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
Grace [21]
3 years ago
13

At times during a month, there is no moon visible from earth, even on a clear night. Which phase of the moon is this?

Biology
1 answer:
Pani-rosa [81]3 years ago
3 0
First quarter. I hope this is helpful
You might be interested in
A hawk receives energy by eating other animals.  What type of organism is a hawk?​
anyanavicka [17]

Answer:

Explanation: Carnivore because it eats meat (other animals)

7 0
3 years ago
Read 2 more answers
What is nuclear transfer used for?
Licemer1 [7]
A Nuclear transfer is used for Creating Clones
4 0
4 years ago
Read 2 more answers
How are scientists able to use fossils of extinct organisms as evidence?
nikdorinn [45]

The answer is; C

Fossil fuels are the remains of an organism  that lived in the past and have been preserved  or their impression has been preserved. Fossils are studied to identify the difference (genetic and phenotypic) between past and future related organism  and are carbon dated to determine the time in which the organisms existed. The study of fossils is called paleontology.


5 0
4 years ago
Read 2 more answers
Use of moist heat can control microbial growth in many circumstances, but heat-sensitive items and those susceptible to moisture
sattari [20]
<h2>Answer is option "b"</h2>

Explanation:

  • Non-ionizing radiation is radiation that has a lower frequency, or longer wavelength, in the EMR spectrum. These frequencies range from that of power lines, radios, and cell phones, up to visible light. Non-ionizing radiation is not powerful enough to break the chemical bonds in molecules. In general, it is not harmful to human health as radiation per se, but could be harmful in terms of the transfer of heat energy. An example of an emitter of non-ionizing radiation is a microwave oven.
  • Non-ionizing radiation is less harmful because the rays carry much less energy. Radio waves, light, and even heat are examples of non-ionizing radiation. For the most part, these kinds of radiation do not cause any damage. However, ultraviolet light is a kind of non-ionizing radiation that can be harmful - it can cause mutations in DNA
  • Non-ionizing radiation is limited to the lower energy range electromagnetic radiation, which is more commonly known as light. However, the light we can see with our eyes, visible light, is only a small section of the electromagnetic radiation spectrum as seen here
  • Hence the right answer is option "b"

7 0
3 years ago
Describe how the output of the Krebs cycle can be modified in additional processes of the carbon cycle.
Murljashka [212]

Answer:

Step 1. A carboxyl group is removed from pyruvate, releasing a molecule of carbon dioxide into the surrounding medium. (Note: carbon dioxide is one carbon attached to two oxygen atoms and is one of the major end products of cellular respiration. ) The result of this step is a two-carbon hydroxyethyl group bound to the enzyme pyruvate dehydrogenase; the lost carbon dioxide is the first of the six carbons from the original glucose molecule to be removed. This step proceeds twice for every molecule of glucose metabolized (remember: there are two pyruvate molecules produced at the end of glycolysis); thus, two of the six carbons will have been removed at the end of both of these steps.

Step 2. The hydroxyethyl group is oxidized to an acetyl group, and the electrons are picked up by NAD+, forming NADH (the reduced form of NAD+). The high- energy electrons from NADH will be used later by the cell to generate ATP for energy.

Step 3. The enzyme-bound acetyl group is transferred to CoA, producing a molecule of acetyl CoA. This molecule of acetyl CoA is then further converted to be used in the next pathway of metabolism, the citric acid cycle.

4 0
3 years ago
Other questions:
  • What causes a star to shine brightly
    13·2 answers
  • A client with cancer is diagnosed with typhitis. which emergency intervention would the nurse perform?
    11·1 answer
  • What is the largest external organ in a human body <br>​
    13·2 answers
  • The organic chemicals that help cell membranes to conserve internal fluids are:
    9·1 answer
  • Please help :) <br><br> Describe the end result of mitosis in eukaryotes
    15·1 answer
  • Is a teaspoon of salt dissolving an example of chemical change?
    6·1 answer
  • Why did aristotle most likely classify plants by their shape and animals by where they lived
    14·1 answer
  • Give two differences between permanent and merystamitic tissues​
    11·1 answer
  • During diffusion molecules move in what type of motion
    8·2 answers
  • 100 ponits!!!
    10·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!