Solid
Substance A has a melting point of 100°C.
Liquid Substance B has a freezing point of
110°C. For each substance, identify its state
of matter, and describe the motion of its
particles, when the substance is at 115°C.

Answer:

Explanation:

picture 1 = 3 point

picture 2 = squeze and bend

picture 3 = point 2

picture 4  = point 4

Chloroplasts produce energy through photosynthesis and oxygen-release processes, which sustain plant growth and crop yield. As such, chloroplasts are responsible for the biosynthesis of active compounds such as amino acids, phytohormones, nucleotides, vitamins, lipids, and secondary metabolites.

Animal cells do not have a cell wall, in contrast to those of plants and fungi. Animal cells are flexible as a result of the absence of cell walls. It enables them to adopt various forms so they can specialize to perform specific tasks.

Root hair cells (black arrow pointing at one of the root hair cells) are single tubular root cells. The main function of root hairs is the uptake of water and nutrients from the rhizosphere or soil.

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Mitochondria breaks down sugar molecules that supply energy to the cell

Explanation:

Process of breaking down of the sugar molecule in order to produce energy is known "cellular respiration". All this activity takes place in the mitochondria. It is also referred as the energy source of cell. It utilises the food to produce ATP, that produces energy.

Mitochondria has its own ribosomes and DNA. They can prepare their protein without being dependent upon the cell. Mitochondria multiplies through fission. Glucose is broken down to pyruvate in cell cytoplasm.This   pyruvate when enters into mitochondria is converted to water and carbon dioxide.

Answer:

Explanation:

The greater the forces of attraction the higher the boiling point or the greater the polarity the higher the boiling point. ... The other molecules are slightly polar and show the increase in boiling point with molecular weight which is normal. Instead, water boils at +100 C, which is very abnormal.

Hope this helps a little

The explanation of water’s polarity is related to its boiling point.

learn about polarity,

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Answer:

FALSE

Explanation:

Ionization energy is the minimum amount of energy required to discharge an electron from its orbital shell from an atom in ground electronic state. The closer the electron, that is to be discharged, is to the nucleus of the atom, the harder to remove it hence has high ionization energy. In addition, if the nucleus of the atoms has a higher mass and the electron is even closer, the higher the ionization energy.

Valves are found in veins but not in capillaries or arteries primarily due to differences in blood pressure and flow dynamics.

1. Veins experience lower blood pressure: Unlike arteries where blood is pumped directly from the heart at high pressure, veins carry blood back to the heart at lower pressure. This lower pressure can sometimes result in blood pooling, especially in the extremities where gravity works against the return flow of blood. Valves in veins prevent this pooling by ensuring that blood flows in one direction only, towards the heart, and prevents backflow.

2. Gravity and distance: Veins are often located further from the heart and may be working against gravity to return blood to the heart, especially in the lower extremities. Valves help facilitate this process by preventing blood from flowing backward due to gravity.

3. Capillaries and arteries have different functions: Capillaries are the site of exchange between blood and tissues, where nutrients, gases, and waste products are exchanged. They are very small in diameter and have thin walls optimized for this exchange. Arteries, on the other hand, carry oxygen-rich blood away from the heart to various parts of the body under high pressure. Valves are unnecessary in capillaries because blood flow is regulated by the contraction and relaxation of surrounding smooth muscle cells and the pulsatile flow generated by the heart.

Humans influence the cycling of matter in ecosystems mainly through deforestation and pollution. Deforestation disrupts the nutrient cycle, and pollution leads to global warming, shifting the balance of ecosystems.

Humans significantly influence the cycling of matter in ecosystems in several ways. One of the primary ways is through deforestation. When humans cut down forests, it disrupts the nutrient cycle, as trees play a crucial role in absorbing carbon dioxide and releasing oxygen into the atmosphere. Another way humans impact this cycle is through pollution. For example, when industries and vehicles release carbon dioxide and other harmful gases into the atmosphere, it impacts the cycling of matter by contributing to global warming, which can change the balance of ecosystems.

