The oxygen generated by photosynthesis is simply a by-product formed during the production of ATP and carbohydrates because oxygen emerges as a product that is not used by plants to further metabolic processes instead of carbohydrates and ATP.
What is photosynthesis?Photosynthesis can be defined as a natural process in which plants used carbon dioxide and sun light as reactants in order to generate simple carbohydrates such as glucose and also ATP, which is the energy coin of the cells.
During photosynthetic pathways oxygen is produced but this element is not used after its production, thereby it can be considered as a byproduct of this pathway.
Therefore, with this data, we can see that photosynthesis can produce oxygen as a byproduct which is fundamental to sustaining the life of aerobic heterotrophic animals and humans because oxygen is a reactant required for cellular respiration in aerobic organisms.
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which of the following is/are true of red blood cells? question 16 options: their anatomical name is also erythrocyte. in their mature form, they do not contain a nucleus. immature erythrocytes that may still contain fragments of organelles are called reticulocytes. they contain one molecule of hemoglobin. all of the above are true.
All of the above statements are true about red blood cells.
Anatomical names are the names given by science professionals when referring to certain body parts, tissues or cells of an organism. The anatomical name for red blood cells is erythrocytes.
Erythrocytes do not contain a nucleus in their mature form and are responsible for the transport of oxygen to all parts of the body. Hemoglobin is the molecule in the red blood cells with which the oxygen binds and forms oxyhemoglobin for transportation.
Reticulocytes can be described as immature red blood cells that have the potential to form mature red blood cells. They are formed in the bone marrow and may contain small segments of organelles.
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The definition of species is that membersA.can survive and reproduce B.can produce viable offspringC. Have similar traits and habitsD. Have DNA that is at least 75% the same
The definition of species is that the members are able to reproduce having viable offspring. Being a group of living organisms with similar characteristics and capable of exchanging genes and produce viable offspring.
which of the following statements is false? group of answer choices dna replication proceeds in only one direction around the bacterial chromosome multiple replication forks are possible on a bacterial chromosome dna polymerase joins nucleotides in one direction (5' to 3') only the leading strand of dna is made continuously the lagging strand of dna is started by an rna primer
Nucleotides can only be joined in one way (5' to 3') by DNA polymerase.
DNA synthesis or replication takes place during the S phase of a cell cycle, which happens during interphase and comes before mitosis or meiosis.
Describe DNA replication with an example.The act of copying and duplicating a DNA molecule is known as DNA replication. The procedure is run in a semi-conservative manner.
Before dividing, cells must copy their DNA. This promotes successful inheritance of genetic features by giving each daughter cell a copy of the genome. The fundamental mechanism of DNA replication is similar across all organisms, making it a crucial operation.
Three models—conservative, semi-conservative, and dispersive—were put out for DNA replication. According to the conservative way of replication, freshly generated daughter strands and the parental DNA should both remain together.
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What is peristalsis?
A
an enzyme that helps food dissolve
B
nutrients that are absorbed by organs
C
an organ that stores waste until it is removed from the body
D
muscle contractions that move food down the digestive tract
Answer:
D
muscle contractions that move food down the digestive tract
Explanation:
Directly from definition: Peristalsis is a series of wave-like muscle contractions that move food through the digestive tract.
The pituitary gland, sometimes called the "master gland," carries out instructions from the ________.
The pituitary gland sometimes called the "master gland," carries out instructions from the hypothalamus.
What exactly is the hypothalamus and what does it do?Hypothalamus is a structure located there. It acts as the main link between your endocrine and neurological systems. Your body maintains homeostasis, a stable state of equilibrium, thanks to the hypothalamus. The primary job of the hypothalamus is to respond to these signals and maintain the internal balance and stability of your body. Your hypothalamus serves as your body's "smart control" coordination center, similar to how your home may have a system to flawlessly coordinate all activities. The hypothalamus helps manage your:
1)Body temperature.
2)Blood pressure.
3)Hunger and thirst.
4)Sense of fullness when eating.
5)Mood.
6)Sex drive.
7)Sleep.
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Is broccoli biotic or abiotic
Answer:
Biotic
Explanation:
broccoli is biotic because it can grow, reproduce, produce and use energy, if something is not living like rocks and dirt it would be abiotic.
Answer:
Biotic.
Explanation:
Broccoli is a crop, which means it is biotic, due to the fact that it is a living substance.
Question 2 of 5
Which statement describes the movement of matter in the rock cycle?
