An appropriate description mentioned in last statement, which is "It has half the amount of DNA as the cell that began meiosis".
How much DNA is present at the beginning of meiosis?A chromosome has a tetrad (4 chromatids or 4 DNA molecules) during prophase I and metaphase I of meiosis, which is then reduced to two chromatids (2 DNA molecules) by the time metaphase II takes place.Prophase I marks the start of meiosis I, the first meiotic division. Chromosomes are formed during prophase I during the condensing of the DNA and protein complex known as chromatin. The sister chromatids pairs of replicated chromosomes remain connected at a central region called the centromere.Learn more about meiosis here: brainly.com/question/29383386
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A protein has 100 peptide bonds. How many amino acids does it have? Name the four elements found in amino acid.
Answer:
twenty amino acids
Explanation:
and
carbon
nitrogen
oxygen
hydrogen, for the second question
Animals have cells of various sizes and shapes. Fat cells are roughly spherical and can be quite large. The cells lining the gut, on the other hand, are much smaller and have highly folded plasma
membranes on one side, as represented in the figure. Which of the following describes the effect of a cell's shape and size on its ability to exchange substances with its environment?
As a cell gets bigger, diffusion becomes less efficient because the surface-to-volume ratio decreases. As the sphere or animal gets bigger, the surface area for diffusion gets smaller.
Describe a cell example:All of these plants and animals, including trees in a forest, fish in a river, horseflies on a farm, lemurs in the jungle, reeds in a pond, and worms in the soil, are comprised of the building blocks known as cells. Many living organisms, like these examples, are made up of many cells cooperating with one another.
What does a cell perform?They provide the body with structure, absorb the nutrients from food, turn those into energy, and carry out specific functions. Furthermore, cells have the ability to replicate themselves that contain the brain's genetic material.
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Will this movement re hire an input of energy?
Their movement will require the input of energy. That is option B.
What is an active transport?An active transport is defined as the movement of molecules across the cell membrane from different compartments in the living organism.
The active transport makes use of energy because of the need to move molecules from a semi permeable membrane that is against a concentration gradient.
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draw an animal cell and label it's parts
Explanation:
Labeled Animal Cell!
. ;
A gap in the geologic record that occurs when sedimentary rocks cover an eroded surface is called a(n)
*
1 point
Intrusion
Unconformity
Fault
Extrusion
A well-known cell-survival pathway involves a kinase called _______ that is activated by the _______, leading to a larger chance that the cell will survive a stimulus that would normally lead to its destruction
Answer:
Protein kinase B (PKB); 3,4,5-triphosphorylated phosphoinositide (PIP3)
Explanation:
Protein kinase B (PKB) is a kinase protein involved in receptor tyrosine kinase regulatory pathways. This enzyme attaches ATP-phosphate groups to serine/threonine residues in order to alter the activity of target protein substrates. PKB is involved in many cellular processes including transcription, cell proliferation and apoptosis. PKB is activated by the 3,4,5-triphosphorylated phosphoinositide (PIP3) enzyme and then this kinase propagates the signal to Akt (another serine/threonine kinase) by phosphorylation of its catalytic domain. The Akt/PKB signaling pathway is well-known to promote cell survival in response to extracellular signals/stimuli.
what is the description of white light coming from the sun
Answer:
The Sun *emits* white light, which is actually a composite of all of the visible frequencies of light. (A prism shows you the visible frequencies of white light.) The distribution of solar frequencies is uneven, the most intense frequency is in the yellow-green part of the spectrum.
.Explicati de ce algele pluricelulare au culoarea rosie,verde respectiv bruna ?
Answer:
Due to different pigments.
Explanation:
The multicellular algae are red, green and brown because of the presence of pigments. The red algae are red in colour because of the presence of the phycoerythrin which is a type of pigment. This pigment reflects red light due to already presence in its body and absorbs blue light that is necessary for photosynthesis process. The brown algae contain fucoxanthin pigment and green algae contain xanthophylls pigments that are responsible for its colour so we can conclude that these different types of pigments are responsible for the different colour of algae.
