Q: Instruments that measure the angle of the slope of a volcano are called what? Read this paragraph and choose the correct option from the provided answers: All that magma and gas pushing upward can make the volcano's slope begin to swell. Ground swelling may change the shape of a volcano or cause rock falls and landslides. Most of the time, the ground tilting is not visible. Scientists detect it by using tiltmeters, which are instruments that measure the angle of the slope of a volcano. Choices: - aberration meters - velocity meters - angle meters - tilt meters A:
tilt meters

Q: Which fungi eaten by people all over the world? Read this paragraph and choose the correct option from the provided answers: Mushrooms are fungi that are eaten by people all over the globe. Choices: - fruits - legumes - algae - mushrooms A:
mushrooms

Q: Q: What is studied to understand gene expression patterns in cells? Read this paragraph and choose the correct option from the provided answers: RNA is studied to understand gene expression patterns in cells. RNA is naturally very unstable because enzymes that break down RNA are commonly present in nature. Some are even secreted by our own skin and are very difficult to inactivate. Similar to DNA extraction, RNA extraction involves the use of various buffers and enzymes to inactivate other macromolecules and preserve only the RNA. Gel Electrophoresis Because nucleic acids are negatively charged ions at neutral or alkaline pH in an aqueous environment, they can be moved by an electric field. Gel electrophoresis is a technique used to separate charged molecules on the basis of size and charge. The nucleic acids can be separated as whole chromosomes or as fragments. The nucleic acids are loaded into a slot at one end of a gel matrix, an electric current is applied, and negatively charged molecules are pulled toward the opposite end of the gel (the end with the positive electrode). Smaller molecules move through the pores in the gel faster than larger molecules; this difference in the rate of migration separates the fragments on the basis of size. The nucleic acids in a gel matrix are invisible until they are stained with a compound that allows them to be seen, such as a dye. Distinct fragments of nucleic acids appear as bands at specific distances from the top of the gel (the negative electrode end) that are based on their size (Figure 10.3). A mixture of many fragments of varying sizes appear as a long smear, whereas uncut genomic DNA is usually too large to run through the gel and forms a single large band at the top of the gel. Choices: - dna - protein - mutations - rna A:
A: rna

Question: Q: The hypothalamus and pituitary gland are located near the base of this organ? Read this paragraph and choose the correct option from the provided answers: The hypothalamus and pituitary gland are located close together at the base of the brain. Choices: - the heart - the lungs - the liver - the brain A:
Answer: the brain

*Question*
Q: What travels at a rate of 300,000 kilometers per second, or nearly instantaneously? Read this paragraph and choose the correct option from the provided answers: The speed of sound in air is approximately , where is the temperature of the air in Celsius. The speed of light is 300,000 km/sec, which means it travels from one place to another on Earth more or less instantaneously. Let's say on a cool night (air temperature Celsius) you see lightning flash and then hear the thunder rumble five seconds later. How far away (in km) did the lightning strike?. Choices: - air - sound - gravity - light A:
**Answer**
light

Q: Q: The heterotroph eats only or mainly what? Read this paragraph and choose the correct option from the provided answers: heterotroph that eats only or mainly plants. Choices: - animals - roots - decomposers - plants A:
A: plants