiosis?

    It produces four sex cells through nuclear division.

    What is natural selection?

    It favors organisms that survive and reproduce better.

    What occurs during fertilization?

    Sperm and egg chromosomes unite.

    What is a habitat?

    It is any place where an organism lives.

    What defines an ecosystem?

    It is a system of biotic and abiotic factors.

    What are abiotic factors?

    They are non-living parts of an ecosystem.

    What are biotic factors?

    They are living organisms in an ecosystem.

    What is the ultimate energy source in an ecosystem?

    The sun provides all energy.

    What is the biosphere?

    It is the part of Earth where life exists.

    What is matter?

    It is anything that has mass and occupies space.

    What is carrying capacity?

    It is the maximum population size an ecosystem can support.

    What is population density?

    It measures individuals present in a specific area.