A new species is introduced to an ecosystem. Over several years, the

species biodiversity of the ecosystem decreases. Which statement

best explains this observation?

What source of energy typically starts all food chains?

Which of the following statements is true about the distribution and storage process for natural gas? A. Natural gas cannot be liquefied and transported into tanks. B. Natural gas is most often stored above ground after refining. C.

Is it true that Cells are the basics for all living things

Maria analyzed the different types of energy transformations involved in powering a train using coal as fuel as shown in the diagram below.

What type of allele will mask any subsequent alleles?

Which of the following would have the LEAST amount of momentum? A. a stationary boulder B. a boulder falling off a cliff C. a boulder rolling down a hill D. a boulder rolling along on a flat surface

How does the domain Eukarya differ from the other two domains? A) All organisms in the domain are heterotrophic. B) All organisms in the domain are multicellular. Eliminate C) All organisms in the domain have eukaryotic cells.

What would happen if your backbone and spinal cord was injured at your waist

Label the steps for protein synthesis in order, beginning with the first step. step onestep twostep threestep four step five Once the protein is made, the gene for a particular trait is expressed.

In humans, the ability to produce the pigment melanin is dominant over the lack of that ability, a condition known as albinism.