Answer:
Diffusion is the process in which molecules and ions move from a region of high concentration to low concentration. Its also how cells transport waste out of the cell and nutrients into it hence being very crucial. Diffusion also occurs without the expenditure of extra energy using a procedure known as passive transport. (Osmosis is a form of diffusion but deals with water exclusively).
Examples of where diffusion is important;
In the intestines - Digested food molecules such as amino acids and glucose move down the concentration gradient from the intestine into the bloodstream. Wastes such as carbon dioxide or urea travel via diffusion from the body's cells to the bloodstream.
Osmosis plays a major role in living organisms. It aids in the transportation of nutrients from cells to cells and also helps to remove the waste's metabolic products from the cell. The purification of blood in the kidneys is also dependent on the process of osmosis.
which of these are a producer? Moth,Mushroom,Fern,Cheetah
Answer:
fern is the producer.
Explanation:
producers are mainly green plants.
Q3. Why do we need to break big molecules into smaller molecules?
Answer:
In order for them to be quickly and easily absorbed.
________________________________________________
Short Answer:
Enzymes help break down large molecules for us since certain of their components are the only ones that are useful to us. In order to create proteins, lipids, and other components necessary for survival, the tiny molecules become soluble and are quickly taken into the circulation. Additionally, they could need to travel through some membranes, therefore when they are little, they can do so without difficulty.
________________________________________________
Long Answer:
The nutrients in food must pass the gut lining in order to exit the digestive system and enter our blood. This absorption occurs in the ileum and jejunum regions of the gut. In some regions, the gut lining is brimming with chemical systems that may latch onto the food's smaller molecules and "chaparone" them across the gut and into the liver. These "chaparone" molecules can hold small peptides and amino acids but not whole proteins. Greater floor fragments do not absorb. Without "chaparones," some of the stomach-digested products pass through the gut's pores, but they must be smaller than the pores. Only tiny pieces and certain fragments with complementary "chaparones" of the food we eat are molecular fragments that are absorbed. A number of gastrointestinal conditions are caused by an imbalance in the gut's capacity to absorb nutrients. One condition where iron is not effectively absorbed is Cooly's anemia. Iron deficiency affects Cooly's anemia patients, even if their stomachs digest food correctly and they have normal iron absorption. Catabolism is the process of dissolving big molecules into smaller ones. Catabolism releases energy by rupturing bonds. Anabolism creates new connections and needs energy to function. Catabolic reactions (destructive or biosynthetic process) breaks down large molecules and release energy
Which of the following is considered the process of budding?
A. Propagating the desired variety of shrubs or trees.
B. Growing of embryo from the egg cell without fertilization.
C. A fragment of the organism separated from the body, develops into an entire organism.
D. Pinches off the parent and grows into an individual.
Answer:
C. A fragment of the organism separated from the body, develops into an entire organism.
budding is when an organism exists [well it's born from asexual [meaning non-sexual reproduction] reproduction] by separating off from a parent organism
hope this helps!! :)
Question 6(Multiple Choice Worth 2 points)
(04.06 MC)
Which statement best describes a decrease in biotic potential?
O Deer increase their rate of reproduction on an island.
Rabbit population increases in a grassland biome.
O Lions have larger broods after successful hunting.
O Seals have more offspring when food is plentiful.
Explanation:
seals more offspring when food is plentiful
PLS HELPPP ASAP PLSSSS
The table below shows the role of different substances during photosynthesis.
Substance Role During Photosynthesis
Glucose Stores chemical energy
Water Combines with glucose to form carbon dioxide
Chlorophyll Traps sunlight
Which of the following statements would correct one of the roles listed in the table?
Glucose combines with carbon to form water.
Chlorophyll reacts with light to produce carbon dioxide.
Water combines with carbon dioxide during photosynthesis.
Chlorophyll stores chemical energy needed for photosynthesis.
Using the ultrasonication and agitation method of liposome preparation, what concentration of lipid is necessary to prepare liposomes with a diameter of 250 nm?.
The concentration of lipids necessary to prepare liposomes with a diameter of 250 nm is 0.30 mM.
What are liposomes?Liposomes are vesicles which are made up of a lipid bilayer membrane.
Liposomes are important as delivery vehicles for substances such as drugs.
Ultrasonication is a method of liposomes preparation.
Solution of liposomes is dependent on the size.
The larger the diameter, the smaller the l elution volume. Also, increasing lipid concentration will decreases elution volume.
