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
guajiro [1.7K]
3 years ago
13

An experiment that does not have a positive AND a negative control is a poorly designed experiment

Biology
1 answer:
Lina20 [59]3 years ago
4 0

Answer:

true

Explanation:

you frequently need a control which shows the experiments to stay the same. controls are very important.

You might be interested in
Overexertion in extremely hot temperatures helps the body to cool itself. true false
Oksana_A [137]
I would say that the given statement is false. Overexertion in extremely hot temperatures does not help the body to cool itself. <span>Overexertion in hot weather or working in hot, poorly ventilated or confined areas can increase your risk of heat stress. Hope this answers the question. </span>
8 0
3 years ago
Read 2 more answers
What causes the formation of graded beds of sediment?​
Mamont248 [21]

In geology, a graded bed is one characterized by a systematic change in grain or clast size from one side of the bed to the other. Most commonly this takes the form of normal grading, with coarser sediments at the base, which grade upward into progressively finer onesI just learned about this in our rocks and minerals unit for science,

8 0
3 years ago
Unidirectional flow in the heart is ensured because the heart contains ___________.
jekas [21]
<span>Unidirectional flow in the heart is ensured because the heart contains valves that prevent backflow.

These valves keep the flow of the heart going in one direction (hence the name "unidirectional").</span>
3 0
3 years ago
PLEASE THIS URGENT PLS HELP
Greeley [361]

Answer:

adaptation is what's happening, and the moths changed color to adapt to the new environment.

because of the smoke, the light colored moths were easily spotted and eaten. but they changed color over time to account for that, turning black to make them harder to spot and eat.

7 0
3 years ago
Electricity is added to recharge a battery. What is added to ADP to form ATP?
White raven [17]

Electricity is added to recharge a battery. A third phosphate group  is added to ADP to form ATP.

ATP or Adenosine triphosphate contains adenine, ribose and 3 phosphate groups.

ADP is converted to ATP by the following reaction:

ADP+Pi+energy⇄ATP

The analogy between battery and ATP can be explained as ATP is higher energy form and ADP is lower energy form like charged and uncharged form of the battery. When the terminal or third phosphate is removed from the ATP it becomes ADP and releases energy like a battery. The additional phosphate group when added to ADP forms the ATP molecule like the energy spent by the batteries are recharged by putting in additional energy. Here the additional energy is provided by the third phosphate group.

6 0
3 years ago
Read 2 more answers
Other questions:
  • Why does it make sense that muscle cells would be the best adapted to carry out fermentation?
    9·1 answer
  • Choose all statements that accurately describe the transcription bubble.
    11·2 answers
  • The crossover percentage between two different genes is __________.
    9·1 answer
  • An example of negative feedback is the what in the body temperature if it gets too cold outside
    15·1 answer
  • Which is an example of passive transport across a cell membrane?
    9·2 answers
  • Which of the following is true about natural selection?
    15·1 answer
  • An experiment that
    5·1 answer
  • When a negatively charged balloon is used to charge a neutral object by contact, the resulting charges are as
    5·1 answer
  • What is the utilized equipment for studying fluorescence-labelled cells?
    13·1 answer
  • Someone help me with both pleaseeeeee :(
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!