Answers
Answer:
E
Explanation:
Hope this helps
Related Questions
Use the following scenario to answer questions 67-70
Kayla is a nutritionist and is interested in how diet affects growth in children. Using rats as a
model organism, Kayla set up the following experiment to examine the effects of diet on the
growth of baby rats. She chose rats because, like humans, they nurse their young, and share
many of the same genes. She designed an experiment that measured the effect of a sugar water
diet compared to a diet of breast milk on rat growth. She divided a litter of 6 rats into two groups
of three. Group A was fed a diet of sugar water, and Group B was fed breast milk. Each rat was
fed 5 mL of "food" each day. Kayla determined the mass of each rat once a week for 4 weeks.
67. What is the independent variable in this experiment?
68. What is the dependent variable in this experiment?
69. What is the control group in this experiment?
70. What variable(s) were constant in the different groups?
Answers
The independent variable in this experiment is the number of rats.
The dependent variable is the mass of each rat.
The control group in this experiment is the mass of each rat.
Nutritionists commonly work with individuals or populations to teach them more approximately general nutrients, food, and health. Their recognition is of meal behavior. This consists of working with people to plot and put in force meal plans that improve the person's or circle of relatives' nutrition.
In place of dietitians, who're qualified to diagnose eating disorders and lay out diets to treat particular medical conditions, nutritionists address standard dietary pursuits and behaviors. Nutritionists are regularly employed in faculties, hospitals, cafeterias, lengthy-term care centers, and athletic businesses
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Equipment required: Two empty coffee cans (3-pound size), a thermometer, a can of flat black spray paint, and some tap water. One of the coffee cans needs to have a shiny metallic surface on both sides. Spray the other can with the flat black paint, on both sides. Fill the two cans with about two inches of tap water. Using a thermometer, measure the temperature of the water in each can (the readings should be the same). Remove the thermometer and place the cans in a sunny location where they will not be disturbed and will receive two hours of sunlight. After two hours, use the thermometer to measure the temperature of the water in each can.
Answers
Answer:
Dark and dull objects absorb more energy. Lighter colored and shiny objects absorb less energy.
Explanation:
Because the shiny can reflects more energy then the black- colored can, the shiny can absorbs less energy. The water in the black colored can gets warmer because:
The cans emit energy. This heats the water. An object, which is shiny, reflects light. The black material almost absorbs light and heat. Heated bodies operate in reverse, which determines how they radiate energy. The higher the absorption by an object, the higher the radiation level it has. Since the shiny can absorbed less energy, it radiated less energy into the water. Thus, the water in the shiny can was less warm than the water in the black can.
Answer: (Answers may vary.)
Dark and dull objects absorb more energy. Lighter colored and shiny objects absorb less energy.
Because the shiny can reflects more energy then the black- colored can, the shiny can absorbs less energy. The water in the black colored can gets warmer because:
The cans emit energy. This heats the water. An object, which is shiny, reflects light. The black material almost absorbs light and heat. Heated bodies operate in reverse, which determines how they radiate energy. The higher the absorption by an object, the higher the radiation level it has. Since the shiny can absorbed less energy, it radiated less energy into the water. Thus, the water in the shiny can was less warm than the water in the black can.
Explanation: plato/edmentum
According to Kinsey's sexual behavior study, approximately
percent of
men and
percent of women had sexual intercourse by the age of 16.
Someone help me
Answers
According to Kinsey's sexual behavior study, approximately 21 percent of men and 6 percent of women had sexual intercourse by the age of 16. (Please mark me brainliest! thank you in advance!!)
Match each image with the life function the organism is performing.
Answers
How is the sycamore seed suited to its method of dispersal
Answers
Answer:
Sycamore seed is usually light in weight and have wings like feathers that enable them to easily be transported for a long distance by windExplanation:
Am l hope it is correct ❤️❤️❤️
What is responsible for movement within a cell
Answers
Answer:
Explanation:
In addition to playing this structural role, the cytoskeleton is responsible for cell movements. These include not only the movements of entire cells, but also the internal transport of organelles and other structures (such as mitotic chromosomes) through the cytoplasm
Why are estuaries important?They add oxygen to the ecosystem.They remove carbon dioxide from the ecosystem.They remove salt from the seawater.They provide breeding and nursery grounds for marine organisms.
