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IrinaK [193]
2 years ago
11

Sudan IV is a colored substance that dissolves into lipids. A raw egg is separated into the egg white and the egg yolk. Sudan IV

is dropped into the egg white. It does not dissolve but stays as one tight ball. Sudan IV is dropped into the egg yolk. It spreads through the egg yolk by dissolving into the yolk. What does this suggest about the egg yolk versus the egg white?
Biology
1 answer:
gtnhenbr [62]2 years ago
7 0
The experiment described above shows that THE EGG YOLK IS COMPOSED OF LIPIDS WHILE THE EGG WHITE DOES NOT HAVE LIPID COMPONENT.
The Sudan IV reagent dissolved into the egg yolk because lipids are present in the egg yolk. The reagent did not dissolve into the egg white because lipids are absent. Thus, the egg white does not contain lipids while the egg yolk contains lipids.
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A hypothesis is a general principle or explanation that is derived from observations. Suppose you make the following observation
mr_godi [17]

Question continued

For each statement below, mark "True" if it would be a valid hypothesis, based on these three observations alone, and mark "False" if it would not be a valid hypothesis.

1. The onion cells I looked at have a nucleus.

2. All onion cells have a nucleus.

3. All cells have a nucleus.

4. Some cells have a nucleus.

5. Only onion cells have a nucleus.

6. If I look at 10 skin cells from my hand, each one will have a nucleus.

Answer:

1. The onion cells I looked at have a nucleus. false - this is not a hypothesis, it is an observation of the evidence you collected.

2. All onion cells have a nucleus. true - this is a valid hypothesis based on the evidence you have gathered from looking at onions

3. All cells have a nucleus. true  - this is a hypothesis based on you looking at 3 cell types, several samples of each, and finding that they all have a nucleus

4. Some cells have a nucleus. false - this is not a valid hypothesis. Your evidence so far suggests all cells have a nucleus

5. Only onion cells have a nucleus. - false, you know this to be false as other cell types you analysed had a nucleus

6. If I look at 10 skin cells from my hand, each one will have a nucleus. false - a hypothesis is supposed to be a general principle that is backed up by evidence, this is too specific.

4 0
3 years ago
A botanist wants to see how different colored light waves influence the growth of pea
S_A_V [24]

Answer:

write the procedure in the passive voice (reporting fashion )

4 0
3 years ago
Pioneer species are species that colonize previously uncolonized land, usually leading
katen-ka-za [31]

Answer:

The lichen is a decomposer that digests rocks and forms soil.

3 0
2 years ago
The picture shows an organ system in the human body. What do these organs do in the human body?
olga2289 [7]

The organs represented in the image are the Brain, nerve, and spinal cords that monitor and react to changes in the body and its environment.

<h3>What are Organs?</h3>

Organs may be defined as an assemblage of tissues that structurally construct an operational unit specialized to accomplish a distinct operation and functions in the body of a living organism.

The nerves function in sending and receiving signals to the brain from external stimuli. They give the perception of feeling pain, relaxation, stress, etc to the brain according to the situations.

The complete question is as follows:

The picture shows an organ system in the human body.

Brain, Nerve, and spinal cord.

What do these organs do in the human body?

  • They filter pathogens and dead cells out of lymph before it returns to the blood.
  • They monitor and react to changes in the body and its environment.
  • They release hormones that control the activities of cells and organs.
  • They identify and destroy things that are foreign or harmful to the body.

Therefore, the correct option for this question is B, i.e. They monitor and react to changes in the body and its environment.

To learn more about Organs, refer to the link:

brainly.com/question/1126526

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Succession helps restore the equilibrium of an ecosystem by forming up new species, diversifying species, and basically by replacing the damaged, deranged, or disturbed community. For instance, when a sudden climate change occurred in a community, such as drought, dryness, fire, or heat waves, all living things that depends on water or survives in a cool, wet environment will die or migrate somewhere else. Thus, leaving that community vacant and/or unoccupied by any living things. Succession, then, will take place in that area by going through various stages until reaching the climax stage, in which the ecosystem is complete again. c: hope i helped :D
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