Answer the following question given this paragraph: Preserved traces can include footprints, burrows, or even wastes. Examples of these types of fossils, called trace fossils are picture below ( Figure below and Figure below ). Q: Footprints, burrows, and waste are considered what type of fossils? Choices: - movement fossils - crater fossils - morphology fossils - trace fossils A:
trace fossils
Answer the following question given this paragraph: Imagine a huge bar magnet passing through Earth's axis, as in the Figure below . This is a good representation of Earth as a magnet. Like a bar magnet, Earth has north and south magnetic poles. A magnetic pole is the north or south end of a magnet, where the magnet exerts the most force. Q: What is the name of the region of a magnet that has the most pull? Choices: - center - grid - tail - pole A:
pole
Q: Answer the following question given this paragraph: One major factor that limits the length of food chains is energy. Energy is lost as heat between each trophic level due to the second law of thermodynamics. Thus, after a limited number of trophic energy transfers, the amount of energy remaining in the food chain may not be great enough to support viable populations at yet a higher trophic level. The loss of energy between trophic levels is illustrated by the pioneering studies of Howard T. Odum in the Silver Springs, Florida, ecosystem in the 1940s (Figure 46.5). The primary producers generated 20,819 kcal/m2/yr (kilocalories per square meter per year), the primary consumers generated 3368 kcal/m2/yr, the secondary consumers generated 383 kcal/m2/yr, and the tertiary consumers only generated 21 kcal/m2/yr. Thus, there is little energy remaining for another level of consumers in this ecosystem. Q: Energy is lost as heat between each trophic level due to the second law of what? Choices: - reactions - particles - chemistry - thermodynamics A:
A: thermodynamics
Question: Answer the following question given this paragraph: The four types of tissues make up all the organs of the human body. An organ is a structure composed of two or more types of tissues that work together to perform the same function. Examples of human organs include the skin, brain, lungs, kidneys, and heart. Consider the heart as an example. Figure below shows how all four tissue types work together to make the heart pump blood. Q: A structure composed of two or more types of tissues that work together to perform the same function is called? Choices: - Group - order - System - organ A:
Answer: organ
*Question*
Answer the following question given this paragraph: Elemental bromine gas can be generated by reacting sodium bromide with elemental chlorine. The other product is sodium chloride. Write a balanced chemical equation for this reaction. Saylor URL: http://www. saylor. org/books. Q: What gas can be generated by reacting sodium bromide with elemental chlorine? Choices: - Molecular Bromine Gas - photons bromine gas - gaseous bromine gas - elemental bromine gas A:
**Answer**
elemental bromine gas
Answer the following question given this paragraph: This scene is from Anza-Borrago California Desert Park. However, deserts exist around the globe. You might find a similar picture of a desert in Africa. The desert is one type of biome. Q: A desert is a type of what community in an ecosystem? Choices: - culture - population - colony - biome A:
biome