to answer the question, we will discuss each item:
A) The results obtained during an investigation are information that can be used to design subsequent experiments that will answer questions that could not be answered in the first experiment.
B) The activity of making a prediction before performing an experiment is called hypothesis, which is based on observations. That is, first we will observe the phenomenon, and based on our reasoning we will generate a prediction or hypothesis that we will test with an experiment to see if it is correct.
C) An important part of the research is to have detailed records of each part of the experiment, this way if there is an error we can know in which part of the experiment it occurred and also we can give this information to other researchers so that they can replicate the experiment and confirm the results we obtained.
D) Finally, when the experiment is finished and when we are analyzing the information, we must take all the data into account and not only those that confirm our hypothesis, since that would give us an erroneous conclusion and would be a bias of information. Therefore, the answer is D.
Taste buds are located within the circumvallate and fungiform papillae. A) TrueB) False
There are four types of tongue papillae: (1) filiform, which is thin and wired shape and no taste buds, (2) fungiform, which is mushroom-shaped near the middle and with taste buds, (3) foliate, which is leaf-shaped near the sides and with taste buds, and (4) circumvallate papillae, which is whorls at the sides and with taste buds.
ANSWER: TRUE. There are taste buds in the fungiform and circumvallate papillae.
Studying the devastating effects of a tsunami can be included in which type of
science?
Answer:
earth science
Explanation:
earth science is the study of earth, the atmosphere, and the outer space
A cell with an 02 concentration of 8 mM and a CO2 concentration of 5 mM is placed in a solution
of 10 mM 02 and 1 mM CO2. Describe the direction of diffusion of each gas.
As the concentration of O2 is higher in solution it moves from solution to the Cell, whereas CO2 moves from cell to solution.
Cell- As in the case of bacteria and protozoans, a single cell can be an entire organism in and of itself. In multicellular creatures like higher plants and animals, specialized cell groups are arranged into tissues and organs. Prokaryotic and eukaryotic cells are the two main subtypes of cells.
Solution- A continuous variation of a number of substances in their relative proportions up to what is known as the limit for solubility. Although mixtures of gases & solids are possible, the term "solution" is most frequently used to refer to the liquid condition of matter.
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Which of the following characteristics correspond to sister chromatids?
Select all that apply.
-Replica of a single chromosome
-Formed during interphase
-Maternal and paternal pairs
-Separated during mitosis
-In humans, there are 23 pairs of these
-Numbered in a karyotype
-Attached to one another by cohesin
The characteristics formed during interphase, attached to one another by cohesin and they are replicas of a single chromosome correspond to sister chromatids (Options 1, 2 and 7).
What are sister chromatids?Sister chromatids are two identical copies of a given chromosome, which are attached by specific proteins at the centromere level. These copies are generated during the interphase (S synthesis phase) of the cell division (either mitosis or meiosis).
Therefore, with this data, we can see those sister chromatids are identical to each other and they are generated during the interphase of the cell division process.
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Which of the following processes is not associated with sexual reproduction?OOOOmeiosisfertilizationbinary fissionrecombination
Of the following processes the one that is not associated with sexual reproduction is the binary fission, that is a asexual reproduction by a separation of an organism of the body into two new bodies.
In the catabolic pathways, which two molecules are major electron acceptors? After they accept electrons, which electron carriers do they become? What is the primary function of the electron carriers?
The two molecules that are major electron acceptors in the catabolic pathways are NAD⁺ and FAD⁺, whereas NADH and FADH₂ can be considered as electron carriers. They play a fundamental role to produce energy as ATP.
What are electron carriers?The electron carriers are specific molecules that act during cellular respiration in order produce Adenosine triphosphate from ADP and phosphate, which is the energy coin of the cell.
Therefore, with this data, we can see that the electron carriers such as NADH and FADH₂ are fundamental for producing ATP, while NAD⁺ and FAD⁺ accept electrons during this process.
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Identify the part of the heart.A) AortaB) Inferior vena cavaC) Superior vena cavaD )Pulmonary vein
The image points to a vessel that comes from the bottom of the heart and reaches its top to attach to it on the top. It is called aorta.
