What is this chemical structure?

Answer options
A. Nucleotide
B. Amino Acid
C. Phospholipid
D. Nucleoside

Answer:

the answer is a, i believe:)

Explanation:

hope this helps love:))

Which structure is responsible for transporting materials within the cell?
lysosome
vacuoles
Golgi bodies
endoplasmic reticulum (ER)

What is most likely the author’s purpose for writing this article? to explain how to classify living things to explain the production of food and how life uses energy to explain the importance of flies and maggots to explain past experiments that disproved spontaneous generation



HURRY UP AND DON"T BE ON NO FUNNY STUFF!!!!!!!!!!!!!!

Which of the following muscles can you control:
Biceps
Quadriceps
Deltoids
All of the above

If you were dropped off on the North American continent at a latitude of 40° N, which of the following climate zones would you discover there?

Which of these is not a characteristic of all living things?

hat do the following results from the TEST FOR LIFE tab indicate about the sample?

What are the radioactive elements?

In the model of the cycle of energy above, what is job of the sun?

When moving up the staircase, which direction will you be moving the decimal? (Metric system work)

which of the following is a personal quality

What is the job of a cell's selectively permeable membrane?
O A
To control materials entering and leaving the cell
O B.
To regulate energy production in the cell
thing
O C.
To create a second layer of rigid support and protection
O D.
To keep mitochondria from using nuclear material

body to rid itself of wastes the normal chemical composition of urine is mostly water but it also includes nitrogenous molecules creatine and other metabolic waste units urine is a solution that can be greater than 95% of water what property of water makes watee so helpful in ridding the body of waste


A.water cohesive forces create surface tension upon its surface
B. Water is a versatile solvent
C. Water is expands upon freezing
D.water has a high specific heat

RNA is chemically similar to DNA except that its sugars have an additional oxygen atom,
and the base thymine is replaced by a structurally similar base called

Does anyone know all the answers?????

The organism shown is a free-living one that is anchored to the
bottom of ponds and streams during one stage of its life cycle.
What is the common name of the group to which this organism
belongs?
O cnidarians
O rotifers
O bryozoans
O mollusks

One of the first organisms to develop a new ecosystem is

Acid rain is rain that carries unusually high acids that can break down rocks. This is an example of a __________ interaction.
A) atmosphere and geosphere
B) hydrosphere and chronosphere
C) chronosphere and biosphere
D) geosphere and chronosphere
E) hydrosphere and geosphere

il mark u brainliest 50 points
Which is one characteristic that is used to identify types of metamorphic rocks?

color
rock size
grain arrangement
type of rock before metamorphosis
------------------------------------------------------------------------------------------------------------------------
In addition to liquid precipitation, which are present when freezing rain occurs?

ice pellets
snowflakes
cold surfaces
warm temperatures
----------------------------------------------------------------------------------------------------------------------
Which describes a condition of the neritic zone?

few organisms
ample sunlight
changing salinity
frigid temperatures

1. The (incorrect) belief that life is produced by a mysterious spirit or force is called: a. spiritualism b. recidivism C. vitalism d. hoodoo-voodooism​

Please help need it

Bacteria have these things:
A. Cell wall, nucleus and cell membrane
B. No membrane bound organelles, cell membrane and cell wall
C. No DNA, cell membrane and no cell wall
D. Have no organelles or DNA

There was a crisis situation . You have two patients , on have A blood . Both patients are in critical condition blood . You have one pint of A- blood and one pinto which patient and why ? (Hint : which patient is more antigen before or after the transfusion ? ) male and one female who each one needs one pint of would you give to have an exposure to Rh O blood more likely to have an

During winter vacation, you learn that a polar jet stream is traveling across the United States. The forecaster says there will be big changes in the
weather as the jet stream moves past your town in Florida
What causes wind? Choose the two that apply.
<
A
uneven heating of Earth's surface
B В
warm air sinking while cold air rises
C
air movement from high to low pressure
D
air movement from low to high pressure

If a radiometric age can be determined is there any use for a relative age? Why or why not?

HELPPPPPPPPP PLEASEEEEEEEEEEEEEEEEEEEEEEE. PLEASEEEEEEEEEEEEEEEQuestion 2 Multiple Choice Worth 4 points)
What molecule is represented by the molecular model shown below?
O Glucose
O Adenosine triphosphate (ATP)
O Adenosine diphosphate (ADP)
O Starch

Anna stated that carbon monoxide could not be organic because it is a gas. what is wrong with her statement?

A.) her statement is correct.

B.) Organic molecules can be gases.

C.) carbon monoxide is not a gas.

D.) Carbon monoxide is not organic because it is not produced by living things.

Which phrase best defines topography?

Please fully explain the answer​

A scientist was fishing in a pond and decided to collect a water sample to examine back in the lab.after looking in the microscope he saw a small aquatic organism.the organism appeared to have branchlike appendages coming out of his body.it seemed to be ingesting some smaller organism that appeared to be daphnia (water fleas)which kingdom should this organism be classified in?

A.fungi
B.eubacteria or archaebacteria
C.plant
D.animal

4. Choose the correct list of five major current environmental challenges.
A. Climate change, species loss, environmental degradation, pollution, and environmental justice
B. Climate change, species loss, crime, food shortage, pollution
C. Species loss, crime, water shortages, global cooling, food shortage
D. Environmental degradation, water shortage, environmental justice, food shortage, pollution
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