Answers
Answer:
individuals grow and develop throughout their life, but evolution is something that happens to a species over generations. evolution takes a long time and is a species adaptation to its environment, such as arms getting longer or extra bones. babies are born with these adaptations throughout generations, it’s not something individuals develop during their lifetime.
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Related Questions
what is the role of hydrogen i nthe synthesis of a fat that is unsaturated and therefore an oil at roo mtermperatrure g
Answers
The role of hydrogen in the synthesis of saturated fats is that hydrogen when added to the unsaturated fats converts them into saturated fats and helps them solidify.
By converting all of the double bonds in the fat to single bonds, full hydrogenation causes all of the unsaturated fats to change into saturated fats. Partial hydrogenation eliminates certain double bonds by partially replacing them with single bonds, but not all of them. Remember that an alkene becomes an alkane when hydrogen is added to it.
An example for a hydrogenation reaction:
\(H^{2}C\)=\(CH^{2}\) + \(H^{2}\) → \(CH^{3}CH^{3}\)
In this reaction the reactant is alkene, which is an unsaturated hydrocarbon, while the product formed by hydrogenation, alkane, is a saturated hydrocarbon. Commonly referred to as "polyunsaturated," vegetable oils. This only indicates the presence of several double bonds. The hydrogenation reaction can turn liquid vegetable oils into solids. This "hardening" process turns margarines and shortenings into solids or semi-solids.
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Which is a biotic factor?
Answers
Answer:
a living organism that shapes its environment
Explanation:
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What do you think some of the negative consequences of gender socialization could be?
Answers
One negative consequence of gender socialization is the reinforcement of gender stereotypes. Stereotypes are oversimplified and often inaccurate beliefs about groups of people, and they can lead to discrimination and prejudice. Gender stereotypes can limit individual choices and opportunities, as well as contribute to gender-based violence and other forms of inequality.
Another negative consequence of gender socialization is the pressure to conform to traditional gender roles and expectations. This pressure can limit individual expression and creativity, and it can also contribute to mental health issues such as anxiety and depression.
Assignment: 02.03 Early Cells Lab report
Answers
Answer:
I don't see anything. I think you forgot to attach the picture.
Which of the following statements best describes the function of a cell membrane?
( WILL MARK BRAINLIEST ) Please help ASAP
A. The cell membrane has many functions, but its primary action is to regulate the movement of materials into and out of the cell
B. The cell membrane has numerous functions, but its primary role is to keep organelles contained within the cell
C. The cell membrane has many functions, but its primary action is to act as a barrier to keep foreign substances from moving into the cell
D. The cell membrane's primary function is to move waste out of the cell
Answers
The correct answer as to which best describes the function of a cell membrane would be that the cell membrane has many functions, but its primary action is to regulate the movement of materials into and out of the cell. The correct option would be A.
The cell membrane primarily delimits the cell and act as an interface between the inner content of the cell and its surrounding.
The cell membrane is selectively permeable. Thus, it regulates the movement of materials between the cell's matrix and the surrounding.
Other functions of the cell membrane include:
By regulating the movement of materials in and out of the cell, the cell membrane ensures that the optimal range of concentration of substances is maintained within the cell. In other words, it maintains homeostasis.By surrounding the cell, the plasma membrane becomes the first line of contact for anything that might want to harm the cell. Hence, it serves protective functions.By selectively allowing and influencing some materials to move out or inside the cell, the cell membrane plays an integral role in the transportation of materials.
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Mr. K, a 57-year-old man, presents w/CC of bilateral claudication provoked by moderate exercise. Pt also states extended sitting w/o support of lower extremities results in bilateral lower extremity erythema and occasional pedal paresthesia. Contributing Social hx: Smoker: 30 pack years; little to no regular exercise.
Physical examination reveals an overweight male appearing his stated age. Hyperthermia and anterolateral alopecia noted bilaterally in the lower extremities.
Blood Tests:
Hypercholesteremia
Hypertriglyceridemia
Differential Diagnosis: Peripheral atherosclerosis, CHF, and peripheral vascular disease.
Questions
1. Explain how the disease process and development of atherosclerosis resulted in the presentation and lab results of Mr. K.
2. Discuss the complications that might develop in Mr. K.
3. Identify possible plan of care options that may include patient education, treatment options, necessary referral(s) and/or further diagnostic testing for Mr. K.
