Answer the following question given this paragraph: Most of the stars pictured in this view of the night sky are hundreds of light years from Earth. A light year is the distance that light can travel in a year, or about 6 trillion (6,000,000,000,000) miles. As this example shows, quantities in science may be very large. Many other quantities in science are very small. Both very large and very small numbers have many zeroes, so they are hard to read and write without making mistakes. That's where scientific notation comes in. Q: The distance that light can travel in a year is known as what? Choices: - earth year - beam year - solar year - light year A:
light year
Answer the following question given this paragraph: It could easily be said that a cell is the fundamental unit of life, the smallest unit capable of life or the structural and functional unit necessary for life. But whatever it is, a cell is necessary for life. The Cell Biology chapter will discuss some of the fundamental properties of the cell, with lessons that include the cell structure, transport in and out of the cell, energy metabolism, and cell division and reproduction. Q: What can be thought of as the fundamental unit of life? Choices: - ion - atom - electron - cell A:
cell
Q: Answer the following question given this paragraph: Prophase I: Chromosomes form, and the nuclear membrane breaks down. Centrioles move to opposite poles of the cell. Spindle fibers form between the centrioles. Here's what's special about meiosis : Homologous chromosomes pair up! You can see this in Figure below . Q: Spindle fibers form between the centrioles during prophase i of what process? Choices: - mitosis - hydrolysis - photosynthesis - meiosis A:
A: meiosis
Question: Answer the following question given this paragraph: We breathe because we need oxygen. Breathing also releases carbon dioxide from our bodies into the air. The respiratory system is the body system that brings air containing oxygen into the body and releases carbon dioxide into the atmosphere. Recall that oxygen is needed to make ATP. Q: Which system of the body is responsible for bringing air into the body? Choices: - vascular system - excretory system - digestive system - respiratory system A:
Answer: respiratory system
*Question*
Answer the following question given this paragraph: Mercury is extremely hot and has a liquid metal core. Q: What kind of core does mercury have? Choices: - solid metal - gas - dense metal - liquid metal A:
**Answer**
liquid metal
(Question)
Answer the following question given this paragraph: Mollusks have ventral nerve cords. The tissue beneath the shell is called the mantle. The mantle cavity contains hemolymph. Figure 15.33 Which of the following statements about common features of chordates is true? a. The dorsal hollow nerve cord is part of the chordate central nervous system. In vertebrate fishes, the pharyngeal slits become the gills. Humans are not chordates because humans do not have a tail. Vertebrates do not have a notochord at any point in their development; instead, they have a vertebral column. Q: What is the tissue beneath a mollusks' shell called? Choices: - cartilage - skin - mucous - mantle A:
(Answer)
mantle