Answer:
It must be large particles move into cells, unless there is another option
Explanation:
Passive transport does not require energy, so the first one is incorrect
Particles are moved from areas of high concentration to an area of low concentration, so the last one is also incorrect
So it should be large particles can move into cells, unless of course there is another option
Answer:
The correct answer is A " particles move randomly "
Explanation:
16. The products that plants produce in photosynthesis are different from the products
that animals and some bacteria produce in cellular respiration. The products of
photosynthesis are-
Answer:
During the process of photosynthesis plants break apart the reactants of carbon dioxide and water and recombine them to produce oxygen (O2) and a form of sugar called glucose (C6H12O6).
Explanation:
When a plastic rod is rubbed with a wool cloth, the wool acquires a positive charge. What is the best explanation
for this effect?
protons are transferred to the rod
protons are transferred to the cloth
electrons are transferred to the cloth
electrons are transferred to the rod
When a rod is rubbed against a piece of cloth, negative charges that are electrons are transferred from one body to another. The body reciprocates as a result it loses electrons and becomes positively charged and the body which gains electrons becomes negatively charged. (Option d)
Hence, when woollen cloth is rubbed against the plastic, both wool and plastic get electrified due to certain friction produced while rubbing. So, plastic has greater electron affinity that means ability to attract electrons as compared to wool, hence, plastic acquires a negative charge and wool acquires being positively charged.
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What are potential problems in the cell cycle if the different cyclin molecules do not interact correctly?
Answer:
Interactions between cyclins and cyclin-dependent kinases. Disruptions to the cell cycle may result in cancer and/or programmed cell death (apoptosis).
WILL GIVE BRAINIEST
Malik is trying to identify two mystery substances. Which properties will best help him identify the substances?
A.
physical properties
B.
chemical properties
C.
both
D.
neither
Complete the following sentence.
A qualified landscape architect will usually hold a college degree, may hold an advanced degree, and will often hold a ________ bestowed by a state board.
Answer:
bachelor's degree : ) it says my answer needs to be longer for some reason so here you go I guess lol
What is the phenotypic ratio of BLUE to RED for the flowers in this Punnett square?
88
80
A
4:1
B
1:2:1
С
0:4
D
4:4
Answer:
D
Explanation:
The phenotypic ratio of blue to red flower is 4:4.
88÷80×4= 4:4
which class of antidepressant drugs help regulate mood by allowing certain neurotransmitters to remain in the brain's synapses?
Answer:
Selective serotonin reuptake inhibitors (SSRIs)
1. fatty acids2. amino acids3. phospholipids4. hydrogen5. peptide6. tertiary7. secondary8. rough endoplasmic reticulum9. ribosome10. Golgi apparatus11. vesicle
The production of antibodies inside the lymphocytes starts at the ribosome (organelle) by joining amino acids together, creating peptide bonds, and forming the primary level structure polypeptide. The polypeptide bends and folds tertiary in the Golgi apparatus (organelle), to form the next level of structure. For instance, the secondary level of structure is formed by hydrogen bonds to create alpha helix or beta-pleated formations.
In order for an antibody to be released into the blood, a fully formed antibody will move from rough endoplasmic reticulum (organelle) to another organelle named Golgi apparatus to sort and be processed for shipment out of the cell. Antibodies transport from organelle to organelle and to the plasma membrane in a vesicle, which is made out of fatty acids-phospholipids.
1. fatty acids
2. amino acids
3. phospholipids
4. hydrogen
5. peptide
6. tertiary
7. secondary
8. rough endoplasmic reticulum (organelle)
9. ribosome (organelle)
10. Golgi apparatus (organelle)
11. vesicle
A couple of questions about soil and agriculture in the image above. Help if you want
Answer:
1 Land resource is important because humans not only live but also perform all economic activities on land. Besides, land also supports wild life, natural vegetation, transport and communication activities.
2 Mineral. The largest component of soil is the mineral portion, which makes up approximately 45% to 49% of the volume. ...
Mineral. The largest component of soil is the mineral portion, which makes up approximately 45% to 49% of the volume. ... Water. Water is the second basic component of soil. ...
Mineral. The largest component of soil is the mineral portion, which makes up approximately 45% to 49% of the volume. ... Water. Water is the second basic component of soil. ... Organic matter. Organic matter is the next basic component that is found in soils at levels of approximately 1% to 5%.