Answers
1. The disease process and development of atherosclerosis in Mr. K have resulted in his presentation of bilateral claudication, lower extremity erythema, and occasional pedal paresthesia.
2. Complications that might develop in Mr. K due to atherosclerosis include increased risk of heart disease, heart attack, stroke, and peripheral vascular disease.
3. A possible plan of care options for Mr. K may include patient education on lifestyle modifications such as smoking cessation, regular exercise, and a healthy diet to improve cholesterol and triglyceride levels.
1. Atherosclerosis is a condition characterized by the buildup of plaque in the arteries, leading to narrowing and reduced blood flow.
In Mr. K's case, atherosclerosis has affected his lower extremities, resulting in bilateral claudication (pain during exercise due to inadequate blood supply) and erythema (redness) when sitting without lower extremity support.
The decreased blood flow caused by atherosclerosis leads to tissue ischemia, resulting in symptoms of claudication and erythema.
Additionally, the presence of hypercholesterolemia and hypertriglyceridemia in the blood tests suggests elevated levels of cholesterol and triglycerides, which are known risk factors for atherosclerosis.
These lipid abnormalities contribute to the development and progression of plaque formation in the arteries.
2. The reduced blood flow may also increase the risk of blood clot formation, potentially resulting in arterial occlusion and ischemic events such as heart attack or stroke. Additionally, poor circulation increases the risk of delayed wound healing and infection in the lower extremities.
3. Treatment options may involve medication management to control cholesterol and triglyceride levels, such as statins and fibrates.
Referral to a vascular specialist may be necessary for further diagnostic testing, such as vascular imaging studies (e.g., Doppler ultrasound, angiography) to assess the severity and extent of atherosclerosis.
If significant arterial blockage is identified, interventions such as angioplasty or bypass surgery may be considered.
Regular monitoring and follow-up visits with healthcare professionals are crucial to manage Mr. K's condition effectively and prevent complications.
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In a local park, several environmental changes are noted; crayfish eggs in the lake are fewer than normal. When tested, the water from the lake has an elevated level of aluminum. What addition to the lake is the most likely cause of these conditions?
A)
acid rain
B)
lead from batteries
C)
sulfur dioxide particulates from a near-by factory
D)
carbon monoxide from cars near-by
E)
increased ozone from sun exposure
Answers
Answer:
B) lead from batteries
Explanation:
I think this is right
Which of the following is not an example of a metabolic process within the cell?(A) Transport of molecules into and out of the cellB Distribution of molecules throughout the organismC) Breakdown of harmful chemical and toxins(D) Transcription and translationE All of the above are metabolic processes within the cell.
Answers
To answer this question, we have to consider that metabolism is a term that refers to all the processes that maintain a cell or an organism alive, and it includes events such as the conversion of energy from glucose into ATP, the movement of cells, the production of proteins, the cell respiration, but also includes in multicellular organisms, such as plants and animals, for example, their nourishment, and the neurological processes.
Having this clear, we can say that the correct answer is all of the above, as stated in the E answer option, since the molecule transport into and out of the cell, the distribution of molecules throughout the organism, the breakdown of harmful chemical and toxins, and the transcription and translation processes are metabolic processes.
Species Characteristics
X Short canine teeth, small prey size
Y 1-foot-long canine teeth, large prey size
Which species will most likely survive if the prey population in the area decreases?
A- Species X because it is difficult to bring down a small prey
B- Species X because short canines are less likely to break
C- Species Y because long canines are less likely to break
D- Species Y because it is easy to bring down a large prey
Answers
The species will most likely survive if the prey population in the area decreases (A). Species X because it is difficult to bring down a small prey is correct option.
If the prey population declines, species X, which has short canine teeth and is specialized for small prey, would benefit. This is so because of how tough it is for them to take down a large prey due to their physical makeup. In contrast, due to their specialised traits, Species Y, with 1-foot-long canine teeth and an adaptation for huge food, may encounter difficulties when hunting smaller species. Therefore, in a scenario where the population of the prey drops, Species X has a higher chance of surviving.
Therefore the correct option is (A).
