The domain __________________________________ is made up of prokaryotes that usually have a cell wall and the at usually reproduce by cell division.

Answer:

graphite

Explanation:

graphite is a mineral resource used to make batteries

Graphite is the mineral that is frequently utilized to create batteries. So, the correct option is A.

A crystalline form of carbon that is found in nature is called graphite. Due to its special qualities, this mineral, which is exceptionally smooth and slippery, is frequently employed in a variety of applications. Due of its propensity to create a trace on paper, graphite is one of the materials that is most frequently found in pencils.

In addition to being used in pencils, graphite is also employed in lubricants, nuclear reactor moderators, batteries, and other electrical devices as electrodes. It is a good heat- and electricity-conductor and is generally chemically stable. Graphite is frequently obtained either open pit mines or underground mines and is typically found in metamorphic rocks.

Therefore, the correct option is A.

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Your question is incomplete, most probably the complete question is:

Which mineral resource is used to make batteries?

If a white powder is found next to a deceased victim at a crime scene, the first test is the A. Marquis test to check for fentanyl

Fentanyl is a potent synthetic opioid that has been involved in numerous cases of drug overdoses and illicit use. The Marquis test is a common presumptive test used to detect the presence of opioids, including fentanyl. It involves adding a few drops of the Marquis reagent, which typically contains formaldehyde and sulfuric acid, to a small sample of the white powder. If fentanyl is present, it will produce a characteristic color change or reaction.

Given the potentially lethal nature of fentanyl and its widespread illicit use, it is crucial to identify its presence early on to ensure the safety of the investigators and to guide further investigation. If the initial Marquis test indicates the presence of fentanyl, additional confirmatory tests can be performed to validate the findings and gather more detailed information about the substance.

It is important for forensic scientists to exercise caution and follow proper safety protocols when dealing with unknown substances, particularly those that may pose significant health risks. Therefore, Option A is correct.

The question was incomplete. find the full content below:

If you were a forensic scientist at a crime scene and a white powder was found next to a deceased victim, what test would you conduct first?

A. Marquis test to check for fentanyl

B. Marquis test to check for arsenic

C. Marsh test to check for cocaine

D. Scott's test to check for fentanyl

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Answer:

option C is correct... the third one

Answer:

Explanation:

b

I am pretty sure its B

Explanation:

Source: Trust

Answer:

13) B) Ethics of using information from genomes at the individual level

14) A) a plasmid

15) C) 1983

~

Hope this helps!

The presence of coral fossils in North America suggests that the location of North America was quite different from what it is today, about 370 million years ago.

At that time, North America was part of the ancient supercontinent Pangea, and its location was closer to the equator.

The fact that coral fossils have been found in North America indicates that the climate and water conditions in the area were suitable for the growth of coral reefs. Coral reefs are typically found in warm, shallow, and nutrient-rich waters, so the presence of these fossils suggests that the region was once covered by a warm and shallow sea.

This is consistent with the geological evidence that shows that North America was once part of a large shallow ocean that covered much of the equatorial region of Pangea. Over millions of years, tectonic movements and plate collisions caused the land masses to shift and eventually break apart, leading to the formation of the continents we see today.

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Omnivores are organisms that feed on several prey items. In the exposed example, C is the omnivore and feeds on A, D, and B.

Omnivore organisms are those who can feed on any kind of items, going from vegetable species to different animal species. In this last case, depending on the species, the diet might include invertebrate and vertebrates.

In the exposed example we can see that

C is the omnivore organisms in this web since it feeds on autotroph (A), herbivores (D) and carnivores (B).

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The two pieces of evidence that support the theory of the expanding universe are the red shift of light from distant stars and the existence of cosmic background radiation.

The correct answer is option B.

1. Red shift of light from distant stars: The observation of redshift in the light coming from distant galaxies provides evidence for the expansion of the universe. Redshift occurs when the light waves from an object moving away from an observer are stretched, causing a shift towards longer wavelengths. This phenomenon is consistent with the Doppler effect, where the wavelength of light appears to stretch as the source moves away. The redshift of light from distant stars indicates that galaxies are moving away from us and from each other, supporting the idea that the universe is expanding.