Gases.
Microorganisms.
3 Loam soils generally contain more nutrients, moisture, and humus than sandy soils, have better drainage and infiltration of water and air than silt and clay-rich soils, and are easier to till than clay soils.
4 Soil organisms represent a large fraction of global terrestrial biodiversity. They carry out a range of processes important for soil health and fertility in soils of both natural ecosystems and agricultural systems.
5 Soils provide anchorage for roots, hold water and nutrients. Soils are home to myriad micro-organisms that fix nitrogen and decompose organic matter, and armies of microscopic animals as well as earthworms and termites. ... Soil plays a vital role in the Earth's ecosystem. Without soil human life would be very difficult.
HOPE THIS WILL HELP YOU IF NOT SO SORRY :))
after one frog's heart has been stimulated, an extract of fluid from that heart can make a second frog's heart beat faster. what conclusion did otto loewi draw from these results? a. transmission at synapses is a chemical event b .the sympathetic and parasympathetic nervous systems are antagonistic. c. transmission at heart muscle synapses is electrical. d. hormones facilitate the actions of the nervous system.
The conclusion Otto Loewi drew from these results is that: (a) transmission at synapses is a chemical event since the fluid from one frog's heart after being stimulated made the second frog's heart beat faster.
A synapse is a site at which neurons connect with other neurons or effectors, such as muscle cells or gland cells, in the nervous system. This transmission may occur through chemical or electrical signals, which are regulated by specific enzymes and receptors controlled by different hormones in the body. Chemical synapses allow for the release of neurotransmitters by the axon terminal of one neuron, which binds to the receptors of the next neuron or effector to promote or inhibit nerve impulses, muscle contraction, or gland secretion.
In contrast, electrical synapses allow for the direct flow of ions through the gap junctions between the plasma membranes of two neurons, allowing for the rapid transmission of electrical impulses without the need for neurotransmitters or receptors. Loewi, in his classic experiment in 1921, demonstrated that chemical communication occurs between neurons at synapses. The frog's hearts were used in the investigation, where he stimulated one frog's heart, and an extract of fluid from that heart was transferred to a second frog's heart.
It was observed that the second frog's heart started beating faster, showing that the chemical messenger was present in the fluid from the first frog's heart. Thus, Loewi concluded that transmission at synapses is a chemical event, which led to the concept of neurotransmitters and the characterization of acetylcholine as the first neurotransmitter.
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Describe the interaction between the corn, water, soil, and air in the image. How does energy flow?
The food chain and food web serve as conduits for the energy flow. Plants, who are the primary energy producers in an ecosystem.
What is the mechanism of energy flow in an ecosystem?The autotrophs that absorb energy from the sun are an excellent example of how energy moves through an ecosystem.
Utilize their chloroplasts to accumulate sunlight, which is then partially altered into chemical energy during photosynthesis.
Herbivores eat the autotrophs thereafter, converting the plant's energy into fuel for themselves. Then, carnivores consume the herbivores, followed by other carnivores consuming the carnivores.
Therefore, energy flow in an ecosystem is connected by different trophic level.
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Do not write
outside the
box
9
Figure 12 shows exchange surfaces in the lungs.
Figure 12
Oxygen
Cell at lung surface
Blood vessel
Red blood cell
(transports oxygen)
09
1
Explain how one feature shown in Figure 12 increases the rate of oxygen uptake
by the blood.
[2 marks]
Answer:
Red blood cells - help in transporting oxygen other all the body parts. _ halp to increase the tamprecature in the all the body parts
keeping your body temperature at an average of 98.6 °F is an example of what?
Answer:
Thermoregulation
Explanation:
The body can maintain its temperature within certain boundaries, even when the surrounding temperature is very different. Hope i was able to help
People in the Middle Ages were beginning to question:
Drama
Authority
Scientists
How much carbon-14 remains at the end of five half-lives? Explain your
reasoning.
Answer:
1/32 of the original amount.
Explanation:
Each half-life is half of the prior life so:
1st half-life = 1/2
2nd half-life = 1/4
3rd half-life = 1/8
4th half-life = 1/16
5th half-life = 1/32
Answer: 1/32
Explanation: because you ask how much carbon-14 remains at the end of five half-lives! and you told me Explain my reasoning. your welcome
Warm-Up
Type your response in the box.