Therefore, the correct answer is A) Aorta
What is the purpose of gathering information for your topic?
Group of answer choices
A. A scientist must research to understand the topic before being able to create a scientific hypothesis.
B. It is important to indicate to someone something you have observed in writing.
C. Gathering information would make the results skewed.
D. Creating the graph would help communicate the results efficiently.
Answer:
A. A scientist must research to understand the topic before being able to create a scientific hypothesis.
What type of food do both chemosynthesis and
photosynthesis make?
Answer:
Glucose (sugar)
Scenario: In a population of spiders living on Arachnid Island, most of the spiders are gray; a few are brown. On nearby Spider Island, there is another population of the same species. There, most of the spiders are brown; a few are gray. The ocean between these islands is full of hungry fish, and the spiders don't swim, so there is very little movement of spiders between the islands.Initial makeup of each population:Arachnid Island: 90% gray, 10% brown Spider Island: 10% gray, 90% brownThen a bridge is built to connect the islands so that tourists can ride their bikes from one to the other. The bridge is also a nice environment for spiders, so they start to move back and forth between the islands.How do you predict the makeup of the populations will be changed if this movement continues for many generations? Answer the questions below to identify and describe this change in the population.1. Is this an example of mutation, selection, genetic drift, or gene flow?
Due to the building of the bridge, now both spiders population are communicated and are able to cross, this will lead to the allele frecuency to vary, which is an example of genetic drift.
6. Cilia and flagella are used to move substances along the surface of the cell instationary cells. Which of the following is another function of cilia and flagella?A. They hold neighboring cells in a fixed position.B. They move cells through watery environments.C. They transmit waste materials away from the cell.
Cilia and flagella are structures present in the cells that can be used for movement in aqueous media, such as in the case of spermatozoa (flagellum) and Paramecium (cilia).
This means B, they move cells through watery environments, is the right answer.
Distinguish between monohybrid, dihybrid and test crosses.
In the monohybrid cross, the possible offspring of a cross between two organisms is evaluated, but only one characteristic is taken into account. While in the dihybrid cross two characteristics are evaluated.
However, unlike the monohybrid cross, in the dihybrid cross, combinations of alleles must be made in order to obtain all possible gametes and thus perform the punnet square properly. An example of a dihybrid cross and allele combination is shown in the following image:
Finally, a test cross refers to these two examples. A test cross taking into account only one trait is called a monohybrid cross. A test cross using 2 traits is a dihybrid cross.
Which classification includes more genera? A class or family?
Answer: The answer would be CLASS.
Explanation: If we refer to the taxonomic level of classification,
Domain
Kingdom
Phylum
Class
Order
Family
Genus
Species
we can see that CLASS ranks higher compared to Family. So, the Class has a wide range of genera that will belong to it than Family.
Which type of energy travels from the Sun to the earth and makes the sky appear bright during the day?. A. Sound energy
B. Mechanical energy
C. Electrical energy
D. Light energy
right answer - D. Light energy
Heartburn occurs when stomach acid escapes the stomach and burns the tissues of the esophagus. Baking soda is sometimes
used as an antacid. How does baking soda help relieve symptoms of heartburn?
Baking soda is used as an antacid during heartburn because: (a) The baking soda is serving as a buffer to take up excess H+ ions from stomach acid.
Antacid is a medication used to neutralize to excessive acid inside the stomach and also cure heartburn as well as indigestion. They can come as liquids or as tablets. The composition of antacids must include aluminum hydroxide. magnesium carbonate, etc.
Baking soda is a bicarbonate with the chemical formula NaHCO₃. It is a very versatile compound used in a variety of ways like in cooking, as a odor repellant, for cleaning and also as an antacid.
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When looking at a stalk of celery that has been sitting in red food-coloredwater. Sarah notices the celery has red lines running through it. Why is thispossible?The roots absorbed the water.The stomata allowed the water in.The xylem transported the water through the stem and to the leaves of the plant.The phloem transported the water through the stem and to the leaves of the plant.
