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
gtnhenbr [62]
3 years ago
7

Glucose is a building block of starch. Which of the following best describes glucose?

Biology
1 answer:
Genrish500 [490]3 years ago
8 0

Answer:

carbohydrate

Explanation:

glucose is a kind of carbohydrate.

You might be interested in
Colored aleurone in the kernels of corn is due to the dominant allele R. The recessive allele r, when homozygous, produces color
abruzzese [7]

Answer: C. It was heterozygous for both genes.

Explanation: To produce a generation that has individuals with trait for colored aleurone in the kernels, the plant being analised has to have a dominant allele R. In the same way, to have offspring with the recessive trait, it has to carry the recessive allele r. So, the unknown plant has to be heterozygous for colored aleurone in the kernels, Rr.

The same thought can be applied to plant color: Since there are green and yellow plants, the unknown plant has to be heterozygous for that trait, Yy.

In conclusion, the unknown plant is heterozygous for both genes.

4 0
3 years ago
What is the electrical current passing through this ammeter?1
VMariaS [17]
Answer 1: 
Diagram is missing in question. Same is attached below.
Position of needle depicts amount of current flowing through the circuit. From the diagram, it can be seen that deflection needle is in between 8 amperes and 9 amperes. This signifies that, current is more than 8 amperes, but less than 9 amperes. Hence correct answer is option B: 8.5 amperes.


Answer 2: 
Diagram is missing in question. Same is attached below.
A wavelength is the distance between two successive troughs or two successive crests of the wave. Energy, frequency and wavelength of electromagnetic wavelengths are dependent on each other. In present case, X is a true measurement of the wavelenght. Hence, correct answer is option B: X.

Answer 3: 
Diagram is missing in question. Same is attached below.
Magnetic field strength is maximum where the magnetic field density is maximum. From the diagram, it can be seen that, in the region around both north pole and south pole, magnetic field density of identical, as well as very high. Hence, correct answer is option C: Around both poles.


Answer 4: 
<span>Alexandra was preparing to go on a hike in the woods. She gathered the equipment she would need and placed it on the counter. By chance, she placed her compass near an electrical outlet. Although the compass was not moving, the compass needle turned because the electrical current in the outlet produced a magnetic field. 
Reason: </span> When an electric current flows through a circuit, it generates the magnetic field around it. Due to this, the needle of compass got deflected, since it was in vicinity of magnetic field that was generated upon passage of electric current.


Answer 5: 
Diagram is missing in question. Same is attached below.
Correct answer is option B: Using the same number of turns of wire for each electromagnet. This is because, in order to study effect nails in the core of an electromagnet, it would be practical to use same number of batteries and same number of turns of wires in all the experiments. Thus, the variation in magnetism would be solely because of nails present in electromagnet.

Answer 6:
Ms. Markas takes a Thermos bottle filled with hot coffee to work each day. The thermos bottle keeps the coffee hot by slowing heat transfer from the inside to the outside of the container. This is because, thermos acts as in isolated system. An isolated system is one  which does not exchange heat as well as matter with surrounding. Due to this, coffee remains hot for long time.


Answer 7:
Correct answer: Option C-Black T-shirt
Reason: The radiation that is absorbed by the compound is dependent on the energy level separation between different electronic energy level. In energy level separation lies in visible region of electromagnetic radiation, then compound is colored. In case of black colour compounds, it absorbs light of all possible wavelenghts.

Answer 8: 
Diagram is missing in question. Same is attached below.
Correct answer: option B i.e. have a greater frequency than short wavelengths.
Reason:
We know that, E = hv = hc/∧
where, v = frequency of electromagnetic radiation
∧ = wavelenght.

From above equation, it can be seen that frequency and wavelenght have inverse relation. 
Therefore, long wavelengths have a greater frequency than short wavelengths.


Answer 9: 
 Refractive index is  the ratio of the velocity of light in a vacuum to its velocity in a specified medium. In present case, medium used is glass. The best way to determine a glass block's index of refraction is using Snell's Law.

According to Snell's Law, refractive index = \frac{sinQ1}{snQ2}
where, Q1 = angle of incident ray
Q2 = angle of refracted ray. 


Answer 10: 
Joseph studied whether different materials can block certain electromagnetic waves by testing television reception in different parts of the house. At each part of the house, Joseph used a different antenna. The experiment could have been improved by using the same antenna during each trial. Because, currently Joseph has two variable i.e. materials and antenna. This will complicate the experiments, as it would be difficult for Joseph to identify the material  that would be best suited for blocking certain electromagnetic waves. On other hand, if Joseph has used same antenna, there would have been only one variable i.e. materials. 

7 0
3 years ago
Which of the following would slow down gas exchange between the blood and alveolar air? A decrease in nitrogen solubility An inc
polet [3.4K]

Answer:

An increase in membrane thickness

Explanation:

Gaseous exchange occurs in relation to Fick's Law which states:

'the rate of diffusion is proportional to both the surface area and concentration difference and is inversely proportional to the thickness of the membrane

Therefore, based on this law, an increase in the thickness of the membrane will result in a decreased diffusion rate which will in turn slow down the process of gaseous exchange

6 0
3 years ago
10. Which criterion is not used to describe a mass movement event?
My name is Ann [436]

your answer is:

B. The angle of the slope.

4 0
3 years ago
Which statement best distinguishes plant cells and animal Cells?
olga nikolaevna [1]
It has somthing to do with the cell wall/ cell membrane
6 0
3 years ago
Read 2 more answers
Other questions:
  • X-rays _____.
    12·1 answer
  • where did the idea for it come from, what did sputnik do and can you think of anything else about sputnik,
    5·1 answer
  • One advantage of experiments is that they ___________.
    6·2 answers
  • You discover an organism that has scaly skin and is aquatic but returns to the land to reproduce. what else would you expect to
    14·1 answer
  • Leaves are composed of vascular tissue that brings water into the ground tissue can conduct photosynthesis based on this informa
    6·1 answer
  • The elevation of the basement floor in a building is -14 ft. The elevation of the roof is 36 feet. What is the distance from the
    6·1 answer
  • What is Alzheimer’s Disease and how is it caused from the chromosomes?​
    5·1 answer
  • Gold, quartz, and talc are minerals. Copper and iron are types of ore. What is the difference between minerals and ores?
    15·1 answer
  • Question 13 (1 point) Which of the following processes add methane (CH4) to the atmosphere in the carbon cycle?
    10·1 answer
  • We should NEVER keep volatile solvents, such as ether, acetone, or benzene, in an open beaker or Erlenmeyer flask because vapors
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!