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coldgirl [10]
3 years ago
13

Debbie was doing a science lab, and she was instructed to decide whether a piece of plastic would float or sink without actually

putting the plastic in the water. How could she do this?
Biology
2 answers:
Rus_ich [418]3 years ago
7 0
She could do this because of the density level in the water and the density of the plastic. If the density of the plastic is lighter then the water then it will float but if it is heavier then it will sink.
diamong [38]3 years ago
6 0
Determine how heavy the piece of plastic is and if it's light than it is most likely to float
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Vitamin water contains about as many calories as a soft drink. <br> a. True <br> b. False
lana66690 [7]
The answer is True

The calorie that you get from drinking vitamin water mostly comes from sugar/carbohydrate. The sugar content of vitamin water is high enough to become close with a soft drink. The calorie content would be around 6 calories per ounce.
3 0
3 years ago
If a closed container contains a mouse as well as enough food, water, and oxygen for the mouse to live for three weeks, how much
ale4655 [162]

Answer:

The life process may be defined as the different process that are important for the sustenance of life. The most important life process are nutrition, respiration, excretion and transportation.

If the mouse is placed in the closed sealed container then the weight will remain before and after the experiment of 1 or 2 week. This is because the life process metabolic reactions will use and conserve all the atoms involved in the life process. These atoms can exist in the liquid, solid and gas forms but present inside the container.

5 0
3 years ago
Plasma contains more sodium than chloride. How can this be if individual ions of sodium and chloride exactly balance each other
MAXImum [283]

In addition to chloride, there are other negatively charged molecules in plasma. The extra sodium restores the balance of the overall negative charges.

So this is how plasma is electrically neutral.

<h3>The makeup of bodily fluids:</h3>
  • High levels of sodium, chloride, bicarbonate, and protein can be found in the plasma.
  • High levels of salt, chloride, and bicarbonate but a relatively low level of protein can be found in the IF.
  • The ICF, on the other hand, contains higher levels of protein, phosphate, magnesium, and potassium.
<h3>What occurs when the plasma Na+ content rises?</h3>
  • Although the plasma sodium concentration does not provide any information regarding the volume of extracellular fluid, it does allow for an assumption regarding intracellular volume.
  • A rise in plasma sodium (plasma osmolality) causes water to be drawn out of the cell, which causes the intracellular volume to decrease.
<h3>Why does plasma have a higher sodium content than chloride?</h3>
  • In plasma, sodium predominates over chloride.
  • In addition to chloride, there are other negatively charged molecules in plasma.
  • The extra sodium restores the balance of the overall negative charges.

To learn more about plasma charge visit:

brainly.com/question/22196626

#SPJ4

4 0
1 year ago
The inner ear bones of mammals have evolved from<br> bones that form the jaws of reptiles.
m_a_m_a [10]

Answer:

auditory ossicles

Explanation:

In reptiles, the eardrum is connected to the inner ear via a single bone, the columella, while the upper and lower jaws contain several bones not found in mammals. Over the course of the evolution of mammals, one bone from the lower and one from the upper jaw (the articular and quadrate bones) lost their purpose in the jaw joint and were put to new use in the middle ear, connecting to the existing stapes bone and forming a chain of three bones, the ossicles, which transmit sounds more efficiently

6 0
3 years ago
some scientists study the way fossils and living organisms are distributed, or spread out, on Earth. What is the area of study c
REY [17]

Biogeography is the study of geographical distribution of fossils, various species (plants and animals) and ecosystems throughout geological time and space

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