Therefore, the concentration of lipids necessary to prepare liposomes with a diameter of 250 nm is 0.30 mM.
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Which types of muscle can
be conditioned to improve
their function?
Cardiac and skeletal muscle
Smooth and rough muscle
Answer:
Skeletal muscle – the specialised tissue that is attached to bones and allows movement. Together, skeletal muscles and bones are called the musculoskeletal system (also known as the locomotor system). Generally speaking, skeletal muscle is grouped into opposing pairs such as the biceps and triceps on the front and back of the upper arm. Skeletal muscles are under our conscious control, which is why they are also known as voluntary muscles. Another term is striated muscles, since the tissue looks striped when viewed under a microscope.
Smooth muscle – located in various internal structures including the digestive tract, uterus and blood vessels such as arteries. Smooth muscle is arranged in layered sheets that contract in waves along the length of the structure. Another common term is involuntary muscle, since the motion of smooth muscle happens without our conscious awareness.Cardiac muscle – the muscle specific to the heart. The heart contracts and relaxes without our conscious awareness.
Which are the only two photic zones in the ocean?
a. Epipelagic and Abyssopelagic
b. Mesopelagic and Epipelagic
c. Epipelagic and Bathypelagic
d. Abyssopelagic and Bathypelagic
Part b is the answer- Mesopelagic and Epipelagic
Answer: d. Abyssopelagic and Bathypelagic
Increasing substrate concentration restores enzyme activity that has been blocked by:.
Answer:
a conpatitive inhibitor only
Match the following terms and definitions.
"inner skin"; layer of cells that develop on the inside of the
embryo
process in early embryonic development that forms layers of
cells
1.
2.
"middle skin"; layer of cells that develops between the
3. ectoderm and endoderm; turns into organs, muscle, and
circulatory vessels
organisms that form by spiral cleavage and develop a mouth
4. from the first indentation of the gastrula stage of embryonic
development; includes most invertebrates
5.
an animal with a false body cavity separating the mesoderm
and endoderm
6.
a characteristic of animals that have subdivisions of repeated
body parts
gastrulation
protostomes
endoderm
mesoderm
pseudocoelomate
segmentation
The answer is as follow:
Inner skin"; layer of cells that develop on the inside of theembryo process in early embryonic development that forms layers of cells is gastrulation"Middle skin"; layer of cells that develops between the endoderm Ectoderm and endoderm; turns into organs, muscle, and circulatory vessels organisms that form by spiral cleavage and develop a mouth mesoderm From the first indentation of the gastrula stage of embryonic development; includes most invertebrates protostomesAn animal with a false body cavity separating the mesoderm and endoderm pseudocoelomateA characteristic of animals that have subdivisions of repeated body parts segmentationWhat is Gastrulation?This process of embryonic tissue development is called Gastrulation. This is a phase during the embryonic development of most animals during which the single-layered blastula is reorganized into a trilaminar which is a three layered structure called the gastrula.
The layers are namely; the ectoderm, mesoderm, and endoderm. Endoderm the most internal layer forms the lining of the gut and other internal organs.
Thus, this could be the answer.
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1. Gastrulation
2. Endoderm
3. Mesoderm
4. Protosomes
5. pseudocoelomate
6. Segmentation
What observations were you able to make after 24 hours? 48 hours?
Since this is biology and you are not saying what we are observing, I'm gonna choose water as the subject I'm looking at.
If you leave the water out for about 24 hours, the water will have many different kinds of bacteria. Same with the 48 hours, but there are more bacteria in it.
why does ventricular tachycardia cause syncope
Tachycardias, or extremely rapid heartbeats, can cause syncope. Examples include supraventricular tachycardia (SVT) and ventricular tachycardia.
Tachycardia and how it causes syncope
The lower chambers (ventricles) are where ventricular tachycardia starts and it is extremely rapid. Ventricular tachycardia may not be problematic if it lasts only a few seconds. However, persistent ventricular tachycardia might drop blood pressure, which can cause syncope (fainting) or dizziness.To learn more about tachycardia and syncope, refer to-
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ANYONE?
A 21 year old woman has increasing severe pain in her left leg. She had an undisplaced fracture of the midshaft of her left tibia 2 days ago which was treated conservatively with a plaster cast.
Her toes are warm and pulses are present.
Which is the most important immediate action?
