The scar left on the seed coat after the seed has separated from its stalk is called the: Hilum.
Butterflies laying their eggs on milkweed plants occurs at what level of the biosphere hierarchy? a. Ecosystem b. Biome c. Population d. Community.
Butterflies laying their eggs on milkweed plants occurs at the community level of the biosphere hierarchy.
What do you mean by Biosphere?The biosphere may be defined as the area of the planet where organisms live, including the ground and most commonly air.
During the process of pollination, butterflies lay their eggs on the milkweed plant, which is considered under the community level of the biosphere hierarchy.
Therefore, Butterflies laying their eggs on milkweed plants occurs at the community level of the biosphere hierarchy.
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Answer: d
Explanation:
When mitochondria are actively carrying out aerobic respiration
Hi! I believe your answer is the pH of the matrix is greater than the pH of the intermembrane space.
---
Hope this helps, and please correct me if I am wrong
When mitochondria are actively carrying out aerobic respiration that is cellular respiration stages of krebs cycle.
What is Mitochondria?
Mitochondria, organelles specialised to perform cardio breathing, include an internal membrane folded into cristae, which shape separate compartments: the internal membrane area and the matrix.
The Krebs Cycle takes region withinside the matrix. Glycolysis takes place withinside the cytosol of the cell and does now no longer require oxygen, while the Krebs cycle and electron shipping arise withinside the mitochondria and do require oxygen.
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explain how the scientific theory of evolution is supported by molecular biology
The theory of evolution is supported by molecular biology because the linear order of nucleotides and sequence homo-logy may be useful to show a common origin.
What is sequence homo-logy?The expression sequence homo-logy makes reference to the similarity level between two or more sequences (e.g., DNA sequences) in organisms.
The sequence homo-logy can be very useful to show a common evolutionary origin in a group of organisms.
The sequence homo-logy refers to the linear sequence of nucleotide bases in the DNA molecule.
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What is the problem in this article? What solution does the article propose?(Site 1)
The problem being talked about in the article is the issue of sea turtle bycatch which happens when nets are used to fish.
The solution proposed by the article is that of Turtle Excluder Devices (TED) which allow for sea turtles to escape through flap-like openings and metal bars.
What does the article talk about?The article talks about how the issue of sea turtle bycatch is affecting sea turtle conservation efforts because sea turtles get caught in nets that were laid for shrimp and other fish.
The solution being proferred is a TED which when added to a net, provides a flap-like opening such as metal bars that allow for sea turtles to escape the net.
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Answer:
Explanation:
The problem being talked about in the article is the issue of sea turtle bycatch which happens when nets are used to fish.
The solution proposed by the article is that of Turtle Excluder Devices (TED) which allow for sea turtles to escape through flap-like openings and metal bars.
explain why camouflage and mimicry can increase an organism’s fitness
Camouflage: Structural adaptation that enables an individual to blend with its surroundings, and that allows an individual to avoid detection by predators. … Camouflage and mimicry are both adaptations because they increase the likelihood of an individual evading predation long enough to reproduce.
Sure hope this helps you! :)
P.S my name is Misty
The panting responses observed in overheated birds and mammals dissipate excess heat by ________.
Answer:
Evaporation
Explanation:
The panting responses observed in overheated birds and mammals dissipate excess heat by evaporation
What is a result of preventing spindle fibers from forming?.
Study the cladogram. Which two organisms have dry skin? gorilla and shark shark and lizard lizard and tiger tiger and lamprey.
Answer:
It's C.
Explanation:
I chose B but I got it wrong. Since lizards obviously have dry skin, the other option with lizards is C. And you can also see in the cladogram that above "dry skin" is lizards and tigers.
So it's C.
The relationship between the two organisms is represented by a cladogram. Here, dry skin is seen in lizard and tiger. Thus, option c is correct.
What is a cladogram?Cladogram is based on the evolutionary relationship between the organisms and how closely they are related to each other. It is expressed in the form of branching diagram.
In cladograms, the morphological features are included. However, advanced cladograms can be constructed using DNA or RNA sequencing.
Cladograms are useful tools for studying evolution as they are represented through simple diagram. The advantage of using cladogram is that it includes only the pure characters. No derived characters are taken into account.