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Answer:

Explanation:

1: B

2: C

3: B

4: A?

Independent Variable is the variable being changed, whereas the dependent variable is the variable depending on change.

Answer:

1. b. Amount of plant hormones added

2. c. Average height

3. b. 6

4. a. Group 1

Explanation:

1. This is what is being changed. This variable doesn't rely on anything else.

2. This is what is being measured. This variable relies on the independent variable in order to get the information needed.

3. The first group is not part of the experimental group because there are no hormones added to the water, which means that the plant grows naturally. All other plant groups have hormones added to them, making the results experimental.

4. This is the group that no hormones are added to the water. This group is being compared to the other groups in the experiment.

Answer:

NUMBER ONE: a) a metal pan b)cover/blanket

Explanation:

a) it retains heat because when its heated, it heats fast, if cooled it cools fast

b) a blanket/cover actually contains heat thats how it gets you warm it traps the heat that enters it and keeps it heated.

A ceramic tile holds heat like water. If water didn't retain heat, the Earth's climate would be more extreme. Being close to the equator leads to more consistent sunlight hours, a La Niña can negatively impact wildlife and people may struggle with believing in global warming due to misinformation or political beliefs.

1. A common household item that shares the characteristic of retaining heat like water would be a stone or ceramic tile. These materials can retain heat for extended periods of time due to their high thermal mass similar to water. If you place them in the sun or heat them, they stay warm for a while even after removing the heat source.

2. If water did not hold heat, the climate of the earth would be very different. Because water retains heat, it helps to moderate the Earth's climate making it habitable. Without this property, we would experience temperature extremes as land does not hold heat as well as water.

3. Being near the equator would generally mean more consistent hours of daylight throughout the year compared to areas further away from the equator. This is because the Earth's tilt does not change the amount of sunlight received at the equator as drastically as it does in other areas.

4. A La Niña event, which is characterized by cooler sea surface temperatures in the Pacific, could certainly have an impact on wildlife. Changes in water temperatures can alter the habitats and food supplies of marine life. However, it's not always negative, as some species might benefit from these changes.

5. Some people may have a difficult time believing in global warming due to misinformation, political beliefs, or simply a lack of understanding about the scientific evidence supporting it.

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Answer:

Change it up a bit ;)

Explanation:

Qualitative - Taste --how of the cupcakes taste and texture by adding more eggs and Sight --the an color of the cupcakes by adding more eggs

Quantitative - How tall the cupcakes rose with more eggs by measuring them

Answer:

The correct answer would be-

Quantitative observation: these are the observation that based on the quantitative measure or numbers.

1) cupcakes are .25 to 05 centimeter taller in cupcakes with extra egg.

2) in both conditions got only 6 jumbo size cupcakes even in cupcakes with extra egg.

Qualitative observation: these observations are the observations that are based on the quality of the human senses' look, taste, smell, sound and other.

1) The cupcakes are darker in shade with extra egg in them than other cupcakes.

2) The cupcakes with extra eggs are also moist than the cupcakes with less egg.

The reduction in leaf size means less chlorophyll is available for photosynthesis, leading to slowed growth in the plant since it cannot produce energy as efficiently.

The plant grows more slowly because it has less chlorophyll to produce energy. Chlorophyll is crucial in photosynthesis, the process by which plants convert light energy into chemical energy. With the leaves trimmed too short and their size reduced, there is a smaller surface area for the chlorophyll to absorb sunlight and produce the necessary energy for growth.

Hence, the reduction in the rate of photosynthesis ultimately leads to slower growth of the plant. This is well-known among horticulturists and is a key principle in plant biology.

Answer:

DNA-binding proteins are proteins that have DNA-binding domains and thus have a specific or general affinity for single- or double-stranded DNA.[3][4][5] Sequence-specific DNA-binding proteins generally interact with the major groove of B-DNA, because it exposes more functional groups that identify a base pair. However, there are some known minor groove DNA-binding ligands such as netropsin,[6] distamycin, Hoechst 33258, pentamidine, DAPI and others.

