C. Cancer
Is the correct answer.
The timeline illustrates that
A) theories change as time goes by.
B) theories can be expanded with empirical data.
C) scientific research does not influence theories.
D) peer review is not effective in modifying theory.
I think C because scientific research can make them humans do
the answer is B because i found out the hard way
In the early stages of its formation, Earth became hot enough that some of its solid materials turned to liquid. Which of these factors did not directly contribute to Earth’s high internal temperatures?
A.
heat from accretion
B.
formation of geological layers
C.
radiogenic heat
D.
heat from gravitational compression
the correct answer you are looking for would be letter B. formation of geological layers
hope this helps :)
The correct answer is option B, that is, the formation of geological layers.
The flow of heat from the interior of the Earth to the surface is predicted in term of terawatts and it comes from two prime sources and it comes in approximately equal concentrations, that is, the radiogenic heat generated by the radioactive decay of isotopes in the crust and the mantle, and the accretion heat or the primordial heat left over from the creation of the Earth.
Apart from this, the gravitational compression refers to a procedure in which gravity functioning on the mass of an object, compresses it, minimizing its size, and enhances the density of the object. At the center of a plant, the gravitational compression generates heat by the mechanism of Kelvin-Helmholtz.
The generation of the geological layers refers to the fundamental unit of lithostratigraphy. It is a formation comprising of some amount of rock strata, which exhibits a comparable facies, lithology, or other identical characteristics. However, the process does not directly contribute to Earth's high internal temperatures.
Living organisms use osmoregulation to balance solute and water concentrations in their cells, tissues and organs. Many marine organisms have internal solute concentrations that are similar to their environment. However, this is not typically true of freshwater and terrestrial organisms. What is likely to happen to the cells of a marine plant if placed in a freshwater environment?
If the marine plant is placed in a freshwater environment, then the cells will undergo plasmolysis.
The plants found in the freshwater surroundings are adjusted for osmoregulation in hypotonic environments. If one place this type of plant in a marine environment, that is, one with a greater concentration of dissolved salts, then the environment is considered as hypertonic environment. The cells of the plant will lose water and will go through the process of plasmolysis.
The Cell will burst or swell due to the large amount of water enters in plan call.
Explanation:The marine plant cell is hypertonic compared with fresh water. So water will enters the cell trough osmosis.Osmosis is a process by which molecules of a solvent tend to pass through a semipermeable membrane from a less concentrated solution into a more concentrated one.The cell will swell because large quantity of water enters the cell.What are some real life examples of cytoskeleton
In real life examples cytoskeleton can be :
A building frame. Roads Explanation.If we take cell as a factory, then cytoskeleton is like a building frame of that factory because it provides mechanical support that enables cells to carry out essential functions like division and movement.
If we take cell a whole society then cytoskeleton is like roads to that society because it provides a path for the movement of other organelles and materials.
Please helllp
collagen and elastic fibers make up the dense, fibrous connective tissue called?
Collagen and elastic fibers make up dense connective tissue. This type of tissue, with its combination of strength and flexibility, is notably found in tendons and ligaments.
Explanation:Collagen and elastic fibers form a crucial component of a type of connective tissue known as dense connective tissue. They combine to create the dense, fibrous connective tissue found particularly in areas where flexibility and strength are required, such as tendons and ligaments. Collagen provides strength and firmness while elastic fibers impart flexibility to the tissue. Hence, the combination of these two results in a tough, flexible tissue capable of withstanding considerable mechanical stress.
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A student will measure and record the growth of two flowering plants every day for 28 days. Plant A will be watered and fertilized, Plant B will only be watered. The student predicts fertilizer added to the soil leads to taller flowering plants. Scientific conclusions are based on scientific evidence, what evidence would support the student’s prediction?
The evidence to support the student's prediction would come from the growth measurements of the two plants over 28 days. If Plant A, which is watered and fertilized, consistently grows taller than Plant B, which is only watered, this would support the hypothesis that fertilizer aids plant growth.
