A series of rapid mitotic divisions that produce small, genetically identical cells called blastomeres is called Cleavage.
Fractionalization is a sequence of fast mitotic divisions that do in the zygote( fertilized egg) following fertilisation but before embryonic gene expression begins. During fractionalization, the zygote goes through a series of cell divisions, producing lower and lower cells known as blastomeres. These blastomeres are genetically identical to one another and contain a dupe of the zygote's inheritable material.
Fractionalization is a critical step in embryonic development because it results in the product of a multicellular embryo from a single- cell zygote. As the blastomeres divide, they eventually form a concave ball of cells known as a blastula, motioning the conclusion of the fractionalization stage and the launch of gastrulation.
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A series of rapid mitotic divisions that produce small, genetically identical cells called blastomeres is called cleavage.
The first week of embryonic development in humans sees the creation of blastomeres starting soon after fertilisation. Zygote division into two cells occurs 90 minutes after fertilisation. The two-cell blastomere stage, which appears after the zygote's initial division, is thought to be the earliest mitotic by-product of the fertilised egg. Blastomeres are a collection of cells created by the continuation of these mitotic divisions. The embryo's overall size stays the same throughout this process, resulting in ever-tinier cells with each division. Morula is the term used to describe a zygote that has 16 to 32 blastomeres.
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which of the following organelles are found in plant cells but not animal cells
Answer:
The plant cells have cell wall, plastids, chloroplasts. These organelles are NOT present in animal cells.
how can the integumentary circulatory respiratory and muscular systems work together to maintain homeostatos
The integumentary system helps your body maintain homeostasis by regulating temperature.
The integumentary system consists of the skin and its accessory organs. The lowest layer of the skin is called the hypodermis and consists mostly of fat cells.The integumentary system helps you absorb vitamin D, which acts as a hormone and is crucial to your bone health because it affects calcium absorption. The tiny hairs in your nose help your respiratory system because they filter out dust and other particles before you inhale them into your lungs.The integumentary system helps regulate body temperature through its tight association with the sympathetic nervous system, the division of the nervous system involved in our fight-or-flight responses. The sympathetic nervous system is continuously monitoring body temperature and initiating appropriate motor responses.
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Cilia and flagella move...
A) In opposite directions of the cell membrane
B) When the bending of microtubules is powered by ATP
C) In the same direction of the cell membrane
D) When the contractions of the basal body triplets are powered by ATP
E)When the central pair of microtubules produce ATP
Answer:
A in opposite direction of the membrane
An organism is born with a mutation that results in ATP synthase (See figure) being entirely hydrophilic. Which of the following is likely to result from this mutation?
- The mutation will result in a severe decrease in the production of ATP leading to death.
- The mutation will prevent glycolysis from occurring within the organism.
- All of the above
An organism is born with a mutation that results in ATP synthase being entirely hydrophilic, the mutation will result in a severe decrease in the production of ATP leading to death.
With some of its subunits being water soluble and others being essential membrane proteins, the ATP synthase is attached to the inner membrane of the mitochondrion.
F1 (factor 1) and Fo are the two distinct parts of the mitochondrial ATP synthase (a factor that confers sensitivity to oligomycin). A proton turbine (inside Fo) and a molecular machine (F1) that uses rotational energy to create ATP from ADP and phosphate make up the reversible molecular motor known as the ATP synthase. The flow of protons along a potential gradient across the mitochondrial membrane produced by the electron transport chain during respiration drives the proton turbine.
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explain why cells don't just continue to grow bigger as the organisms grow bigger. Why do cells divide? Write in complete sentences
Answer:
Cells divide to make sure the organism is growing and it helps the organism get all the stuff they need to live.
Explanation:
Cells have specific dna is in these cells to help the organism grow and keep making life as we know it, multiple cells die for us living
PLS HELP IVE BEEN ASKING FOR 2 DAYS OML NOBODY WILL HELP ;( ME GO CRY
Answer:
A.