Explanation:

here are some examples

DNA-binding proteins include transcription factors which modulate the process of transcription, various polymerizes, nucleases  which cleave DNA molecules, and histones which are involved in chromosome packaging and transcription in the cell nucleus. DNA-binding proteins can incorporate such domains as the zinc finger, the helix-turn-helix, and the leucine zipper (among many others) that facilitate binding to nucleic acid. There are also more unusual examples such as transcription activator like effectors. i hope this helped -w-

DNA protein binding occurs in the nucleus of a cell and involves transcription factors that bind to specific DNA sequences to regulate gene transcription. The translation of these genetic codes leads to protein synthesis, dictating the varied cell functions.

DNA protein binding typically occurs in the nucleus of a cell. It happens because proteins often play a role in gene regulation. These proteins, often referred to as transcription factors, bind to specific sequences in the DNA to regulate the transcription of genetic material to RNA, which eventually leads to protein synthesis.

For example, when a cell needs to produce a specific protein, a corresponding transcription factor binds to the DNA sequence, initiating the process of transcription. This process ultimately guides the assembly of a protein encoded by the DNA sequence.

Therefore, DNA protein binding is an essential step in translating the genetic instructions present in our DNA into the functioning proteins that carry out numerous roles within the cells.

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Answer:

C

Explanation:

When examining the trends in coastal position over a time frame, you perform shoreline change analysis. In most cases, coastal changes are very non-linear.A normal regression of the shoreline happens when there is supply of sediments where the base level is rising at the shoreline.Here the rate of sediment deposition is more than that at which the base level is rising at the shoreline.

The movement ofa shoreline seawards due to sedimentation at the coast is called regression.If this movement is due to sea-level fall like in our case in the question it is force regression.In option C, the sea level is falling.

Answer:

ummmm what

Explanation:

Answer:

c

Explanation:

its evolution

Answer:

There would be an increase in dead matter and a lack of nutrients in the soil.

Explanation:

Decomposers break down dead matter which introduce the nutrients back into the soil.

The correct answer is A. There would be an increase in dead matter and a lack of nutrients in the soil.

Explanation:

Decomposers such as mushrooms are organisms that break apart dead matter, this is the last step or final link in a food web because decomposers break apart any death organism including top predators and they return the nutrients taken by these to the soil, which is necessary for producers or plants to exists. Due to this, if decomposers were removed dead matter would increase as this would not be broken apart by decomposers; and there would be fewer nutrients returning to the soil which would affect producers such as plants.

Answer:

8

Explanation:

There are 3 sodium atoms, 1 phosphorus atom, & 4 oxygen atoms.

3+1+4=8 atoms in total

A molecule of Sodium Phosphate (Na3PO4) contains a total of 8 atoms: 3 from sodium, 4 from oxygen, and 1 from phosphorus.

The chemical formula Na3PO4 represents a molecule of Sodium Phosphate. In each molecule of Sodium Phosphate, there are 3 sodium (Na) atoms, 4 oxygen (O) atoms, and 1 phosphorus (P) atom, which gives us a total of 8 atoms.

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Every chemical reaction involves some transfer of energy as bonds between atoms are broken and new ones are formed. These processes require energy which can be observed in our daily lives when our bodies break down food to utilize energy for different functions.

In every chemical reaction, there is always some transfer of energy. This energy change takes place because in a chemical reaction, bonds between atoms in the reactants are broken and new bonds are formed in the products. Both these processes - breaking and forming of bonds - involve energy. For instance, when we eat food (which is a form of potential energy), our body breaks down the chemicals in food through metabolic reactions, releasing energy that is then used for various cellular processes. Therefore, the correct answer is option (d).

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Atoms are made up of three types of particles: protons, neutrons, and electrons. Protons are positive, neutrons are neutral, and electrons are negative.

