<span>Tonicity is the measure or amount of the osmotic pressure gradient.
Osmotic pressure is defined as the amount of external pressure that is required to stop the net movement of the solution across the semi permeable membrane. In terms of biology, osmosis has great importance as most of the membranes in our body are semi permeable. Permeability depends on several factors such as charge, solubility, solute size and chemistry. Osmosis is the process that provides the primary means through which water travels in and out of the cells.</span>
Explanation: It is important to identify areas that are prone to earthquakes in order to prepare for the possibility that they may occur. ... If there is an area that rarely receives earthquakes of any significant size, there is no reason to construct every bridge, building, etc, to be earthquake resistant.
<u>Answer:</u>
<em>B.the increase in temperature and volume of water that runs into rivers and streams</em>
<u>Explanation:</u>
<em>The severity of a flood deeds on the increase in temperature and volume of water that runs into rivers and streams</em>. Increase in the temperatures changes the <em>wind’s direction</em> and there is a more chances for <em>rain fall in these climate. </em>
Due to which there is a loads of water accumulated in this period of time due to which there is always a <em>flood due to the heavy rains</em>. The physical cause due to flood is <em>cause of heavy rainfall steep slopes and wet soil.</em>
Answer:
A. Gas is added to the bladder as the fish's depth increases.
Explanation:
The swim bladder is a gas-filled organ localized in the dorsal region of Osteichthyes (bony fish) that allows them to regulate buoyancy, thus maintaining water depth without swimming. Since the swim bladder localizes in the dorsal region, it also functions as a stabilizing organ. This organ is composed of two sacs whose walls contract and expand in response to water pressure. The swim bladder contains an oval window that enables to adjust buoyancy in order to maintain a constant depth, or to ascend or descend in a wide range of water depths.
1. True. Establishing more sites for the protection of biodiversity across the world can go a long way and would have a chain reaction in the ecosystem. Thus, it will save a lot of our planet's biodiversity. 2. a. -Philiab. -trophicc. eco-d. eu-3. A habitat is where certain species, animals, or organisms naturally live, feed, reproduce, etc. Examples: ocean, rainforest, deserts. An ecosystem has two components: living and non-living organisms which interact with each other to maintain homeostasis. The primary difference between the two is the presence of interaction between the things in the environment.4. Energy5. Producers6. Sun7. (No choices provided) One of the top factors that threaten the survival of species is caused by humans, man-made phenomena. 8. Answer: Polar bears. Polar bears are endangered species and there are only approximately 20,000-30,000 polar bears left in the world. Their population had been decreasing due to habitat loss because of climate change. 9. Scientists based the background extinction rate on the number of known species that went extinct over a period of time in the past. They also based it on archaeological evidence of species that existed and went extinct years ago.