Answers
The correct option is the last one "They provide breeding and nursery grounds for marine organisms". Estuaries are semi enclosed water bodies, that have calmer conditions than open sea. Thus, they are optimal places for growing of early stages of several fish and
invertabrates.
A recent forest fire has swept through the forest, killing many of the smaller organisms such as the hare, deer, and rodent populations that are prey for the larger organisms such as bobcats, wolves, and mountain lions. How would this affect the populations in the forest ecosystem?
Answers
Answer:
If the larger organisms did survive, they would be extremely affected. They wouldn't have food and shelter, which are two things needed for survival. They would probably start dying out because their food source has disappeared, or be forced to move to a different ecosystem.
Explanation:
^
Can I have brainliest? It would help me out, if not thanks anyways! Hope this helped and have a nice day!
Inez has two beakers that contain ethanol. One beaker contains 150 mL of liquid. The other beaker contains 300 mL of liquid. What can Inez expect to observe when she compares the properties of the liquid in the beakers.
Answers
The correct answer is B. The melting point of the liquid in each beaker is the same.
Since both beakers contain ethanol, Inez can expect the liquids in the beakers to have the same chemical properties, such as the molecular structure, boiling point, and density that are present in option A.
What is ethanol?If Inez adds a small object (like a grape or a paper clip) to each beaker, she may observe that the object sinks faster in the beaker with the smaller volume of liquid as there is less liquid to displace, and many factors like density and surface area play an important role in this, as the liquid in the larger beaker will be more massive and may feel heavier than the liquid in the smaller beaker, and if Inez were to leave both beakers out in the open air, the ethanol in both beakers would eventually evaporate, but at different rates.
Hence, Inez can expect the liquids in the beakers to have the same chemical properties, such as the molecular structure, boiling point, and density, that are present in option A.
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question is incomplete, complete question is below
Inez has two beakers that contain ethanol. One beaker contains 150 mL of liquid. The other beaker contains 300 mL of liquid. What can Inez expect to observe when she compares the properties of the liquid in the beakers.
A)to have the same chemical properties, such as the molecular structure, boiling point, and density
B)to have the different chemical properties, such as the molecular structure, boiling point, and density
How a population changes in size over a certain period of time
Answers
11. A forensic anthropologist noted that a set of skeletal remains exhibited the following traits: wide subpubic angle on the pelvis, a completely fused coronal suture, and a skull with a V-shaped mandible. Which description best supports the skeletal findings? a. The skeletal remains most likely belong to a male over the age of 60. b. The skeletal remains most likely belong to a male under the age of 60. c. The skeletal remains most likely belong to a female over the age of 60. d. The skeletal remains most likely belong to a female under the age of 60.
Answers
The skeletal remains most likely belong to a female over the age of 60. Option C
How do we identify the skeletal remains?The skeletal remains most likely belong to a female over the age of 60.
A wide subpubic angle on the pelvis is a characteristic of female skeletons.
Completely fused coronal suture is an indication of middle age but could differ from person's to person.
A skull with a V-shaped mandible is also more common in females than males. The age of the individual can be estimated from the fusion of the coronal suture, which typically occurs between the ages of 30 and 40.
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30. The entire molecule shown in the diagram below is the building block for RNA and is called a(n)
Phosphate
group
Nitrogen
bose
Suga
O pyrimidine.
O amino acid.
O polysaccharide.
O nucleotide.
Answers
Answer:
Nitrogen Base/Nucleotide
After receiving a stimulus, the _____ send(s) signals to the appropriate areas of the body.
A. sensory receptors
B. integrating center
C. effectors
Answers
Answer:
B. integrating center
Explanation:Answer:
The integrating center, generally a region of the brain called the hypothalamus, signals an effector (e.g. muscles or an organ ) to respond to the stimuli. Positive feedback enhances or accelerates output created by an activated stimulus.
Answer: Sensory receptors
;)
Explanation:
Which were the first present elements in the universe?
Answers
Answer:
The first present elements were hydrogen and helium.
Explanation:
4. (15) Some dog breeds are either black (BB, Bb) or brown (bb). However, the ability to create pigment (colour) is the result of a separate gene. For black or brown color to show, the AA or Aa must also be present; if not, the aa genotype results in no colour (albino/white). All responses must include the dihybrid Punnett squares with the results clearly stated. lting from a croce between two completely
Answers
The color of dog breeds can be black (BB or Bb) or brown (bb), and the ability to create pigment depends on the presence of the A gene (AA or Aa). The aa genotype results in no color (albino/white). Punnett squares can be used to predict the possible genotypes and phenotypes resulting from a cross between two dogs.