In 3–5 sentences, relate the impact of the industrial use of water for hydraulic fracturing (fracking) with the availability and quality of water.
SOMEONE PLEASE HELP!
Answer:
The industrial use of water for hydraulic fracturing, or fracking, can have a significant impact on the availability and quality of water resources. Fracking requires large volumes of water to be mixed with chemicals and injected underground to extract oil and gas from shale formations. This high demand for water can strain local water supplies, especially in regions already facing water scarcity or drought conditions. Moreover, the water used in fracking becomes contaminated with various chemicals and pollutants, making it challenging to treat and potentially affecting the quality of nearby water sources through leakage or spills. The potential depletion and contamination of water resources due to fracking underscore the importance of careful management and regulation to ensure the sustainable use and protection of water supplies.
Explanation:
How many senses are in your body?
what would happen if the hydrogen ion pumps in the tigers mitochondiar stopped functioning
If the hydrogen ion pumps in the tiger's mitochondria stopped functioning, it would have severe consequences on the process of oxidative phosphorylation and the overall production of ATP (adenosine triphosphate), which is the energy currency of cells.
The hydrogen ion pumps, also known as the electron transport chain complexes, play a crucial role in oxidative phosphorylation. They are responsible for creating a proton gradient across the inner mitochondrial membrane by pumping hydrogen ions (protons) from the mitochondrial matrix to the intermembrane space. This proton gradient is essential for the functioning of ATP synthase, an enzyme that synthesizes ATP.
Without functioning hydrogen ion pumps, the proton gradient would not be established. As a result, ATP synthase would not be able to generate ATP efficiently. This would lead to a significant reduction in ATP production, which is essential for various cellular processes, including muscle contraction, biosynthesis of molecules, active transport, and maintenance of cellular homeostasis.
The lack of ATP production would cause a rapid depletion of cellular energy reserves. Cells would struggle to carry out their normal functions, and the tiger would experience a loss of energy and overall decline in physical performance. Vital processes such as muscle movement, digestion, and even basic metabolic functions would be compromised.
Additionally, the accumulation of hydrogen ions within the mitochondrial matrix would disrupt the pH balance, affecting the efficiency of other metabolic pathways and potentially leading to cellular damage or dysfunction.
In summary, the dysfunction of hydrogen ion pumps in the tiger's mitochondria would severely impair ATP production, resulting in a decline in energy levels and overall cellular function. It would have significant implications for the tiger's survival and well-being.
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what are 2 examples of how ordinary citizins created significant social change
Civil Rights Movement and Women's Suffrage Movement are 2 examples of how ordinary citizens created significant social change.
Civil Rights Movement in the United States: The Civil Rights Movement of the 1950s and 1960s saw ordinary citizens, such as Rosa Parks, Martin Luther King Jr., and countless others, playing crucial roles in challenging racial segregation and discrimination. Through peaceful protests, civil disobedience, and grassroots activism, they brought attention to the injustices faced by African Americans and fought for equal rights, leading to significant changes in legislation and societal attitudes.
Women's Suffrage Movement: The women's suffrage movement fought for women's right to vote and brought about significant social change. Ordinary citizens, including suffragettes like Susan B. Anthony and Elizabeth Cady Stanton, organized rallies, protests, and campaigns to advocate for women's suffrage. Their persistent efforts, spanning several decades, eventually led to the passage of the 19th Amendment in 1920, granting women the right to vote in the United States.
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4. The ATP yield from 2 moles of mitochondrial NADH under aerobic conditions in a eukaryotic cell would be: which option is correct a) 1 mole of ATP b) 2 moles of ATP c) 3 moles of ATP d) 4 moles of ATP e) 6 moles of ATP
The ATP yield from 2 moles of mitochondrial NADH under aerobic conditions in a eukaryotic cell is approximately 4 moles of ATP.
