What are differences between the structures ofDNA and RNA?

Answer: i got your back

Astronomy (from Greek: ἀστρονομία, literally meaning the science that studies the laws of the stars) is a natural science that studies celestial objects and phenomena. It uses mathematics, physics, and chemistry in order to explain their origin and evolution. Objects of interest include planets, moons, stars, nebulae, galaxies, and comets. Relevant phenomena include supernova explosions, gamma ray bursts, quasars, blazars, pulsars, and cosmic microwave background radiation. More generally, astronomy studies everything that originates beyond Earth's atmosphere. Cosmology is a branch of astronomy that studies the universe as a whole.[1]

Astronomy is one of the oldest natural sciences. The early civilizations in recorded history made methodical observations of the night sky. These include the Babylonians, Greeks, Indians, Egyptians, Chinese, Maya, and many ancient indigenous peoples of the Americas. In the past, astronomy included disciplines as diverse as astrometry, celestial navigation, observational astronomy, and the making of calendars. Nowadays, professional astronomy is often said to be the same as astrophysics.[2]

Professional astronomy is split into observational and theoretical branches. Observational astronomy is focused on acquiring data from observations of astronomical objects. This data is then analyzed using basic principles of physics. Theoretical astronomy is oriented toward the development of computer or analytical models to describe astronomical objects and phenomena. These two fields complement each other. Theoretical astronomy seeks to explain observational results and observations are used to confirm theoretical results.

Astronomy is one of the few sciences in which amateurs play an active role. This is especially true for the discovery and observation of transient events. Amateur astronomers have helped with many important discoveries, such as finding new comets.

Explanation:

Organelles are specialized structures that perform various jobs inside cells.

Answer:

from the stomach to the small intestine

Answer:

the answer is c

Explanation:

filtration

Fat

When body doesn't get carbs it uses fat.

The popiletus muscle is the muscle that extends the knee , laterally rotates the tibia.

The popliteus muscle is a little muscle that extends the knee and form muscle the floor of the popliteal fossa. It is part of deep posterior leg muscles, that rotate laterally tibialis posterior, flexor digitorum longus and flexor hallucis longus.

The popliteus muscle extends to the knee joint. It is formed from the femur and the posterior horn of the lateral meniscus, and also extend to the proximal tibia.

The popliteus muscle help to function in an gait cycle by causing the flexion of the extended (“locked”) knee.

Therefore, The popiletus muscle is the muscle that extends the knee , laterally rotates the tibia.

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Answer:

The shoulder.

Explanation:

The shoulder is the most flexible joint in the body, making it the most susceptible to instability and injury. This mobility provides the upper extremity with tremendous range of motion. The shoulder join is also known as a 'ball-and-socket' joint.

Answer:

(a)

Explanation:

community ha iska answer

Answer:

Because the screen becomes black and the screen lets the light come. Hope this helps!!

Explanation:

Answer:

It is a geyser that formed due to water heated by magma erupting at Earth’s surface.

Answer: d. It is a geyser that formed due to water heated by magma erupting at Earth’s surface.

Explanation:

Answer: B

Explanation:

Monomers are atoms or small molecules that bond together to form more complex structures such as polymers (which are long chain compounds)

Monomers are long chain compounds. So, the correct option is (C).

A monomer is defined as a molecule which can react with other monomer molecules to form a larger polymer chain. It is also a three-dimensional network formed by a process called polymerization.

These are the molecules of any of a class of compounds mainly organic compounds which can react with other molecules to form very large molecules known as polymers.

Examples of monomers are glucose, vinyl chloride, amino acids and ethylene where each monomer is linked to form different types of polymers like glucose, glycosidic bonds which link sugars to form polymers like glycogen, starch and cellulose binds monomers.

Thus, Monomers are long chain compounds. So, the correct option is (C).

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Answer:

UASG; Gal4

Explanation:

Answer:

D, Isosceles and right

Explanation:

you already know it's right bc of the little 90 degrees box so the only two right answers could be A and D but its not A bc all the sides aren't the same length so its D. Hope this helped! :)

The second law states that the acceleration of an object is dependent upon two variables - the net force acting upon the object and the mass of the object. The acceleration of an object depends directly upon the net force acting upon the object, and inversely upon the mass of the object.

Answers won't help, but a hint will.

Answer:

Its D

Explanation:

Took the test

Answer:

organisms respire or decompose (decay)

Answer:

Drip Irrigation

Explanation:

Answer:

Clouds form when the invisible water vapor in the air condenses into visible water droplets or ice crystals. For this to happen, the parcel of air must be saturated, i.e. unable to hold all the water it contains in vapor form, so it starts to condense into a liquid or solid form.

Explanation:

Answer:

The two cycles include two different elements. The other large difference between these two cycles is that carbon cycles through the atmosphere whereas phosphorus does not . The phosphorous cycle is also slower than the carbon cycle.

Answer: Researchers argue that robust Australopithecines should be classified in a separate genus called Paranthropus.

Explanation:  The "robust" australopiths are a group of fossil hominins that existed in East and southern Africa between approximately 2.5 and 1.4 million years ago (Ma). They are referred to here as members of the genus Paranthropus, though considerable disagreement about their proper taxonomy persists. (credit to the internet)

Answer:

Myelin

Explanation: is correct

Answer:

3: Myelin

Explanation:

The key that allows a cell to progress beyond the restriction point is the phosphorylation of specific proteins (for example RB) by Cdk. The cyclin-dependent kinases (CDKs) are able to phosphorylate different substrates.

Cyclins regulate the progression of the cell cycle by their interaction with cyclin-dependent kinases (Cdks).

This binding activates the Cdks, thereby converting them into functional enzymes that phosphorylate target proteins and thus regulate cell cycle progression by bypassing restriction points of the cell cycle.

CDKs can phosphorylate different substrates by transferring phosphate groups from adenosine triphosphate (ATP) to specific amino acidic residues in these substrates.

For example, CDKs phosphorylate Rb proteins and thus regulate their activity during the cell cycle.

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Replication occurs in three major steps: the opening of the double helix and separation of the DNA strands, the priming of the template strand, and the assembly of the new DNA segment.

The three steps that are required for DNA  replication are initiation, elongation and termination.

The process in which DNA of a cell under go duplication to produce two copies during S-phase of cell cycle called as DNA replication.

It involves 3 steps such as initiation step where the origin of replication of DNA molecule undergo unwinding into two DNA strands.

An incomplete unzipping by forming replication fork is created is catalyzed by the helicase enzyme.

Secondly in elongation step the DNA polymerase enzymes make the complementary sequence against each parent template strand.  

It is an unidirectional, one strand which is synthesized in a continuous manner called leading strand, the strand which is synthesized in a discontinuous manner called lagging strand with Okazaki fragments.

Termination occurs in the last step, when the parent molecule has been completely replicated.

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