The statement that is correct is that; Portland is not a mineral because minerals are not man-made. Option C
What is the Portland cement?We can see that the Portland cement is the product of a kind of a chemicals reaction. In this reaction, there is the combination of the water and the limestone and the mixing is what does produce the Portland cement.
We know that Portland cement is the most common type of cement used in the world. It is made of limestone and other material. It was first developed in 1756 by John Smeaton Portland.
The development of the Portland cement was a mile stone in the rea of the building and the construction industry as we know it today in the whole world. The production of the cement makes it to be hard and then able to survive harsh conditions in usage.
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Missing parts;
Use the definition of minerals to choose the correct statement about Portland cement.
Portland cement is the most common type of cement used in the world. It is made of limestone and other material. It was first developed in 1756 by John Smeaton. Portland cement is made through a process of heating and grinding. It sets and hardens when mixed with water.
A
Portland cement is a mineral because all minerals are made of limestone.
B
Portland cement is a mineral because all minerals harden when mixed with water.
C
Portland is not a mineral because minerals are not man-made.
D
Portland cement is not a mineral because minerals aren’t used in daily life.
why the concentration of nitrate ion in the soil had decreased after the farmer grew maize plants in the field?
Answer:
because the maize plant will take in the nitrate and use it to make proteins for growth.
The concentration of nitrate ion (nitrogen) in the soil decreases after the farmer plants maize plants in the field because the maize plants have taken up these ions.
Does maize require nitrogen?To develop and produce, maize plants need a lot of nitrogen. 160 kg/ha of nitrogen are removed on average by maize crops.
What purpose does nitrogen serve in maize?Due to its function in photosynthesis and other biological activities like mineral and water absorption, vacuole storage, and xylem movement, nitrogen is a crucial nutrient for maize and a major regulator of grain output.
What type of fertilizer is ideal for maize?The growth, yield, and quality of maize crops are most strongly influenced by nitrogen.
Fertilizer with nitrogen is necessary for healthy leaf growth.
What happens if the leaves of maize are small?Less photosynthesis, which is necessary to store starch in grains, occurs as a result of smaller leaves.
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If an organism has a wide range of genetic variations, a large population, and
a wide range of geographiqhabitat choices, would the organism be less likely
or more likely to avoid extinction? Explain
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How did black Monday affect the direction of Wilkins career
Answer:
Bombing of Hiroshima
Explanation:
This made him want to study the science of life
1. When blood leaves the heart, where does it exit?
A the aorta
B
the capillaries
c the lungs
D
• the pulmonary vein
Answer:
A the aorta
it exits through the aorta to the rest of the body
Study the cladogram.
Which organism is most closely related to the fish?
lamprey
mouse
frog
shark
Answer:
Mouse and frog
Explanation:
Answer:
it is b mouse
Explanation:
i found the cladogram picture
Differentiate between stomata and lenticels
Answer:
Stomata are tiny pores found in the epidermis of the plant leaves and stems which involve in gas exchange of plants.
Lenticels are lens-shaped spots or present in the woody trunks or stems of the plants. They act as pores which involve mainly in direct gas exchange of plants betweem internal cells of the stem and the environment.
Need help I will give you 20 points plsss
Answer:
III3 will be "pp" lower case p
II2 will be Pp
Explanation:
As we know the trait is caused by dominant alleles. III3 is not affected so she will have two recessice alleles so 2 lower case p.
III2 is affected so the person will have one dominant allele P and one recessive. The dominant is from the father and the recessive is from the mother.
Hope that helps
Answer:
1. pp 2. Pp
Explanation:
1. Since it says the genetic disorder is caused by a dominant allele, that means that the ones affected (colored in) would have one "P" allele. Those not affected (not colored in) would display the genotype "pp." That would mean that generation III-3's genotype would be "pp."
2. The genotype of III-2 is "Pp." The dad was not affected (meaning he has 2 recessive alleles, pp) and the mom was affected (meaning she has at least 1 dominant allele, p; her genotype would either be PP or Pp). Because of this, III-2 would have to get one allele from the dad and one allele from the mom, therefore... their genotype would be: Pp.
The enzyme polyphenol oxidase and the substrate polyphenol can be extracted from crushed apples. The substrate turns brown when the enzyme is present. Some students were provided with extracts of the enzyme and the substrate. Describe a method the students could use to find the optimum temperature of the enzyme.
Answer:
Night insects have the most to fear from bats. Each night, bats can eat their body weight or more in insects, numbering in the thousands! And because bats eat so many insects -- which have exoskeletons made of a shiny material called chitin -- some bat poop sparkles (cool but weird fact, we know)! This insect-heavy diet helps foresters and farmers protect their crops from pests.