Think about the different types of animals you’ve seen throughout your life. What characteristics do all of these animals share?
Answer:
snake crocodile
Explanation:
they are both reptiles and have a scaly skin and eye shape is similar
Analyze evidence from the lesson regarding the relationship between the structures found in cells and functions carried out by cells related to protein formation and transport or the capture, storage, and usage of energy. Choose a cellular function and make a claim about how structural features of the cell support the function. Use specific examples and details to support your claim.
Answer:
This is vvv
Explanation:
One of the cellular functions is making food/creating energy. Plant cells do this the best as they have chloroplasts that can turn sunlight, water, and carbon dioxide into glucose and oxygen via photosynthesis. This glucose is then turned into usable energy when it is transported to the mitochondria where it is turned with oxygen into carbon dioxide and ATP via cellular respiration. The ATP is taken around the cell and distributed to where it is needed via the Golgi apparatus.
Now don't highlight this part when you copy and paste otherwise they will know for sure;)
One of the cellular functions is making food/creating energy. Plant cells do this the best as they have chloroplasts that can turn sunlight, water, and carbon dioxide into glucose and oxygen via photosynthesis.
What is golgi body?
The relationship between the structures found in cells and functions carried out by cells related to protein formation and transport or the capture, storage, and usage of energy is known as golgi body appratus.
This glucose is then turned into usable energy when it has transported to the mitochondria where it has been turned with oxygen into carbon dioxide and ATP via cellular respiration. The ATP is taken around the cell and distributed to where it is needed via the Golgi apparatus.
Therefore, One of the cellular functions is making food/creating energy. Plant cells do this the best as they have chloroplasts that can turn sunlight, water, and carbon dioxide into glucose and oxygen via photosynthesis.
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The different colors of the frogs represent ___________
Answer:
adaptations to a specific environment
Explanation:
Answer:
their feelings and emotions ot their body temperature
The temperature at which a solid turns to liquid? *
Answer:
a
Explanation:
Answer:
Melting point
Explanation:
It becomes a liquid when the solid reaches the temperature of its melting point.
What are the factors that influence the saltiness of water?
Answer:
Evaporation. Evaporation can only take away water volume, not salt content. Hot air around.
Rivers. Rivers can dilute the salt concentration of an ocean. If there are numerous rivers.
Ocean Currents. Function of Ocean currents are responsible in both increasing and.
Ice Formation. The formation of ice takes away most of the fresh water from the ocean.
Explanation:
Why does neurones contain many mitochondria and many ribosomes?
Answer:
Neurons depend on mitochondria. ATP generation by mitochondrial respiration in the brain consumes 20% of the body's oxygen although the brain is only 2% of the mass of the body (Attwell and Laughlin, 2001). ... Every part of the neuron requires ATP and therefore requires mitochondria to be present.The dendritic processes and spines of neurons are essentially expansions of cytoplasm containing most of the organelles found in the cell body. ... Rough endoplasmic reticulum and ribosomes are present in large but not small dendrites.
The neurones contain many mitochondria and many ribosomes as neurons depend on mitochondria. ATP generation by mitochondrial respiration in the brain consumes 20% of the body's oxygen although the brain is only 2% of the mass of the body.
What are neurons?The neurones contain many mitochondria and many ribosomes as neurons depend on mitochondria. ATP generation by mitochondrial respiration in the brain consumes 20% of the body's oxygen although the brain is only 2% of the mass of the body.
Every part of the neuron requires ATP and therefore requires mitochondria to be present.The dendritic processes and spines of neurons are essentially expansions of cytoplasm containing most of the organelles found in the cell body. Rough endoplasmic reticulum and ribosomes are present in large but not small dendrites.
The outermost part of brain has been known as Dura mater which has been consist of a strong membrane layering and it has been thick located just beneath the skull and vertebral column.
Therefore, the neurones contain many mitochondria and many ribosomes as neurons depend on mitochondria. ATP generation by mitochondrial respiration in the brain consumes 20% of the body's oxygen although the brain is only 2% of the mass of the body.