The xylem is a special tube of the plant that take up the red food coloring. The food coloring travels into the stem and into the leaves of the celery. It is increased by vaporization from the leaves of the celery. It is like blood exploring through the human body. This shows how the plants deliver the nutrients it absorb to all its parts.
Answer - Option 3 - The xylem transported the water through the stem and to the leaves of the plant.
Why isn’t the mitochondria classified as part of the endomenbrame system
The endomembrane system encompasses the organelles that mediate the importa, export of molecules, that is, the transport of molecules from the environment to the cytoplasm and from the cytoplasm to the environment, respectively. The organelles that participate in such activities are the endoplasmic reticulum, the golgi apparatus, vacuoles and the cell membrane. Mithocondria's main purpose is energy production through oxidation of the carbohydrates/lipids we consume, thus, it is not related to molecule transport, and it can not be part of the endomembrane system.
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1. What lobe of the brain is located at the back of your head?
A.The temporal lobe of the cerebrum
B.The temporal lobe of the cerebellum
C.The occipital lobe of the cerebrum
D.The occipital lobe of the cerebellum
Answer: C
Explanation:
The occipital lobe is one of the four major lobes of the cerebral cortex and it sits at the back of the brain, therefore at the back of the head.
so the answer is C. The occipital lobe of the cerebrum
The occipital lobe of the cerebrum is located at the back of the head. Therefore, option C is correct.
The occipital lobe is located at the back of the head and is part of the cerebrum, which is the largest and most highly developed part of the brain. The occipital lobe is primarily responsible for processing visual information, including visual perception, interpretation of images, and color recognition.
It plays a crucial role in vision and is situated at the posterior (back) region of the cerebrum. It also contains the primary visual cortex, which is responsible for the initial processing of visual stimuli received from the eyes.
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What analogy is used to describe how cell replication is regulated?
Driving a car might be one common analogy used to describe how cell replication is regulated.
What is the cell replication cycle?The cell replication cycle is a sharply regulated process that resembles driving a car because there are many steps that can be stopped to continue with the process.
In the case of the cell cycle, there are major points of control that regulate the progression through this process which involve the Growth 1 phase (G1), the synthesis S phase and the Growth 2 (G2) phase. All these phases in the cell cycle are regulated by the presence of cyclin proteins that are phosphorylated by cyclin-dependent kinases in order to continue with the cell cycle.
Therefore, with this data, we can see that the cell cycle is a sharply regulated process that has several points of control where the cell recognizes that all is fine to continue with the process.
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Which is the most inclusive division of time on the geologic time scale?A. epochB. periodC. eraD. eon
The most inclusive division of time is the eon, which can be Archean, Proterozoic, Phanerozoic and they are divided into eras (Early/Middle/Late for the Archean and Proterozoic, Paleozoic, Mesozoic and Cenozoic for the Phanerozoic). Therefore, the correct answer is D. eon.
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1. In which organs is food moved through by peristalsis? (Choose all that apply)
A.stomach
B.small intestine
C.esophagus
D.liver
2. What is the substance produced by the liver that is necessary to break down fat drops into smaller fat drops?
A.bile
B.enzyme
C.acid
D.mucus
Answer:
1. A,B,C
2. A
Explanation:
1. Peristalsis is the automatic wave-like movement of the muscles that line your gastrointestinal tract. Peristalsis moves food through your digestive system, beginning in your throat when you swallow and continuing through your esophagus, stomach and intestines while you digest.
2. Bile is a fluid that is made and released by the liver and stored in the gallbladder. Bile helps with digestion. It breaks down fats into fatty acids, which can be taken into the body by the digestive tract.
The absence of special food and water conducting system restricts the body size in
The absence of special food and water conducting system restricts the body size in algae, liverworts and mosses.
Algae- The term "algae" refers to a class of mainly watery, photosynthetic, & nucleus-bearing organisms which lack the real roots, stems, and leaves of plants as well as their specialized multicellular reproductive structures.
Mosses- Mosses belong to the group of land plants called Bryophyta and are non-vascular plants. They are herbaceous (non-woody) tiny plants (some few centimeters tall) that primarily absorb nutrients and water via their leaves and use light and carbon dioxide to produce food through photosynthesis.
Liverworts- Small flowerless plants known as liverworts have thallus structures that resemble the lobes of a lobed liver. Insects and other small invertebrates depend on the 6000–8000 species of liverworts that are thought to exist.
The given question is incomplete, find below the complete question,
Q. The absence of special food and water-conducting systems restricts the body size in
A. algae, liverworts and mosses
B. liverworts, mosses and ferns
C. the bryophytes and the pteridophytes
D. the thallophytes and pteridophytes
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Poikilotetherms - how they use behavior to maintain body temperature
Because poikilotherms lack the physiological ability to generate heat, their body temperature tends to conform to that of their surroundings in the absence of any behavioral intervention. Poikilotherms include "cold-blooded" animals (Kearney et al.).
How poikilotherms maintain their body temperature?
Cold stress or heat shock can alter membrane properties in poikilotherms, causing damage and, potentially, death if not corrected quickly. Low temperature stress is mitigated by modifying membrane lipids to lower their average transition temperature.The hypothalamus, a part of our brain, regulates our internal body temperature. The hypothalamus compares our current temperature to the normal temperature of around 37°C. If our body temperature falls too low, the hypothalamus ensures that heat is generated and maintained.The metabolic rate of poikilotherms increases with increasing temperature. Poikilotherms respond to temperature increases with a standard performance curve that includes increased performance, a maximum, and then declining performance as temperature rises further.To learn more about : Poikilotherms
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watts.
6. Solve a One-Step
Equation A hair dryer is
rated at 1,200 watts. If you
use the dryer for 0.25 hours,
how much electric energy do
you use?
The electrical energy consumed is 0.3 kWh. Electrical energy is energy related to forces on electrically charged particles and electrically charged particle movement.
What is electrical energy?Electrical energy is the ability of an atom's charged particles to perform an action or move an object. Electrical energy is produced by the movement of electrons from one atom to another. When you plug in a toaster or a cellphone charger into a wall outlet, electrical energy is used to power those devices. Electricity can be either kinetic or potential.Batteries, lightning, and electrical charges moving through a wire plugged into a wall socket to power electrical appliances such as televisions and computers are all examples of electrical energy. It now even powers many of our automobiles. It can be found in the clouds above you during a storm even if you travel to the most remote parts of the planet.Therefore,
The amount of electrical energy consumed can be calculated as follows:
E = Pt
where;
P is the power (kW)
t is time (h)
E = 1.2 kW x 0.25 h
E = 0.3 kWh
As a result, the total amount of electrical energy consumed is 0.3 kWh.
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Are there difference or similarities in the cell division between plant and animal cell?
There are both similarities and differences in the cell division between plants and animals. The process by which an existing cell divides itself into two daughter cells is called mitosis.
Some differences include:
Plants only go through mitosis in their meristematic tissues, but all animal organs go through it, except their reproductive cells.In plants, spindles form without the assistance of centrioles, whereas in animals, centrioles are necessary for the process.In plants, cytokinesis occurs when a cell plate develops inside the parent cell and extends outward until the cell divides. In animals, the cell is split by pinching and cleaving.In plants, the cell plate that expands centrifugally from the inside out is the centre of division. Animals experience centripetal cleavage, which happens from the outside to the inside.Eukaryotic cells, which include both animal and plant cells, share several characteristics. Common organelles including the cell membrane, cell nucleus, mitochondria, endoplasmic reticulum, ribosomes, and Golgi apparatus are among the organelles that share similarities.
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Why are the cities of Paris, Shanghai, and Los Angeles still considered ecosystems? Use CER to explain your answer
Cities are a kind of atmosphere, due to the fact they comprise all of the additives and connections we use to outline ecosystem .An city atmosphere is surely the network of plants, animals, and people that inhabit the city environment.
It is a place bodily ruled through constructed systems like buildings, roads, sewers, and energy lines.City ecosystems are taken into consideration a atmosphere practical institution inside the extensive land-use biome. They are structurally complicated ecosystems with quite heterogeneous and dynamic spatial shape this is created and maintained through people.