Thus, cladograms are important in determining the evolutionary relations amongst the taxonomic groups.
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Which best describes the movement through the nephron?
A. Blood is passed into the nephron and removed through the urethra.
B. All materials that exit the blood into the nephron are removed in the urine.
C. Some of the materials that exit the blood can be returned to the blood.
D. High quantities of sugars and water are excreted in the urine.
Some of the materials that exit the blood can be returned to the blood is the best description of the movement through the nephron. Therefore, the correct statement is option C.
What is the nephron?The nephron is the functional unit of the kidney that is responsible for filtration of blood, regulation of the balance of fluids and electrolytes, and removing waste products from the body.
It is filtered by the glomerulus as blood flows through the nephron, and the filtrate then passes through the renal tubules, where substances such as glucose are reabsorbed back into the bloodstream.
The process is important for maintaining the homeostasis of the body, such as regulating blood pressure and the remaining waste products are excreted out of the body in the form of urine through the ureters and urethra.
Therefore, the materials that exit the blood can be returned to the blood is the best description of the movement through the nephron.
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A population of cells carrying a desired plasmid is called a.
Answer:
it is called a clone
Explanation:
DNA used to transmit a gene from one organism to another there fore it being a clone
Answer:
Clone
Explanation:
A population of cells carrying a desired plasmid is called a Clone. Self-replicating DNA used to transmit a gene from one organism to another is a Vector
The age of the earth is inferred from the
Group of answer choices
age of the Grand Canyon.
age of dinosaurs.
age of the Canyon Diablo meteorite.
age of the uranium-235
The age of the earth can however be derived from prior knowledge of the age of the Canyon Diablo meteorite.
What is Age?This is defined as the length of time during which a being or thing has existed.
The fragment of the Canyon Diablo meteorite determined the elements that formed as radioactive uranium decayed over billions of years.
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I'LL GIVE BRAINLEST!
Describe what a convection current is. Explain how the Sun causes convection currents in the atmosphere. Then explain how these convection currents cause winds.
Answer:
Ok so i will try my best to describe the answers:
1) a convection current is like a boiling pot of soup. the burner heats up the soup on the bottom. hot air always goes up because the molecules become more active, making them space out upward. the hot soup travels up through the center of the pot, and the cold soup up top travels down towards the edges of the pot to replace the hot soup that just moved up. the process keeps on going and going until there is no more heat, or until the burner turns off.
2&3) the sun makes everything warmer, so when the sun touches Earth's surface, it warms up the air around it. as soon as the air warms up, it goes up into the atmosphere, like the pot of soup example. then, cold air from the top moves in to replace the hot air. with so many molecules of air moving at one time, it makes gusts of wind during the movement. when it is really windy, that means that there is a lot of hot air moving up and cold air moving down. when there is no wind, that means that every molecule is where it is supposed to be, not disturbing one another.
I hope this helps :D
The Sun's heating of the Earth's surface generates convection currents in the atmosphere. These convection currents, driven by differences in temperature and density, lead to the formation of winds as warm air rises and cooler air sinks.
The combination of convection currents and the Coriolis effect creates the intricate wind patterns and circulation systems that influence weather and climate across the globe.
A convection current is a process of heat transfer that occurs in fluids (liquids or gases) where warmer regions of the fluid rise while cooler regions sink. This phenomenon is driven by differences in temperature and density within the fluid. As a fluid is heated, it becomes less dense and rises, while cooler, denser fluid sinks to replace it. This movement forms a circular pattern known as a convection current.
The Sun plays a crucial role in generating convection currents in Earth's atmosphere. The Sun's energy reaches the Earth primarily in the form of sunlight. When sunlight strikes the Earth's surface, it warms the air close to the surface. Warmer air is lighter and less dense, causing it to rise. As this warm air rises, it creates a region of lower pressure at the surface. Cooler, denser air then rushes in to fill the void, creating a cycle of rising warm air and sinking cool air. This cycle sets up convection currents within the atmosphere.
Convection currents in the atmosphere are a major driving force behind the formation of winds. As warm air rises at the equator due to the Sun's heating, it creates a low-pressure area near the surface. Cooler air from higher latitudes flows in to replace the rising warm air, creating wind patterns. These wind patterns are known as the trade winds near the equator, prevailing westerlies in mid-latitudes, and polar easterlies near the poles.