Atoms, the basic units of matter, are composed of three primary types of subatomic particles. The first type are

protons

, which carry a positive electric charge. The second type are

neutrons

, which have no charge. Both protons and neutrons reside in a region within the center of the atom known as the nucleus. The third type are the

electrons

, which carry a negative charge and move around the nucleus. The equal number of protons and electrons in an atom keep the atom neutrally charged.

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Answer:

Hope this helps have an amazing day! :)

Explanation:

The chloroplast is located throughout the cytoplasm of the cells of plant leaves and other parts depending on the type of plant. Actually, you can see where in a plant the chloroplasts are because chloroplasts are what make the plant appear green.

Answer:

The chloroplast is located in the cytoplasm of the cell. Hence the location of chloroplast is throughout the cytoplasm.  

Explanation:

Cell is defined as the smallest unit of the body. It is also considered to be as building block of the body. It is present in plant as well as animal. There are many organisms that are considered to be as single-celled.

All the single celled organism are you known as prokaryotic animals and they are living on the earth for many years like thousands of years. Cytoplasm is a liquid substance which is present inside the cell. It covers all the part of the cell and all the organelles lives inside the cytoplasm.

Answer:

D

Explanation:

Humans are considered to have intrinsic dignity that can't be violated and is even protected by laws of human rights. Therefore, even when conducting experiments that will involve human subjected, it is expected by ethical standards of research are considered before being implemented. For example it is important that the experiment does not subject humans to any form of embarrassment, bodily harm, and psychological harm.

Answer:

its not D

Explanation:

wrong answer on gradpoint

The lack of rigidity in a body indicates death occurred less than a few hours ago or more than 48 hours ago, as these timeframes straddle the temporary condition of rigor mortis. Significant joint disarticulation suggests a more extended period post-death, during decomposition.

The assessment of the time since death based on the rigidity of a body involves an understanding of rigor mortis, which is a biological and medical concept. If a victim's body is not rigid, it suggests that the person has been dead for either a short period, generally less than a few hours during which rigor mortis has not set in, or a longer period typically more than 48 hours after death in which rigor mortis has passed and the body has returned to a more relaxed state. Significant joint disarticulation, as mentioned in some of the provided excerpts, occurs at an even later stage when the body has started to decompose and the connective tissues have broken down.

Final answer:

If the victim's body is not rigid, it could imply that the individual has been dead for either a very short period (less than 2 to 6 hours) or for an extended period (over 72 hours), as these time frames are relevant to the process of rigor mortis. Several factors, including environmental conditions and the individual's pre-mortem state, influence this timeline.

Explanation:

If a victim's body is not rigid, it suggests that rigor mortis has either not yet set in or has passed. Rigor mortis is a temporary state where the muscles of the deceased's body stiffen post-mortem. It typically begins within 2 to 6 hours after death and can last up to 72 hours. Once it subsides, the body returns to a state of laxity. Therefore, if a body is not rigid, the person could either have been deceased for a very short time, not exceeding a couple of hours or the body has been dead for more than 72 hours and rigor mortis has ended, leading to the loosening of the muscles.

Additional factors like ambient temperature, the physical condition of the victim prior to death, and other environmental conditions can also affect the rate at which rigor mortis sets in and dissipates. Likewise, the presence or absence of joint disarticulation, as noted in archaeological findings, may suggest a longer period between death and burial, allowing decomposition to begin. Signs like significant joint disarticulation indicate that these bodies had begun to decompose prior to burial, thus loosening the connective tissues and joints. However, determining an exact time of death is a complex process that often requires more information and context than simply the presence or lack of body rigidity.

Furthermore, anecdotal reports and historical records of post-mortem examinations can offer insights into the timing of death and burial practices. For instance, in the case described, the quick burial and subsequent exhumation of a beaten girl for examination by a coroner shows the historical urgency of burying the dead quickly and the implications this might have on the understanding of post-mortem changes.

Answer: D

Explanation:

A) - Makes no sense, so no

B) - Experiments in laboratories must be controlled, so no.

C) - A laboratory is a regulated environment, so no.

D) - Only D makes sense, as it is true.