1. Elevate the limb
2.Refer to orthopaedics
3. Remove the plaster cast
4.Replace the cast with increased padding
5. Re-X-ray the fracture site
C. Remove the plaster cast
How would the building of underwater cities contribute to the fastest growing environmental science fields
Underwater those scientists could go out into the water and possibly find a plant that could grow superfast because of some cells it has. Well those scientists could extract those cells from that plant and put the cells in another plant. So then that plant grows Superfast.
What are the four components of environmental science?Environmental science is an interdisciplinary academic field that assimilates physical, biological and information sciences(like biology, physics, chemistry, ecology, zoology, oceanology, mineralogy, limnology, soil science, geology, atmospheric science, and geodesy). In other words, it is an objective, unbiased pursuit of knowledge about the workings of the environment and our interactions with it.
The four main components of the environment include
Lithosphere, Hydrosphere, Atmosphere and Biosphere,resembling to rocks, water, air and life respectively.
Thus, this could be the answer.
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1
4. How does energy move through your ecosystem? Think about the producers (plants)
and how energy moves from producers to other organisms. (3 points)
I
CE
Explanation:
There are several different factors that control the primary productivity of energy and biomass flow. Energy flow is the amount of energy that moves through a food chain. The energy input, or energy that enters the ecosystem, is measured in Joules or calories. Accordingly, the energy flow is also called calorific flow.
what type of competition is evident amongst the squirrels
Answer:
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why is cooling of the plant important
Answer:
When temperatures are too high, energy systems (metabolic functions) slow, and growth and flowering slows or stops.
Explanation:
-cooling the plant and pumping water and minerals to the leaves for photosynthesis. Plants need to cool themselves for several reasons.
Binary fission occurs when ____________ growth conditions are present.
Binary fission occurs when favourable growth conditions are present.
Binary fission can is an asexual type of reproduction that involves division of the cell into two identical cells. This type of asexual reproduction occurs in bacteria.
The favourable condition that are needed for binary fission include; water, temperature.
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Your kitchen is full of plants from different classes. Identify five different plants (or fruits of those plants, or products of those plants) and their class.
10. Write the 2 Hardy-Weinberg equations. Use the equation to calculate the percentage of carriers of cystic fibrosis (a recessive disease, you must have two recessive alleles to have the disease) in a population if the frequency of cystic fibrosis births in that population is 9 in 1000.
Using the Hardy-Weinberg equations, the percentage of carriers of cystic fibrosis is 8.19%.
What are the Hardy-Weinberg equations?The Hardy-Weinberg equations describe the relationship between alleles in a population that is fairly constant.
The Hardy-Weinberg equations are given below as;
[tex]p^{2} + 2pq + q^{2} = 1 \\p + q = 1[/tex]
[tex]q^{2} = 0.009\\q = 0.09\\p = 1 - 0.09\\p = 0.91[/tex] Hardy-Weinberg equations
Percentage of carriers = 2pq
Percentage of carriers = 2 * 0.09 * 0.91 * 100 = 8.19%
Therefore, the percentage of carriers of cystic fibrosis is 8.19%.
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Susan makes a claim that humans do not evolve because we adapt to situations by changing our technology, not ourselves. which piece of evidence contradicts this idea? humans have been using tools for a long time. other primates also use tools. the size of our brains has increased since humans started using tools. our technology is always increasing.
The correct answer is option C.
The size of our brains has increased since we became tools users.
Researchers have proved that using modern technology gadgets not only modifies our brain functioning, but also stimulates our brain to make it more active.
Humans do not evolve because we adapt to situations by changing our technology, not ourselves.
What is the second artery that branches off the aortic arch?
The second artery that branches off the aortic arch is the left common carotid artery.
What is the left common carotid artery?The left common carotid artery is a blood vessel that emerges from the aorta in the hearth.
The left common carotid artery is one of the most important branches of the arterial system.
In conclusion, the second artery that branches off the aortic arch is the left common carotid artery.
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Which of the following is a future consequence of the use of hydropower from dams on the environment?
A. It generates no greenhouse gases
B. It can be used in isolation locations
C. A dam and reservoir can flood habitats.
D. It produces less noise than other energy
Answer: C
all of these are good things except the flooding of the habitats
What are two sides of the Golgi body
All of these are steps in the lytic cycle of a temperate bacteriophage. Which happens second?
The second steps in the lytic cycle of a temperate bacteriophage is the entry.