O A. Water gets heated by sunlight and evaporates.
OB. Magma rises to the surface and solidifies.
OC. Living things take in and give off water.
O D. People burn fuels that contain carbon and release CO₂.
Answer:
OC
Explanation:
Magma is molten matter therefore, when magma rises and solidifies it forms solid matter.
if anybody helps me on this i will give you brainliest and extra points please help this is due soon and i really can’t miss this.
Answer:
1) (20+40) - 15 = 45 N [to the right]
2) 19-7= 12 N [to the left]
3) (45 +3) - (35+13) = 0 N [no direction as net force is zero]
4) 39 +11 =50 N [to the right]
Explanation:
If arrows are in the same direction, forces will be added
if arrows are in different direction, forces will be subtracted.
add forces is the same direction and subtract the forces in the opposite direction from the added value
Force cannot be negative
Advice: use brackets to make sure the math is correct. Brackets also help to understand better
For the direction, the net force will go in the direction of greater force
Station 4-The Epidermis
rows of cells thick?
Which part of the brain is involved in initiating, or turning on, the desire to eat?.
Answer: lateral hypothalamus
Explanation: A part of the hypothalamus involved in initiating, or “turning on,” eating. ventromedial hypothalamus: A part of the hypothalamus involved in regulating feelings of satiety. neurotransmitters and hormones are involved in regulating hunger and appetite.
Airplanes reach cruising altitudes at the lower part of the Earth's stratosphere. This portion of the atmosphere is made up mostly of
and
Nitrogen and oxygen are found in the Earth's stratosphere, which is the second-lowest layer of the atmosphere. These are the two most common gases throughout the whole atmosphere.
What is the stratosphere?A part of the atmosphere on Earth is called the stratosphere. As you ascend, it is the second layer of the atmosphere. The stratosphere is immediately followed by the lowest layer, the troposphere.
At medium latitudes, the floor of the stratosphere is around 10 kilometers (6.2 miles, or about 33,000 feet) above the surface. At a height of 50 km, the stratosphere's top is located (31 miles). The height of the lower stratosphere changes according to latitude and season.
Therefore, Nitrogen and oxygen are found in the Earth's stratosphere, which is the second-lowest layer of the atmosphere. These are the two most common gases throughout the whole atmosphere.
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PLEASE HELP!! If there is an if number of water molecules inside and outside the cell, how will the water move?
Out of the cell only
It will not move
Into the cell only
Into and out of the cell in equal amounts
Osmosis refers to water motion. 1) If there are more water molecules inside the cell, water moves out of the cell only. 2) If there are more water molecules outside the cell, water moves into the cell only. 3) If the number of water molecules inside and outside the cell are the same, water moves into and out of the cell in equal amounts.
Since I do not have the concentration of water inside and outside the cell, to answer this question I will porpose three scenarios. But first, let us review the osmosis concept.
What is osmosis?Osmosis is a simple passive transport referred especially to water. These molecules can move between dilutions of different concentrations until reaching equilibrium.
Water molecules can freely move through a membrane from the most diluted side to the more concentrated one.
So, there are three possible scenarios,
1) There are more water molecules inside the cell than outside the cell.
This means that
the cell interior is more diluted than the cell exterior.the cell exterior is more concentrated than the cell interior.Water molecules tend to move outside the cell until the number of molecules in the cell's interior and exterior are the same.
2) There are more water molecules outside the cell than inside the cell.
This means that
the cell exterior is more diluted than the cell interior.the cell interior is more concentrated than the cell exterior.Water molecules tend to move inside the cell until the number of molecules in the cell's interior and exterior are the same.
3) The number of water molecules inside and outside the cell is the same.
In this case, water molecules will move into and out of the cell in equal amounts.
Now, you should check the number of water molecules in your example, and choose the correct option following these scenarios.
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Exponential population growth occurred:
1) after the last Ice Age
O2) during the outbreaks of bubonic plague
3) after the Industrial Revolution
4) all of the above
Exponential population growth occurred: 2) during the outbreaks of bubonic plague
What three consequences did the bubonic plague have?Buruli ulcer: The bubonic plague typically takes 2 to 8 days to incubate. Patients experience weakness, one or more enlarged, painful lymph nodes, headache, chills, and fever (called buboes). This type typically develops as a result of a flea bite.
