Which of the following statements is true?Fossilization can only occur when oxygen is present.
Soft body parts are well preserved as fossils.
A cast fossil leaves a hollow space once occupied by a dead organism.
Vertebrate fossils are more common than invertebrate fossils.

Answers

Answer 1

Answer: The statement in the option #4 is true; Vertebrate fossils are more common than invertebrate fossils. The majority of the fossils are vertebrate skeleton or bones than the invertebrate ones. The options 1, 2, 3, is rather wrong, that leaves you with option #4.

Answer 2

Answer:

Answer:

Explanation:

I took the test

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The amount of moisture in a prevailing wind depends on which two factors? temperature and downslope of mountains air pressure and warm fronts barometric pressure and temperature temperature and nearness to bodies of water

Answers

The amount of moisture in a prevailing wind depends on two factors. These factors are temperature and nearness to bodies of water.

The two factors would be "Temperature, and nearness to bodies of water".

___________ can be used by cells to store energy, form biological membranes, and serve as chemical messengers.

Answers

Lipids

Lipid molecules are incorporated in the plasma membrane as part of the phospholipid bilayer, which has a polar and non-polar end. Lipid molecules are also stored in cells and are more commonly known as fat then. Fat serves as an energy store and insulates organisms from the cold. Glycolipids are molecules found on the surface of cells and help in communication.

Final answer:

Lipids are used by cells for energy storage, forming biological membranes, and serving as chemical messengers with different types of lipids like triglycerides, phospholipids and steroids serving different functions.

Explanation:

Lipids can be used by cells to store energy, form biological membranes, and serve as chemical messengers. Lipids are a group of fats and fat-like substances that are important parts of the cells and sources of energy. Lipids are used in the body for several functions including energy storage, insulation, and cellular communication. For example, triglycerides, a type of lipid, act as an important energy source when glucose levels are low. Phospholipids create the biological membranes, providing a barrier and enabling control of the substance passage in-and-out of the cells. Steroids, another type of lipids, serve as chemical messengers in the body, with cholesterol and hormones being examples of such steroids.

Learn more about Lipids here:

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the walls of the alveoli in the lungs are incredibly thin. Explain how this structure is related to function in the body.

Answers

alveoli in the lungs take the oxygen from air breathed in and transfer them into de oxygenated blood making them oxygenated

In a typical food chain what percentage of energy is passed on to the next trophic level

Answers

About 90% energy is lost to heat and the remaining 10% gets passed on.

the answer to this question is b) 10%

Species are identified as ?

Answers

Answer:

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Explanation:

species, in biology, classification comprising related organisms that share common characteristics and are capable of interbreeding. This biological species concept is widely used in biology and related fields of study.

Answer:

Groups

Explanation:

"We are made of stardust" refers toa. the dust of dead skin cells we shed every day.
b. the rotating cloud of stardust that formed the planets.
c. the gases in the stars that formed the gases in the atmosphere.
d. the rotating cloud of stardust that formed LUCA and all the organisms that evolved later.