Explanation:In this experiment, the evidence to support the student's prediction that fertilizer helps plants grow taller would come from comparing the measured growth of the two plants over the 28 day period.
For Plant A, which is both watered and fertilized, the growth is expected to be more substantial due to the additional nutrients provided by the fertilizer. Plant B, which is only watered, serves as a control in this experiment and its growth will provide a baseline to compare against the growth of Plant A.
The data collected through these measurements will provide the scientific evidence necessary to either confirm or refute the student's prediction. If Plant A consistently grows taller than Plant B over the 28 day period, this would support the prediction that fertilizer leads to taller flowering plants. If no significant difference in growth is observed, this would suggest that the presence of fertilizer does not significantly affect plant height.
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Which is the structure labeled b? . nasal cavity pharynx larynx trachea
The answer is B pharynx
:)
Circular motion includes all curved paths, not just movement in full circles
Answer;
The above statement is true
Explanation;
-Circular motion is a movement of an object along the circumference of a circle or rotation along a circular path. It can be uniform, with constant angular rate of rotation and constant speed, or non-uniform with a changing rate of rotation.
When an object moves in a circle at a constant speed its velocity (which is a vector) is constantly changing. Its velocity is changing not because the magnitude of the velocity is changing but because its direction is.
Answer:
true
Explanation:
Which of the following is a disadvantage associated with scientific advances?
a. decreased urbanization
b. increased energy efficiency
c. increased waste production
d. increased renewable resource use
Please select the best answer from the choices provided.
Answer:
c. increased waste production
Explanation:
Scientific advances are a boon to mankind because they really make our life easy, fast and worth living. But increased waste production is the greatest disadvantage of scientific advances. In recent years, various industries have been established to meet the ever increasing demands of scientific equipments, various chemicals, goods required for use in day to day life etc. After manufacturing goods these industries are left with a lot of toxic and hazardous waste products which they either dump in nearby water bodies or open land which leads to soil pollution, water pollution and air pollution.
Which protein is responsible for unveiling the dna double helix 2 strands to prepare it for copying
The correct answer is DNA helicase.
DNA helicases help in the unwinding of DNA. They play an essential function at the time of DNA replication as they distinct the double-stranded DNA into single strands, and permit each strand to undergo copying or duplication.
It works by melting the hydrogen bonds, which holds the DNA into the double helical composition. The region of the DNA where the DNA helicase has unzipped the DNA is called replication fork.
By the 1900s what type of evidence was being collected at crime scenes to help positively identify suspects by one particularly unique trait
Answer:
By 1900, Fingerprint was the evidence which was collected at crime scenes to help positively identify suspects by one particularly unique trait. No two people can have the same type of fingerprints. It is a unique characteristic which is even not common among identical twins. Therefore, was considered as an important evidence for identification of suspects and linking them with the scene of offence. In 1904, the city of St.Louis, Missouri used fingerprint evidence for the first time for criminal identification.
Which part of the larynx is the muscle that opens and closes the airway? a glottis
b cricoid cartilage c thyroid cartilage d vocal folds
What is a defining feature of mammals that is not present in most other vertebrates?
A. Mammals reproduce through internal fertilization.
B. Mammals maintain a constant body temperature.
C. Mammals can produce milk for their offspring.
D. Mammals have a nervous system with a spinal cord.
Answer:
The correct answer is C. Mammals can produce milk for their offspring.
Mammals are the members of class mammalia. The word mammalia was derived from Latin word "mamma" which means "breasts" as they had a unique feature i.e. presence of mammary glands.
These glands were evolved from a special types of sweat glands and became specialized in the production of milk, especially in females.
They help the mothers in providing nourishment to the offspring.
Other features of mammals may include four chambered heart, hair and fur, three middle ear bones, etc.
