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Related Questions
Which of the following statements is/are true relative to laboratory glassware. (Mark all correct responses)
Some laboratory glassware, such as graduated cylinders and volumetric flasks, are relatively precise and are suitable for accurately measuring volumes in most scientific experiments
Beakers and Erlenmeyer flasks are very handy in the laboratory because they allow for very precise measurement of fluid volumes
One should always use a device which has a total volume close to the volume being measured, for instance, a 10-ml pipette would be suitable for measuring a volume of 8.3 ml.
A fluid volume in a pipette should be read from the bottom of the meniscus, not the top of the meniscus.
Answers
The following statements which are true relative to laboratory glassware include the following below:
Some laboratory glassware, such as graduated cylinders and volumetric flasks, are relatively precise and are suitable for accurately measuring volumes in most scientific experiments.One should always use a device which has a total volume close to the volume being measured, for instance, a 10-ml pipette would be suitable for measuring a volume of 8.3 ml.A fluid volume in a pipette should be read from the bottom of the meniscus, not the top of the meniscus.What is a Erlenmeyer flask?This is also known as a conical flask or titration flask and it is a type of laboratory flask which is chiefly used for transport, storage, and mixing. It has a tapered shape which makes it unsuitable for a measuring instrument.
The fluid volume in a pipette should be read from the bottom of the meniscus, not the top of the meniscus so as to avoid error due to parallax which makes the measurement inaccurate.
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when examining cells with a microscope, you can see the outlines of plant cells easily, but the outlines of animal cells are hard to see, why are animal cells harder to see then animal cells
A. the cytoplasm of plant cells is green, but the cytoplasm of animal cells is colorless
B. Plant cells have cell walls, but animal cells do not
c. Plant cells are larger then animal cells
d. Plant cells contain organelles, but animal cell do not
Answers
Answer:
B
Explanation:
does not have cell wall they have cell membranes
Answer: B: plant cells have cell walls, but animal cells do not
Explanation: These cell walls are thicker and can be seen more easily that’s the cell surface membrane that the animal cell has.
A chemical formula shows the kind and number of atoms that form a
Answers
Reason
A chemical formula is a formula that tells the kind and how many atoms of a particular element, or multiple elements, are found within a certain chemical compound.
Explain why rainforests are important to Western medicine.
Which of the three substances has the greatest porosity?
a.
gravel
b.
sand
c.
silt
d.
all are equal
Answers
Rainforests are important to Western medicine because they are home to a vast array of plant and animal species that have been used for centuries in traditional medicine by indigenous people. Many of these species contain compounds that have been found to have therapeutic properties and have been developed into drugs and treatments for various medical conditions, including cancer, malaria, and hypertension.
B. Sand typically has the greatest porosity, meaning it has the most open spaces or pores compared to gravel and silt. This allows water and air to move more easily through the substance.
Invasive species are among the leading threats to native wildlife. Learn about how they spread and how they threaten native wildlife in the United States.
Answers
Answer:
By degrading, destroying, or displacing native habitats, invasive species compete with our native wildlife for food, water, shelter, and space, and thus threaten the health and well-being of our fish, wildlife, and plants.
Explanation:
Which map feature best indicates whether two regions have the same elevation?
contour
relief
slope
symbol
Answers
Answer:
Contour
Explanation:
A contour line connects positions of equivalent height above that of a specific level of map-making, such as the mean level of the sea. A contour map represents represented with contour lines, such as a topographical map showing mountains and valleys and the thickness or gentleness of mountains, for example.
Answer:
A
Explanation:
Because I said so
2. Relative dating methods help scientists to
determine the age of the fossils within each layer
identify what rock types are present
identify the order in which rock units formed
assign a numerical date to each rock layer studied
Answers
Answer:
The correct answer is "identify the order in which rock units formed".
Explanation:
Relative dating methods are experimental approaches that allow to identify the relative order of past events. Instead of determining the absolute age of samples such as rocks or fossils, relative dating methods correlate which samples are older. Therefore, relative dating methods help scientists to identify the order in which rock units formed.
Which of the following concepts makes it legally right to reproduce a substantial portion of the works of another person with permission?
Answers
The concept that makes it legally right to reproduce a substantial portion of the works of another person with permission is Copyright. Option A
What is copyright all about?The concept of copyright grants the creator of an original work the sole rights to its use and distribution, usually for a limited time, with the intent of enabling the creator to receive compensation for their intellectual effort.
When someone else wishes to reproduce a substantial portion of those works, they must usually get permission from the copyright holder.
This permission can take the form of a license or contract that outlin the tems under which the work can be used.
The above answer is in response to the full question below;
Which of the following concepts makes it legally right to reproduce a substantial portion of the works of another person with permission?
A. Copyright
B. Fair use
C. Freedom of information
D. Intellectual freedom
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Which of the following is not true about meiosis?
A. Final cells have half of the DNA
B. More complex than mitosis
C. Muscle cells reproduce in this way
D. It produces 4 cells from one original cell
Answers
Answer:
A
Explanation:
Please guy anyone can solve this ?
Make one qualitative observation about the picture above.
Explain why this is a qualitative observation.
Make one quantitative observation about the picture above.
Explain why this is a quantitative observation.
Answers
If you're in a car during a tornado, put your safety first by finding shelter. Find a strong building or an underground refuge if you can get out of the car.
Drive to a low-lying place, such as a ditch, park the car, and stay inside while fastening your seatbelt if there is no nearby shelter. To shield oneself from flying debris, wrap up with a blanket or jacket for safety.
Overpasses should not be used as a place to hide since they might be harmful. Follow directions from authorities and keep up with local weather reporting. Always put your safety first, and act quickly to defend yourself during a tornado.
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true or false? scientist test explanations with more evidence
Answers
Answer:true
Explanation:
why are earth and moon roughly the same age as the rest of the solar system ?
Answers
Answer:
Our solar system and everything in it was created at roughly the same time.
Explanation:
The Big Bang theory
The Moon is about 4.51 billion years old – significantly older than previously thought. Previous studies had suggested that it formed about 150 million years after the solar system.
Why is there no change in the moon's surface for billions of years?Eventually, erosion can break a crater down to virtually nothing. The Moon has almost no erosion because it has no atmosphere. That means it has no wind, it has no weather, and it certainly has no plants. Almost nothing can remove marks on its surface once they are made.
How was the Earth and moon formed?The Earth formed over 4.6 billion years ago out of a mixture of dust and gas around the young sun. It grew larger thanks to countless collisions between dust particles, asteroids, and other growing planets, including one last giant impact that threw enough rock, gas, and dust into space to form the moon.
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As arizona poppy plant carries out photosynthesis, which of the following would not occur during stage 1 of the process?
Answers
Answer:
a
Explanation:
As arizona poppy plant carries out photosynthesis, Glucose is created using carbon dioxide. The Arizona poppy is a plant indigenous to the American Southwest.
What is photosynthesis ?Photosynthesis is a process that plants and other organisms used to convert light energy into chemical energy that can then be released to fuel the organism's activities via cellular respiration.
Plants absorb carbon dioxide (CO2) and water (H2O) from the air and soil during photosynthesis. Water is oxidized within the plant cell, which means it loses electrons, whereas carbon dioxide is reduced, which means it gains electrons. This converts water to oxygen and carbon dioxide to glucose.
Photosynthesis is the process by which carbon dioxide and water are converted into oxygen and glucose. The plant consumes glucose as food and produces oxygen as a byproduct. Cellular respiration is the process by which oxygen and glucose are converted into water and carbon dioxide.
Thus, As arizona poppy plant carries out photosynthesis, Glucose is created using carbon dioxide.
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List the Earth’s 4 spheres and give 1 example from your Environment for 2 of the speres.
Answers
Answer:
read this
Earth's Spheres
Everything in Earth's system can be placed into one of four major subsystems: land, water, living things, or air. These four subsystems are called “spheres.” Specifically, they are the lithosphere (land), hydrosphere (water), biosphere (living things), and atmosphere (air). Each of these four spheres can be further divided into sub-spheres. To keep things simple in this course, there will be no distinction among the sub-spheres of any of the four major spheres.
Lithosphere - Land
The lithosphere contains all of the cold, hard solid land of the planet's crust (surface), the semi-solid land underneath the crust, and the liquid land near the center of the planet.* The surface of the lithosphere is very uneven (see image on right). There are high mountain ranges like the Rockies and Andes (shown in red), huge plains or flat areas like those in Texas, Iowa, and Brazil (shown in green), and deep valleys along the ocean floor (shown in blue).
The solid, semi-solid, and liquid land of the lithosphere form layers that are physically and chemically different. If someone were to cut through Earth to its center, these layers would be revealed like the layers of an onion (see right image above). The outermost layer of the lithosphere consists of loose soil rich in nutrients, oxygen, and silicon. Beneath that layer lies a very thin, solid crust of oxygen and silicon. Next is a thick, semi-solid mantle of oxygen, silicon, iron, and magnesium. Below that is a liquid outer core of nickel and iron. At the center of Earth is a solid inner core of nickel and iron.
* Note: The word "lithosphere" can take on different meanings depending on the speaker and the audience. For example, many geologists--scientists who study the geologic formations of Earth--reserve the word "lithosphere" to mean only the cold, hard surface of Earth, not the entire inside of the planet. For the purpose of this course, however, there will be no distinction among the various layers of land. The word "lithosphere" will be used in reference to all land in Earth's system.
Hydrosphere - Water
The hydrosphere contains all the solid, liquid, and gaseous water of the planet.** It ranges from 10 to 20 kilometers in thickness. The hydrosphere extends from Earth's surface downward several kilometers into the lithosphere and upward about 12 kilometers into the atmosphere.
A small portion of the water in the hydrosphere is fresh (non-salty). This water flows as precipitation from the atmosphere down to Earth's surface, as rivers and streams along Earth's surface, and as groundwater beneath Earth's surface. Most of Earth's fresh water, however, is frozen.