To determine the possible outcomes of a cross between two dogs, we can use a dihybrid Punnett square. Let's assume one dog is black (BbAa) and the other is brown (bbAA).
The Punnett square for the BbAa x bbAA cross would look like this:
Bb Ba
bb | Bbba | Bbaa
bb | bbba | bbba
From the Punnett square, we can see that there are four possible genotypes for the offspring: Bbba, Bbaa, bbba, and bbba. Among these genotypes, the Bbba and Bbaa genotypes will result in black-colored dogs, while the bbba and bbba genotypes will result in brown-colored dogs.
It's important to note that the presence of the A gene is necessary for color to be expressed, so the aa genotype would result in no color (albino/white) regardless of the B gene.
In summary, the use of a dihybrid Punnett square allows us to predict the possible genotypes and phenotypes of offspring resulting from a cross between dogs with different color and pigment gene combinations.
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PLEASE HELP True or False
Photosynthesis is an example of the Law of Conversation of Mass
explain with evidence
Answers
Answer:
false question s the right answer to this question
11. The diagram shows the formation of water from hydrogen and oxygen.
Which statement is true?
A. The reaction satisfies the Law of Conservation of Matter because only one type of substance is formed as a product.
B. The reaction satisfies the Law of Conservation of Matter because the number of each type of atom is the same in the products and reactants.
C. The reaction does not satisfy the Law of Conservation of Matter because the atoms are in different arrangements in the products and reactants.
D. The reaction does not satisfy the Law of Conservation of Matter because the new substance formed is made up of two types of atoms.
Answers
The reaction satisfies the Law of Conservation of Matter because the number of each type of atom is the same in the products and reactants.
The above given statement is true.
What is the "Law of Conservation of Matter"?
The "Law of Conservation of Matter" states that "matter can neither be created nor be destroyed". In other words, the total mass of an isolated system remains constant over time, as mass is neither created nor destroyed. This law applies to all types of matter, including atoms, molecules, and energy.
What are Atoms?
Atoms are basically the basic building blocks of matter. They are composed of protons, neutrons, and electrons and are the smallest particle of an element that still retains the properties of that element. Atoms are the fundamental units of chemistry and form the basis of all matter in the universe.
Therefore the option that is true is Option B.
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Which statement best describes a reliable source of information?
A source that follows the scientific method.
A source that includes the evidence to persuade a side.
A source that includes opinions to support a claim.
A source that uses pseudoscience to gather evidence.
Answers
The statement best describing a reliable source of information is:A source that follows the scientific method.
A reliable source of information is one that follows the scientific method. The scientific method is a systematic approach to investigating phenomena, which involves formulating a hypothesis, conducting experiments or observations, collecting data, and drawing conclusions based on evidence. By adhering to the scientific method, a source ensures that its information is based on rigorous and objective analysis.
A reliable source of information focuses on providing evidence to support its claims rather than relying on opinions. It presents data, facts, and research findings obtained through scientific studies or credible sources. This evidence-based approach adds credibility to the information presented and allows readers to evaluate the validity of the claims.
On the other hand, a source that includes opinions to support a claim may lack objectivity and can introduce bias into the information. Opinions alone do not necessarily provide a reliable basis for making informed judgments or decisions.
A reliable source also avoids the use of pseudoscience to gather evidence. Pseudoscience refers to claims or practices that are presented as scientific but lack the rigorous scientific methods and evidence required for validation. Such sources often promote ideas that are not supported by credible scientific research and can mislead readers.
In summary, a reliable source of information is one that follows the scientific method, presents evidence to support claims, avoids relying solely on opinions, and does not use pseudoscience to gather evidence. By adhering to these principles, a source can provide trustworthy and accurate information to its audience.
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Yabine is studying energy from food in her nutrition class. She learns that fats, proteins, and carbohydrates can store different amounts of
energy because they have different chemical Choose...
and different numbers of energy-storing chemical bonds. Carbohydrates
and proteins each release choose...
calories per gram when burned, and fat releases about Choose...
calories per
gram. The molecule containing the most energy-storing chemical bonds is Choose...