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Which of the following do animals NOT need for cellular respiration? *
A. oxygen
B. Carbon dioxide
C. Water
D. Nutrients
Answers
Answer:
B.
carbon dioxide doesnt need to resperaite
How does the atmosphere help to make Earth livable? Check all that apply.causes the seasonscontains oxygenprovides warmthcreates important nutrientsblocks harmful energy from the Sun
Answers
The Earth atmosphere is livable because it contains oxygen, keeps the temperatures in levels that make possible to the living beings survive, protects from harmful ultraviolet solar radiation, and creates pressure that make possible that liquid water exist in the surface of the planet. Therefore, the options that are true to the functions of the atmosphere to make possible the living being survive in the Earth are:
- contains oxygen;
- provides warmth;
- blocks harmful energy from the Sun.
The others are not apply because of the fact that, the seasons are related to the Earth moviment and not only by atmosphere conditions, and there is others factor related to the creation of important nutrients (that can occurs in atmosphere) but are not created by the atmosphere.
Which adaptation would make sense for a polar bear living in the Arctic if the temperature became colder?a) larger stomach to store more waterb) shorter legs to move more quicklyc) thicker fur to trap heatd) better eyesight to see more clearly
Answers
Adaptation
In this case, a polar bear needs an adaptation that allows it to retain more and more efficiently its body heat to avoid freezing at a lower temperature than it is used to, so thicker fur would be the best adaptation to this change in the environment.
If mitosis makes somatic (body) cells, what does meiosis make?
A. Sex cells
B. Heart cells
C. Nerve cells
D. Body cells
Answers
Meiosis creates sex cells, just as mitosis creates somatic (body) cells.
In living things, there are two different types of cell division: meiosis and mitosis. Meiosis produces four genetically distinct cells, whereas mitosis produces two genetically identical cells from a parent cell.
Somatic cells, such as liver cells, skin cells, etc., are body cells that do not participate in reproduction. Mitosis is the process through which somatic cells divide. Meiosis is the process by which sex cells, or gametes, are created because they are involved in reproduction. Meiosis contributes to sexual reproduction's genetic diversity.
As a result, choice A is the right response.
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1. What are the methods by which fossils are preserved?
Answers
Answer:
unaltered software or Hard parte, altered Hard parte, and trace fossils.
what usually accompanies a cold spell in minnesota?
Answers
What do all living things have in common? All have cells with a nucleus. All have a genetic code. All are made of two or more cells. All can perform photosynthesis.
Answers
Living beings are organisms that can respire, respond, grow, reproduce, and are made of cells. All living things have a genetic code. Thus, option B is correct.
What is a genetic code?A genetic code is a sequence of proteins and nucleic acids that act as a hereditary molecule that transfers the traits and characteristics to the progeny.
The code can be in the form of DNA or RNA and provides information about the genotype of the organisms that were passed from their ancestors.
The genetic code is in the form of triplets and is a universal system that codes for the same proteins in all organisms. It consists of the nitrogenous bases that through translation make the amino acids.
Therefore, option B. all living organisms have a genetic code.
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A crane has a sharp and pointed beak while the duck has a flat beak.Explain why
Answers
Answer:
The crane has a sharp and pointed beak adapted for catching and grasping prey. The sharp beak allows the crane to effectively stab and pierce its prey, such as fish, frogs, or small animals. The pointed shape helps the crane to accurately target its prey and secure a firm grip.
On the other hand, the duck has a flat beak, which is better suited for its specific feeding habits. Ducks are primarily filter feeders, and their flat beak enables them to sift through water or mud to collect small organisms, insects, and plants. The flat beak acts like a sieve, allowing the duck to strain out food particles while retaining water.
The difference in beak shape between the crane and the duck reflects their distinct feeding strategies and ecological roles. Each species has evolved its beak shape to optimize its ability to capture and consume the specific types of food sources available in their respective habitats.
the grey area surrounded by the stage is called
Answers
Answer:
Figure 1-4 shows one with an animation in progress. Work area is the technical name for the gray area surrounding the stage, although many Flash-ionados call it the backstage. ... The Stage is where you draw the pictures that will eventually become your animation.
Explanation:
Match the effect of exercise to the correct term.
Answers
2. oxygen consumption
3. stroke volume
What must occur during fertilization in humans in order to produce a male child?
Answers
Answer:
In order to have a male child the egg(X-chromosome) must fuse with a Y-bearing sperm so that the resulting combination is XY i. e. a male is produced. The Zygote Must Receive A Y-Chromosome.