According to a recent study, those who managed to survive the sickness lived longer in Europe. People had a decreased probability of passing away at any age after the first plague epidemic compared to before, according to an examination of bones from London cemeteries from before and after the disease.
The Black Death, which killed almost 40% of Europe's population between 1347 and 1352, was the worst demographic shock in the continent's history.
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What is the name for the discs (inside of the chloroplast) where the Light Dependent Reaction takes place?
1. Chlorophyll
2. Thylakoid
3. Chloroplast
4. Stroma
Thylakoid is the name for the discs (inside of the chloroplast) where the Light Dependent Reaction takes place.
Light dependent reaction occurs in the disc within the chloroplast called thylakoid .Thylakoids contain chlorophyll, the molecule essential for photosynthesis. In the thylakoid membrane, there are two photosystems (I and II).They from the network of disc called that are arranged in a stack called grana. These structure plays crucial role in converting sunlight into chemical energy .
Grana are the specialized structure that have specific arrangement in plants . As they are connected by stromal lamellae, extensions that run from one granum, through the stroma, into a neighboring granum.
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The Florida panther was once considered to be a subspecies of cougars. Current scientists, however, have studied the Florida panther and removed the subspecies classification
Which of the following would explain why the classification of the Florida panther changed?
A.) New genetic evidence suggests a much closer relationship between the Florida panther and other cougars
B.) Advanced technologies have shown a large difference in cell structure between the Florida panther and other cougars.
C.) Study of their embryos shows major differences in the development of the Florida panther fetus when compared to other cougars
D.)Shared physiological features
between the Florida panther and other cougars were also found in newly discovered organisms in the world.
Which scientist was not involved in solving the mystery of the configuration of the DNA molecule? Question 8 options: Francis Crick Rosalind Franklin Robert Hooke Erwin Chargaff
Answer: Robert Hooke
Explanation: I already take the test
Robert Hooke was not involved in solving the mystery of the configuration of the DNA molecule.
Robert Hooke saw little, box-like cavities, which he depicted and referred to as cells. He had stumbled across plant cells! Hooke's finding laid the groundwork for cell theory by revealing cells as the tiniest constituents of life.
DNA Molecule- Nucleotides are chemical building units that make up DNA. A phosphate group, the sugar group, and one of four different nitrogen bases make up these building components. Nucleotides are joined together into chains, with both the sugar and phosphate groups switching places, to create strands of DNA.
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explain how heavy poaching shifted the population to be more tuskless
Decades of poaching and overhunting of large-tusked elephants could result in generations of elephants with small tusks or no tusks at all.
According to Poole, in heavily poached populations, the proportion of tusked animals in the population increases as poaching continues.
“The baseline tusk loss in a population can be as high as 4%, but over time the rate could increase to 60% in older animals as more tusked elephants are killed. there is potential,” she explains.
Tiny tusks aren't the only genetic impact African (and Asian) elephant populations face from heavy poaching. Over the decades, researchers have documented an increasing proportion of tuskless males and females in many elephant populations.
“Most populations will always have tuskless elephants because elephants have a sex-associated tuskless gene,” Poole says. “The males need tusks to fight, so tuskless males are chosen, and there are very few tuskless males. They don't pass on genes as often."
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Describe one source of genetic variation in meiosis and explain, in your own words, how it increases genetic variation.
One source of genetic variation in meiosis is Recombination or crossing over.
A zygote is formed when one gamete from each parent combines fertilization. In meiosis, each gamete has a unique set of DNA because of recombination and independent selection. The resulting zygote is a one-of-a-kind creation as a result of recombination.
In prophase I, homologous chromosomes, one from each parent, pair along their lengths, gene by gene, resulting in recombination or crossing over. Chromosomes break and then rejoin, exchanging some of their genes. The combination of genes on the chromosomes is now novel.
During meiosis, the process of chromosomes moving at random to separate poles is called an independent assortment. After meiosis, a gamete will have 23 chromosomes, but independent assortment means that each gamete will have one of many different chromosome combinations.
This rearranging of genes into one-of-a-kind combinations raises a population's genetic variation and explains the variation between siblings with the same parents.
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The backbone of DNA and RNA is composed of ___
. DNA is double-stranded due to interactions between adenine, cytosine, guanine, and thymine, which are _____
. Uracil is a ___
The backbone of DNA and RNA is composed of sugar molecules. DNA is double-stranded due to interactions between adenine, cytosine, guanine, and thymine, which are nitrogen bases. Uracil is a nitrogen base found in RNA.
