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

Fossil fuels increase the amount of free carbon in the global carbon cycle.

Fossil fuels are those fuels which are obtained from the conversion of fossils of dead plants and animal which over a long period of time and under intense heat and pressure are converted to fuels.

Examples of fossil fuels are coal, natural gas and petroleum.

Fossil fuels mostly contain carbon which is released into the atmosphere in the form of carbon dioxide when these fuels are burned.

Therefore, fossil fuels increase the amount of free carbon in the global carbon cycle.

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Answer:

Direction

Explanation:

Answer:

Direction

Explanation:

pls mark brainliest

Answer:

The answer is D

Explanation:

Answer:

D.

Explanation:

Whenever any clinical trail is conducted then the complete process is kept unbaised. Double blind testing can be defined as an experiment in which neither the researcher nor the person who is getting placebo and who is getting treatment knows. This is done in the clinical trials to keep the whole process unbaised.

Answer:

B. Hydroxide ion

Explanation:

An acid is an iconic compound that produces positive hydrogen ions/ hydroxide ion when dissolved in water.

The measurements that could create more than one triangle are options C and option D.

Explanation: For a triangle to exist, the sum of any two sides of a triangle must be greater than the length of the third side.

In option C, the angles measuring 100°, 10°, and 70° do not satisfy this condition, as the sum of the angles 10° and 70° is less than 100°, making it impossible to form a triangle. However, by rearranging the angles, such as 10°, 70°, and 100°, we can create a valid triangle.

In option D, the angles measuring 110°, 40°, and 40° also violate the condition for a triangle, as the sum of the angles 40° and 40° is less than 110°. However, by rearranging the angles, such as 40°, 40°, and 110°, we can create a valid triangle.

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Answer:

Living things use structural strategies and behavioral strategies that increase their chances of reproduction.

Living things do so to reach the reproduction goal that is to pass genes on to offspring. For example: the pouch of a kangaroo, a frog croaking a mating call,  and colorful petals of flower etcetera helps in increasing mating chances so that their genes can be followed to the generation.

The Answer is:

K, Ca, Sc

Answer:

K, Ca, Sc

Explanation:

K, Ca, Sc are in the same period while the other choices are not.

Let's define a couple of key terms:

• Lytic Cycle,: The lytic cycle is the "faster" virus cycle of the two. It consists of usually ,bacteriophages, that infect a host cell, replicates, then ,destroys, the cell.

• Lysogenic Cycle,: The lysogenic cycle is the "longer" of the two cycles. It consists of viruses that infect the host cell but the viral genome ,fuses, with the host's DNA, lying ,dormant, for a long time.

Let's take what we just defined and apply it to the given data table.

We are given a data table with several different known viruses and their incubation time. This is a key category to look at to determine whether the virus follows the lytic or lysogenic cycle.

• Measles | Incubation Time: 9 - 11 days |

Since the incubation time is short, this virus follows the lytic cycle.

• Shingles | Incubation Time: years |

Since the incubation time is long, this virus follows the lysogenic cycle.

• Warts | Incubation Time: months |

Since the incubation time is long, this virus follows the lysogenic cycle.

• Cold | Incubation Time: 2 - 4 days |

Since the incubation time is short, this virus follows the lytic cycle.

• HIV | Incubation Time: 2 - 5 years |

Since the incubation time is long, this virus follows the lysogenic cycle.

Now we have filled out the entire data table!

Tiktaalik, an extinct fish species, could have existed in a Canadian environment due to the presence of shallow freshwater environments with low oxygen levels, which would have been suitable for its lung-like structure and ability to breathe air.

Tiktaalik is an extinct genus of fish that lived about 385 million years ago during the Late Devonian period. It is considered a transitional fossil, as it has characteristics of both fish and early tetrapods, four-legged land-dwelling animals. Tiktaalik could have existed in a Canadian environment, as it is known to have been found in the Canadian Arctic, specifically in the Elpistostege watsoni fossil beds of the Nunavut territory.

The environment during Late Devonian period in this region was a shallow freshwater delta or coastal plain that was home to a diverse array of fish and other aquatic organisms. Tiktaalik likely lived in the shallow water, and had adaptations such as flexible neck and fins with bones that resemble the limb bones of four-legged animals, which would have allowed it to move in shallow water and on land.

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Answer:

Question 1: erythrocyte

Question 2: leukocyte

Explanation:

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When compared to producing the same amount of conventional crude, tar sands extraction emits up to three times higher greenhouse gas emissions.

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Answer:

A

If both Assertion & Reason are true and the reason is the correct explanation of the assertion, then mark (1).

B

If both Assertion & Reason are true but the reason is not the correct explanation of the assertion, then mark (2)

C

If Assertion is true statement but Reason is false, then mark (3)

D

If both Assertion and Reason are false statements, then mark (4)

Explanation:Substrate-level phosphorylation is a type of metabolic reaction that results in the formation of Adenosine Triphosphate (ATP) of Guanosine Triphosphat (GTP) by the direct transfer and donation of a phosphoryl (PO3) group to Adenosine Diphosphate (ADP) of Guanosine Diposphate (GDP) from a phosphorylated reactive intermediate.