Answers
Answer:
Fat
Explanation:
Fat contains the most energy storing chemical bonds.
Fats, proteins, and carbohydrates can store different amounts of energy because they have different chemical STRUCTURES and different numbers of energy-storing chemical bonds.
Carbohydrates and proteins release approximately 4 kilocalories (4000 cal) per gram when they are burned.Conversely, fats represent the type of molecule that contains the most energy-storing chemical bonds.These molecules (fats) release approximately 9 kilocalories (9000 cal) per gram when they are burned.Carbohydrates are composed of subunits called monosaccharides (e.g., glucose) linked by glycosidic bonds.Carbohydrates are composed of amino acids linked together by peptide bonds.Fats are composed of long fatty acid chains attached to a glycerol backbone.In conclusion, fats, proteins, and carbohydrates can store different amounts of energy because they have different chemical STRUCTURES and different numbers of energy-storing chemical bonds.
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Fill in the blanks in the skeletal diagram.
Answers
The labeled parts of the human skeleton shown are found in the attachment.
What are the parts of a human skeleton?A skeleton is a structural framework that holds most animals' bodies in place.
There are two types of skeletons namely the exoskeleton and the endoskeleton.
The axial skeleton and the appendicular skeleton are the two components of the skeletal skeleton. The skull, vertebrae, ribs, and sternum make up the axial skeleton, which is the body's main structural component. The bones in the extremities make up the appendicular skeleton.
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What was simulated in the Miller-Urey experiment?
a. volcanic eruptions
b. lightning bolts
c. high winds
d. tidal waves
Answers
Explanation:
c. high winds. is the answer
Answer:
b. lightning bolts
Explanation:
List and explain types of tropic response in plants?
Answers
Plants exhibit various types of tropic responses, which are directional growth movements in response to external stimuli. Here are four types of tropic responses commonly observed in plants:
1. Phototropism: Phototropism is the growth response of plants towards or away from a light source. Typically, plant shoots exhibit positive phototropism, meaning they grow towards the light, while roots exhibit negative phototropism, growing away from the light. The hormone auxin plays a crucial role in mediating phototropic responses by redistributing growth hormones unevenly in plant tissues.
2. Geotropism/Gravitropism: Geotropism, also known as gravitropism, is the response of plants to gravity. Plant roots exhibit positive geotropism, growing towards the pull of gravity, while shoots exhibit negative geotropism, growing against the force of gravity. The differential distribution of auxin in response to gravity influences the growth patterns in roots and shoots.
3. Thigmotropism: Thigmotropism is the response of plants to touch or mechanical stimuli. It involves directional growth in response to contact with solid objects. For example, tendrils of climbing plants exhibit thigmotropic responses by coiling around supports for stability and attachment. Thigmotropism is often mediated by changes in the growth hormone auxin.
4. Hydrotropism: Hydrotropism is the growth response of plants towards or away from water. Roots typically exhibit positive hydrotropism, growing towards moisture, which aids in water absorption. This response allows plants to effectively navigate their roots towards water sources and ensure their survival in water-scarce environments.
These tropic responses are critical for plant survival and adaptation to their environment. They enable plants to orient their growth towards essential resources such as light, gravity, mechanical support, and water, maximizing their chances of obtaining necessary nutrients and ensuring optimal growth and development. The mechanisms underlying these tropic responses involve complex interactions between hormones, growth factors, and environmental cues, allowing plants to respond and adapt to their surroundings.
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Oxygen is not involved in any of the reactions of the Krebs cycle. Nevertheless, the Krebs cycle is considered a part of aerobic metabolism. Explain why this is not a contradiction.
Answers
Professionals in the field of psychology maintain a set of core values and ethics that differs slightly from
those held by social workers, because the needs and challenges of psychology patients are typically greater
than for clients who receive social services. Among the core values of psychologists are the efforts to treat
clients with fairness and honesty, to respect clients, and to
O discuss one client's problems with other clients
O do no harm to clients
O dispense prescriptions to clients
O criticize clients
Answers
Among the core values of psychologists are the efforts to treat clients with fairness and honesty, to respect clients, and to do no harm to clients and is denoted as option B.
Who is a Psychologist?This is referred to as a trained mental health professional who helps people handle their mental health challenges through the use of various types of methods and techniques.
