Answer the following question given this paragraph: An electromagnetic wave begins when an electrically charged particle vibrates. This causes a vibrating electric field, which in turn creates a vibrating magnetic field. The two vibrating fields together form an electromagnetic wave. Q: An electromagnetic wave begins with what movement by an electrically charged particle? Choices: - acceleration - diffusion - momentum - vibration A:
vibration
Answer the following question given this paragraph: Life is complex, and there are millions of species alive today. Many millions more lived in the past and then went extinct. Organisms include microscopic, single-celled organisms. They also include complex, multicellular animals such as you. Clearly, life science is a huge science. That's why a life scientist usually specializes in just one field within life science. Dr. Smith, for example, specializes in ecology. You can see the focus of ecology and several other life science fields in Table below . Click on the links provided if you want to learn about careers in these fields. Q: What do you call a species that has died out in the past? Choices: - endangered - inhabit - remnant - extinct A:
extinct
Q: Answer the following question given this paragraph: One problem with current methods of aluminum production is the generation of environmental contaminants. Hydrogen fluoride gas is an extremely corrosive and toxic byproduct that must be trapped and neutralized. Other fluorides and metals contaminants can also pollute water, soil, and air if not carefully managed. Q: What is one problem with current methods of aluminum production? Choices: - food shortages - competition - recycling is cheap - environmental contaminants A:
A: environmental contaminants
Question: Answer the following question given this paragraph: Adulthood is divided into the stages of early, middle, and late adulthood. Q: Adulthood is divided into how many stages? Choices: - two - four - five - three A:
Answer: three
*Question*
Answer the following question given this paragraph: Q: Which stage is specialized for dispersal & reproduction? Choices: - fetal stage - larval stage - cocoon stage - adult stage A:
**Answer**
adult stage
Answer the following question given this paragraph: Cytokinesis is the final stage of cell division in eukaryotes as well as prokaryotes. During cytokinesis, the cytoplasm splits in two and the cell divides. Cytokinesis occurs somewhat differently in plant and animal cells, as shown in Figure below . In animal cells, the plasma membrane of the parent cell pinches inward along the cell's equator until two daughter cells form. In plant cells, a cell plate forms along the equator of the parent cell. Then, a new plasma membrane and cell wall form along each side of the cell plate. Q: What is the final stage of cell division in eukaryotes as well as prokaryotes? Choices: - mitosis - electrolysis - anaphase - cytokinesis A:
cytokinesis