Unlike herbal ecosystems however, city ecosystems are a hybrid of herbal and man-made factors whose interactions are affected now no longer handiest through the herbal environment, however additionally culture, private behaviour, politics, economics and social organisation.
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Which organ in the human body do you think is the most important? Explain.
Answer: The brain
Explanation:
The brain is arguably the most important organ in the human body. It controls and coordinates actions and reactions, allows us to think and feel, and enables us to have memories and feelings—all the things that make us human.
yes, i agree that it is your brain, *including every other organ you can't live without Imao* your brain is responsible for you walking, reacting to heat or whatever reaction. while you can't live without your heart, which is a common answer for this question, your nervous system has to be functioning properly (which is what your brain assists in) for your heart to pump correctly.
1. Correct the following paragraph describing pigments, energy and photons.
Photons are the particle that makes up light. Photons with a longer wavelength of light have more energy than photons with a shorter wavelength. Pigments can only absorb photons that have the exact amount of energy required to move
an electron to a higher energy state. If a photon's energy doesn't match exactly, the photon is absorbed. Most plants
have one kind of pigment in their leaves. If a pigment is red, it absorbs only photons with a red wavelength.
2. Correct the following describing the light dependent reactions of photosynthesis.
The first photosystem is photosystem II. In this photosystem, photons are absorbed by pigments in the antenna complex and the energy is used to create an electron at the reaction center. This excited electron is then given to ADP.
The electron carrier is then reduced which provides energy for the electron transport chain to pump H+ ions into the chloroplast stroma. Then, H+ flows through ATP synthase to power the reaction of ATP - ADP + P. The electron that
left the reaction center is replaced through condensation of a water molecule into oxygen and nitrogen. The second photosystem is photosystem I. In this photosystem, photons are absorbed by pigments in the antenna complex and the energy is used to re-excite the low-energy electron from photosystem II at the reaction center. This excited electron is then used to oxidize NADP+ into NADPH.
1. Light has two personalities. Light acts primarily as a wave, but it may also be thought of as a collection of tiny bundles of energy known as photons. If a pigment is red, it absorbs photons of different wavelengths while reflecting photons of the same wavelength.
2. Photosystems, which are huge complexes of proteins and pigments (light-absorbing molecules) that are tuned for light harvesting, play an important part in light reactions. Photosystems are classified into two types: photosystem I (PSI) and photosystem II (PSII).
How to illustrate the information?1 A photon is an electromagnetic energy packet. It is the fundamental unit of all light. The photon is also known as a "quantum" of electromagnetic energy. A photon's energy is proportional to its wavelength: longer wavelength photons have less energy, while shorter wavelength photons have more.
2 Light energy is used in light-dependent reactions to create two molecules required for the next step of photosynthesis: the energy store molecule ATP and the reduced electron transporter NADPH. Light reactions occur in the thylakoid membranes of chloroplast organelles in plants.
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Match the parts of the lac operon in E. coli, a prokaryote, to their function in generegulation.
Here we have the lac operator of E. coli, involved in lactose metabolism, regulators turn on and off the operon depending on the levels of glucose and lactose. Repressor lac blocks transcription in lactose absence, the promoter where RNA polymerase joins to start transcription, and the operator where the repressor will join. With this in mind, we can proceed to answer the question.
Repressor: Second option (protein that binds...)
Operator: Third option (sequence of nucleotides that controls...)
Promoter: First option (sequence of nucleotide where RNA...)
How do abiotic and biotic factors work together within my ecosystem provided (Excuse the sloppy drawing I made, I really tried)
Within an ecosystem, there are different components that are part of it and that work together, and this interaction, ideally, creates an equilibrium in the ecosystem.
In the picture, we can see one abiotic factor such as the sun, that it's fundamental to the development of some biotic factors such as the producers. Some other abiotic factors could be water or minerals on the soil that plants use to survive. Later on, in the food chain, we can see how different types of biotic factors interact, being the producers eaten by the primary consumers, and so on. When the biotics factors die, they are decomposed by the decomposers such as fungi, producing organic and inorganic matter, closing the cycle.