In glycolysis substrate level phosphorylation occurs in following two reactions

(i) 2molecules of 3-phosphoglyceric acid react with 2 molecules of ADP to from 2 molecules of 3-phosphoglyceric acid and 2 molecules of ATP.

1,3−diphosphoglyceric2 mol eculesacid+2ADP−→−−−−−−−−phosphotransferaseMg2+2−phosphoglyceric2mol eculesacid+2ATP

(ii) 2 mol ecules of phosphoenolpyruvic acid reacts with 2 mol ecules of ADP to from 2 mol ecules of pyruvic acid and 2ATP.

1−phosphoenolpyruvic acid2mol ecules2ADP−→−−−−−−Pyruvic kinaseMg2+Pyruvic acid2mol ecuels+2ATP

Answer: A

Explanation:                  

Answer: coriolis effect

Explanation: because earth rotates as the air is moving, the winds in the northern hemisphere curve to the right and air in the southern hemisphere curves to the left.

Answer and Explanation:

The brain is composed of three main structures, the cerebrum, cerebellum, and brain stem. The brain sends chemical and electrical signals throughout the body to regulate different biological functions and sense environmental changes. The brain communicates with the majority of the body through the spinal cord.

The polarity of water molecules is crucial to the formation and stability of cell membranes. Without this polarity, water would not be able to form hydrogen bonds, interact with polar molecules, or form stable cell membranes .

Water molecules are composed of two hydrogen atoms and one oxygen atom, and they have a slight negative charge on one end and a slight positive charge on the other.

This arrangement is due to the unequal sharing of electrons between the atoms, with the oxygen atom having a stronger pull on the electrons than the hydrogen atoms. This phenomenon is called polarity, and it is crucial to the unique properties of water.

First, water molecules would not be able to form hydrogen bonds with each other, which are crucial for many of water's unique properties. Hydrogen bonds occur between the positive and negative ends of different water molecules and give water its high boiling point, high surface tension, and the ability to dissolve many substances.

Furthermore, the polarity of water molecules is crucial to the formation and stability of cell membranes. The hydrophilic, or water-loving, heads of phospholipids are attracted to the polar water molecules, while the hydrophobic, or water-fearing, tails face away from the water.

In summary, the polarity of water molecules is crucial to many of its unique properties and is essential to many biological processes. Without this polarity, water would not be able to form hydrogen bonds, interact with polar molecules, or form stable cell membranes.

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A:  Dump trucks are so big or fat because they are used to haul large loads of loose materials, such as dirt, rocks, sand, and coal, to construction sites, factories, or power plants. The open bed features a hinge at the rear of the truck so that hydraulic pistons located at the front of the bed can lift the front to dump the contents of the bed at the delivery site.   The title of the world's largest dump truck went to the BelAZ 75710 which began moving rocks and coal in a mine in Siberia in 2014. The BelAZ 75710 is as long as two buses parked end to end, six times more powerful than modern Formula 1 racing cars, and heavier than a loaded Airbus A380 airplane. The entire vehicle costs over $6 million with each tire costing $42,000.

In short, they are big fat chonkers to carry big chonky stuff.

Answer:

Urban areas provide a relatively new habitat in which to conserve birds, and we show that nestboxes and other artificial nest sites can be nests for birds to make a home in. Making these boxes also help the birds feel safer so they will reproduce and make more birds.

Explanation:

Kinds of transport

There are two main types of transport:

-Passive transport: is down the concentration gradient and does not require energy. Here we can find

a) difussion: through the cell membrane and there is no protein involved.

b) osmosis: is the passage of water molecules through the cell membrane.

-Active transport: there's a use of energy implied and the molecule is transported against its concentration gradient.

Therefore, the correct answer to this question is active transport.

No, it would you be able to extract and view DNA from your cheek cells if the order of the procedure changed.

Deoxyribonucleic acid is a polymer composed of two polynucleotide chains that coil around each other to form a double helix. The polymer carries genetic instructions for the development, functioning, growth and reproduction of all known organisms and many viruses.

DNA contains the instructions needed for an organism to develop, survive and reproduce. To carry out these functions, DNA sequences must be converted into messages that can be used to produce proteins.

DNA is a complex, long-chained molecule that contains the genetic blueprint for building and maintaining all living organisms. Found in nearly all cells, DNA carries the instructions needed to create proteins.

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Porifera and earthworms are different in physical characteristics and habitat, but both are multicellular and belong to the Animalia kingdom.

Porifera and worms are two totally different creatures with unmistakable qualities and elements. Porifera, otherwise called wipes, have a place with the phylum Porifera, while worms have a place with the phylum Annelida. Porifera need genuine tissues and organs and are sessile channel feeders that live in oceanic conditions, while night crawlers are fragmented worms that live in soil conditions, with a stomach related framework and a sensory system.

In spite of these distinctions, Porifera and night crawlers share a few similitudes. Both are multicellular creatures with specific cells and tissues, and they have a place with the realm Animalia. Furthermore, the two of them assume significant biological parts in their particular surroundings.

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Answer:

The magma cools very slowly. As magma cools minerals are formed into an interlocking arrangement producing an igneous rock. As magma cools it undergoes reactions that form minerals. The rate of cooling is very important.

Explanation:

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