Explanation:
Answer:
In order to have a male child the egg(X-chromosome) must fuse with a Y-bearing sperm so that the resulting combination is XY i. e. a male is produced. The Zygote Must Receive A Y-Chromosome
Which of the following items are pure elements-that is, made up of only one type of atom? Check all that apply.
-Iron
-Carbon
-Cheese
Answers
The items that are pure elements are Iron and Carbon
Pure elements are one that contains a single form of atom i.e., one kind of particle.
Iron (Fe) is a metal that belongs to pure elements as it has homogenous chemical composition. It cannot be broken by any chemical methods because it is the simplest form of the element. Similarly, Carbon (C) is also a pure element with homogenous chemical composition.
On the other hand, Cheese is a mixture. The basic ingredients used for the production of cheese are milk, salt, starter culture, and rennet. These result in cheese with constituents of milk, microorganisms and breakdown products of the reaction which contributes to the color and flavor of the product.
Therefore, Iron and Carbon are the pure elements
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A solid is held in shape by strong ___________ forces.
A.intermolecular
B.magnetic
Answers
A solid is held in shape by strong intermolecular forces. Therefore, the correct option is (A).
A solid is held in shape by strong intermolecular forces (option A). Intermolecular forces are attractive forces that exist between molecules, or in the case of solids, between the constituent particles such as atoms, ions, or molecules themselves. These forces play a crucial role in determining the physical properties of solids, including their shape and stability.In a solid, the intermolecular forces are stronger compared to those in liquids or gases. These forces can be ionic, covalent, metallic, or even weaker van der Waals forces. The strength of the intermolecular forces determines the rigidity and structural integrity of the solid.These forces hold the particles in their fixed positions, allowing the solid to maintain a definite shape and resist deformation. It is the interplay of intermolecular forces that gives solids their characteristic properties such as hardness, brittleness, and melting point. Magnetic forces (option B), on the other hand, are specific to materials that exhibit magnetic properties and are not generally responsible for holding solids together.For more such questions on Solid:
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I need help with this question
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Due to the fact that lipids may be broken down to produce significant amounts of energy, one of the lipids' primary biological purposes is to store energy.
What is the function of lipids?Since lipids may be broken down to provide significant amounts of energy, storing energy is one of their primary biological purposes. Additionally, lipids create many signaling and messenger molecules in the body, as well as the structural elements of cell membranes.Triacylglycerols, phospholipids, and sterols are the three primary categories of lipids.Lipid accumulation in microorganisms is a biological process that serves a variety of purposes.Lipid storage aids in cell growth, cell division, the reaction to stress, and the storage of energy for survival. Lipid buildup contributes to pathogenicity in some situations.To learn more about lipids, refer
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One of the reasons you might struggle to lift a heavy object with your arm fully extended is because:_______.
Answers
Answer:
the overlapping decreases between the thin and thick filaments.
Explanation:
When w extend our hand or arm to the full and try to lift any heavy object, we are unable to lift the object inspite of applying all our force. We struggle hard to lift the object with our fully extended arm because when we extend our arm fully it decreases the overlapping of our thin and the thick filaments of our muscles which makes it difficult to lift. In other words, the resting length of our arm is the optimal length to generate force.
(HELP FAST) A slanting, horizontal line is shown. On the extreme left, there is a label that says Common Ancestor. Along the slanting, horizontal line there are five dots labeled from left to right as: 1, 2, 3, 4, and 5. There is one vertical line between each of the consecutive five dots. The lines are labeled from left to right as Perch, Frog, Pigeon, Rats, and Human. A text box below the branching tree diagram is labeled Derived Shared Characteristics. In the box it says from left to right Terrestrial during all stages, Jaws, Walking on two legs, Mammary glands and hair, and Four limbs.
Look at the possible derived shared characteristics, shown in the text box. Think about where these should be placed along the branching tree diagram. Where in the branching tree would you most likely write "lives on land during all life stages"? Explain your answer.
Answers
"The derived shared characteristic 'Terrestrial during all stages' should be placed at the base of the tree diagram."
SupThe characteristic "Terrestrial during all stages" is a shared characteristic among all five species being compared in the branching tree diagram. This means that it is a characteristic that all of these species have in common, and therefore it is likely that it was present in their common ancestor.
Since the base of the tree represents the common ancestor of the species being compared, it makes sense to place this characteristic at the base of the tree. This also helps to show that this characteristic is a defining trait of the group of species being compared and that it has been present in their lineage since their common ancestor.