I just took a test with this question and the answer is:
Mammals can produce milk for their offspring.Which event takes place first in the stages before the birth of a star? Gravity pulls gas and dust together. A protostar forms as mass increases. Nuclear fusion begins under high pressure. A protostar collapses and becomes denser.
Answer:
(A) Gravity pulls gas and dust together.
Explanation:
Answer:
Gravity pulls gas and dust together.
Explanation:
nebula (as the first stage is called): the first stage before the birth of star is seen by a slow rotating, clouds of cold gas and dust. the nebula condenses into a huge globule of gas and dust which shrink under its own gravity
Describe the structure of the nucleus and explain the function of each part.
The nucleus is an organelle found in eukaryotic cells. Inside its fully enclosed nuclear membrane, it contains the majority of the cell's genetic material. This material is organized as DNA molecules, along with a variety of proteins, to form chromosomes.
The cell nucleus is a membrane-bound structure that houses the cell's genetic information and regulates its growth and reproduction. It is the command center of a eukaryotic cell and is usually the most visible organelle in the cell, accounting for about 10% of the cell's volume.
What is nucleus?When viewing a cell image, the nucleus is one of the most visible parts of the cell. The nucleus is located in the center of the cell and contains all of the cell's chromosomes, which encode the genetic material.
It contains the cell's genetic information and regulates its growth and reproduction.
The nucleus has been defined as a membrane-bound structure that contains a cell's genetic material.
The structure of nucleus includes:
The nuclear envelope The nuclear envelope completely encircles the nucleus.The nuclear lamina. The nuclear lamina provides mechanical support for the nucleus.Chromatin. Chromatin refers to DNA that has been complexed with proteins.Nucleolus. The nucleolus is where ribosomes and ribosomal RNA are made.Thus, above mentioned is the structure of the nucleus along with the function of each part.
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Which type of mutation causes sickle cell anemia?
silent
missense
insertion
frameshift
the correct answer is missense mutation
Does anyone have the answer key for Student Exploration - Photosynthesis Lab?
Wait when is that due??
I cannot provide the answer key, but I can help you understand the concepts and steps in the photosynthesis lab.
Explanation:Sorry, but I cannot provide an answer key for a specific lab activity as it would violate academic integrity and the purpose of the lab is for students to engage in the process of scientific inquiry and discovery.
However, I can help you understand the concepts and steps involved in the photosynthesis lab, so you can find the answers on your own.
In the photosynthesis lab, students typically use a snail, an Elodea plant, and a light source.
They observe changes in the oxygen and carbon dioxide levels using a dissolved oxygen probe and a carbon dioxide probe, respectively. Through this experiment, students learn how photosynthesis produces oxygen and consumes carbon dioxide.
If you have any specific questions about the photosynthesis lab, feel free to ask, and I'll be happy to help!
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How do you determine the difference in time between the arrival of the primary (p) wave and the arrival of the secondary (s) wave during an earthquake? (in other words, how do you determine t?)add the s and p wavessubtract the s from the p wavesubtract the p from the s wavemultiply the s and the p waves
Correct answer: Subtract the p from the s
The study of earthquake is known as seismology, it study its effect and waves form. The two seismic waves studied in earthquake are P wave and S wave. P-wave is known as primary wave and S-wave is known as secondary wave.
P-wave are fastest wave and it travels through solid, liquid and gas. S-wave are slower as compared to p-wave and are second to arrive, it could pass only through solid and could not pass through liquid and gas. They travel in perpendicular direction to the vibration of the particles.
Example: Suppose the P-wave arrives at t = 1.0 s and the S-wave arrives at t = 6.0 s, then the difference between the arrival time of the P-wave and the S-wave can be calculated as:
Time Difference = 6.0 −1.0=5.0 s
The correct answer is option Subtract the P wave from the S wave.
In a seismographic centre, there are two types of waves, which are recorded, these are the P and the S waves. The P waves are the primary waves and travel fast, and the S wave is the secondary wave travels slow. The time of the approaching of the S wave increases as the as distance from the epicentre increases. The time lag between the P and the S wave determines the t. So, it can be recorded by subtracting the time of the arrival of the P wave from the timing of the arrival of the S wave.
