BIOLOGY HIGH SCHOOL

Which macromolecule is the primary energy source for organisms?Question 2 options:
A) Sunlight
B) Protein
C) Fat
D) Carbohydrate
E) Nucleic acid

Answers

Answer 1
Answer: The correct option is D.
Carbohydrate is the main energy source for living organism. When carbohydrate food are consumed, the digestive enzymes break the carbohydrate down to glucose. The body cells use glucose as a source of fuel to produce energy which they use for their metabolic activities.

Related Questions

What organelle is found in the cytoplasm
A student investigated how the pressure in a diving pool varied with depth. He filled a balloon with helium and tied it to the end of a long pole. Then he submerged the balloon to various depths and observed the result. Which one of the following best describes what happed to the balloon as it went deeper? (a) The balloon got larger because the pressure of the water around it increased compared with the pressure inside the balloon. (b) The balloon got larger because the pressure of the water around it decreased compared with the pressure inside the balloon. (c) The balloon got smaller because the pressure of the water around it increased compared with the pressure inside the balloon. (d) The balloon got smaller because the pressure of the water around it decreased compared with the pressure inside the balloon.
Rising levels of carbon dioxide most likely
An accident at a chemical factory resulted in contamination of a nearby river. Which of the following types of information would best inform the decisions of local policy makers? A. Prior bacterial counts in the river. B. Salary levels for workers at the factory. C. Ongoing water quality monitoring at the site. D. Historical analysis of building code violations in the region.
In 1929, a.v. hill conducted a series of experiments with frogs that led him to conclude that lactic acid accumulation is the primary cause of failure in muscle tissue. today, the role of lactic acid in muscle fatigue is still a hotly debated topic. which of the following arguments pose a credible challenge to a.v. hill's conclusions about the effect of lactic acid on muscle fatigue?

What created the abundant agriculture in the Napa Valley of California?A:oceanic-continental convergence
B: an earthquake
C: a tsunami
D:continental-continental convergence

Answers

Answer:

The answer is part A

Explanation:

How are the frog nostrils different from human nostrils

Answers

frog nostrils are slits while our nostrils are holes and come out a little bit

An example of ____ is when birds feed on parasitic insects they pick off the skin of large animals such as elephants or bison.A. competition
B. predation
C. mutual ism
D. parasitism

Answers

C.mutualism, hope i helped
I believe the right answer is c. Mutualism.

Finding a high place to wait is a safety measure during aa.

thunderstorm.

c.

hurricane.
b.

tornado.

d.

flash flood.

Answers

The correct answer is Flash flood.

A sudden flood that is a result of heavy rain is called a flash flood. It lies in the low lying areas. The rain might sometimes accompany thunderstorm, hurricane, or snowfield. The difference between a flash flood and normal flood is that it lasts less than till 6 hours. In this case a high place can be used as a temporary shelter and once the flash flood is gone, anyone can shift to his or her normal routine.
Flash flood .................

How do you conduct the layering technique?-You cut a piece of the plant's leaf, root, or stem off and bury it to produce adventitious roots and a new plant.
-You place the plant stem or bud into another plant with a good root system to grow a new plant.
-You bury a piece of the stem to produce adventitious roots and then cut the new plant away from the parent plant.

Answers

-You bury a piece of the stem to produce adventitious roots and then cut the new plant away from the parent plant.

Called the natural layering

These stems are vital and needed for active transportation of the water molecules either for the production of food for the plants or to supply sufficient moisture and hydration for other cellular activities in autotrophs however, the most essential function of the stem is also to support the photosynthetic mechanism of plants which is to make their own food and obtain energy from it called photosynthesis which needs sunlight, carbon, and water.

Answer:

You bury a piece of the stem to produce adventitious roots and then cut the new plant away from the parent plant.

Explanation:

Is a source of genetic variation that refers to a random error in the genetic code.

Answers

Mutations is  source of genetic variation that refers to a random error in he genetic code

Answer: Mutation

Explanation:

A mutation is a random change in a cell's genetic code due to a variety of causes. The change can be small and insignificant, or it can be major. Mutations can be passed onto offspring through reproduction, thus increasing the genetic variation within a population.
Other Questions
Cyanobacteria have been genetically modified to produce _______.a. oil b. natural gas c. isobutanol d. none of the above
WORTH 25 POINTS ! Question 2 of 10 The model represents DNA replication. DODH Structure 1 RNA primer Structure 2 Enzyme 1 Which statement best describes structure 1? Enzyme 2 Original DNA A. It is the lagging strand because it uses RNA primers. B. It is the lagging strand because it is behind enzyme 1. OC. It is the leading strand because it is being built continuously. D. It is the leading strand because it is being built in the 3' to 5 direction.
How is most DNA duplication is the body accomplished?
The cladogram below was created to show the evolutionary relationships between different vertebrates.Which of the following inferences can be made, based on this information?a. Amphibians and birds share a more recent common evolutionary ancestor than sharks and birds.b. Birds and sharks do not share a common evolutionary ancestor.c. Having a bony skeleton did not provide an evolutionary advantage to sharks or ray-finned fish.d. Rabbits and primates diverged more recently than crocodiles and birds.