7 grad science help

The correction needed is that fossil fuels are in the lithosphere (rocks), not the hydrosphere (water).

Transcription is a process by which RNA is obtained from a strand of template DNA.

For this to happen, the DNA strand must first be opened allowing the RNA polymerase to dock and start binding nucleotides depending on the DNA sequence. Once the RNA is finished synthesizing, it will exit into the cytoplasm and the RNA polymerase will uncouple from the DNA allowing it to close again.

Therefore, the order would be as follows:

DNA unzips

RNA polymerase adds nucleotides

RNA is fully synthetized

DNA reattaches together

This is an example of exponential growth.

Exponential growth refers to a pattern of growth where the quantity or size of something increases at an accelerating rate over time.

In the given scenario, Brain has one son, two grandchildren, and three great-grandchildren.

Each generation is producing more offspring, resulting in a rapidly increasing number of descendants.

The progression from one generation to the next demonstrates exponential growth because each subsequent generation adds more individuals than the previous one.

As the generations continue, the number of descendants grows exponentially larger.

Exponential growth can be observed in various natural and human-made systems, such as population growth, compound interest, and the spread of infectious diseases.

In this case, the number of descendants in Brain's family tree follows an exponential pattern, as each new generation multiplies the number of offspring, leading to a significant growth rate.

Therefore, the example given aligns with the concept of exponential growth.

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Answer:

No

Explanation:

The chromosome will stay the same organism.

The organism would be same  in both homogenous and heterogenous chromosome . Therefore, switching the alleles won't change the organism if order is maintained.

The thread-like chromosomes that convey the genomic information from cell to cell are formed of protein and a single DNA molecule. Chromosomes are found in the nucleus of cells in both plants and animals, including humans.

An organism is said to be homozygous if it has identical genes on both chromosomes. It is referred to as heterozygous if the organism possesses two distinct alleles of the gene.

Therefore, if the alleles switched places but the order remains same then  organism will be same too in case of homologus as well as heterologus chromosome.

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The mother or infant's oxytocin release boosts the other's, strengthening their bond. The feedback loop promotes care and bonding between mother and offspring, which is vital to their survival.

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Answer:

carbon cycle

Explanation:

Answer:

CTAATGT

Explanation:

C to G

G to C

A to T

T to A

The most fundamental understanding of a gene or genome is its nucleotide sequence.Therefore, the complementing sequence would be  CTAATGT.

The order of the nucleotides composing the alleles within a DNA or RNA molecule is indicated by a series of bases denoted by a set of five different letters, which is known as a nucleic acid sequence. Sequences are often presented according to convention from the 5' end to the 3' end. The sense strand is used for DNA.

Complementary sequence refers to a sequence of bases in a nucleic acid that can create a double-stranded structure by matching base pairs. Adenine and thymine form a double bond, while guanine and cytosine form a triple bond. As a result, adenine and thymine and cytosine and guanine are complimentary base pairs. The DNA strand 5' ATCGAACGT 3' has a complimentary sequence of 3' TAGCTTGCA 5'.

Therefore, the nucleotide base sequence hat complements the section of DNA modeled above is CTAATGT.

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If grasshoppers are removed from the food chain, significant damage to the environment can occur. Being herbivores, grasshoppers can have an impact on the populations of the plants they eat, increasing the population of those plants. The availability of resources for other herbivores that rely on the same plants for survival may be affected as a result.

Grasshoppers are also an important source of food for many predators, such as birds, reptiles and mammals. If locusts are eliminated from the food chain, the number of these predators can decrease. The disappearance of these predators could lead to an imbalance in the populations of their prey, which could have further effects on the environment.

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Answer:

B

Explanation:

its normal for then to be there so why not just call them normal

Based on the information in the chart, light traveling through glass would have a speed slower than that of light in the air (option A), and light traveling through a vacuum would have a speed higher than that of light in the air (option B).

Based on the graph, the denser the medium is the slower the light moves. For example, light is much faster when traveling in the air than when traveling in oil. Due to this, the true statements are:

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Answer:

a population in Florida.

Explanation:

In the report, the biologist is describing a population in Florida. A population is a group of organisms of the same species that live in a particular area and can interbreed with one another. In this case, the rattlesnakes are a population of the same species that live in Florida and can reproduce together. The report includes statistics about the population's size, breeding rate, and characteristics, which are all typical of a population analysis. A community refers to all the different populations of species that coexist in a particular area, while a biome refers to a large geographic area with similar climate and vegetation. An organism refers to an individual living thing.