Additionally, the rotation of the Earth (Coriolis effect) influences the direction of these winds, causing them to curve rather than blow in a straight line. This effect leads to the development of distinct wind belts and circulation patterns around the Earth.
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Identify when genetic recombination occurs in meiosis. Enter your answer in the space provided
Genetic recombination occurs during the Prolonged Prophase of Meiosis I.
What is genetic recombination?Genetic recombination occurs during the Prolonged Prophase of Meiosis and it is the process in which deoxyribonucleic acid (DNA) are broken into pieces and this piece recombines to form a new combinations of alleles.
This recombination is what leads to creating genetic diversity.
Therefore, Genetic recombination occurs during the Prolonged Prophase of Meiosis I.
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The genetic recombination occurs in meiosis during the stage of Prophase I.
What do you mean by Genetic recombination?
Genetic recombination may be defined as the conditions when the molecules of the DNA exchange their genetic material with each other.
This process of genetic recombination also known as crossing over, which is responsible for the genetic diversity among individuals.
Genetic recombination occurs when homologous chromosomes are arranged in pairs and interchange the segments of the DNA.
Therefore, genetic recombination occurs in meiosis during the stage of Prophase I.
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What are the strengths and weakness of gel electrophoresis ?
Answer:
Hello.
• gels can melt during electrophoresis, the buffer can become exhausted, and different forms of genetic material may run in unpredictable forms.
• And the strengths could be that it separates based on size, it is relatively easy to do.
6. Multiple genes interact to determine the phenotype.
7. Two alleles are dominant, resulting in offspring that show both phenotypes.
8. One gene has several different forms, resulting in more than two phenotypes.
9. Two alleles are neither completely dominant nor completely recessive, resulting in a phenotype that is a combination of the two
Answer:
6.polygenic traits
7.codominance
8.multiple alleles
9.incomplete dominance
Explanation:
because i did it in savvas and i got it right.
The phenotype of an organism is influenced by the interactions of several genes. This implies that the organism's physical traits are governed by the interplay of several genes that it received from its parents.
When two alleles, or gene forms, are dominant, the dominant allele determines the phenotype of the progeny. This means that even if the other gene is recessive, the progeny will exhibit both traits if one of the alleles is dominant.
Sometimes a gene can take on several forms, producing more than two phenotypes. It is referred to as polygenic inheritance when more than one allele of a single gene affects the phenotype. Other times, two alleles are neither fully dominant nor fully recessive.
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Which term describes the idea that Earth’s landforms change at a constant, steady rate?
A condition or event in the environment is called a
stimulus
O homeostasis
O reproduction
O species
Answer:
A
Explanation:
homeostasis
For which of the following reasons does a 3-column organizer help you retain
information from a text?
A. It gives you a category
for placing extra information.
O B. It provides you with a
study guide for vocabulary.
O C. It visually organizes the notes you take while reading.
O D. It keeps you focused on your purpose for reading.
Can someone help
hello m'y name is ariel going to scool
Answer:
C. It visually organizes the notes you take while reading.
Explanation:
Match each example given to the type of scientific concept.
theory
observation
hypothesis
law
The outer layer of the Earth is
divided into plates that move
due to convection currents
under the surface.
arrowBoth
If the amount of daylight
increases plant growth, then
plants will have higher rates
of growth during the summer.
arrowBoth
For every action or force
in nature, there is an equal
and opposite reaction.
arrowBoth
Answer:
Theory
The outer layer of the Earth is divided into plates that move due to convection currents under the surface.Hypothesis
If the amount of daylight increases plant growth, then plants will have higher rates of growth during the summer.Law
For every action or force in nature, there is an equal and opposite reaction.If you are to conduct a DNA analysis using a blood sample which of the blood components will you use
1.) Red Blood Cells
2.) White Blood Cells
3.) Plasma
4.) Platelets
If you are to conduct a DNA analysis using a blood sample which of the blood components will you use
Options :-1.) Red Blood Cells
2.) White Blood Cells
3.) Plasma
4.) Platelets
Answer:-Option 2.) White Blood Cells
Explanation:- Red Blood Cell(RBC) , Plasma , Platelets lack DNA White Blood Cell (WBC ) only have DNA RBC lack nucleus to make space for O2 as the work is to carry O2 with help of hemoglobin Platelets are the cell fragments of the large cells they help in clotting so too lack nucleusPlasma is the fluid part of the blood. so it contain water in its most part and too lack DNA bez plasma don't contain any cells WBC are the only cells which have well defined nucleus with DNA in above mentioned optionsthe blanks (not words).