Explanation:
Bc the rest are not reasonable
Answer:
A. to maintain desirable traits
Explanation:
I'm positive that this is correct
pls help me i need help rlly fast
Answer:
Plastics are good insulators
a couple has six children-all daughters. if they have a seventh child, what is the probability that the seventh child will be a daughter
The probability of having a daughter is 50% or 1/2, regardless of the gender of the previous children.
The fact that the couple already has six daughters does not influence the probability for the seventh child. Therefore, the probability of the seventh child being a daughter is still 1/2.The probability that the seventh child will be a daughter is 1/2 or 50%. This is because the gender of the child is determined independently, and there is an equal likelihood of having a son or a daughter.
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Eva investigates the number of daisy plants growing on the school playing field.
She uses a quadrat to count the number of daisy plants growing in different areas of the
field.
The table shows her results.
quadrat
1
2
3
4
number of daisy
plants
8
2
7
Each quadrat has an area of 0.25 m².
The school playing field has an area of 15000 m².
Estimate the population of daisy plants growing on the school field.
Eva investigates the number of daisy plants growing on the school playing field and uses a quadrat to count the number of daisy plants growing in different areas and the total number of plants in the field is 330,000.
What is the population density?
The population density explains the total number of individuals present in a given area, as the density of the population of an area may increase or decrease based upon the availability of foods and the climatic conditions.
Hence, Eva investigates the number of daisy plants growing on the school playing field and uses a quadrat to count the number of daisy plants growing in different areas and the total number of plants in the field is 330,000.
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The question is incomplete, the complete question is the below
Eva investigates the number of daisy plants growing on the school playing field.
She uses a quadrat to count the number of daisy plants growing in different areas of the
field.
The table shows her results.
quadrat
1
2
3
4
number of daisy
plants
8
2
7
5
Each quadrat has an area of 0.25 m².
The school playing field has an area of 15000 m².
Estimate the population of daisy plants growing on the school field.
a)682
b)82500
c)330000
d)1320000
Why would seedlings not emerge?
Not enough sunlight
Wrong condition soil
Phloem is made up of living cells. Phloem takes sugars in the _____ to the roots.
O leaves
O seeds
O flowers
O stem
Phloem takes sugars in the leaves to the roots.
What is Phloem ?In vascular plants the specialized tissue known as phloem is in charge of moving sugars and amino acids produced during photosynthesis from the leaves and other photosynthetic organs to other sections of the plant.
Therefore, Sugar in the leaves is transported to the roots by phloem. In plants, the phloem is a specialized tissue that transfers nutrients from the leaves where they are produced during photosynthesis, such as sugars, amino acids and other nutrients.
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Bacteria that generate reactions such as swelling of tissues, and fever in humans are an example of microorganisms that -
A.form mutualistic relationships with cells of other organisms.
B.break down the organic matter of dead plants and animals.
C.are pathogenic and are able to cause disease by killing host cells.
D.live in close association and provide resources for all plants and animals.
Answer:
B. Break down the organic matter of dead plants and animal
the germinal period of development takes place in the _____ after conception.
The germinal period of development takes place in the first two weeks after conception.
The germinal period is the initial stage of prenatal development that begins with fertilization and ends with the implantation of the fertilized egg, known as the blastocyst, into the uterine wall. During this period, rapid cell division occurs, and the blastocyst undergoes differentiation into specialized cell layers that will eventually form the embryo and support structures such as the placenta. The germinal period is a critical time when the zygote develops into a multicellular organism and prepares for further development in subsequent stages.
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Why can Zoologist learn about evolution from studying Mollusks?
Among mollusks are worm-like aplacophorans, snails, slugs, etc. Their phenotypic diversity makes them suitable for studying animal evolution. Therefore, zoologist can learn a lot about evolution.
Why do Zoologists study mollusks?Mollusks play a significant role in the engineering of ecosystems, contributing to the structure of aquatic bottom environments and offering habitat, protection, and food to a diverse range of other taxonomic groups. Mollusks have been essential to humans in many different ways throughout history, and they continue to be an economically important group on a global scale today.
