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- Question
Why are viruses considered to be nonliving?
Options- A. Viruses have no metabolic activity.
- B. Viruses don't have any cells, like living organisms.
- C. Viruses can't produce new proteins, DNA, or RNA.
- D. All the above
- Correct Answer
- All the above
ExplanationViruses are responsible for some of the most dangerous and deadly diseases including influenza, ebola, rabies and smallpox.
Despite their potential to kill, these potent pathogens are in fact considered to be non-living.
Reasons:
1. Viruses don't have any cells, like living organisms do. They have protein coats but no organelles or other cellular machinery. Just a little DNA packet.
2. Viruses can't produce new proteins, DNA, or RNA and therefore are unable to reproduce on their own. They need infected cells' machinery to make all of these and produce new virons.
3. Viruses have no metabolic activity. They don't use or convert energy and have no ongoing interior processes. They're basically just inert structures until they impact a potential host cell.
- 1. Wild animals are not considered a natural resource.
Options- A. TRUE
- B. FALSE Discuss
- 2. Energy is measured in units called
Options- A. Newtons
- B. Watts
- C. Joules
- D. Ohm/mtr Discuss
- 3. Which of the following causes tornadoes?
Options- A. condensation
- B. dry climates
- C. wind shear
- D. stationary fronts Discuss
- 4. Which of the following is NOT true about energy balance?
Options- A. Inactive people use more energy so they should consume fewer calories.
- B. Energy balance is the balance between the amount of calories consumed and the amount used for energy.
- C. Energy balance is influenced by the amount of exercise one gets and their dietary habits.
- D. Stored body fat will increase if calorie intake is greater than energy used. Discuss
- 5. Which of the following is a characteristic of all minerals?
Options- A. Crystalline solids
- B. Minerals are inorganic
- C. All minerals are formed in a natural process
- D. All the above Discuss
- 6. What is the chemical name for vitamin A?
Options- A. Retinol
- B. Riboflavin
- C. Thiamine
- D. Niacin Discuss
- 7. Which of the following is not a sedimentary structure?
Options- A. Magma emplacement
- B. Mud cracks
- C. Ripple marks
- D. Cross beds Discuss
- 8. Carbohydrates, lipids and proteins are classified as
Options- A. Macromolecules
- B. Biomolecules
- C. Macronutrients
- D. All the above Discuss
- 9. Both skin and lung cancer are classified as carcinomas.
Options- A. TRUE
- B. FALSE Discuss
- 10. Plants are photoautotrophs. What does this mean? Discuss
General Science problems
Search Results
Correct Answer: FALSE
Explanation:
Natural resources are resources taken from nature to satisfy our needs. As wild animals are on the earth naturally, they are considered as natural resources.
Hence, the given statement is false.
Correct Answer: Joules
Explanation:
Energy is measured in units called Joules.
Joule is unit of work or energy in the International System of Units (SI) which is equal to the work done by a force of one newton acting through one metre.
1 Joule = 107 ergs or 0.7377 foot-pounds.
Correct Answer: dry climates
Explanation:
Conditions suitable for the formation of a tornado develop when varying temperatures and humidity come together and form thunderclouds. This refers to the presence of warm and moist condition in the lower atmosphere and cold and dry conditions in the upper atmosphere. The place where these varying masses of air meet is known as the dry-line. Such conditions, which are suitable for the formation of a tornado, are most often observed just before a low pressure system develops.
Once the ideal conditions occur, the warm air tries to rise in the atmosphere, while the cold air blocks it. This makes the air in between rotate horizontally. In the meanwhile, the land is heated by the Sun, and hence, the air near the ground becomes warm and starts rising. Continuous fueling by the heat energy from the Sun ensures that the warm air has an upper hand over cold air. As a result of this, the cold air at the top starts sinking and the warm air below starts rising in a spinning motion. As the amount of warm air increases, the formation gains height and becomes intense. The intensity of these devastating tornadoes is such that they can clear off anything that comes in their path.
Correct Answer: Inactive people use more energy so they should consume fewer calories.
Explanation:
The given statement option A) is False regarding energy balance.
It should be "Inactive people use less energy so they should consume fewer calories."
Correct Answer: All the above
Explanation:
Common properties of Minerals are :
1. All minerals are formed in a natural process.
2. Minerals are inorganic
3. Minerals are crystalline solids.
4. Every mineral is an element or compound with a definite chemical composition.
Correct Answer: Retinol
Explanation:
Vitamin A is a group of unsaturated nutritional organic compounds that includes retinol, retinal, retinoic acid, and several provitamin A carotenoids.
IUPAC Name :: (2E,4E,6E,8E)-3,7-dimethyl-9-(2,6,6-trimethylcyclohexen-1-yl)nona-2,4,6,8-tetraen-1-ol
Vitamin Name - Chemical Name
Vitamin A - Retinol
Vitamin B1 - Thiamine
Vitamin B2 - Riboflavin
Vitamin B3 - Niacin
Vitamin B5 - Pantothenic acid
Vitamin B6 - Pyridoxin
Vitamin B7 - Biotin
Vitamin B9 - Folic acid
Vitamin B12 - Cyanocobalamin
Vitamin C - Ascorbic acid
Vitamin D - Calciferol
Vitamin E - Tocoferol
Vitamin K - Phylloquinone and Menaquinones
Correct Answer: Magma emplacement
Explanation:
sedimentary features all are related to water deposited minerals and rocks.
Which of your choices has nothing to do with water is not a sedimwntary structure. Here in the given choices Magma emplacement is not a sedimentary structure.
Correct Answer: All the above
Explanation:
Carbohydrates, together with lipids, proteins and nucleic acids, are one of the four major classes of biologically essential organic molecules found in all living organisms. They not only provide energy for vital metabolic reactions but also supply the building materials for normal structure, growth and repair. Your body needs relatively large quantities of carbohydrates, fats and protein for optimal function, hence their classification as macronutrients.
Correct Answer: TRUE
Explanation:
Carcinomas are cancers that begin in tissues lining the inner or outer surfaces of the body where the DNA of the cells become damaged. Lung cancer and one type of skin cancer (squamous-cell carcinoma) are carcinomas.
Hence, the given statement is TRUE.
Correct Answer: Photoautotrophs are those organisms that can make their own food using sun light with the help of the process of photosynthesis Plants can prepare their own food using sunlight Hence they are Photoautotrophs
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