answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
MissTica
2 years ago
13

Which statement correctly describes a possible result if starch indicator is added to the water in the beaker one hour after the

potato cube was added
Biology
2 answers:
musickatia [10]2 years ago
7 0

Answer:

The starch indicator will take on a color between blue and black.

Explanation:

When you put a piece of potato in a glass of water, the starch in the potato will start to come out of the potato and stay in the water. After an hour it is likely that all of the potato starch is in the water.

When the starch comes in contact with the water in the cup, it starts to occupy the spaces between the water molecules, which means that we have a solution (starch + water), when the starch indicator is added to this solution, it reacts with the starch molecules and takes on a color between blue and black.

Lady bird [3.3K]2 years ago
5 0

Answer:

starch indicator will not change its color

Explanation:

if starch indicator is added to the water solution it will change its amber colour if starch is added in the water solution and vice versa.

You might be interested in
After the enzymes amylase breaks down a starch molecule, it can
zzz [600]

      Generally speaking, enzymes (which amylase happens to be) do not undergo any permanent structural change while carrying out their function. Some do exhibit transient conformational change during a reaction, but upon completion regain their original form.  

So your initial assumption is correct: once amylase has finished catalyzing the breakdown of starch into less complex sugar molecules, it moves on and repeats the process over and over.

6 0
2 years ago
Fill in the blank. Giraffe necks and mice necks have the same number of vertebrae, despite their different sizes and functions.
den301095 [7]

Answer:

homologous structure

analogous structure

natural selection

This is known as an analogous structure.

To make this determination, you need to think about if the features are the same in function or also in structure. Features that have a closely related structure and function are likely to be related.

To learn more about why your friend is in the hospital, you should research vestigial structures.

These two beetles aren't closely related, but they look and behave similarly. This is because they live in the same environmental conditions and likely share a common ancestor that lived in Gondwana (the supercontinent that included the southern continents before they split apart through plate tectonics).

Australia has so many genetically distinct organisms because it has been separated from other bodies of land by water for a very long time. This has created an opportunity for long-term independence of other geographic areas.

Explanation:

Penn Foster

8 0
2 years ago
What resources do Off shore oil rigs extract from the earth
RoseWind [281]

Off shore rigs, also called oil platforms, extract oil from the earth. Off shore rigs are quite large structures, and if close to one, it probably wouldn't be too hard to see it. Off shore rigs explore, extract, store, and process petroleum (basically oil). An off shore rig extracts the oil from rocks below the seabed. It is very dangerous and difficult work to work at an oil rig, but salaries are often quite high, partially compensating for the risk.

3 0
2 years ago
Read 2 more answers
Of the three major groups of forensic science professionals, which of the following provide specific knowledge in an area of sci
Ber [7]

Answer:

A. associate scientists

<em>hop</em><em>e</em><em> this</em><em> answer</em><em> correct</em><em> </em><em>(</em><em>^</em><em>^</em><em>)</em><em>.</em><em>.</em>

5 0
2 years ago
Invasive species often unbalance the ecosystems into which they are introduced because _______.
Anit [1.1K]
The correct awnser is A just took the test
4 0
2 years ago
Read 2 more answers
Other questions:
  • A the mechanism of contraction in smooth muscle is different from skeletal muscle in that ________.
    11·1 answer
  • Suppose chromosomes in a skin cell are damaged by ultraviolet radiation. if the damaged genes do not effect cell cycle regulatio
    12·2 answers
  • A gram-positive bacteria suddenly acquires resistance to the antibiotic methicillin. This trait most likely occurred due to
    9·1 answer
  • Drag the tiles to the correct boxes to complete the pairs.
    10·2 answers
  • The overfishing of (blank) which marine creature led nations to realize the need for marine conservation?
    15·1 answer
  • "Freezing-up" or being unable to move or respond physically during a traumatic event is an example of:
    14·1 answer
  • You are studying body color in an African spider and have found that it is controlled by a single gene with four alleles: B (bro
    9·1 answer
  • Describe the general diversity of species on Earth in terms of relative numbers and types of organisms. Compare known numbers to
    11·1 answer
  • Which statement describe a pattern shown in the data?
    8·2 answers
  • 44. A food handler does NOT need to worry about time and temperature control when handling which food?
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!