The human organs are also called hollow organs because they have an empty tube or pouch. Examples of hollow organs include the stomach, intestine, and the heart.The eye is an organ that is generally considered part of the nervous system.Other organ systems in the human body include the immune system and the lymphatic system.The small intestine is actually much longer than the large intestine.<span>Some scientists say that the liver performs as many as 500 different functions.
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Answer:
the later stages are small and the tool materials are of better quality than the previous stages.
Explanation:
The stone scrapers and the choppers found at the site of Zhoukoudian points out the fact that Peking men devised several tools for various purposes and to accomplish different tasks. The stones and the bones used to make the tools used to be charred by using the fire. This also indicates that the Peking men had discovered the uses of fire and they used fire for various activities.
Answer:
The bottom one is "evaporation" and the one to the right is "precipitation".
Explanation:
Evaporation is when the sun heats up a body of water and turns the surface water particles into water vapor. The water vapor then goes into the air and turns into clouds. Precipitation is basically rain.
Answer:
Explanation:
Both organelles, the mitochondria and chloroplasts (in photosynthetic organisms), are compartments that are believed to be of endosymbiotic origin.A compartment is a separate space within a larger whole. In relationship to the endomembrane system and the nucleus.organelles that aren’t part of the endomembrane system, such as mitochondria and chloroplasts.Cellular compartmentalization allows cells to optimize the efficiency of the processes that occur within organelles. But despite the advantages of compartmentalization, it’s not a universal feature of life. In fact, compartmentalization of cellular functions into membrane-bound organelles is limited to only one of life’s three major groups, or domains. That domain is the one that we belong to, the Eukarya. In addition to animals, eukarya includes plants, fungi, and other organisms with eukaryotic cells: cells that are relatively large, complex, and compartmentalized. And to see why that is, we need to look at how life has diverged over time.