Mollusks come in a wide variety of morphological forms, some of which include worm-like organisms called aplacophorans, snails and slugs, bivalves, and cephalopods. Mollusks are classified under the class Mollusca. Their wide range of phenotypes makes them an excellent subject for research on the evolution of animal species.
Mollusks are significant in a number of different contexts, including the culinary industry, the decorative arts, the jewelry industry, and scientific research. They are so versatile that even roadbed material and vitamin supplements make use of them.
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What molecule is represented here?
Which is true of the reaction below?
2H2 + 02 → 2H,0
A.H2 and O2 are products
B.H2O and O2 are products
C. O2 is a product
D. H2 is a reactant
Answer: D
Explanation: Everything to the left of the yield, or the arrow, is a reactant (it reacts). Everything on the right side is a product.
Answer:
The answer is D. H2 is a reactant.
Explanation:
I do A P E X.
Only ------ percent of the food eaten is turned into its own body.
Answer:
10%
Explanation:
there is a the rule that only 10% of the energy is transferred from one trophic level to the other.
this means that only 10% of the food an organism eats is passed onto the next organism. eg only 10% of the energy in a plant is transferred to a rabbit that eats the plant. After that if a wolf eats the rabbit only 10% of the energy of food will pass on to the wolf.
Globalization is the process of the world becoming more connected. Like any process that involves economic choices, it has positive and negative consequences. China is one of the world's fastest-growing economies, and it has experienced many consequences as the result of globalization. One severe consequence has been a sharp increase in air pollution. In an informative essay, describe the effects of globalization on air pollution in China's largest cities. Use outside research to gather anecdotes and data to help you demonstrate your findings. Be sure to cite your sources on a Works Cited page.
70 Points
Despite that globalization contributed to air pollution in China's largest cities, it has also led to increased awareness and action on the issue.
As countries continue to work together to address air pollution, there is hope that the negative impacts of globalization can be mitigated, and the health and well-being of urban residents can be improved.
What are the effects of globalization on air pollution in China's largest cities?Globalization has had both positive and negative effects on air pollution in China's largest cities. On one hand, globalization has contributed to economic growth, urbanization, and industrialization in China, which has led to increased economic activity and improved living standards for many people. However, this growth has also led to increased air pollution, particularly in urban areas.
One of the main ways that globalization has contributed to air pollution in China's largest cities is through the expansion of industrial activities. As global demand for goods and services has increased, China has become a major manufacturing hub, with many factories located in or near urban areas. Many of these factories use fossil fuels and emit large amounts of pollutants into the air, contributing to the country's air pollution problem.
However, it has positive side because its has also led to increased awareness and action on air pollution in China's largest cities. As international attention has focused on China's air pollution problem, the government has taken steps to address the issue, such as implementing stricter emissions standards and investing in renewable energy sources.
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Subject Course : Earth Science
1.
What kind of breeze occurs during the day in coastal areas?
sea breeze
valley breeze
mountain breeze
land breeze
2.
What is the main factor that affects local winds?
trade winds
the Coriolis effect
uneven heating of Earth’s surface
altitude
3.
What type of breeze occurs near mountains at night?
valley breeze
land breeze
mountain breeze
sea breeze
*I will provide Brainliest if given correct answers.
Answer:
Subject Course : Earth Science
1.
What kind of breeze occurs during the day in coastal areas?
✔️ breeze
valley breeze
mountain breeze
land breeze
2.
What is the main factor that affects local winds?
trade winds?
✔️the Coriolis effect
uneven heating of Earth’s surface
altitude
3.
What type of breeze occurs near mountains at night?
valley breeze
land breeze
✔️mountain breeze
sea breeze
Explanation:
please mark me as brainliest
What adverse effects does covering the land with concrete and asphalt create?
1.Natural resources are depleted.
2.The flow of water in rivers is changed.
3.Vegetation and trees cannot grow.
4.Non-native species are introduced to a foreign environment.
Covering the land with concrete and asphalt creates natural resource depletion, alters water flow, impairs the growth of vegetation, and can cause the growth of invasive species.
