BIOLOGY MIDDLE SCHOOL

Which of the following lists include only abiotic factors?a. sunlight, rainfall, soil
b. plant roots, rainfall, temperature
c. Sunlight, soil ph, native animals

Answers

Answer 1
Answer: A is the correct answer

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Viruses do not possess all the characteristics of life. Identify those characterustics that viruses display and those they don't display?

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The main aspect of viruses that causes controversy over it being classified as living is its manner of reproduction.

Viruses do reproduce, like a living organism. However, they cannot do so without a host cell, so they are unable to reproduce on their own, which means that they are not living.

Hope this helps!

1) compare and contrast the Taiga and Desert biomes2) Compare and contrast the Tundra and Grasslands biomes

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Answer: The desert and tundra biomes have very different temperatures as well as extremely different plants and animals. The desert can get very hot during the day, but cool off quickly at night. It has sandy soil and supports very little plant life. Animals found in the desert include lizards, javelinas, Gila monsters, coyotes, bobcats, scorpions, and kangaroo rats. The tundra is cold, dry, and often dark. The average temperature is about 10°F. The soil below the surface is permanently frozen, and is called permafrost. A few types of plants grow during the short summer season. Animals found in the tundra include caribou, foxes, wolves, and Arctic hares.
ok so the taiga and desert biomes are similar  because both of them have very little transportation , climate zones and climate zones depending on the latitudes and both biomes have little water available for plants and animals. Taiga biomes have little due to freezing and deserts  due to little rain. A difference  is that more plants can survive in the taiga than in the deserts, which in turn supports more animals. Deserts have different types of deserts that are characterized  in temperature and rainfall.Deserts are the driest biome while taigas are one of the most coldest.   A similarity between the Tundra and Grasslands biomes is that the tundra is cold and dry and little to no rainfall every year while, the grassland has warm temperatures with light winds. A similarity between them is that both biomes have a good amount of herbivores and carnivores and animals and plants have adapted to their surroundings 

A 45 g piece of plasticine is placed in water and 30cmcube of water was displaced. Calculate the density of the plasticine in kg/mcube

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Answer: 1500kg/m^3

Explanation: Assuming the cube was not large enough to float if it displaced 30cm^3 of water then it has a volume of 30cm^3. Density is just mass/volume so 45g/30cm^3 = 1.5g/cm^3. To convert this to kg/m we need to multiply by the conversion factors of the units. 1.5g/cm^3 • 1kg/1000g • 1,000,000cm^3/1m^3 = 1500kg/m^3.

Water at the top of a slope has potential energy

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You are correct. The higher something is, the more potential energy it has.
it is true. Water at the top of a slope has potential energy.

( it is true or false) Lava is inside earths crust and may contain trapped gasses.

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i believe the answer is true

Explain how paleontologists use trilobite fossils as index fossils for various geologic time periods

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The carbon in their bones allow them to know what time period it comes from. This is called carbon-dating.
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