Which substance is carried to the muscles

Answer: Esophagus

Explanation: The Esophagus is part of the Digestive system and the rest are a part of the Respiratory system.

Answer:

B-Condon's based on a triplet code

Expl

The characteristic shared by all modern living systems among the options provided is DNA as the genetic material. Therefore option C is correct.

DNA (deoxyribonucleic acid) is a molecule that carries the genetic instructions for the development, functioning, and reproduction of all known living organisms. It is a long, double-stranded helix structure composed of nucleotides.

Thus, DNA as the genetic material is a fundamental characteristic shared by all known modern living systems.

It encodes the instructions necessary for the development and functioning of an organism, allowing for the transmission of genetic information from one generation to the next.

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Option Individuals evolve, not populations is not a primary understanding of the theory of evolution (option a).

The theory of evolution using natural selection refers to the passage of adaptive features across generations due to the differential survival and reproduction of the most adaptive organisms, which occur at the population level.

Therefore, with this data, we can see that the theory of evolution by means of natural selection is based o the evolution of populations instead of single organisms.

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Answer:

The oldest known vascular plants appeared in the middle Silurian period (439–409 million years ago); the oldest known bryophytes appeared later, in the Devonian (409–354 million years ago).

Explanation:

Answer: The oldest known vascular plants appeared in the middle Silurian period (439–409 million years ago); the oldest known bryophytes appeared later, in the Devonian (409–354 million years ago).

Explanation:

The environment needs to change in order for natural selection to occur.

Populations have some genetic variation.

Nature selects organisms with specific traits to survive and reproduce.

Natural selection is a cycle that occurs when traits that are advantageous to an organic entity's survival and reproduction are passed on to the offspring.

Genetic diversity in populations of organisms means that different individuals within a population might have a wide range of characteristics.

Nature chooses creatures with specific characteristics that are best suited to survive and thrive in the environment.

These organisms are more likely to pass on their beneficial traits to their offspring, leading to the gradual evolution of a population over time.

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Answer:

An animal's environment consists of many different things. The climate, the kinds of food plants that grow in it, other animals that may be predators or competitors- the animal must learn to adapt to each of these factors in order to survive.

Answer:

Double carbon-carbon bond.

Explanation:

This is composed of a covalent bond between two carbon atoms. This bond is made up of two electrons that is one electron each from the two atoms.

These atoms have the possibility of forming double bond in atoms like alkalies. These double bond have eight valance electron .

The double bonds which involve carbon are very stronger than the single bonds and they are also much shorter.

Since they are potentially more reactive they are electron rich in nature

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If not, I'm sorry I couldn't help :(

Answer:

It's C

Explanation:

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The fertilizers show a significant impact on the nitrogen cycle as the fertilizers kill off the important nitrogen fixing bacteria which are present in the soil. Thus, the correct option is C.

Nitrogen Cycle is a biogeochemical process through which the nitrogen present in the environment is converted into many different forms, consecutively passing from the atmosphere to the soil to the living organisms and back into the atmosphere after decomposition. It involves several processes including the nitrogen fixation, nitrification, denitrification, decay and putrefaction of the nitrogen compounds.

Intensive fertilization of the agricultural soils of normal soil can increase the rates at which nitrogen in the form of ammonia is volatilized in the environment and lost to the air. It can also speed the microbial breakdown of ammonium and nitrates in the soil which results into enhancing the release of nitrous oxide. In addition to this, excessive use of fertilizers also kills the nitrogen fixing bacteria present in the soil.

Therefore, the correct option is C.

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This is a problem in the field of ecology.

The problem of quagga mussels in the lake is an ecological issue that requires scientific assessment and management.

It falls under the discipline of ecology, which studies the relationships between organisms and their environment.

Ecologists investigate the impacts of invasive species on the ecosystem and devise strategies to control their spread and minimize their effects.

In this case, scientists will need to examine the size of the quagga mussel population, their distribution, and their ecological interactions with native species.

They will also need to recommend measures to prevent further introduction of quagga mussels and to manage their population growth, such as using chemical treatments or biological controls.

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Answer: Here is the option.