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a hydrogen atom shares electrons with an oxygen atom in water molecule forming a strong
Answers
Answer: Covalent Bond
Explanation: A covalent bond occurs when electrons are shared between two atoms, in this case the hydrogen atom is sharing an electron with the oxygen atom, creating a strong covalent bond.
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Select the correct answer. What is the general form of the equation of a circle with its center at (-2, 1) and passing through (-4, 1)? A. x2 + y2 − 4x + 2y + 1 = 0 B. x2 + y2 + 4x − 2y + 1 = 0 C. x2 + y2 + 4x − 2y + 9 = 0 D. x2 − y2 + 2x + y + 1 = 0
Answers
x² +y² +4x -2y +1 = 0 is the general fοrm οf the equatiοn οf a circle with its center at (-2, 1) and passing thrοugh (-4, 1)
What is a circle equatiοn's general fοrm?The centre and radius οf a circle make up the whοle graph. (xh)² + (yk)² = r² is the equatiοn οf a circle in standard fοrm. The radius is r units, and the centre is at (h, k). Mark pοints r units up, dοwn, left, and right frοm the centre οf the circle tο graph it.
A x + b y + c = 0 is the general versiοn οf the equatiοn fοr a straight line, where a, b, and c are real cοnstants. We nοte οut that while all equatiοns οf straight lines may be expressed in the general fοrm, nοt all can be expressed in the pοint-slοpe οr slοpe-intercept fοrms.
Given:
( x + 2 )² + ( y - 1 )² = r²
4 = r², than we will plug in tο a fοrmula:
x² + 4 x + 4 + y² - 2 y +1 = 4
Thus,
x² +y² +4x -2y +1 = 0 is the general fοrm οf the equatiοn οf a circle with its center at (-2, 1) and passing thrοugh (-4, 1)
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True or False: The ribosomes are a series of passageways that
transport things around the cell.
Answers
False, ribosomes are not involved in transport of things around the cell.
What are ribosomes?
A ribosome works as a tiny device that produces proteins. Special proteins and nucleic acids make up ribosomes. The process of making proteins is centered on the TRANSLATION of knowledge and the LINKING of AMINO ACIDS. A ribosome is made up of two subunits that lock together to perform the following two tasks: (1) Translate information encoded in messenger ribonucleic acid (mRNA) from the cell nucleus; (2) Link together amino acids chosen and gathered from the cytoplasm by transfer ribonucleic acid (tRNA) (3) Export the synthesized polypeptide to the cytoplasm, where it will combine with other molecules to form a functional proteinOrganelle involved in transportation: ENDOPLASMIC RETICULUM
Similar to how a city's road network enables mobility within it, the endoplasmic reticulum is a network of tube-like passageways via which proteins from the ribosomes can be transported.
Endoplasmic reticulum is another name for it. There are two types: RER and SER. Rough ER and Smooth ER are abbreviations for respectively. Ribosomes are affixed to rough ER, aiding in the synthesis of proteins. Cells use ERs for a variety of purposes. One of their main jobs is to serve as a transport route. The endoplasmic reticulum membrane is used to transport secretory proteins, primarily glycoproteins.
Hence, endoplasmic reticulum is involved in transport and not the ribosomes
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How does the number of times the nostrils open and close in one minute compare with the number of times the frog’s throat moves up and down in one minute?
Answers
The number of times is the same when referring to frogs. The throat therefore travels up and down whatever many times the nostrils open and close in a minute.
In a frog, the neck moves up and down between 80 and 120 times per minute; these motions are referred to as oscillatory. The floor of the buccal cavity exhibits oscillatory motions (floor alternately lowered and elevated) when breathing through the buccopharyngeal cavity, maintaining the mouth, gullet, and glottis closed. The frog lowers the floor of its mouth, which causes the neck to widen and pull air into its mouth. Air then enters the larger mouth as the nostrils expand.
The air in the mouth is then driven into the lungs by contraction of the mouth floor as the nostrils close. The floor of the mouth glides downward, sucking air from the lungs and into the mouth to expel the carbon dioxide in the lungs. Eventually, the mouth floor is raised, forcing the air out of the nostrils, and the nostrils are opened.
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Which process is a nuclear division mechanism that halves the chromosome number and is a necessary part of gamete formation and sexual reproduction
Answers
Answer:
Meiosis
Explanation: