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yan [13]
3 years ago
12

Tim wants to perform an experiment with yeast. He forms a hypothesis in which he predicts that all of the yeast will eventually

die. Would this be a good experiment?
A. Yes, because it involves living things and you can observe what happens to the bacteria.
B. No, because the hypothesis is not falsifiable since all living things eventually die anyhow.
C. Yes, because you could test a lot of different ways the bacteria could die.
D. No, because he does not explain what the results of the experiment are
Biology
1 answer:
Olin [163]3 years ago
4 0

Answer:

answer c

Explanation:

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Lesson 01.04 Properties of Water
ryzh [129]

Answer:

1= In living organisms cells are composed of water or we can say that water is one of the important constituent of cells.

2= Hydrogen bonding import man properties to the water such as cohesion, high heat of vaporization, high heat capacity etc.

3= Because of high polarity, all polar substance get dissolve and make it universal solvent.

Explanation:

Solvent is the that part of solution which is present in large proportion and have ability to dissolve the solute. In simplest form it is something in which other substance get dissolve. The most widely used solvent is water, other examples are toluene, acetone, ethanol, chloroform etc.

Water is called universal solvent because of high polarity all polar substance are dissolve in it. Hydrogen is less electronegative while oxygen is more electronegative and because of difference in electronegativity hydrogen carry the partial positive charge while oxygen carry partial negative charge.

Hydrogen bond:

The hydrogen bond is the attraction between the toms which already take part in the other chemical bons. The one atom is hydrogen while other may be oxygen, nitrogen or fluorine.

The hydrogen bonding in water import man y properties in it such cohesion, high heat of vaporization, high heat capacity etc. The hydrogen bond hold the water molecules together.

Water create electrostatic interaction with other polar molecules. The negative end of water attract the positive end of polar molecules and positive end of water attract negative end of polar substance and in this way polar substance get dissolve in it.

Example:

when we stir the sodium chloride into water the cation Na⁺ ions are surrounded by the negative end of water i.e oxygen and anion Cl⁻ is surrounded by the positive end of water i.e hydrogen and in this way all salt is get dissolved.

7 0
3 years ago
Is oxygen a compound or an atom?
alexgriva [62]
1. an atom
2. compound
3. both
4. atom
5 0
3 years ago
Which type of muscle tissue is pictured?
malfutka [58]

Answer:

Smooth

Explanation:

The muscle tissue from the smooth muscles looks layered and connected. Also, I found the diagram online.

4 0
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Water with dissolved soil in it percolating through a rock is an explane of what? ( weathering, erosion, or deposition)
frosja888 [35]

I'm pretty sure it's deposition because the sediments in the water(soil) are building up on the rock.

5 0
3 years ago
Give an example of a decomposed. Explain what would happen if decomposers were absent from a forest ecosystem.
DerKrebs [107]

Answer:

Some examples of decomposers include bacteria, fungi, and some insects. If decomposers disappeared from a forest ecosystem, wastes as well as the remains of the dead organisms would pile up, and producers (plants) would not have enough nutrients.

3 0
3 years ago
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