Which term describes a living organism's position in the flow of energy through an ecosystem?

A. trophic level

B. food web

C. biotic factor

D. energy pyramid

Which is a sustainable practice? A. wind farms B. clear cutting C. flood irrigation D. overfishing

What process is considered to be growth when it occurs in multicellular organism reproduction when it occurs in a unicellular organism?

Why is clean coal technology a temporary solution? A. Because it's impossible to reduce the amount of pollution caused by burning coal B. Because coal is a non-renewable fossil fuel that will run out someday C.

What are the two main organs of the cardiorespiratory system?

Which part of the spinal cord contains dendrites, axons that aren't myelinated and the cell bodies of Neutrons?

One of the primary functions of DNA in cells is to A. Serve as a storage firm for unused nucleotides B. Occupy space in the nucleus to keep the nucleus from collapsing C. Copy itself exactly for new cells

What feature do lymphatic vessels share with veins that allows lymph to flow in only one direction?

The negative stain is used to the negative stain is used to determine cell size. visualize endospores. determine flagella arrangement. visualize the outer membrane. determine gram reaction.

The visible part of the ear has the ability to stretch significantly, and then recoil back to its original position. Which protein fiber must be present?

Which cellular process takes place in the ribosome that are bound to the endoplasmic reticulum