2. Existence of cosmic background radiation: The discovery of cosmic background radiation further supports the theory of the expanding universe. Cosmic background radiation is a faint, uniform microwave radiation that permeates the entire universe. It is believed to be residual radiation from the Big Bang, the initial event that is thought to have initiated the expansion of the universe. The presence of cosmic background radiation provides strong evidence for the hot, dense early stages of the universe and its subsequent expansion.

Based on the information provided in the diagram, it is not possible to determine the identity or nature of the celestial objects labeled X. The diagram only represents the expansion of the universe over time and does not provide specific details about individual celestial objects.

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Answer:

the cell membrane is selectively permeable

Explanation:

hope that helped

The statement that is the cell membrane is selectively permeable is the statement, which describes the tendency of the cell membrane to permit various substances to move through it.  

• The cell membrane comprises a phospholipid bilayer with proteins embedded in it. These proteins perform a number of functions, and the most important function it performs is that they regulate what moves out and what moves in the cell.  

• The membrane is selectively permeable as the substances do not pass through it indiscriminately.  

• Some of the molecules like oxygen and hydrocarbons can pass through it, while some of the large molecules like glucose and sugars cannot pass through it.  

Thus, the cell membrane is selectively permeable.

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Answer:

by diluting the DCIP dye stock solution 1000 times. It can be done by diluting 0.1 ml of the DCIP dye stock solution with 99.9 ml of distilled water

Explanation:

1 millimolar (mM) = 0.001 M

1.0 × 10⁻⁴  Molar (M) = 0.0001 M = 0.1 mM

Stock solution = 100 mM = 0.1 M

100 mM DCIP dye solution diluited 1000 times  >> 0.1 mM = 1 x 10⁻⁴ M

Answer:

Unknown

Explanation:

What are your answer choices?  There could be many different types of cells that are 20 um across.

An experiment to show that plants get energy from air soil and water is to place pants into different types of air soil and water conditions and observe the outcomes of these independent variables on the plant growth, which in this case would represent the dependent variable to be measured.

An experimental science procedure is any class of process used to test a hypothesis during a scientific investigation, which involves collecting data to accept or reject this plausible explanation.

An experimental science procedure is based on different types of variables that remain unchanged (independent) and those dependent variables that are modified along with the experiment.

Therefore, with this data, we can see that an experimental science procedure is based on the placement of the subject of an investigation under different conditions in order to collect data and make assumptions about the outcomes.

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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.

Answer:

The leafhoppers eat plant tissues and, at the same time, they are eaten by spiders that are the food of large lizards. Finally, these lizards are the food of birds that are eaten by snakes.

Explanation:

The food chain starts with primary producers such as plants and algae (i.e., level 1), then goes through herbivorous species including insects and fish (level 2) and finally ends with carnivores such as rodents, snakes and hedgehogs (levels 3, 4 and sometimes 5, which depends on presence of larger predators). Thus, the trophic levels are represented by the number of steps of the food chain. In an ecosystem, the organisms can also be classified according to the mode of obtaining the food in producers (autotrophs), consumers (heterotrophs) and reducers (detritivores).

Answer:

The gene for having a tall stature is a recessive trait. So the man can have only as genotype "aa". The short woman can have instead as genotype either Aa or AA. in the first case, we have both tall and short children while in the second case only short children.

So the answer is A) All the progeny may be tall.

Answer:

Explanation:

The production of antibiotics and odours may have evolved as a result of natural selection. Bacteria and other microorganisms have to compete with each other for resources, and the production of antibiotics and odours may be a way for them to gain an advantage over their competitors. For example, some bacteria produce antibiotics that kill other bacteria in their vicinity, thus reducing competition for resources. Similarly, some bacteria produce odours that attract pollinators or other organisms that may help them in some way. Over time, the ability to produce these chemicals may have become more prevalent in certain populations, as those that could produce them had an advantage in the competition for resources.

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Answer:

The correct answer is "DnaB propels the PhiX174 phage leading strand synthesis replication fork".

Explanation:

The PhiX174 phage is a DNA virus that infects Escherichia coli. It is false that DnaB propels the PhiX174 phage leading strand synthesis replication fork when the phage replicates. Actually, PhiX174 phage uses the replication machinery of their host to replicate. If the phage faces DNA damage for instance by exposure to UV light, the replication fork overcomes its arrest by the use of the primosome and Rep helicase.