Answer:

The answer is "D"

Explanation:

Answer:

While photosynthesis requires carbon dioxide and releases oxygen, cellular respiration requires oxygen and releases carbon dioxide. It is the released oxygen that is used by us and most other organisms for cellular respiration.

Answer:Ultrasound scans, or sonography mostly sonography

Explanation:

Ultrasound scans, or sonography, are safe because they use sound waves or echoes to make an image, instead of radiation. Ultrasound scans are used to evaluate fetal development

Answer: Ultrasound

Explanation:

The ultrasound is used to see the pictures of inner body. It is used for the pregnant lady to see growth and development of the embryo inside the body.

It uses sound waves which is more than 20 kilohertz in healthy adults. It is also known as sonography.

A small device known as transducer and gel is used to amplify the sound waves that strikes the organs or embryo and the reflected sound waves produces a picture.

Answer:

true░░░░░░░░░░░░░▄▄▄▄▄▄▄░░░░░░░░░░░░░░░░░░▄▀▀▀░░░░░░░▀▄░░░░░░░░░░░░░░▄▀░░░░░░░░░░░░▀▄░░░░░░░░░░░░▄▀░░░░░░░░░░▄▀▀▄▀▄░░░░░░░░░▄▀░░░░░░░░░░▄▀░░██▄▀▄░░░░░░░▄▀░░▄▀▀▀▄░░░░█░░░▀▀░█▀▄░░░░░░█░░█▄▄░░░█░░░▀▄░░░░░▐░█░░░░░▐▌░░█▀▀░░▄▀░░░░░▀▄▄▄▄▀░░█░░░░▐▌░░█░░░▄▀░░░░░░░░░░░░░░█░░░░▐▌░░░▀▀▀░░░░░░░░░░░░░░░░▐▌░░░▐▌░░░░░░░░░░░░░░░▄░░░░░░▐▌░░░▐▌░░░░░░░░░▄░░░░░█░░░░░░▐▌░░░░█░░░░░░░░░▀█▄░░▄█░░░░░░▐▌░░░░▐▌░░░░░░░░░░▀▀▀▀░░░░░░░▐▌░░░░░█░░░░░░░░░░░░░░░░░░░░░█░░░░░░▐▌▀▄░░░░░░░░░░░░░░░░░▐▌░░░░░░░█░░▀░░░░░░░░░░░░░░░░▀░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░

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Explanation:

Since it is a brain cell, it must be true

Answer:

Explained in the diagram below

Explanation:

-During anaerobic reproduction body makes use of the glucose in the body to produce energy

-Muscle cell deal with the pyruvate produced during anaerobic conditions  by converting it into Lactate i.e. Lactic acid.

The equation is:-

Pyruvate     +   NADH ---Lactate dehydrogenase---> Lactic acid + NAD+

(Glycolysis)  

-Lactic acid fermentation is used worldwide to produce foods like yoghurt, pickle etc.

Answer:

Hope this helps!! :)

Explanation:

In the tutorial, they have pictures that verifies this answer exactly! It's just written differently, but I promise it's the exact same thing! <3

Answer:

the answer is either synapsis or crossing over

Answer:

When the blood becomes too acidic, the kidneys remove excess H+ ions from the body and excrete them in the urine.

Explanation:

Google

Excess hydrogen ions from an acid added to the blood are handled by the body's buffer system to maintain a stable pH level. Bicarbonate ions react chemically with these ions, forming carbonic acid which breaks down into carbon dioxide and water that the body exhales.

When an acid is introduced into the blood, it increases the concentration of hydrogen ions. These ions can be harmful if their levels become too high. The body has a mechanism in place to handle excess hydrogen ions and maintain a stable pH level. This mechanism is part of what's known as the buffer system. The blood buffer system, mainly composed of bicarbonate ions and hemoglobin, helps maintain the blood pH around 7.4. The bicarbonate ion acts as a weak base and reacts chemically with the excess hydrogen ions, forming carbonic acid which eventually breaks down into carbon dioxide and water. The body then gets rid of the carbon dioxide when we exhale.

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