Explanation:
Drag the tiles to the correct boxes to complete the pairs.
Match the inheritance patterns with the scenarios that exemplify them.
codominance
multiple alleles
incomplete dominance
A pink roses are formed when red roses are mated with white roses.
Genes with the alleles IA, IB, and i are responsible
for expression of A, B, and O blood types.
A red flower and a white flower produce
an offspring with equal proportions of red
and white coloration.
In co-dominance alleles are equally expressed, while in incomplete dominance neither of the alleles are completelly expressed. Multiallelic genes are those that have more than two alleles as alternative forms. A) Incomplete dominance. B) Multiple alleles. C) Co-dominance.
What are codominance, incomplete dominance, and multiple alleles?
Codominance refers to a non-mendelian inheritance pattern in which two different alleles present in the same genotype are equally expressed.
There are no dominant or recessive alleles since non of them hides the expression of the other one in heterozygous individuals.
The phenotype of a heterozygote expresses two alternative phenotypic variants.
Incomplete dominance refers to another non-mendelian inheritance pattern in which heterozygous individuals express an intermediate phenotype between the dominant and the recessive phenotypes.
Neither of the involved alleles completely dominates over the other one.
Multiple alleles refer to genes that express more than two possible alleles. Let us remember that alleles are alternative forms of the same gene. So, multiallelic genes can have many alleles, and each of their codes for a different trait.
Pink roses are formed when red roses are mated with white roses ⇒ incomplete dominanceGenes with the alleles IA, IB, and i are responsible for expression of A, B, and O blood types ⇒ Multiple allelesA red flower and a white flower produce an offspring with equal proportions of red and white coloration ⇒ co-dominanceYou can learn more about co-dominance, incomplete dominance, and multiple alleles at
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Based on this model, which process is currently taking place and wh
at does the process create?
a. Replication; creating a single strand of RNA.
b. Translation; creating two new protein strands.
c. Transcription; creating a triple helix structure.
d. Replication; creating two complimentary strands of DNA.
d) Replication; creating two complimentary strands of DNA.
EXPLANATION:DNA replication is a process that occurs during cellular division where two identical molecules of DNA are created from a single molecule of DNA. As a semiconservative process, a single molecule containing two strands of DNA in double helix formation is separated, where each strand serves as a template for the new DNA molecules.
Because the double helix is anti-parallel and DNA polymerase only synthesizes new DNA from 5′-3′, the template strand reading 3′-5′ results in a continuous, leading strand, while the template strand reading 5′-3′ results in a discontinuous, lagging strand.
Being a highly regulated process, multiple proteins are required both during and following replication to quickly correct mistakes and damages.
Ecosystems have many different organisms all coexisting together. How are they all linked?
A. by whether they are predators or prey
B. by what they consumer for energy
C. by their species
D. by where they choose their habitats
Answer:
D
Explanation:
I did the test
goodluck
Choose one of the three light technologies (fiber optics, lasers, and holograms), discussed in this lesson, and research it. Write a one or two page report. You could include more details about how the technology works, a particular use for the technology, or how it was discovered.
Write one or two pages.
Click on the Rubric below to open the Light Technology Rubric.
A laser is a device that produces light using an optical amplification technique based on electromagnetic radiation's stimulated emission. "Light amplification by stimulated emission of radiation" is the abbreviation for the phrase "laser."
Lasers are one of the three light technologies.
What are light technologies?The equipment and methods used to produce and store light are referred to as lighting technology.
Some examples of light technologies are:
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A _____________ forms as a result of lava that has cooled at the top of a volcano.
a.
vent
b.
caldera
c.
pipe
d.
chamber
Please select the best answer from the choices provided
A
B
C
D
Answer:
B caldera forms as a result of lava that has cooled at the top of a volcano.
Explanation:
female gains in body fat starting around puberty can result in a cycle of diminished physical fitness. please select the best answer from the choices provided. True or False
Female gains in body fat starting around puberty can result in a cycle of diminished physical fitness.The answer is true.
Some moments in a woman's life are to be watched more closely. The first of them is puberty.
It is known that the onset of overweight in children and adolescents predisposes, with high probability, to the development of obesity in adulthood. We will strive to monitor more particularly young girls quickly pubescent (early puberty), who grow a little too much.
Anyway, to keep a nice silhouette, prefer exercise. Did you know, the parameter most correlated with the increase in the frequency of obesity in the United States is not the diet but the number of trips by car.
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What do you think plants will do next and why?
Answer:
die
Explanation:
because
if someone made a scale model, and they hade 1 cm for every 100,000 kilometers how many centimeters would 58 million kilometers be?