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Which of the following bacterial structures is invariant i.e. present in all bacteria? a. flagella
b. cell wall c. mitochondria d. all of the above e. neither a, b, orc
The bacterial structure that is invariant, meaning present in all bacteria, is the cell wall (option b).
While many bacteria possess flagella for motility (option a) and some have unique internal structures, all bacteria have a cell wall. The cell wall provides structural support and protection for the bacterial cell, and it is composed mainly of peptidoglycan in most bacteria.
However, it is important to note that the composition and structure of the cell wall can vary between different types of bacteria, such as gram-positive and gram-negative bacteria. In contrast, mitochondria (option c) are not present in bacteria, as they are organelles typically found in eukaryotic cells.
Therefore, option e (neither a, b, or c) is incorrect. The correct answer is option b, the cell wall, which is an invariant structure found in all bacteria. Hence, d is the correct option.
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Which of the following sets of organelles can be found in both eukaryotes and prokaryotes?
nucleus and mitochondria
Golgi body and nucleus
ribosomes and cell membrane
chloroplast and nucleus
Answer:
ribosomes and cell membrane
Explanation:
Prokaryotes are not allow to have nucleus. They have free roaming DNA, so only ribosomes and cell membrane can be both.
•Differentiate between virus and viroids.
Viruses (Virus particles or virions) are usually units consisting of nucleic acids and coat proteins called capsids.
Viroids consist only of RNA, i.e. they contain no protein at all. Except for a few cases, viruses are not surrounded by a membrane.
Answer:
Viruses (Virus particles or virions) are usually units consisting of nucleic acids and coat proteins called capsids. Viroids consist only of RNA, i.e. they contain no protein at all. Except for a few cases, viruses are not surrounded by a membrane.
.
.
.
....
.
..nok nok tera bhai aaya
proved that unpolished rice responsible for beriberi.
The absence of thiamin, or vitamin B1, is one of the causes of beriberi.
What food causes beriberi?According to the National Institutes of Health, beriberi is most prevalent in areas of the world where people consume unenriched, processed white rice, which has a tenth as much thiamine as brown rice.Thiamine deficiency is the cause of the illness beriberi (vitamin B1).In the dry form of beriberi, the long nerves gradually deteriorate, first in the legs and subsequently in the arms, along with muscular atrophy and reflex loss.Most often, alcoholics and those who only consume white rice or other highly refined carbohydrates are at risk for thiamin deficiency, which causes beriberi. Diffuse polyneuropathy, high-output heart failure, and Wernicke-Korsakoff syndrome are among the symptoms.Proved that unpolished rice is responsible for beriberi:
One of the contributing factors to beriberi is the lack of vitamin B1 or thiamin. Asians consumed polished rice (without nutrient-rich bran or germ) during this time. Christiaan Eijkman, a Dutch physician, and pathologist discovered that feeding unpolished rice to chickens helped prevent beriberi.
Therefore, feeding unpolished rice to chickens helped prevent beriberi.
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the nontemplate strand of a portion of a gene reads 5′-ttcactggttca’3. what is the sequence of the resulting transcript for this portion?
The resulting transcript sequence for the given nontemplate strand of the gene would be 5'-UUCACTGGTTCA-3'.
During transcription, the DNA sequence is transcribed into RNA, and the nontemplate strand serves as a template for synthesizing the RNA molecule. However, RNA is synthesized using RNA nucleotides that are complementary to the DNA nucleotides on the nontemplate strand.
In the given sequence, the DNA nucleotides are represented by their complementary RNA nucleotides: adenine (A) pairs with uracil (U), cytosine (C) pairs with guanine (G), guanine (G) pairs with cytosine (C), and thymine (T) is replaced by adenine (A) in RNA. Therefore, the resulting transcript sequence for the given nontemplate strand is 5'-UUCACTGGTTCA-3'.
This transcript can then undergo further processing, such as splicing and translation, to produce a functional protein based on the information encoded in the gene.
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EVIDENCE OF EVOLUTION MATCHING
DIRECTIONS: Look up or Create your OWN examples for 4 of the categories of evidence. Be sure to include which category you are giving an example for, what the example is, and explain your
choice.
Answer and Explanations:
Fossil record: The fossil record provides physical evidence of past life on Earth. For example, the discovery of transitional fossils like Archaeopteryx provides evidence for the evolution of birds from dinosaurs.