What are DNA and RNA?DNA and RNA are nucleic acids that are composed of linear chains of nucleotides. In RNA, the Uracil nitrogen base in the nucleotide sequence replaces the Thymine nitrogen base found in the DNA sequence. Both nucleic acids contain pentose sugar, i.e., ribose in RNA and deoxyribose in DNA.
Therefore, we can conclude that DNA and RNA are formed by nucleotides that contain different nitrogen bases and sugar pentose molecules.
Complete question:
Fill in the blank. The backbone of DNA and RNA is composed of ___. DNA is double-stranded due to interactions between adenine, cytosine, guanine, and thymine, which are _____. Uracil is a ___
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The pressure in the lungs of a student before and during the start of a volleyball match was recorded. The results are shown in Fig. 2.1. ,
(i)Use the results in Fig. 2.1 to calculate the breathing rate before the start of the match.
Express your answer to the nearest whole number.
(ii)Use the results in Fig. 2.1 to describe how the pattern of breathing during the match is
different from the pattern of breathing before the match starts.
pls answer asap
The breathing rate of the student before the start of the match is 11 breaths per minute.
The breathing rate of the student increases during the match compared to before the match.
What is breathing rate?The breathing rate or respiration rate is defined as the number of breaths taken per minute.
The normal resting respiration rate for an adult is 12 to 20 breaths per minute.
Based on the figure provided, the number of breaths per second before the match is 2 breaths per 11 seconds.
In 1 minute or 60 seconds, breathing rate = 11 breaths per minute
Also, the student's lung pressure and the number of breaths per minute increase during the match.
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8. when stuff binds to proteins, the proteins change shape. when the action potential reaches the sarcomere, it releases calcium which binds to the "bodyguards", allowing the myosin to bond to atp and stretch out to connect with the actin. with its energy spent, the myosin releases the atp and detaches from the actin, only to bind to another atp and repeat the process. this process is called the sliding filament model of muscle contraction.
True, the process is called the sliding filament model of muscle contraction.
According to the sliding filament theory, muscle proteins slide past one another to produce movement during muscular contractions. The sliding filament theory postulates that during muscle contraction, the actin (thin filaments) and myosin (thick filaments) of muscle fibers glide past each other while remaining at essentially constant lengths. A protein called myosin transforms ATP (chemical energy) into mechanical energy, causing movement and push. T
his motion causes the muscles to contract and non-muscle cells, like those in the mitosis and meiosis, to move (cell division). Additionally, the actin-myosin interaction and actin polymerization are what cause a cell to move across a surface. When troponin molecules link to calcium ions in filaments, actin filaments' myosin-binding sites become visible, promoting bridge construction. ATP serves as an energy source and powers this process. Myosin molecules' heads undergo ATP hydrolysis, changing their shape and allowing them to bind to actin filaments.
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The cells of all living things contain proteins which are regulated by the of DNA
The cells of all the living things contain proteins which are regulated by the sequence of DNA present in cell. The DNA contain nitrogenous bases which decides the amino acids which makes the DNA.
What is Protein synthesis?Protein synthesis is known as translation. In this process, the amino acids which are coded by specific sequences in DNA polymerize to form proteins. This process takes place in the ribosome of cell.
Protein synthesis involves the binding of mRNA and tRNA on the ribosomes of rough endoplasmic reticulum which facilitates polymerization of amino acids specific to the sequence of DNA present in the nucleus.
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how is matter conserved during photosynthesis?
Answer: I hope this helps. Let me if this is right or wrong Have a good day
Explanation:
The law of conservation of matter is connected to photosynthesis because matter like carbon dioxide and water go into the plant and, with the help of energy, the plant creates a new form of matter -- sugar, or glucose, and releases the oxygen into the atmosphere that is formed from the carbon dioxide.Matter is conserved during the process of photosynthesis and cellular respiration by converting the raw materials into products during photosynthesis and again release the raw materials with the help of break down in the process of respiration.
If the conservative model had been correct, how many generations of bacterial cell division would have had to pass before meselson and stahl would have observed evidence of a band in the cscl gradient corresponding to a hybrid dna molecule containing both 14n and 15n?.
If the conservative model had been correct, No generations; a hybrid would never form had to pass before meselson and stahl would have observed evidence of a band in the cscl gradient corresponding to a hybrid dna molecule containing both 14n and 15n.
What is the Meselson and Stahl experiment about?