A. The inducer combines with the repressor and causes the repressor to bind to DNA

B. The inducer combines with the repressor and causes the repressor to dissociate DNA

C. The inducer combines with the substrate and blocks induction

D. The inducer combines with the substrate and activates induction

E. The inducer does not combine with repressor but functions as a chaperone molecule for the enzyme-substrate complex

The correct option is C.

The inducer combines with the substrate and blocks induction

Explanation:

Enzymes inducers are drugs or enzymes that Induces or bring out the activity of enzymes been expressed.

This drug increases the metabolic activity of an enzyme either it binded to the enzymes or in a away cause an increase gene code of an enzyme to be expressed.

When an inducer is added to a medium containing an organism with metabolic pathway controller by a repressor it will combine with the repressor and block induction because an enzyme repressor regulate enzyme activity in a negative way by reducing it's synthesis rate.

Answer:

It doesn't name the phases of mitosis, but leads us to believe they are shown.

A limitation of a pictorial-only model of mitosis that shows detailed images of the different phases of the mitotic process is that: A. It does not name the different phases of mitosis.

Mitosis refers to a type of cell division or duplication that takes place in all body cells present in living organisms, through which a single parent cell produces two (2) genetically identical daughter cells.

Basically, there are five (5) main phases that takes place during mitosis and these are:

A pictorial-only model can be used to show or illustrate the various phases associated with mitosis.

However, a limitation of a pictorial-only model of mitosis that shows detailed images of the different phases of the mitotic process is that It doesn't provide the name of the different mitotic phases.

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Answer:

01.Which of the following is the largest object? *

The Earth?

The milky way galaxy

02.Which of the following is the smallest object?

The Solar system.

03. The Milky Way Galaxy is smaller than the Solar System.

false

04.Our solar system includes all of the following EXCEPT

a black hole

06.moving away from us.

07.compressed as the galaxies move away from us

08.shrinking

09.Cosmic Microwave Background

Answer:

1. Milky Way Galaxy

2. The Moon

3. False

4. A black hole

6. Moving away from us

Stretched as galaxies move away from us

8. Expanding

9. Cosmic Microwave Background

Explanation:

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A. Phyletic gradualism isn't supported by the fossil record, but punctuated equilibrium is

Punctuated equilibrium and phyletic gradualism are two opposing evolutionary tendencies that can be seen in the geological record. Species in punctuated equilibrium tend to demonstrate morphological stasis between rapid speciation episodes, whereas species in phyletic gradualism change more frequently. "Phyletic gradualism isn't supported by the fossil record, but punctuated equilibrium is," says the statement that best summarizes the ideas of phyletic gradualism and punctuated equilibrium.

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The cell membrane's inside is hydrophobic, meaning that water won't cling to it. In order to effectively separate fluid inside the cell from fluid outside the cell, phospholipids form a two-layer cell membrane.

Large hydrophilic polar or ionic molecules find it difficult to pass through the phospholipid bilayer. The cell membrane prevents the passage of any size charged atoms or molecules.

While the tails (the lipid component) are non-polar, the heads (the phospho part) are polar. The tails, which face the inside of the cell membrane, are "hydrophobic" (fearful of water), whereas the heads, which make up the exterior and inner linings, are "hydrophilic" (lovers of water).

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The population density of the 900 sheep in the given plot of land is 150 sheep per square kilometer.

The population density of 900 sheep in a plot of land that is 3.00 km by 2.00 km can be calculated by dividing the total number of sheep by the area of the land.

First, we need to calculate the area of the land. The area can be found by multiplying the length and width of the plot of land:

Area = length × width = 3.00 km × 2.00 km = 6.00 km²

Next, we divide the total number of sheep by the area to calculate the population density:

Population Density = Total number of sheep / Area = 900 sheep / 6.00 km²

Performing the calculation, we find:

Population Density = 150 sheep/km²

Therefore, the population density of the 900 sheep in the given plot of land is 150 sheep per square kilometer.

Population density is a measure of the number of individuals (in this case, sheep) per unit area. By dividing the total number of sheep by the area of the land, we obtain the population density in terms of sheep per square kilometer. In this case, the population density is 150 sheep/km², indicating that there are, on average, 150 sheep within each square kilometer of the land.