From the analysis of the 2 equations: X = 3/4 and Y = 5/4

The equations can be solved using subtracting one of the two equations from the other.

Let's label the two equations:

Y=3x-1 .................... equation 1

Y=2-X..................... equation 2

Equation 2 can be rearranged such that:

Y = -X+2

Subtracting equation 2 from 1:

Y=3x-1

Y = -X+2

0 = 4X -3

4X = 3

  X = 3/4

Substitute X = 3/4 into any of equations 1 or 2 to determine Y.

Y = 3(3/4) - 1

   = 9/4 - 1

    = 5/4

Hence X = 3/4 and Y = 5/4

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Darwin was a British Naturalist. He was described the theory of Evolution.

Evolution is a gradual changes in Organisms that is responsible for Variation.

According to Darwin theory evolution occurs by Natural selection.

Natural Selection means nature selects those organism to survive who was fit with their environment.

Therefore the Correct Answer is A. Acquired Traits are inherited.

Answer:

gestation period is the period of development during the carrying of the embryo or fetus inside viviparous animals

Answer:

Hypothesis B

Explanation:

You may already know this, a hypothesis is sort of a guess based on information you have already received. Later, you will prove the hypothesis. If you proved the hypothesis wrong, you will move to a new one.

erythromycin definition :

"medicine: an antibiotic used in the treatment of infections caused by Gram-positive bacteria. It is similar in its effects to penicillin."

Bacteria is most likely to produce medical substances

Sorry if this is incorrect, I am just 4th grade :(

But I work hard to study science :)

Answer:

11. Something killed 90 percent of the planet's species approximately 250 million years ago, near the end of the Permian epoch. In the seas, just about 5% of animal species survived.

12. water bears, also known as tardigrades, are tough organisms that can withstand high temperatures.

13. DNA is found in every cell of every living creature, practically every cell in a multicellular organism has all of the DNA it needs.

14.  Titan features a low-temperature version of Earth's water cycle, with liquid on the surface that evaporates, creates clouds, and then condenses to fall as rain—but the liquid is a mix of methane, ethane, and a trace of other hydrocarbons on Titan.

15.  The Earth could not even support life at first. The atmosphere was devoid of oxygen, and the Earth's surface was scorching hot. The Earth gradually transformed over millions of years, allowing plants and animals to begin to grow. The Earth was then further altered by living organisms.

Answer:

Balanced

Explanation:

The image below is balanced because the forces are oppositely directed and have equal magnitudes.

When forces are directed this way;

 Resultant = 5N  - 5N  = 0N

A resultant force of 0N shows a balanced body.

Answer: Because, as of now, there is no way to "create" a human without the "use" of a womb

Explanation:

Serial dilution is a simple process that involves repeated dilution of a stock solution to obtain solutions of different concentrations. This can be used to prepare a series of dilutions, each of which is one-tenth or one-third of the preceding concentration.

The following is an example of a serial dilution scheme to prepare 1/10, 1/30, and 1/90 dilutions of a disinfectant:Step 1: Obtain 3 sterile tubes labeled A, B, and C. Step 2: Transfer 1 mL of the disinfectant to tube .

A containing 9 mL of sterile water. This is the 1/10 dilution.Step 3: Transfer 3 mL of the 1/10 dilution to tube B containing 7 mL of sterile water. This is the 1/30 dilution. Step 4: Transfer 3 mL of the 1/30 dilution to tube C containing 7 mL of sterile water. This is the 1/90 dilution.

Therefore, 1/10, 1/30, and 1/90 dilutions of a disinfectant can be prepared using this serial dilution scheme.

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When the carbohydrate cellobiose is digested into two glucose monosaccharide sugars (by cellulase in certain fungal species), the resulting glucose monomers are properly defined as the products

The correct answer is option E.

When the carbohydrate cellobiose is digested into two glucose monosaccharide sugars by cellulase in certain fungal species, the resulting glucose monomers are properly defined as the products.

In a chemical reaction, reactants are the starting materials or substances that undergo a change, while products are the resulting substances formed after the reaction. In this case, cellobiose is the substrate, which is the molecule that undergoes the enzymatic reaction. Cellulase is the enzyme responsible for catalyzing the digestion of cellobiose into glucose monomers.