During oxidative phosphorylation, each mole of NADH can generate around 2.5 to 3 moles of ATP. Therefore, for 2 moles of NADH, the total ATP production would be in the range of 4 to 6 moles of ATP. While the more precise estimate falls within the 4 to 6 moles range, the closest option provided is 4 moles of ATP. It is important to note that the exact ATP yield can vary depending on factors such as the efficiency of the electron transport chain and the specific conditions within the cell.Since there are 2 moles of mitochondrial NADH, the total ATP yield would be around 4 to 6 moles of ATP. However, the most accurate option among the given choices is 4 moles of ATP.
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Which of the following is used to represent a dominant trait in a Punnett square?
A- An uppercase letter
B- A lowercase letter
C- A shaded square
D- A shaded circle
(if u answer pls have a explanation thanks :))
Drag each label to the correct location.
Categorize the structures as homologous or analogous
the mammalian tail and
the human coccyx (tail bone)
the leaves of pitcher plants
and cacti
the flippers of penguins
and dolphins
the bills of ducks
and platypuses
Homologous
Reset
Next
the shells of turtles
and crabs
Analogous
The analogous organs include shells of turtles and crabs and flippers of penguins and dolphins. While the homologous organs include the leaves of pitcher plants and cacti and mammalian tail and the human coccyx.
What are homologous and analogous organs?The homologous and the analogous structures are used as evidence of the comparative anatomy. They are important in determining the pattern of evolution and ancestry.
The homologous organs are characterized by similar structures that vary in functions. The leaves of pitcher plants and cacti and mammalian tails and the human coccyx have a similar anatomical structure but are used for various purposes.
The analogous organs have the same function even when they have different structures like the shells of turtles and crabs and flippers of penguins and dolphins. The shells protect both turtle and crab, while flippers are used to swim.
Therefore, the shells of turtles and crabs and flippers of penguins and dolphins are analogous organs.
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True or False Cells spend the least amount of time in interphase.
Answer:
False
Explanation:
Interphase is the stage, in which cell prepares for entire cell division by duplication of the genetic material. This phase has G1, G2, G0 and synthetic stages.
Define Physical Properties?
Answer:
A physical property is any property that is measurable, whose value describes a state of a physical system. The changes in the physical properties of a system can be used to describe its changes between momentary states. Physical properties are often referred to as observables. They are not modal properties.
Define Global Warming
Answer:
a gradual increase in the overall temperature of the earth's atmosphere generally attributed to the greenhouse effect caused by increased levels of carbon dioxide, chlorofluorocarbons, and other pollutants.
Answer:
a gradual increase in the overall temperature of the earth's atmosphere generally attributed to the greenhouse effect caused by increased levels of carbon dioxide, chlorofluorocarbons, and other pollutants.
Explanation:
which system is responsible for beathing
In Activity 2, which of the respirometers serves as a control? Explain your answer! Why was it the control? You should write at least 3 sentences to explain this. Respirometer A contains germinated beans. respirometer B contains dormant beans and plastic beads respirometer C contains plastic beads.
In Activity 2, the respirometer C serves as the control. A control is an essential part of any scientific experiment as it provides a baseline against which the experimental results can be compared.
Respirometer C containing only plastic beads does not contain any living organisms and therefore does not undergo cellular respiration. By comparing the results of respirometers A and B with the control (respirometer C), any changes in oxygen consumption and carbon dioxide production can be attributed to the metabolic activity of the germinated beans in respirometer A and the dormant beans in respirometer B.
This allows researchers to determine the specific effects of germination on cellular respiration by isolating the variables and eliminating any external factors that could influence the results.
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Can someone help me understand this plz
Which type of soil would be LEAST likely to support the growth of a rose bush?
Answer:
Roses are very adaptable and can be grown in almost any soil type given it is well drained, deep and full of humus (decayed organic matter).
However, the best soils are those of a medium to heavy loam to a minimum of 35cm, over a good clay sub-soil.
Explanation:
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When a rock transforms into another type of rock, what is the scale at which these changes are occurring?