A mass extinction event is when over 75% of species die out in a relatively short period of time. Therefore, the correct answer is: D. 75%

Earth's biodiversity declines rapidly and widely during an extinction event. A significant shift in the variety and abundance of multicellular organisms indicates such an event. It occurs when both the rate of speciation and the rate of extinction outpace the background rate.

A short period of geological time known as a mass extinction occurs when a significant portion of biodiversity, or distinct species—such as bacteria, fungi, plants, mammals, birds, reptiles, amphibians, fish, and invertebrates—die.

Impacts from comets and asteroid, widespread volcanism, climatic changes, rapid shifts in geography and ocean currents, or a combination of these can all lead to mass extinctions. The extinction of a single species is a characteristic of the flora and fauna of Earth.

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Answer:

Cork formation is a type of secondary growth that occurs in the stems and roots of woody plants. Gum formation, on the other hand, is a type of defense mechanism that occurs in response to injury or infection.

Explanation:

The gray matter is located in the brain. It is found in the outermost layer of the brain. It is surrounding the cerebrum and is called as cortex of the brain. The white matter is located in the further tissues of the brain or the subcortical. It is found underneath the gray matter. These are all located in the cerebral cortex.

The gray matter facilitates the control movement, memory, and emotions of an individual. The white matter is for learning and brain functions.

Answer:

Gray matter is home to neural cells, axon terminals, dendrites and nerve synapses. It is commonly found in the cerebellum, cerebrum, and brain stem. It gets its name due to its gray color.

White matter is located in the deeper tissues of the brain, and contains nerve fibres, and extensions of nerve cells. A substance called myelin gives white matter its white color.

Answer:

Weathering and erosion break down the igneous rock into pebbles, sand, and mud, creating sediment, which accumulates in basins on the Earth's surface.

Explanation:

Answer: which subject is this in??

Explanation:

Answer:

In meiosis end up with 23 chromosomes.

Explanation:

This is because in meiosis the chromosomes split apart.

Answer:

fire

Explanation:

Answer:

The chance that the couple's first child will have cystic fibrosis = 1/100

Explanation:

Since both parents are phenotypically normal, it means that they are both heterozygous for cystic fibrosis.

The probability of a cross of two heterezygotes for a recessive allele to produce an offspring having two recessive alleles is 1 : 4 in accordance with Mendelian inheritance.

The initial probability of the couple's first child to be have two allelic pairs for cystic fibrosis = 1 : 4.

However, the frequency in the general population of heterozygotes for cystic fibrosis is 1 in 25.

Therefore, the chance that the couple's first child will have cystic fibrosis = 1/4 * 1/25 = 1/100

Answer: 17. epiglotti. 18. Salt. 19. 37 degrees celsius.  brainliest??

Explanation:

The planet of our solar system that is the farthest from the Sun is Neptune (2.8 billion miles of distance from the Sun), but there are still dwarf planets further out, notably Pluto that was demoted to dwarf planet in 2006. The Neptune atmosphere is composed mostly by hydrogen, and smaller amounts of helium and methane, making a blue coloration of the planet (methane absorption of red light cause this effect), the planet has -373 F° as the average temperature, therefore Neptune has a thick, windy atmosphere.

Answer: Epididymis

Explanation: The sperms are stored in the spiral structure of the epididymis for maturation and then released.

Sperm cells mature in the structure called the seminiferous tubules within the testes. After developing in these tubules, the sperm move to the epididymis where they continue to mature and then during ejaculation, they exit the body via the vas deferens. This highlights the different stages of sperm development and maturity in the male reproductive system.

Sperm cells develop to maturity in a structure called the seminiferous tubules, which are coiled inside the testes. The least developed sperm are located at the periphery of the tubule, while the fully developed sperm are in the lumen. Within the walls of these tubules, the sperm cells are mixed with Sertoli cells, also referred to as 'nursemaid cells', which protect the germ cells and support their development.

Once the sperm cells have developed, they exit the seminiferous tubules and move to the epididymis where they continue their maturation process. The epididymis is a coiled tube located on the top and posterior of the testes. Upon ejaculation, the mature sperm leave the epididymis, travel through the vas deferens, and form the ejaculatory duct.

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Answer: difficulties digesting!

Explanation:

Answer:

Trees improve water quality by slowing rain as it falls to the Earth, and helping it soak into the soil. They also prevent soil from eroding into our waterways, reduce storm water runoff, and lessen flood damage. They serve as natural filters to protect our streams, rivers and lakes.