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Answer:

true

Explanation:

Answer:

The answer is false

Explanation:

Answer:

hormones; ghrelin; leptin.

Explanation:

Genetics can be defined as the scientific study of hereditary in living organisms such as humans, animals and plants.

Heredity refers to the transfer of traits (specific physical characteristics) from the parent of a living organism to her offspring through sexual reproduction or asexual production. Some examples of hereditary traits are dimples, tongue rolling, baldness, handedness, freckles, curly hair, color blindness, height, etc.

A gene can be defined as the complete set of hereditary instructions that is typically found in the deoxyribonucleic acid (DNA).

Over the years, scientists have discovered several genes that are known to contribute to human fatness (body weight), especially genes that are saddled with the responsibility of regulating the production of specific hormones, such as ghrelin, which stimulates hunger, and leptin, which reduces hunger.

Answer:

A smaller cell has fewer organelles dependent upon nutrient uptake and will acquire them more quickly.

Explanation:

the larger the cell the more distance matter must travel within the cell. if the cell was larger there would be a waste of space in the cell and it would take longer for proteins and enzymes to travel about the cell.

A scientific theory are:

A scientific hypothesis are:

Both are scientific theory and scientific hypothesis are:

Scientists are known to be people who often test hypotheses and also  theories. They are said to give scientific explanations for what we see in the natural world.

A hypothesis is known to be seen as a form of an idea or a given proposition that is said to be be tested by a lot of observations or experiments.

A theory is known to be a kind of well thought-out explanation in regards to  what is seen of the natural world.

Hence, A scientific theory are well-established, highly reliable explanation. A scientific hypothesis are based on observations of natural phenomena and Both are scientific theory and scientific hypothesis can be tested by many independent researchers

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Answer:

Based on the graph, we can draw the following conclusions:

The graph compares the fur color of wolves that live in a forested habitat (black bars) and those that live in a tundra habitat (gray bars). The forested habitat wolves have mainly gray and black fur, while the tundra habitat wolves have mainly white fur.

This suggests that wolves that live in different habitats have adapted to blend in with their surroundings to help them hunt or avoid predators. The wolves in the forested habitat are better camouflaged with darker fur, while those in the tundra habitat are better camouflaged with lighter fur.

The difference in fur color provides an advantage for wolves because it helps them survive in their respective environments. Wolves with better camouflage are less likely to be seen by their prey or predators, making it easier for them to hunt or avoid danger.

In summary, the graph shows that wolves that live in different habitats have adapted to their surroundings by changing their fur color, which provides them with an advantage for survival in their environments.

Explanation:

Answer:

Explanation:

vPoint Source - a source of water discharged to surface water through a discrete point - generally through a pipe, ditch, or channel.

Nonpoint Source - Nonpoint sources, such as parking lots or athletic fields, discharge runoff water to groundwater or surface water; runoff does not come from  a pipe, ditch, or channel. These sources may contain pollutants such as pesticides, motor oil, and soaps.

Navigable Waters of the United States  For the purposes of the Clean Water Act, the term "navigable waters" includes:

all waters used in commerce, including groundwater;

all interstate waters including wetlands, mudflats, and sand-flats; and

all other waters such as lakes, rivers, streams, wetlands and sloughs.

EPA policy states, "The majority of facilities in the U.S. have the potential to discharge to navigable waters."  The Supreme Court decision in (2006) requires the Army Corps of Engineers and the EPA to determine whether there is a "significant nexus" between a navigable waterway and an area a spill might affect.  In June of 2007, EPA and the Army Corps of Engineers released provisional interpretive guidance regarding the "significant nexus” question. According to this guidance, the agencies will assert jurisdiction over traditional navigable waters, wetlands adjacent thereto, and relatively permanent tributaries thereof. The agencies will generally not assert jurisdiction over swales and ditches that lack routine water flow. Finally, the agencies will apply the "significant nexus" requirement and make a case-by-case, fact-specific analysis on impermanent tributaries and other wetlands.