What are the steps in the lytic cycle of a bacteriophage?The lytic cycle has several phases: Absorption is the phase in which the recognition and attachment of the virus to the cell occurs. Viruses are very specific to their host cells. The host is endowed with chemicals capable of allowing the virus to detect it and attach itself to the membrane.
So, the 4 stages of the lytic cycle is attachment, penetration, biosynthesis, maturation, and release.
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Arrange the symbols to form a dna molecule. an upward arrow. a downward arrow. 5' an upward arrow. a downward arrow. 3'
The clear representation of the DNA molecule is represented below in the picture.
What is a DNA molecule?A DNA molecule may be characterized as a molecule that possesses the biological instructions that assemble each species remarkable. It is a molecule found inside cells that comprises the genetic information accountable for the expansion and operation of an organism.
A DNA molecule is comprised of nucleotide base pairs like Adenine (A), Thymine (T), guanine (G), and cytosine (C).
According to Chargaff's rule, adenine is bounded to thymine with the help of two hydrogen bonds while guanine is bounded to cytosine with the help of three hydrogen bonds.
Therefore, it is well described above.
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Answer:
C T
A. G
3'. 5'
Explanation:
Determine whether the statement is true or false, and why. “If a theory becomes supported by evidence, it can become a law.” A. False, it should read, “A theory and a hypothesis are already equally supported by evidence, but they have different functions.” B. False, it should read, “If a theory becomes supported by evidence, it can become a hypothesis.” C. False, it should read, “A theory and a law are already both supported by evidence and are equal, but they have different functions.” D. True
The statement "If a theory becomes supported by evidence, it can become a law" is false because it should read, “A theory and a law are already both supported by evidence and are equal, but they have different functions.” Thus, the correct option is C.
What is Evidence?Evidence may be defined as the general body of attributes or information suggesting whether speculation or recommendation is authentic or valid.
In scientific methods, both theory and law are supported by evidence but they have different functions.
The function of theory illustrates an explanation of the statements and discoveries accumulated during the process.
While the function of law illustrates an experimental circumstance in nature that is genuine whenever it is positioned to experiment.
Therefore, it is well described above.
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Which of the
following does NOT
protect vital organs?
Week
A. ribs
B. femur
C. skull
Answer:
femur I am pretty sure. The skull sheilds your brain, your ribs for your heart and lungs. backbone spine
Explanation:
For fruits/vegetables, why do some sugars exist in simple forms and some sugars in complex forms?
Simple sugars are a type of carbohydrate. Carbohydrates are one of the three basic macronutrients — the other two being protein and fat.
Simple sugars are found naturally in fruits and milk, or they can be produced commercially and added to foods to sweeten, prevent spoilage, or improve structure and texture.
Monosaccharides are the simplest carbs, in that your body cannot break them down further.
This allows your body to absorb them quickly and easily, with the exception of fructose.
There are three types of monosaccharides (1Trusted Source):
Glucose: Fruits and vegetables are natural sources of glucose. It’s also commonly found in syrups, candy, honey, sports drinks, and desserts.
Fructose: The primary natural dietary source of fructose is fruit, which is why fructose is commonly referred to as fruit sugar.
Galactose: The main dietary source of galactose is lactose, the sugar in milk and milk products, such as cheese, butter, and yogurt.
Select the correct answer from each drop-down menu.
The nervous system and the muscle system respond to stimuli to produce motion. The movements of
muscles are mostly voluntary. Involuntary movements occur in these muscles when the nerve impulse passes from a sensory neuron to a motor neuron via an interneuron in the
The nervous system and the muscle system respond to stimuli to produce motion. The skeletal movements of muscles are mostly voluntary.
Involuntary movements occur in these muscles when the nerve impulse passes from a sensory neuron to a motor neuron via an interneuron in the spinal cord.
What are Skeletal muscles?Skeletal muscles may be defined as the muscles that fasten to your bones and authorize you to achieve a broad range of activities and operations.
Skeletal muscles control the direct movement of a person's will and are hence referred to as voluntary movement. While the spinal cord is associated with both movements directly or indirectly. It is a prolonged, delicate tubelike network liable for holding incoming and outgoing messages through the brain to the rest body.
Therefore, it is well described above.
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Answer
skeletal & spinal cord
Explanation:
The nervous system and the muscle system respond to stimuli to produce motion. The movements of skeletal muscles are mostly voluntary. Involuntary movements occur in these muscles when the nerve impulse passes from a sensory neuron to a motor neuron via an interneuron in the spinal cord
