1answer.
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
Tasya [4]
2 years ago
9

What were your controls for this experiment? what did they demonstrate? why was saliva included in this experiment?

Biology
1 answer:
Vlad1618 [11]2 years ago
4 0

Positive control is Ginger root (should indicate the presence of amylase)

Negative control is Cellulose (should not contain amylase)

Here the presence of amylase is tested by testing the presence of starch using an IKI solution. Saliva is included in this experiment because it contains the enzyme amylase.

You might be interested in
The positively charged particle in an atom's nucleus is called the ______
Anika [276]
Protons! Hope this helps
7 0
3 years ago
Can i get some help with this question
Dimas [21]

Answer:

photograph cells in mitosis

5 0
2 years ago
Read 2 more answers
3. Does your skate park playground ramp design support the law of conservation of energy? Use
nlexa [21]

Skate park is a good example that maintains the law of conservation as skater neither creates nor destroys energy.

Explanation:

As per the law of energy conservation, energy cannot be created nor can be destroyed but it’s form can definitely be changed. This theory can be well justified by the example of skate park playground. According to the rules of this law a skater can never go high more than 2 meters on the ramp’s other side because it has that gravitational energy potential.  

With every drop of the skater on the ramp the potential energy of the skater changes into kinetic energy. This two sides of the law justifies the fact that skate playground should be designed in such a way that it supports the law of conservation of energy.

3 0
3 years ago
Read 2 more answers
A person who has cerebrospinal fluid draining from the ear probably has a fracture of the __________ bone. occipital zygomatic f
Tanzania [10]

A person who has cerebrospinal fluid draining from the ear probably has a fracture of the temporal bone.

<h3>What is Cerebrospinal Fluid?</h3>

All animals have cerebrospinal fluid (CSF), a transparent, colorless bodily fluid that is present in the tissue that covers their brains and spinal cords.

Specialized ependymal cells in the choroid plexus of the brain's ventricles create CSF, which is then absorbed in arachnoid granulations. About 125 mL of CSF are present at any given moment, and 500 mL are produced daily. The CSF protects the brain inside the skull mechanically and immunologically by acting as a shock absorber, cushion, or buffer. The cerebral autoregulation of cerebral blood flow is another essential role played by CSF.

The ventricular system and subarachnoid space, which are located surrounding and inside the brain and spinal cord, respectively, are occupied by CSF.

Learn more about CSF with the help of the given link:

brainly.com/question/7142724

#SPJ4

5 0
1 year ago
What is the difference between a mechanical layer and a compositional layer?
xenn [34]
Compositional layers are determined by their components, while mechanical layers are determined by their physical properties.
5 0
3 years ago
Other questions:
  • What value do potch opals have? Why?
    6·1 answer
  • Ringing of the ears after exposure to loud music is most likely to be caused by damage to
    12·1 answer
  • Molecules cannot react chemically unless they are......
    12·1 answer
  • Darwin discovered twenty different species of finches in the Galapagos islands. He hypothesized that as new islands arose, finch
    12·1 answer
  • Select all that apply. Many insects go through different physical changes during growth. These insects include the _____.
    7·1 answer
  • Which of the following organisms is a heterotroph?
    8·2 answers
  • What difficulties are encountered in studying living cells of multicellular organisms?
    7·1 answer
  • How do animal-like protists differ from plant-like protists?
    12·2 answers
  • Which characteristics are used to differentiate among the six kingdoms?
    9·1 answer
  • How do scientists use models to determine the scale properties of objects in our solar system
    9·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!