Ecologists study:   A.  Living things and their genetic makeup B.  Genetic patterns and the chemistry in them C.  The physical world and its processes.

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Presentation transcript:

Ecologists study:   A.  Living things and their genetic makeup B.  Genetic patterns and the chemistry in them C.  The physical world and its processes D.  The Earth and its processes E.  Relationships between organisms and their environment

A. Mass is a component of matter. .How are matter and mass related?   A.  Mass is a component of matter. B.  Neither matter nor mass take up space. C.  Matter is a component of mass. D.  Both matter and mass take up space. E.  Mass takes up space, while matter does not take up space.

What implication(s) does the law of conservation of matter have for humans?   A.  We cannot create energy because it is neither created nor destroyed. B.  As matter is recycled, it loses some of its integrity, so we need to be careful when we dispose of goods. C.  Natural resources are unlimited because they are used and reused by living organisms. D.  Disposable goods are not going "away" when we throw them out. E.  All of these are implications of the law of conservation of matter.

The law of conservation of matter tells us that matter:   A.  Can never be reused B.  Needs to be conserved or it will not be available for future generations C.  Can be destroyed D.  Can be conserved by some adaptive strategies E.  Is used repeatedly

The smallest particle that exhibits the characteristics of a chemical element is known as a(n):   A.  Molecule B.  Microorganism C.  Atom D.  Phase of matter E.  Isotope

A compound is composed of _________.   A.  Elements B.  Isotopes C.  Atoms D.  Molecules

Which of the following is NOT a type of organic molecule?  A. Nucleic Acids B. Carbohydrates C. Proteins  D. Salts E. Lipids

A cell is:   A.  The smallest molecule exhibiting organic characteristics B.  A building block for DNA C.  A small organic compound made of carbon, water, and nitrogen D.  Made up of DNA E.  The smallest unit in which life processes go on

Metabolism is a collective term for thousands of:   A.  Organic compounds in a cell B.  Enzymatic reactions necessary for life C.  Cells in an organism D.  Molecular reactions in a cell

The first law of thermodynamics and the law of conservation of matter are similar in that   A.  Under normal circumstances neither energy nor matter is created nor destroyed. B.  Both energy and matter flow in a one-way path through biological systems. C.  Under normal circumstances energy and matter are created as they pass through biological systems. D.  The first law of thermodynamics and the law of conservation of matter are not similar.

The second law of thermodynamics states that as energy moves through different forms and systems, it gradually:   A.  Becomes more concentrated B.  Dissipates and becomes unavailable C.  Disappears and is lost D.  Accumulates in the form of electricity E.  Changes from kinetic to potential energy

As energy is used and transformed, it gradually becomes _______ quality and _______ concentrated.   A.  Higher; more B.  Lower; more C.  Higher; less D.  Lower; less E.  As energy is used, it does not become transformed; there is no change in quality, and it stays the same concentration

As energy is used and transformed, it gradually becomes _______ quality and _______ concentrated.   A.  Higher; more B.  Lower; more C.  Higher; less D.  Lower; less E.  As energy is used, it does not become transformed; there is no change in quality, and it stays the same concentration

About ___________ percent of the solar energy that falls on plants is captured for photosynthesis.  

Photosynthesis produces sugars from   A.  Water, carbon dioxide, and solar energy B.  Water, other sugars, and oxygen C.  Oxygen, carbon dioxide, and water D.  Carbon dioxide, enzymes, and solar energy E.  Oxygen, water, and solar energy

The process of photosynthesis and cellular respiration are similar as that they both   A.  Capture energy in the form of sugar B.  Occur in all living organisms C.  Store energy in the form of ATP D.  Capture energy from the sun E.  Photosynthesis and cellular respiration are not similar, they are opposite processes

The process of __________ allows organisms to use inorganic molecules as an energy source.  A. chemosynthesis B. cellular respiration C. photosynthesis D. phosphorylation 

Although there are exceptions, in general, a species includes all organisms that are similar enough to:   A.  Produce fertile offspring in nature B.  Look alike C.  Fill the same niche D.  Occupy the same community E.  Live together

If an ecosystem exchanges both matter and energy with its surroundings, it would be referred to as a(n) ______ system.  A. Closed B. Open C. Dynamic D. Isolated E. Interactive

Which of the following biogeochemical cycles does not have an atmospheric phase?  A. Hydrologic cycle B. Nitrogen cycle C. Sulfur cycle D. Carbon cycle E. Phosphorous cycle