Effects of covering lands with concrete and asphaltCovering land with concrete and asphalt has adverse effects on the environment. It depletes natural resources during construction and maintenance.
The impermeable surfaces disrupt the natural water flow, altering rivers and increasing runoff, leading to flooding and erosion. Vegetation and trees struggle to grow as concrete and asphalt prevent sunlight, water, and air from reaching the soil.
This impacts biodiversity, wildlife habitats, and the ability of plants to purify the air and sequester carbon. Additionally, the transportation of materials and equipment for construction can introduce non-native species, causing ecological imbalances. Mitigation efforts and alternative land management practices can help alleviate these effects.
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if two species of woodpeckers eat two different kinds of beetle larvae on pine trees in a forest, we would identify that as:
If two species of woodpeckers eat two different kinds of beetle larvae on pine trees in a forest, we would identify that as resource partitioning.
A species is both a unit of biodiversity and an organism's basic taxonomic classification in biology. A species is the largest collection of organisms in which any two people of the appropriate sexes or mating types can conceive a fertile offspring, typically through sexual reproduction. In addition, a species can be recognized by its karyotype, DNA pattern, anatomical features, behavioral traits, or ecological niche. Additionally, paleontologists employ the chronospecies concept because fossil reproduction cannot be investigated.
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2. Explain why uneaten strawberries will eventually rot. What is the ecological advantage of the factors
that cause this to happen?
Microorganisms like bacteria and fungi will eventually rot uneaten strawberries.
Why will uneaten strawberries eventually rot?Uneaten strawberries will eventually rot due to the presence of microorganisms like bacteria and fungi that break down the fruit's organic matter.
What is the ecological advantage of the factors that cause strawberries to rot?The ecological advantage of strawberries rotting is that the breakdown of organic matter creates nutrients that can be returned to the soil. These nutrients can then be used by other organisms, such as plants, to grow and thrive. Additionally, the process of decomposition helps to recycle and break down organic material, which helps to maintain a healthy balance in ecosystems.
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given the data shown what two substance does the unknown mixture have?
Answer: GELATIN AND CORNSTARCH
Explanation: I GOT A 100
Gelatin is coarse in appearance and is acidic and both cornstarch and salt are neutral, so the unknown mixture can be salt and cornstarch.
Apart from the physical appearance of the mixture, a litmus test is used to determine if the given mixture is acidic or basic. The litmus test is based on the change in color of the litmus paper when hydrogen ions react with the dye used in litmus paper.
We will analyze the chemical and physical characteristics of the unknown mixture to determine the compound.
Physical characteristics – The given mixture appears as a white powder.Chemical characteristics – The litmus analysis of the compound suggest that the given compound is neutral and has a positive vinegar test.From the given compounds,
Gelatin appears as acidic compound during the litmus test, so, it cannot be a part of the unknown mixture.Backing soda gives the basic reaction on the litmus test and therefore cannot be a part of the unknown mixture.Cornstarch and salt on the other hand are neutral when analyzed with litmus test.Therefore, the given compound is a mixture of Salt and Cornstarch.
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Your question is incomplete, the probable question is : From the given data, select the option which contains a probable combination of 2 substances that the unknown mixture can have?
Gelatin and baking powder.Gelatin and backing sodaGelatin and cornstarchSalt and cornstarch3.)Why do the coal beds form a pattern only on the map of Pangea?
The major functions of proteins in cells do not include:.
The major functions of proteins in cells do not include the following: storing genetic information.
What is the role of protein in cells?The major functions of proteins in cells are:Enzymes, which catalyze all of the reactions of metabolism and catabolism. Transport proteins, which assist in the movement of substances across membranes.Structural proteins, which provide support to cells and tissues.Receptors, which allow cells to communicate with each other by detecting and responding to chemical signals.
Regulators of gene expression, which turn genes on and off and regulate the rate of protein synthesis.Some additional functions of proteins in cells are: signaling molecules, immune system defense, and energy storage.
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Consider the following two statements about succession.