Sally has been taking antibiotics for several weeks to help her fight an infection. Antibiotics are known to disrupt the gut flora since they work by killing bacteria. How would Sally's digestive function most likely be affected by the antibiotics?
Certain vitamins might not be synthesized and foods might not break down as well.
The use of antibiotics can disrupt Sally's gut flora, leading to digestive issues and increased susceptibility to infections like chronic diarrhea due to an overgrowth of antibiotic-resistant bacteria. Treatments such as fecal transplants have been employed to restore the natural balance of gut microbes.
Explanation:Sally's digestive function is likely to be affected by the antibiotics due to the disruption of her gut flora. Antibiotics are known to kill bacteria, including the beneficial microbes that assist with digestion and protect against infections. The loss of these normal gut bacteria can lead to an overgrowth of antibiotic-resistant bacteria like Clostridium difficile, causing severe gastric issues such as chronic diarrhea and may contribute to other health problems like yeast infections. To address these issues, treatments like fecal transplants have been utilized to reestablish a healthy intestinal microbial community.
Antibiotics are crucial in fighting off harmful bacteria that cause illness; however, they do not distinguish between harmful and helpful bacteria. This can result in the harmful side effects like diarrhea and yeast infections that Sally is experiencing. It is important for antibiotics to be prescribed and taken correctly to minimize the negative impact on normal microbiota.
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Which sentence accurately compares a tropical dry forest to a tropical rain forest?
A tropical dry rain forest is Warm and gets little rain, less than tropical rainforest. Found in places like Mexico, centural India, southeastern africa, indochina, madagascar, eastern bolivia, and other places..
Tropical rain forests typically rain all year around in locations of South America, Western Africa, and Southeast Asia.
I donot know if this is what you meant to ask or to answer a correct sentence pair but I hope this helps. :)
What are the three main processes that make up aerobic respiration? Name each process, provide a brief description of the process, and indicate the location of the process.
Answer:
Aerobic respiration is a process glucose produces energy in the presence of oxygen. In this process glucose is oxidized to produce carbon dioxide, water and energy in the form of ATP.
C₆H₁₂O₆ + 6O₂ = 6CO₂ + 6H₂O + Energy (ATP)
Three main processes that make up aerobic respiration are:
1. Glycolysis: it takes place in the cytosol of the cell. Here, glucose is oxidized to form three carbon molecule pyruvate. This process produces energy in the form of 2 ATP molecules and 2 NADH molecules. These NADH molecules carries 2 energy electrons these electrons are utilized by the electron transport chain.
2. Kreb's cycle: it takes place in the cytoplasm and mitochondria of the cell. Here, the molecules of pyruvate produced during glycolysis is utilized to produce ATP.
3. Electron transport chain: glucose is not entirely converted into ATP. The NADH molecules produce during glycolysis produces 2 energy electrons these electrons are taken up by electron transport chain in the mitochondria inner matrix. A proton gradient develops across the matrix after donation of electrons to electron transport chain. This gradient in turn produces energy in the form of ATP.
Aerobic cellular respiration has three stages: glycolysis (anaerobic process), the Krebs cycle, as well as oxidative phosphorylation.
What is aerobic respiration?Aerobic respiration is a chemical process that produces energy from carbohydrates by using oxygen. Cell respiration, aerobic metabolism, and oxidative metabolism are other terms for the same thing.
The citric acid (Krebs) cycle, an electron transport chain, and chemiosmosis are the four stages of aerobic respiration.
Aerobic respiration produces energy, which is used to power all cellular processes. The reactions produce ATP, which is then used to power other life-sustaining processes like growth, repair, and maintenance.
Glycolysis is a cytoplasmic pathway that produces energy while converting glucose into two three-carbon compounds.
