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Vesnalui [34]
3 years ago
9

Helpppppp HAHAHAHHAHA IM STRUGGLING

Biology
1 answer:
OlgaM077 [116]3 years ago
4 0

Answer:

Option D = 3.4 g/mL

Explanation:

Given data:

Volume of water = 21.2 mL

Volume of water + object = 27.8 mL

Mass of object = 22.4 g

Density of object = ?

Solution:

First of all we will calculate the volume of object.

Volume of object = Volume of water+ object - volume of water

Volume of object = 27.8 mL - 21.2 mL

Volume of object = 6.6 mL

Density of object:

d = m/v

d = 22.4 g/ 6.6 mL

d = 3.4 g/mL

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Answer:

Option D

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In 1972, the fluid mosaic model was proposed by S. J. Singer and G. L. Nicolson to describe the structure of the plasma membrane found I living cells. The model describes the plasma membrane to possess components including phospholipid, proteins and cholesterol.

The phospholipid is arranged in two layers comprising of glycerol, two fatty acids and a phosphate group. The fatty acids which forms the tail are hydrophobic (water-fearing) while the phosphate group is water-loving (hydrophobic) giving the plasma membrane an AMPHIPATHIC nature. The other component as proposed by the model are membrane proteins and cholesterol, all responsible for the fluidity of the membrane.

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3 years ago
What is not a step in the scientific method
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Are there choices to choose from, because that is a very general question?
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3 years ago
The plants in this ecosystem are dark in color to absorb sunlight, covered in hair and grow in clumps. What type of ecosystem co
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Darker colors absorb and retain warmth than warm tones. As a result, plants in the tundra have dark-colored leaves, hairy and clumped and stems to help them absorb solar heat faster and stay warm for longer periods of time. So it could be tundra ecosystem according to the given scenario.

<h3 /><h3>What is tundra ecosystem?</h3>

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Much of the year, tundra lands are covered in snow, but summer brings bursts of wildflowers.

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Thus, the correct ecosystem for the given condition is tundra.

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6 0
2 years ago
The electrons that chlorophyll loses to the electron transport chain are replenished by ___________ molecules
irakobra [83]

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7 0
3 years ago
Chuck Wildlee, a baseball pitcher, was struck on the head by a line drive hit by Charley Hussel. Fortunately, Chuck was not seri
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Answer:

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This sensory memory keeps  storing and is collectively referred to as short term memory.  

Since Chuck Wildlee was unable to remember how many balls and strikes the batter had. In past he would have perceived this information through eyes which should have been part of sensory memory and later the part of short term memory.  

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3 years ago
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