The statistic must typically be multiplied by a constant scale factor in order to be a reliable estimate of the scale parameter. This scale factor is defined as the theoretical value of the result of dividing the necessary scale parameter by the statistic's asymptotic value.
What are the parameter for scale model?A map's scale may be depicted graphically (a graphic scale), but it is typically expressed as a ratio or fraction, such as 1/10,000 or 1:10,000. With these “representative fraction” scales, one inch or one centimetre on the map corresponds to 10,000 of the same units on the ground.
Therefore, We are all aware that 1 centimetre is equivalent to 1/100000 kilometres. Hence, 1 cm = 0.00001 km As a result, multiply the number of cm by 0.00001 to convert from cm to km. In other words, multiply the cm value by 100,000 to get the km value.
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How many half lives would have passed if only 6.25% is still radioactive?
Answer:
It will take 4 half lives
Explanation:
Hope this helps
:)
a solution that has the same number of molecules as the cell is a ___ solution
Answer:
Isotonic
Explanation:
A solution is isotonic to a cell if it has the same Concentration of dissolved particles as the cell. Water molecules move in and out of the cell at equal rate, so the cell size remains the same.
During this stage of interphase, a cell prepares for cell division by making proteins and ATP it will use: *
The process of cell division is a complex process that requires the cell to prepare in many ways. During interphase, a cell prepares for cell division by synthesizing proteins and ATP, which it will use as energy sources during division.
Proteins are essential for division because they serve as structural components of the cell and are responsible for maintaining the cell’s shape. During interphase, the cell manufactures the proteins it needs for division. These can include cytoskeletal proteins, which give the cell structure and help it move, and enzymes, which help with chemical reactions. Without these proteins, the cell would not be able to divide correctly.
ATP is also essential for cell division. During interphase, the cell manufactures ATP, which it uses for energy during division. ATP is the energy currency of the cell and is used to power the metabolic processes required for cell division. It also helps the cell move and change shape during division, which is necessary for the process.
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what is a three dimensional structure that respresents the alternating pattern of particles in a crystal
A crystal lattice is a three-dimensional arrangement of particles that form a repeating pattern. It is the fundamental building block of all crystalline materials, including metals, minerals, and polymers.
The particles in a crystal lattice are arranged in an alternating pattern, with each particle connected to its nearest neighbors. This arrangement of particles creates a highly ordered structure, which gives crystals their unique properties, such as hardness, strength, and electrical conductivity. The repeating pattern of a lattice is what gives it its distinctive structure and allows it to be easily manipulated.
Depending on the size and shape of the particles, the lattice can take on many forms, from cubic to hexagonal. The arrangement of particles in a crystal lattice can also determine its physical and chemical properties. The structure of a crystal lattice is an important factor that must be considered when designing materials for specific applications.
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Plant selection is important for a rain garden. Which of the following best describes the types of plants that would be most effective to use in the rain garden in this experimental design to reduce the impact of urban runoff
Plants that are native to the local area and are well-suited to the soil and climate would be most effective to use in a rain garden to reduce the impact of urban runoff.
These plants have deep root systems that help to absorb and filter water, reducing the amount of runoff that enters local waterways. They also help to reduce erosion and improve water quality. Additionally, plants that are drought-tolerant and able to withstand periods of standing water would be beneficial, as rain gardens can hold water for extended periods. It is important to note that the choice of plants will depend on the local conditions and the experimental design of the rain garden, for example, the pH of the soil, the amount of sun exposure, and the size and location of the rain garden. An expert in the field of horticulture or hydrology would be best suited to make recommendations for plants that would be most effective in a given location.
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What will happen if the number of cells increase in a series circuit?
Increasing the number of cells increases the current in the circuit.
Connecting cells in series increases the voltage in the circuit by 1.5V per cell. Increasing the voltage will increase the brightness of the bulb. Unscrewing one bulb in a series circuit extinguishes all bulbs in the circuit. Increasing the number of incandescent lamps in a series circuit reduces the brightness of the incandescent lamps.
Increasing the number of cells increases the voltage (adding voltage to cells in series). A cell is a "power source". It converts stored chemical energy into potential energy, allowing positive charge to flow through an external circuit from positive to negative. This is known as current.
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what's the Nucleolus function
The production and assembly of the cell's ribosomes take place in the nucleolus, a spherical component of the cell's nucleus. Ribosomal RNA genes are also translated into the nucleolus.
What is a nucleolus?A lengthy ribosomal RNA (rRNA) precursor molecule is translated from DNA in the nucleolus, where it is converted into three mature RNAs.