Additional executive orders were issued 2015 in 2019.  Under the 2019 proposal, traditional navigable waters, tributaries to those waters, certain ditches, certain lakes and ponds, impoundments of jurisdictional waters, and wetlands adjacent to jurisdictional waters would be federally regulated. It also details what are not "waters of the United States," such as features that only contain water during or in response to rainfall (e.g., ephemeral features); groundwater; many ditches, including most roadside or farm ditches; prior converted cropland; stormwater control features; and waste treatment systems.

Could the requirement for one or more NPDES Discharge Permit apply to my campus?

If your campus discharges pollutants directly to navigable waters of the United States through a point source, you must obtain an NPDES permit or redirect the flow of the waste.

Stormwater releases from certain activities require an NPDES permit. The most common activities on college campuses requiring NPDES permits for stormwater are construction activities disturbing more than 1 acre, hazardous waste storage areas operating under the Resource Conservation and Recovery Act permit system, steam-generating power plants, and airports. See Stormwater section below.

Regulations issued by local water authorities, or Publicly Owned Treatment Works (POTWs), not NPDES permits, govern discharges into sanitary sewer systems. See Sewer Use (POTW) section below for more information about requirements for using POTWs for commercial or industrial waste disposal.

What do I have to do related to NPDES Discharge Permits?

Determine where wastewater flows from buildings and processes on your campus. Any industrial or commercial operation (e.g., ice rink melt pits, floor drains, and vehicle wash stations) that discharge into a water of the United States may require an NPDES permit. If required, you must obtain such a permit from the appropriate regulatory agency, probably your state environmental agency.

French drains, dry wells, and septic system leach fields are different from point source discharges because they do not immediately affect surface water. Some state and federal environmental agencies manage these systems under the Underground Injection Control program, part of the Safe Drinking Water Act. See Safe Drinking Water Act for more information.

Details of NPDES

Ecosystem is a geographical area where biotic and abiotic components interact with each other.

Ecosystem:- all orca whales, fish, seaweed, islands, and the Pacific Ocean

Population:- all orca whales, fish, and seaweed living in one area

Community:-a group of orca whales living along the Gulf of Alaska

Organism:-a single orca whale

Species:-all orca whales in the world

These are the living components of ecosystem like plants and animals.

These are the non living components of ecosystem like air, water, soil etc.

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Answer:

ECOSYSTEM- all orca whales, fish, seaweed, islands and the pacific ocean

ORGANISM- a single whale orca

COMMUNITY- all orca whales, fish, and seaweed living in one area

POPULATION- a group of orca whales living along the gulf of Alaska

SPECIES- all orcas in the world

Explanation:

Answer:

Consult a doctor, nurse or a qualified health professional.

Explanation:

Doctors and Nurses are professionals in this field. From the options listed they are the only people who could give you valid information on your health. Getting your information from other sources could lead you to being misinformed, and that could have detrimental effects.

The organ with the germ layer is formed Ectoderm, Mesoderm, and Endoderm.

Matching organs with the germ layer from which they are formed:

1. Ectoderm:

Skin (including the epidermis and nervous system): The ectoderm is the outermost germ layer and gives rise to the epidermis, which is the outer layer of the skin. It also gives rise to the nervous system, including the brain, spinal cord, and peripheral nerves. The ectoderm is responsible for the formation of structures such as hair, nails, sweat glands, tooth enamel, the lens of the eye, and the inner ear.

2. Mesoderm:

3. Endoderm:

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Answer:

A

Explanation:

Water will enter and leave the cells at the same rate via osmosis

The correct option is (A) Beaker 1 in which water will enter the cells at a greater rate, causing an increase in mass for the sweet potato cells.

Osmosis refers to a process in which the water or solvent diffuse across a semipermeable membrane (here cell membrane) from the area of high solute (here glucose) concentration to low solute concentration. The concentration of glucose in the water of beaker 1 is 1.5M which is highest as compared to other beakers.

The concentration of glucose solution in beaker 1 is hypertonic to the concentration of glucose in the cell which makes the water to move inside the cell via osmosis. Movement of water inside the cell results in increase in mass for the (sweet potato) cells.

Thus, the water will enter the cells at a greater rate in the beaker 1 because the glucose concentration is highest in the beaker 1 corresponding to its cell glucose concentration.

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