The tricarboxylic acid (TCA) cycle, also known as the Krebs cycle or the citric acid cycle, is the primary source of energy for cells and is required for aerobic respiration to occur.
Oxidative phosphorylation is the method by which ATP generation is encompassed to the movement of electrons via the mitochondrial electron transport chain as well as the associated grabbing of oxygen.
Thus, these are the three main processes that makes up aerobic respiration.
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Which of these best demonstrates mutualism between certain types of bacteria and humans
I cannot find the propositions if it is a MCQ, so I will tell what a bacterial mutualism is:
Mutualism is an exchange between species (two or more) in which the mixed organisms profit from this exchange. Unlike commensalism, the associated species adapt, because the modification of one can affect the survival and reproduction of the affiliated species.
Many mutualistic bacteria live and develop in us, for example, the intestinal flora synthesizes vitamin K, a vitamin that is necessary for the absorption of our food. This same intestinal flora also hinders the proliferation of pathogenic bacteria as well as that of commensal bacteria potentially dangerous.
Bacteria and the human both get benefit from each other and this relation is mutualism. Bacteria stay inside nose, mouth, intestines, and many more areas of the body surface. They help human by giving response to pathogenic bacteria for protection of immune system.
They metabolize nutrients, vitamin production and wastes process in human’s digestive system. On the other hand, human provides them place to live. These above best demonstrates mutualism between bateria and humans.
Which geologic features help scientists determine the relative ages of rocks by their positions? Check all that apply.
magma
erosion
intrusions
index fossils
cross-cutting relationships
Answer:
Answer:
B. Erosion and D. Index fossils are geologic features that help scientists to determine relative ages of rocks by their positions.
Explanation:
The relative ages of rocks is calculated by comparing them to the ages of other ones. It involves methods namely intrusions, index fossils and cross-cutting relationship.
What are the relative ages of rocks?Relative age is determined by comparison of the rock with other rocks. It can be determined by the position of the rock.
There are two ways to determine rock age, these are relative dating and absolute dating.
This involves cross-cutting relationships, intrusions and index fossils.
Thus, B, C and D is the correct option.
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If the pressure in the habitat is increased, then the anglerfish will have a (higher/lower) health rating.
The anglerfish will exhibit healthy health rating.
The anglerfish refers to a bony fish named after its featured mode of predation. The species of the fish occur globally, most of the anglerfish are benthic, that is, they dwell close to the floor of the sea. At the depth of deep-sea, the pressure is very high, however, various creatures exhibit no issue living there.
In the absence of gas-filled spaces like swim bladder or lungs, the species in the great deep sea are less influenced by the pressure than one can think. Though the species adapted to such pressure conditions, when being brought to the surface of the sea may encounter with certain metabolic issues. Thus, increasing the pressure will cause no harm to the health of anglerfish.
Which best describes eras and periods?
A. Eras have a smaller time span than periods.
B. Eras and periods are independent of each other.
C. Eras and periods both appear at the start of the Cambrian period.
D. Eras were more recently established on the time scale than periods.
Both Eras and Periods measure time after the start of the Cambrian Period, which means that your answer is:
C.
Hope it helped,
BioTeacher101
The correct answer is option C, that is, eras and periods both appear at the start of the Cambrian period.
The first geological time period of the Paleozoic Era is known as the Cambrian period. This period ended for approximately 53 million years and signifies a dramatic burst of evolutionary modifications in life on Earth also called Cambrian Explosion.
The Cambrian period signifies an essential phase in the history of life on Earth. It is the phase when the majority of the prime animal groups initially appeared in the fossil record. An era refers to a particular time period, while a period may be used to signify towards the events, which do not exhibit any particular era or precise dates.
A nursing textbook is an example of a primary source.
a. True
b. False
Correct answer: False
A primary source provide the first hand proof and the original information of the event, object, person or work.
Example: Research data, e.g. public opinion polls, speech
Secondary source is that source of information that is not performed or collected by the individual but it is taken from old information. It is updated by someone who is not participation in the event or the research.