A. The changes are physical only; the rocks are the same rocks, they just look different
B. At the subatomic level; the rocks atoms are gaining and losing subatomic particles and changing.
C. At the molecular level; the rocks are forming new bonds and becoming something new
D. At the atomic level; the rocks are becoming new rocks and changing on an atomic level.
When a rock transforms into another type of rock, the scale at which these changes are occurring is at the atomic level, which is option D.
Rocks are composed of minerals, which are made up of different combinations of atoms. During the process of rock transformation, such as through the geological processes of metamorphism or igneous activity, the arrangement and composition of the atoms within the minerals change. This leads to the formation of new minerals and the alteration of the rock's properties.
At the atomic level, the atoms within the minerals may rearrange themselves, forming new bonds and crystal structures.
This can result in changes in the physical characteristics of the rock, such as its texture, color, or mineral composition.
The transformation may involve the loss or gain of atoms, leading to changes in the overall chemical composition of the rock.
Therefore, the changes occurring when a rock transforms into another type of rock primarily occur at the atomic level, as the atoms within the minerals undergo reorganization and bonding to create a new rock with distinct properties.
Therefore, the correct answer is D.
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which layer of earth is the thickest and contains hot softened rock?
Answer:
the mantle
Explanation:
Which type of biological population growth explains a seasonal swarm of locust?
A. Stable
B. Irruptive
C. Irregular
D. Predator and Prey
The type of biological population growth which explains a seasonal swarm of locust is referred to as Irruptive and is therefore denoted as option B.
What is Irruptive growth?
This type of growth which is characterized by the species of organisms having a sudden rapid growth or explosion which is followed by a sudden crash or die-back.
This is common in organisms who are prevalent in certain periods of the year such as the locust in the rainy season. They can be seen in large quantities and after a while their population is reduced again and then the cycle goes on.
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1. Josie was given a set of cards that identify the hierarchical organization of organisms. She orders the cards from least complex to most complex. Which shows the cards in the correct order?
To determine the correct order of the cards representing the hierarchical organization of organisms from least complex to most complex.
The hierarchical organization of organisms typically follows a pattern from lower to higher levels, such as:
Cell: The basic unit of life, organisms are composed of one or more cells.Tissue: A group of similar cells working together to perform a specific function.Organ: A structure composed of different tissues functioning together to carry out specific tasks.Organ System: A group of organs that work together to perform a particular function or set of functions.Organism: A complete, individual living being composed of various organ systems working in coordination.If you have a set of cards representing these hierarchical levels or a similar set, the correct order would be:
CellTissueOrganOrgan SystemOrganismPlease provide more specific information or the actual cards in order to confirm the correct order based on the given set.
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Choose all the answers that apply.
The cell membrane _____.
A.) is not a true organelle
B.) contains and protects the cell
C.) is made of a double layer of phospholipids
D.) contains proteins that allow materials to pass through
Answer:
C and B
Explanation:
NEED ANSWER
IN PHOTOSYNTHESIS DO YOU LOSE OR GAIN ATONS
Answer:
you gain
Explanation:
In which way are photosynthesis and cellular respiration different?
A
Photosynthesis used carbon dioxide, while cellular respiration produces carbon dioxide
B
Cellular respiration stores ATP, while photosynthesis releases ATP
C
Cellular respiration produces oxygen, while photosynthesis uses oxygen
D
Photosynthesis releases energy, while cellular respiration stores energy
Answer:
its A). Photosynthesis used carbon dioxide, while cellular respiration produces carbon dioxide
Explanation:
Which of the following is the first step in a balance training progression?
The first stage of a progression for balance training is static balancing exercising.
What exactly is a balance test?Standing straight, putting your hands on your hips, lifting one foot off the ground, and maintaining that static posture for as long as you can without letting your hands leave your hips or allowing your foot hit the ground is how to take this test.
What is the balance training method?Exercises for balance training include strengthening your legs and core, two muscles that are important for maintaining your balance. These exercises can help prevent falls by improving stability. Balance exercises can be challenging, much like some of the most challenging yoga positions.
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Question:
Which of the following is the first step in a balance training progression?
A. Dynamic balance exercises
B. Perturbation training
C. Sport-specific balance training
D. Static balance exercises