Student 1:
Matthew - As succession begins, communities tend to be dominated by mostly K-selected species. As succession continues, r-selected species tend to compete better and therefore become more and more common.
Student 2:
Iman - As succession begins, communities tend to be dominated by mostly r-selected species. As succession continues, K-selected species tend to compete better and therefore become more and more common.
Which student is correct?
a. Provide a rationale for your answer (2 marks)
b. Provide a specific example of succession which includes at least one example of an r-selected and one example of a K-selected species. (1 mark)
Note - No marks are earned by simply agreeing with either Matthew or Iman
Regulating the Cell Cvele
READING TOOL Make Connections In the graphic organizer below, fill in each box with headings from this unit to help you understand the concepts.
A cell cycle is the sequence of events that occur in a cell as it develops and splits. A cell spends the majority of its time in what is known as interphase, where it develops, copies its chromosomes, and prepares for cell division.
What is the cell cycle ?The cell cycle, also known as the cell-division cycle, is the sequence of events that occurs in a cell that causes it to split into two offspring cells. These events include the reproduction of its DNA and some of its organelles, followed by the split of its cytoplasm, chromosomes, and other components into two daughter cells in a process known as cell division.
The cell cycle in nucleated cells (eukaryotes, which include mammal, plant, fungal, and protist cells) is split into two stages: interphase and the mitotic (M) phase (including mitosis and cytokinesis).
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1, describe how thermal energy/heat affects atoms within the 3 state of matter.
2, describe the process of sublimation.
3. describe the process of deposition.
4. list different phase changes might see on a jeepney/tricycle ride to school on a very cold morning
Answer:
When heat is added to a substance, the molecules and atoms vibrate faster. As atoms vibrate faster, the space between atoms increases. The motion and spacing of the particles determines the state of matter of the substance. ... Solids, liquids and gases all expand when heat is added.
Explanation:
On islands off the coast of Siberia, paleontologists have found the remains
of pyginy mammoths. These populations were likely separated from
mainland mammoth populations and became a new type of mammoth
through allopatric adaptation.
true or false
Please help
Different patterns of inheritance Inheritance of traits is often more complex than just simple dominant recessive relationships between alleles. Non-Mendelian inheritance is any pattern of inheritance in which traits do not segregate in accordance with Mendel's laws. Below is a list of examples. Please correctly classify each of the following traits according to the type of Non-Mendelian inheritance pattern. Multiple genes influence a phenotype In A and B blood types 5 This means that when an organism has two different alleles (ie, is a heterozygote). it'll express both at the same time, When two different alleles are inherited, both traits are expressed at the same time but the traits produce an intermediate phenotype rather than a dominant trait masking a recessive trait Traits are controlled by many genes instead of traits controlled by alleles from one gene Two alleles are both expressed equally rather than a dominant allele taking complete control over a recessive allele. Codominance Height Two genes can interact to produce a phenotype, such that one gene can override another Human eye color Familial hypercholesterolemia nce pattern. Multiple genes influence a phenotype Incomplete dominance Codominance Epistatic interaction Reset
Non-Mendelian inheritance is any pattern of inheritance in which the traits do not segregate in accordance with Mendel's laws. These include epistasis, codominance, incomplete dominance, polygenic inheritance, etc.
What is Non-Mendelian inheritance?Non-Mendelian inheritance are the inheritance patterns in which the genes do not segregate in accordance with the Mendel's laws.
Multiple genes influence a phenotype: Epistatic interaction.
In A and B blood types: Codominance. This means that when an organism has two different alleles (i.e., is a heterozygote), it will express both at the same time.
When two different alleles are inherited, both traits are expressed at the same time, but the traits produce an intermediate phenotype rather than a dominant trait masking a recessive trait: Incomplete dominance.
Traits are controlled by many genes instead of traits controlled by alleles from one gene: Polygenic inheritance.
Two alleles are both expressed equally rather than a dominant allele taking complete control over a recessive allele: Codominance.
Two genes can interact to produce a phenotype, such that one gene can override another: Epistatic interaction.
Familial hypercholesterolemia: Autosomal dominant inheritance.
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