They are involved in the treatment of clients with fairness and honesty which is a sign of respect and are not involved in dispensing of prescriptions to clients which is instead done by psychiatrists thereby making option B the correct choice.
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A plant is a
A one-celled eukaryote
B one-celled prokaryote
C multicellular eukaryote
D multicellular prokaryote
Answers
the answer should be c hope this helps:)
Answer: A plant is a multicellular eukaryote
Explanation:
Animals plants, fungi and protists are eukaryote. All multicellular organism are eukaryote. Eukaryotes may also be single-celled.
When graphing data, the variable the should be plotted on the x-axis is the...
Answers
Answer:
Independent Variable
Explanation:
the dependent variable goes on the y-axis while the independent variable goes on the x-axis
A dry cement road is a diffuse reflector. When it rains, the water fills in all the little holes and cracks in the cement road and it becomes a smooth regular reflector. At night, when you are depending on the light from your headlights to show you the lines on the road, a wet road becomes much darker and it is more difficult to see the lines. Explain why this occurs.
Answers
Answer:
Because of reflection of light away from the marking
Explanation:
It is because the light from a vehicle falls on the road and its markings which then gets illuminated as light is reflected only in one direction.
But in case when the road is wet, light of vehicle reflects in different directions away from the markings on the road and hence they do not illuminate.
The reason why the given phenomenon about the effect of light and while driving is; Due to total internal reflection of light away from the marking.
What is reflection of light?Reflection of light is simply defined as the phenomenon where light is sent back after being incident on a surface.
Now, in this question, the light from a vehicle falls on the road and its markings and then gets illuminated as light is reflected only in one direction.
However, when the road is wet, the headlight of vehicles tend to reflect away from the markings on the road in different directions which make them not to illuminate.
Thus, we conclude that reason why the given phenomenon about the effect of light and water on driving is due to total internal reflection of light away from the marking.
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Sucrose is an example of which macromolecule?
Carbohydrates
Lipids
Proteins
Nucleic acids
Answers
Answer: carbohydrate
Explanation: The molecule sucrose (common table sugar)The carbohydrate monosaccharides (fructose and glucose) are joined to make the disaccharide sucrose. Biological macromolecules all contain carbon in ring or chain form, which means they are classified as organic molecules.
Sucrose is an example of a **carbohydrate** macromolecule. The correct option is 1.
Carbohydrates are macromolecules composed of carbon, hydrogen, and oxygen atoms. They serve as a primary source of energy for living organisms. Sucrose, commonly known as table sugar, is a specific type of carbohydrate called a disaccharide. It's formed by the combination of two monosaccharides: glucose and fructose. Carbohydrates play essential roles in energy storage, structural support, and cellular recognition.
Carbohydrates are organic compounds made up of carbon, hydrogen, and oxygen atoms in a specific ratio. They are one of the four main classes of biomolecules, along with proteins, lipids, and nucleic acids. Carbohydrates serve as a vital energy source for organisms and play various roles in cellular processes and structural support.
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Glycogen is an important and quickly mobilized source of stored glucose. Glucose is mobilized for ATP generation in muscle in response to epinephrine, which activates Gs. How would inhibitors of cAMP phosphodiesterase affect glucose mobilization in muscle
Answers
Answer:
Glucose mobilization would continue
Explanation:
The GTP-bound alpha subunit (Gαs) is a subunit of the heterotrimeric G protein which is required for stimulating the cAMP-dependent pathway through the activation of the membrane-associated enzyme adenylyl cyclase, which in turn catalyzes the synthesis of the second messenger cyclic-3′,5′-adenosine monophosphate (cAMP) from ATP. Moreover, cAMP phosphodiesterase is an enzyme that hydrolyzes cAMP, thereby negatively regulating the levels of this second messenger, which is fundamental for the termination of the signal. In this case, the epinephrine signal initiates glycogen breakdown (glucose mobilization) in muscle cells. In consequence, if the cAMP phosphodiesterase enzyme is inhibited, the concentration of cAMP will persist high even beyond the termination of the signal, thereby glucose mobilization would continue.
Unlike photosynthesis, cellular respiration occurs in
a
plants, animals, protists, fungi and bacteria
b
plant cells only
c
all organisms except plants
d
animal cells only
Answers
Answer:
A
Explanation:
All organisms do cellular respiration as it is essential for life.