Categories
Biology

The table lists some organelles and functions. Only one pair is correctly matched.

QUESTION The table lists some organelles and functions. Only one pair is correctly matched. Organelle Function Lysosome Stores water and waste materials Vacuole Breaks down sugars Mitochondrion Breaks down waste materials and debris Ribosome Produces proteins for the cell Which organelle in the table is correctly matched with its function? A) Lysosome B) Vacuole C) […]

Categories
Biology

Which statement best distinguishes the light-dependent (L-D) reactions from the light-independent (L-IND) reactions?

QUESTION Which statement best distinguishes the light-dependent (L-D) reactions from the light-independent (L-IND) reactions? A) The L-D reactions occur in the thylakoid membrane, and the L-IND reactions occur in the stroma. B) The L-D reactions occur in the cytoplasm, and the L-IND reactions occur in the chloroplast. C) The L-D reactions occur in the chloroplast, […]

Categories
Biology

Which of the following best describes energy transformations in ecosystems?

QUESTION Which of the following best describes energy transformations in ecosystems? A) Most energy in a lower trophic level is passed to higher trophic levels. B)Heat is not a significant waste product as energy passes between trophic levels. C) Most of the energy collected by an organism is not passed on to other organisms. D) […]

Categories
Biology

Energy must be transformed in ecosystems because _______.

QUESTION Energy must be transformed in ecosystems because _______. A) energy cannot be created or destroyed B) an organism’s energy must go somewhere C) an organism’s energy must come from somewhere D) all of the above ANSWER The correct option is D) all of the above.

Categories
Calculus Mathematics

If a line falls from left to right its has ________ slope

QUESTION If a line falls from left to right its has ________ slope ANSWER negative

Categories
Calculus Mathematics

Symmetric with respect to the origin means

QUESTION Symmetric with respect to the origin means ANSWER The graph is unchanged by a rotation of 180* about the origin

Categories
Calculus Mathematics

Symmetric with respect to the x-axis means

QUESTION Symmetric with respect to the x-axis means ANSWER a mirror image of the portion below (above) the x-axis

Categories
Calculus Mathematics

A graph is symmetric with respect to the x-axis if, whenever (x,y) is a point on the graph, (x,-y) is also a point on the graph.

QUESTION A graph is symmetric with respect to the x-axis if, whenever (x,y) is a point on the graph, (x,-y) is also a point on the graph. ANSWER (x,-y)

Categories
Electric Current Physics

Moving 4.0 coulombs of charge through a circuit requires 48 joules of electric energy. What is the potential difference across this circuit?

QUESTION Moving 4.0 coulombs of charge through a circuit requires 48 joules of electric energy. What is the potential difference across this circuit? ANSWER 12 V

Categories
Electric Current Physics

An MP3 player draws a current of 0.120 ampere from a 3.00-volt battery. What is the total charge that passes through the player in 900. seconds?

QUESTION An MP3 player draws a current of 0.120 ampere from a 3.00-volt battery. What is the total charge that passes through the player in 900. seconds? ANSWER 108 C