The enzyme cellulase acts as a catalyst in the reaction, facilitating the breakdown of cellobiose into glucose. Catalysts are substances that increase the rate of a chemical reaction without being consumed or permanently changed themselves. However, in the context of the given question, the glucose monomers produced are the final result or product of the enzymatic digestion process.

Therefore, in the digestion of cellobiose, the resulting glucose monomers are correctly identified as the products (option E).

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Answer:

Following are the responses to these question:

Explanation:

The heterokaryons were cells of diverse traditions or more nuclei. A heterokaryon cell with network cells (donor and receiver nuclei) sharing a common costly to treat is produced whenever a node containing GFP-tagged protein (donor cell) is merged to a cell non express the GFP-tagged proteins (recipient cell). Unless the intracellular scram nuclear exists, GFP must leave the GFP atoms, be shipped to the cytosol, and be exported to a nucleus with emission of GFP protein (recipient nucleus). It is obtaining nuclear has been beginning to release the GFP protein.

Unless the GFP protein doesn't display a nucleus costly to treat, this is not distributed across time in the metal target. By either sole dissemination through nuclear pores or receptor-mediated routes, protein yelling from nuclear to emotional exhaustion can occur. That GFP proteins are shown in a nucleus only suggests a path via a transmitter. For chloroplast, though, protein disperses via nuclear envelope. It is not the case. It should have nuclear foreign trade signals when ferrying between the nucleus and cytoplasm.

Cycloheximide is indeed a medicine that stops protein expression without elongating. For heterokaryon cells, it inhibits fresh protein synthesis. It makes visualization of a nanoparticle cell of only old pre-existing molecules (before cycloheximide diagnosis). That post GFP substance is a shuttling shielding substance that passes seen between the nucleus and the cytoplasm and the receiver nucleus. Whenever the levels of the shuttle were high, the GFP protein expression is shown both by the sender and receiver nucleus. The recipient nucleus will not be left without any schlepping protein. Thus, the donor nucleus can only be used.

Answer:

B. Hypocotyl

Explanation:

Answer:

A channel protein, a type of transport protein, acts like a pore in the membrane that lets water molecules or small ions through quickly. Water channel proteins (aquaporins) allow water to diffuse across the membrane at a very fast rate. Ion channel proteins allow ions to diffuse across the membrane.

Explanation:

Stem supports branches, leaves, flowers, and fruits. It transports water and minerals from the roots to the leaves and other parts of plants. It transports food from leaves to different parts of the plant. It holds the plant upright.Auxin has a role in phototropism, responding to light.

Auxin has a role in phototropism, responding to light. Auxin is produced by cells in the apical meristem. The direction of light is detected at the tip of the shoot by pigments called phototropins. Phototropins stimulated by the absorption of light regulate the transport of auxin. When a shoot is exposed to light from above, auxin efflux pumps are located at the base of the cells in the shoot apex.

Auxin is transported downwards from the meristem, and has an equal distribution in the cells below the meristem. The cells elongate and the shoot grows straight upwards, symmetric growth. When the shoot is exposed to light from one side, this causes auxin efflux pumps to change location inside the cell. They move to the side of the cell furthest away from the light. This causes auxin to be transported to the shady part of the root, generating a higher concentration of auxin on the shady side than on the side exposed to light. This causes more cells on the shady side to elongate and the shoot bends towards the light, asymmetric growth.

Homeostasis is the process by which internal environments of an organism are regulated.

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Answer:

because when sea level is up and sand level is down and predicted tw of them

Explanation:

It consists of two sides

Answer:

Explanation:

The water cycle disruptions have most affected wading birds by:The release of water dilutes food sources for their young.This is because wading birds depend on the natural flow of water to bring in fish and other small aquatic organisms which are a vital part of their diet. When the water cycle is disrupted by the canals and levees, the water flow changes, and the amount and timing of these organisms can be impacted, making it harder for wading birds to find food for their young. Therefore, option (a) is the correct answer.Option (b) is incorrect because longer-legged birds are not necessarily more adapted to survive in higher water levels.Option (c) is incorrect because water quality may not necessarily improve due to runoff.Option (d) is incorrect because reduced salinity may not be a direct cause of increased egg-laying.