Assembled with particular proteins to form the big and small ribosomal subunits.
A section of the nucleus is known as the nucleolus. It is not encircled by a membrane, unlike the nucleus.
Therefore, ribosomal RNA genes are also translated into the nucleolus.
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What is the ratio of white crossed with heterozygous purple?
The genotypes of the offspring born from the union of a heterozygous purple flower (Rr) and a recessive white flower (rr) are (Rr), (Rr), (rr), and (rr). Consequently, half of the progeny possess purple flowers (Rr), while half have white blooms (rr).
Because all of them are heterozygotes and purple is dominant above white in this situation, all the offspring from this cross would be purple (Pp). There is therefore no possibility of a child having white blooms. The F2 generation is composed of 50% Pp (heterozygous), 25% PP (homozygous dominant), and 50% Pp purple flowers (homozygous recessive, white flowers). In this way, the white characteristic is passed on to the next generation. The F1 generation, which solely possessed purple flowers, was created by cross-pollination using two parent (P) plants. from F1 self-pollination
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PLEASE HELP PLEASE PLEASE PLEASE PLEASE HELP PLEASE PLEASE PLEASE PLEASE HELP PLEASE PLEASE PLEASE
Answer: B
Explanation:
What processes could cause a metamorphic rock to return to the surface of Earth to be worn down again? Choose TWO that apply.
A. deposition
B. plate movement
C. chemical changes
D. wind or water erosion
Answer:
definitely d
Explanation:
this happens due to geological uplift and the erosion of The Rock and soil above them metaphorphic rocks will be exposed to weathering processes and may break down into settlement I was trying to answer this question earlier but then it wouldn't let me
The basic bilaterian body form plan can be thought of as simply ____.a. a series of boxes
b. several joined rings
c. many concentric circles
d. a tube within a tube
The basic bilaterian body form plan can be thought of as simply a tube within a tube.
The inner tube is the individual's intestine, with the mouth at one end and the anus at the other, while the outer tube forms the nervous system and skin.
The majority of animals have a body plan that may best be characterized as a tube within a tube. This plan provides two openings. One is the mouth through which food enters the body (the mouth) and the other is the mouth through which feces exit the body (the anus). A hose-in-hose plan allows for specialization of parts along the hose such as: Stomach, intestines, etc. The other body plan is a bag-like body plan with only one opening. They are 10% less effective
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Which three factors in an environment can lead to natural selection? A. Predation B. Competition C. Limited resources D. Abundant resources
Answer:
A. Predation
B. Competition
C. Limited Resources
Explanation:
ABC are negative factors so they can lead to natural selection. D is a positive factor that will not lead to natural selection.
This photograph shows a protion of the Monahans Sandhills in northwest Texas. Monahans Sandhills are noted for their sand dunes that can be up to 21 m (70 feet) high. The Monahans Sandhills are part of a semi-arid ecosystem that received 310 mm (21 inches) of rain on average per year.
Another picture of the same area taken weeks before shows that the shape and location of some sand dunes have changed. Which of these most likely caused the changes in the dunes?
A. mechanical weathering of rocks
B. wind erosion of sand particles
C. water deposition of pebbles
D. chemical weathering of the rocks
The most likely cause of the changes in the sand dunes in the Monahans Sandhills is wind erosion of sand particles, which is option B, as the sand dunes are formed and constantly changing due to the action of wind on loose sand particles.
What is the wind erosion of sand particles, slit?Wind erosion is the process by which the wind picks up and transports loose sand particles, causing them to collide with each other and with the surface of rocks and other obstacles in their path. Over time, this process can cause the sand dunes to shift, change shape, and even move across the landscape.
In the case of the Monahans Sandhills, wind erosion is a major factor in the formation and transformation of the sand dunes. The area has a semi-arid climate, with high temperatures and low rainfall, which means that there is not enough moisture in the air or the soil to bind the sand particles together. This loose, dry sand is easily picked up and carried by the wind, especially during periods of high wind speeds.
Hence, the most likely cause of the changes in the sand dunes in the Monahans Sandhills is wind erosion of sand particles, which is option B.
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What is weight of 100 seeds called?
The weight of 100 seeds is known by the name Hundred Seed Weight (HSW).
Seed is the fertilized ovule that represents the undeveloped part of the plant. It consists of all the essential enzymes and food reserves required for its growth and development into a fully grown plant. The seeds can remain in dormant stage for a very long period of time.
HSW gives the yield of the plant and is also an indicator of the inheritance of the quantitative characteristics and how the inheritance is affected by the genotype and environmental factors. Large seeds impact the yield of the plant positively.
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