Example: Library, ebook, reviews.
where does thyroxine come from and what does it do?
Thyroxine is an important hormone released into the bloodstream by the thyroid gland in the body. When tyroxine is released into the blood stream, it moves through certain organs such as the kidney and liver, where most of it is changed to an active form known as triiodothyronine. Thyroxine perform important roles in brain development, heart and digestive functions, bone maintenance, controlling muscle and metabolic rate of the body.
A neutral atom of helium has 2 protons and ______ electrons. How many electrons?
2 to counteract the protons
Match the following terms and definitions. 1. an organism that can make its own food commensalism 2. a symbiotic relationship between two organisms in which one species benefits and no effect is apparent to the other species eukaryote 3. a cell that has a membrane-bound nucleus and/or organelles as its major characteristic protist 4. the study of organisms that are too small to be seen with the naked eye autotroph 5. a disease-causing organism; a germ pathogen 6. a one- or few-celled organism with chromosomes; may have characteristics of both animals and plants microbiology
The matching process has connected each scientific term with their appropriate definitions. For example, an autotroph can make its own food, a eukaryote is a cell with a nucleus, and microbiology studies microscopic organisms.
Explanation:The terms and their corresponding definitions based on your presented list are as such:
Autotroph is an organism that can manufacture its own food.Commensalism refers to a symbiotic association in which one organism benefits and the other is not apparently affected.A cell characterized by the presence of a nucleus and/or other membrane-bound organelles is considered a Eukaryote.Microbiology is the scientific study of organisms too small to be seen without the use of a microscope.Pathogen can be described as a disease-causing organism or a germ.With chromosomes and potentially characteristics of both animals and plants, a protist is a one- or few-celled organism.Learn more about Scientific term here:https://brainly.com/question/17309728
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The complete question is given below:
Match the following terms and definitions.
Part A:
1. an organism that can make its own food
2. a symbiotic relationship between two organisms in which one species benefits and no effect is apparent to the other species
3. a cell that has a membrane-bound nucleus and/or organelles as its major characteristic
4. the study of organisms that are too small to be seen with the n_aked eye
5. a disease-causing organism; a germ
6. a one- or few-celled organism with chromosomes; may have characteristics of both animals and plants
Part B:
a. eukaryote
b. protist
c. autotroph
d. pathogen
e. microbiology
f. commensalism
PLEASE HELP ME ASAP. Classify the energy sources as either renewable or nonrenewable. A. energy obtained from coal B. energy obtained from burning plant waste. C. energy obtained from water springs inside the Earth. D. energy obtained from natural gas.
Answer:
A. energy obtained from coal --------------> Non Renewable
B. energy obtained from burning plant waste. --------------> Non Renewable
C. energy obtained from water springs inside the Earth. ---------Renewable
D. energy obtained from natural gas.------------Non Renewable
Explanation:
Renewable energy resources are those which can be used again and again. This reuse is possible because either they are present in ample amount or they are produced in a very short span of time.
While a non-renewable energy resource cannot be used again and again. Also if they are recreated, they take millions of years which in other way round lead to their depletion.
Based on the above explanation, the classification is as follows -
A. energy obtained from coal --------------> Non Renewable
B. energy obtained from burning plant waste. --------------> Non Renewable
C. energy obtained from water springs inside the Earth. ---------Renewable
D. energy obtained from natural gas.------------Non Renewable
The classification of the energy sources is as follows:
A. energy obtained from coal: Non renewable
B. energy obtained from burning plant waste: Non renewable
C. energy obtained from water springs inside the Earth: Renewable
D. energy obtained from natural gas:Non renewable
What are Renewable and Non renewable energy sources?Renewable energy resources are those energy sources that are gotten from natural materials which can be used and reused again. Examples include water, soil and plants.
Non renewable energy resources are those energy sources that are artificially gotten and they can't be renewed. Examples include coal, oil,steel aluminium.
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