92) why did mendel continue some of his experiments to the f2 generation? a) to obtain a larger number of offspring on which to base statistics b) to observe whether or not a recessive trait would reappear c) to observe whether or not the dominant trait would reappear
The correct option is (b). Mendel continued some of his experiments to the F2 generation to observe whether or not a recessive trait would reappear. He discovered the Law of Segregation, the Law of Independent Assortment, and the Law of Dominance.
Mendel continued some of his experiments to the F2 generation to observe whether or not a recessive trait would reappear. He discovered the Law of Segregation, the Law of Independent Assortment, and the Law of Dominance, which would become the basis of modern genetics. Mendel discovered that traits are passed from parents to offspring and that certain traits are dominant and will be expressed in offspring over other traits, which are called recessive traits. The F2 generation is the second filial generation and is produced by crossing the F1 generation. This generation would demonstrate whether or not a trait could reappear, thus proving the Law of Segregation. This law states that each organism has two alleles for each trait that segregate during gamete formation and randomly unite at fertilization. Mendel wanted to see if these traits would reappear in the F2 generation as he discovered this pattern in the F1 generation. During his experiments, Gregor Mendel crossed peas with different traits and observed their offspring. His observations of how traits were passed from one generation to the next and his discovery of certain inheritance patterns is considered as one of the most important and fundamental breakthroughs in the history of biology. He crossbred pea plants with specific characteristics, such as color and texture, and followed how these characteristics were transmitted to the offspring of these plants, or their offspring. He was the first person to investigate and discover the underlying patterns of genetic inheritance. Mendel continued some of his experiments to the F2 generation because he wanted to observe if a recessive trait would reappear. In the F2 generation, he discovered the Law of Segregation, the Law of Independent Assortment, and the Law of Dominance, which would become the basis of modern genetics.Mendel's experiments showed that traits were passed down from parents to offspring, and that certain traits are dominant over other traits, which are known as recessive traits. For example, if a pea plant with yellow seeds was crossed with a pea plant with green seeds, the F1 generation would all have yellow seeds because the yellow seed trait is dominant over the green seed trait. However, when these yellow-seeded F1 plants were self-fertilized, the F2 generation would contain both yellow and green seeds because the green seed trait is recessive and could reappear in the next generation. Thus, Mendel continued his experiments to the F2 generation to test the patterns of inheritance of recessive traits.
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The saber-toothed tiger will be clone?
Answer:First off, they are not tigers. Smilodon and related species are from a group called the Machairodonts, which is a sister group to modern felines.
But yes, Smilodon fatalis is one of about twenty species that geneticists think that they will be able to clone in the not-too-distant future, together with woolly mammoths, dodo birds, moa, and giant ground sloths.
I’m not sure if that’s possible right now, as in July 23 2020, but it is certainly within the realm of possibility, unlike the cloning of Mesozoic dinosaurs.
I would imagine that a mountain lion would be the surrogate mother, as modern pantherines, though closer in size to sabertooths, are far too rare and valuable to experiment on in this way.
please give brainliest°∩°Which type of molecule is shown below?
OH OH
НО.
O
OH
OH
0 A. Lipid
0 B. Amino acid
O c. Carbohydrate
D. Nucleic acid
Н
SUBMIT
Answer:
C. Carbohydrate
The given molecule consists of hydroxyl groups (-OH) attached to a carbon atom, making it a carbohydrate. Therefore, option C, Carbohydrate, is the correct answer.
Explanation:
Carbohydrates are organic molecules consisting of carbon, hydrogen, and oxygen atoms. They are classified based on the number of sugar units they contain. Monosaccharides, such as glucose and fructose, contain a single sugar unit, while disaccharides, such as sucrose and lactose, contain two sugar units. Polysaccharides, such as starch and glycogen, contain many sugar units and are used for energy storage in plants and animals.
Answer:
B. Amino Acid
Explanation:
The molecule shown in the picture is an amino acid, specifically serine. Amino acids are the building blocks of proteins and have a characteristic structure consisting of an amino group (-NH2), a carboxyl group (-COOH), and a side chain (R group) that varies depending on the specific amino acid. In the case of serine, the R group is a hydroxyl group (-OH), which is the functional group shown in the picture.