A cell has 6 chromosomes during G1. During G2 it has
How many chromatids and
strands of DNA?
Answer:Neuronal cells in G2 phase demonstrate tetraploid (4N) DNA content or, more precisely, possess a nucleus with 46 replicated chromosomes.
Explanation:In the G1 phase, there are 12 chromosomes. In the S-phase of the cell cycle, the amount of DNA gets doubled. There is doubling of the chromatids but the chromosomes number remains same. The number of chromosomes in the G2 phase will be same as 12 chromosomes and the number of chromatids will be 24.
Please someone help me with these.
What happens in the light reaction of photosynthesis?
What happens in the dark reaction of photosynthesis?
What five factors affect photosynthesis and its rate? How?
Answer: The light reaction is the initial stage of photosynthesis which traps light energy to produce ATP and NADPH, whereas dark reaction is the second step of photosynthesis which utilizes the energy from ATP and NADPH to produce glucose.
Explanation: I hope this helps you:)
Read the article and use the information to answer the following question. Somatotypes What are three types of body shapes that can result from the structure of a skeleton?
Answer:
Ectomorphs (tall and thin)
Mesomorphs (shorter and muscular)
Endormorphs (apple or pear-shaped)
Explanation:
When we compare the gravitational force between two objects, which of the following charecteristics of the objects should we consider
A Mass
B Volume
C State of matter
D Shape
How do biotechnologists amplify DNA in order to perform genetic testing?
Answer:
A technique used to amplify, or make many copies of, a specific target region of DNA.
Explanation:
When two alleles are dominant and both are expressed in an individual, what kind of non-Mendelian inheritance is that?
Answer:
Codominance
Explanation:
This case happens when both alleles are dominant then they will be equally expressed in phenotype
I can give you an example to understand this topic such as blood type: in the type AB both A and B are codominant = 2 dominant alleles are expressed together
Explain why human cells undergo mitosis.
Answer:
to make more diploid cells.
Explanation:
It works by copying each chromosome, and then separating the copies to different sides of the cell. That way, when the cell divides down the middle, each new cell gets its own copy of each chromosome.
Answer:
The purpose of mitosis is to make more diploid cells.
Explanation:
It works by copying each chromosome, and then separating the copies to different sides of the cell. That way, when the cell divides down the middle, each new cell gets its own copy of each chromosome.
Enzymes have an attachment site called the __ site for the __ to join
Answer:
Enzymes have an attachment site called the active site for the substrate to join. Consequently, what is catalytic site of enzyme? In biology, the active site is the region of an enzyme where substrate molecules bind and undergo a chemical reaction.
Enzymes have an attachment site called the active site for the substrate to join. Enzymes then convert the substrate into a product and release it from the active site.
What is an enzyme, and how does it function?
The enzyme has an active site where the substrate binds and then forms a noncovalent bond with the enzyme. As a result of this binding, the product is formed by different modifications.
The enzyme has another site apart from the active site, and that is called the allosteric site. This site is occupied by regulators that can regulate the enzyme by enhancing or suppressing the enzyme's activity.
The enzyme is made up of amino acids by the process of translation, but not all enzymes are made up of amino acids. Apart from the polypeptide chain, there are molecules such as zinc, magnesium, etc. at the catalytic site to help enzymes make the product.
Hence, enzymes have an attachment site called the active site for the substrate to join.
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In eukaryotic cells, where does the basal transcription apparatus bind?.
Answer:
Located immediately upstream of the eukaryotic promoter, DNA sequences to which the basal transcription apparatus binds. Regulatory promoter DNA sequence located immediately upstream of the core promoter that affects transcription; contain consensus sequences to which transcriptional regulator proteins bind.
Explanation:
Does this answer your question?
In which system of the human body are the red blood cells and white blood cell found?
Answer:
In the circulatory system
Explanation:
The circulatory system of the body is where all blood cells are found.