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Pani-rosa [81]
3 years ago
6

Objects need to be in contact with each other in order to experience friction.

Biology
2 answers:
Alex_Xolod [135]3 years ago
8 0

Answer:

false

I think I am not sure

Alisiya [41]3 years ago
5 0

Answer:

Yes

Explanation:

Because Friction is the force resisting the motion of solid surfaces that means that they have be in contact for there to be friction.

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In Griffith's experiments with Streptococcus pneumoniae, rough nonencapsulated streptococci were converted into smooth encapsula
larisa86 [58]

Answer:

The correct answer is - transformation.

Explanation:

Griffith's experiment was performed by Fredrick Griffith with Streptococcus pneumoniae. Streptococcus P. are rough non encapsulated streptococci that are converted into smooth encapsulated streptococci bacteria in presence of heat-killed smooth encapsulated bacteria.

This experiment was the first experiment that showed that this bacteria can get DNA by the process of transformation.

He suggested that the nonencapsulated bacteria had been transformed into the encapsulated smooth bacteria strain by the transformation process that was somehow part of the dead encapsulated strain bacteria.

Thus, the correct answer - transformation.

3 0
3 years ago
Earth retains water because
notka56 [123]
Liquid water, which is necessary for life as we know it, continues to exist on the surface of Earth because the planet is at a distance, known as the habitable zone, far enough from the Sun that it does not lose its water to the runaway greenhouse effect.
6 0
3 years ago
A student designs an experiment to test substances X, Y, and Z, to determine which one is a catalyst for the reaction: A + B ® C
rewona [7]

The answer is option A.

The Student identifies the test tube that stops bubbling first contains the catalyst.

Because Catalyst is a substance which increases the rate of reaction, and the reaction shows that when a product is obtained bubbles formed.

<span>When the student added X, Y and Z to the test tubes. The one which is a catalyst fastened the reaction.</span>

7 0
3 years ago
Choose all the answers that apply.
Mariulka [41]

I think that these are the answers

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4 0
3 years ago
A cell member is made up of what
ankoles [38]

All living cells and many of the tiny organelles internal to cells are bounded by thin membranes. These membranes are composed primarily of phospholipids and proteins and are typically described as phospholipid bi-layers.

<span>Hope I helped. :) </span>


6 0
3 years ago
Read 2 more answers
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