The Meselson and Stahl experiment is an experiment in 1958 by Matthew Meselson and Franklin Stahl. Meselson and Stahl through their experiment demonstrated that DNA replicated semi-conservatively, meaning that each strand in a DNA molecule serves as a template for synthesis of a new, complementary strand
Here's the complete question:
If the conservative model had been correct, how many generations of bacterial cell division would have had to pass before Meselson and Stahl would have observed evidence of a band in the CsCl gradient corresponding to a hybrid DNA molecule containing both 14N and 15N?
A) 1 generation
B) 4 generations
C) More than 10 generations
D) No generations; a hybrid would never form.
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An organism that cannot synthesize organic compounds from inorganic substances and therefore must take in organic food is called a consumer or a.
An organism that cannot synthesize organic compounds from inorganic substances and therefore must take in organic food is called a consumer or a Heterotrophs.
Heterotrophs An organism that consumes other plants or animals for energy and nutrients is referred to as a heterotroph. The word is derived from the Greek terms "nourishment" and "hodos" for "other." Based on how they receive their energy and nutrients, organisms are divided into two general categories: heterotrophs and autotrophs.
Heterotrophs are defined as living things that feed on other creatures. The three different categories of heterotrophs include herbivores, carnivores and omnivores, and detritivores. Fish, birds, insects, humans and all other mammals, as well as bacteria and fungus, are examples of heterotrophs.
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In a eukaryotic cell, secreted proteins and integral plasma membrane proteins are synthesized by___.
In a eukaryotic cell, secreted proteins and integral plasma membrane proteins are synthesized by ribosomes docked to the rough ER.
A Eukaryotic Cell is what?
Large and sophisticated creatures are made up of eukaryotic cells, which have a nucleus surrounded by a nuclear membrane. Eukaryotic cells are found in fungi, plants, mammals, and protozoa. They are categorized as belonging to the Eukaryota kingdom.
They can sustain diverse conditions within a single cell, enabling them to perform numerous metabolic processes. They are able to grow several times larger than prokaryotic cells because of this.
Eukaryotic Cell Characteristics
The following are the characteristics of eukaryotic cells:
The nuclear membrane encloses the nucleus in eukaryotic cells.
the mitochondria of the cell.
In a eukaryotic cell, the locomotory organs are flagella and cilia.
The outermost layer of eukaryotic cells is called a cell wall.
The process of mitosis is how cells divide.
The cytoskeleton is present in eukaryotic cells.
All of the genetic information is contained in a single, linear DNA found in the nucleus.
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Can you tell me the name of one ongoing scientific study in the world for the betterment of human lives??
Answer:
Research of genes that help mice live longer
Explanation
https://www.sciencedaily.com/releases/2022/10/221012194015.htm
This link goes into detail about genes that affect mice's lifespans, and could be used in research to increase humans' lifespans. If not increasing lifespan, it could also help us find out what we can do to improve our own living situations. The study models what happens in people and could affect life as we know it.
The human stomach is an organ that helps us digest food. The stomach is one of many organs involved in the process of digestion. Others include the esophagus, small intestine, pancreas, and gall bladder. What name is given to a set of organs that work together to perform a specific function?.
Answer:
Organ System
Explanation:
A group of organs that work together to perform a specific function is called an organ system.
Answer:
organ systems
Explanation:
because they have different ways in digesting food and when they've been brought to work together they help your body to function
In chicken feather color black is incomplete dominant to white. The intermediate is Blue.
A blue feathered chicken is crossed with a white feathered chicken.
If they produce 8 chicks, how many will have Blue feathers?
a.0
b.4
c.8
d.2
Answer:
about 4
Explanation:
Christina is worried that her traits are completely determined by the genes passed on to her from her parents. Which of these is least likely to be affected by heredity?.
Option a Christina is worried that her traits are completely determined by the genes passed on to her from her parents. personality likely to be affected by heredity.
The transfer of traits from one set of parents to another is known as heredity, often known as inheritance or biological inheritance. Whether through reproduction, the offspring cells or organisms acquire the genetic makeup of their parents. Genes, also known as alleles, can occur in multiple forms and are responsible for determining hereditary features. Each gene in our cells has two copies (with the exception of genes located on chromosomes). Both the sperm and the egg contribute to one of the copies. These two copies, also known as alleles, may not be identical in a single person. We refer to an individual as homozygous for a gene if the two copies of the gene are identical. A gene is heterozygous if its two copies are distinct.
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