Ninety-seven percent of Earth's water is salty. The salty water collects in deep valleys along Earth's surface. These large collections of salty water are referred to as oceans. The image above depicts the different temperatures one would find on oceans' surfaces. Water near the poles is very cold (shown in dark purple), while water near the equator is very warm (shown in light blue). The differences in temperature cause water to change physical states. Extremely low temperatures like those found at the poles cause water to freeze into a solid such as a polar icecap, a glacier, or an iceberg. Extremely high temperatures like those found at the equator cause water to evaporate into a gas.
** Note: Some scientists place frozen water--glaciers, icecaps, and icebergs--in its own sphere called the "cryosphere." For the purpose of this course, however, frozen water will be included as part of the hydrosphere. The word "hydrosphere" will be used in reference to all water in Earth's system.
Biosphere - Living Things
The biosphere contains all the planet's living things. This sphere includes all of the microorganisms, plants, and animals of Earth.***
Within the biosphere, living things form ecological communities based on the physical surroundings of an area. These communities are referred to as biomes. Deserts, grasslands, and tropical rainforests are three of the many types of biomes that exist within the biosphere.
select all the ways rosalba carriera emphasizes the positive shapes in the portrait of gustavus hamilton. multiple select question. by limiting the number of positive shapes by using texture to define positive shapes by changing the color of the shapes by limiting the color of the ground
Answers
To emphasize positive shapes in a portrait, an artist may use techniques Such as: Limiting the number of positive shapes, Using texture to define Positive shapes, Changing the color of the shapes, Limiting the color of The ground.
Limiting the number of positive shapes: By reducing the number of Positive shapes in the composition, an artist can draw the viewer's Attention to the remaining shapes.
Using texture to define positive shapes: By using different textures to Create positive shapes, an artist can add depth and visual interest to the Composition. This can also help to distinguish the positive shapes from Negative space.
Changing the color of the shapes: By using contrasting colors to define Positive shapes, an artist can create a sense of vibrancy and energy in the Composition. This can also help to draw the viewer's attention to the Positive shapes.
Limiting the color of the ground: . This can help to emphasize the positive Shapes and create a sense of Balance in the composition.
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2 Which statement about viruses is NOT true? A Both bacteria and viruses can be a single cell. B Both bacteria and viruses have genetic material. С C Both bacteria and viruses can reproduce on their own. D Both bacteria and viruses can metabolize nutrients.
Answers
Answer: C. Both bacteria and viruses can reproduce on their own.
Viruses can not reproduce on their own. Unlike bacteria, viruses require a host cell in a body to reproduce. Without the host cell, they can not even survive on their own.
Your favorite music performer has just announced their upcoming summer tour schedule. On
the list of stops are Chicago, New York, and Atlanta IN THIS ORDER. Your group has organized
a road trip to go to all of these performances (hotel, gas, food, ticket prices, etc.).
Two days before you leave on your road trip, the musician announces an additional city (St.
Louis) to their tour. The added concert cost is not in your original plans, but you all would really
hate to miss it.
Here is the marginal dilemma. Is the marginal benefit of attending the 4th concert worth the
added marginal costs in time and money? |
Answers
The marginal benefit of attending the 4th concert is the additional enjoyment you and your group will get from seeing your favorite musician perform.
What is marginal benefit and cost?The marginal cost of attending the 4th concert is the additional time and money you will need to spend on travel, accommodation, and tickets.
Whether or not the marginal benefit of attending the 4th concert is worth the marginal cost is a personal decision. Some factors to consider include:
How much do you enjoy seeing your favorite musician perform?How much time and money are you willing to spend on travel, accommodation, and tickets?How important is it to you to see your favorite musician perform in every city on their tour?If the marginal benefit of attending the 4th concert is greater than the marginal cost, then it is worth attending. However, if the marginal cost is greater than the marginal benefit, then it is not worth attending.
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Which statement describes a function of the female reproductive system
Answers
Fallopian tunes connect ovaries to uterus and the Fallopian tube does not lead outside.
Answer:
The answer is B
the ovaries produces the egg
Explanation:
The testes are male reproductive organs that produce and store _______, which is the male gamete containing half of the DNA in somatic cells. The typically 28-day process of egg release from the ovaries and, if fertilization does not occur, release from the body, is known as the _______ cycle. If two eggs are released and fertilized by two different sperm, then ________ twins will occur. If a hormone operates by entering a cell's nucleus and altering the expression of its DNA, then it is classified as a/n _______ hormone. Once sperm cells are mixed with seminal fluid to provide protection and nutrition, this mixture is known as _______. The bulbourethral and _______ glands play an important role in providing additional fluids to semen production. The first phases of a new zygote's growth through mitosis occur in the _______. The ________ germ layer will eventually develop into the skin and nervous system. A fetus growing in the uterus does not eat food or drink water. Instead, important nutrients, antibodies, and molecules pass from the mother through the _______. Make a list, or write a short paragraph, that explains the major stages of pregnancy after fertilization, through childbirth. Provide as much detail as possible.
Answers
Answer:
sperm,menstrual, fraternal last one is Umbilical cord
Explanation:
I looked up
Answer:
Answer:sperm
menstrual
fraternal
steroidal
semen
prostate
fallopian tube
ectoderm
placenta
After fertilization of an egg by sperm in the fallopian tubes, a blastocyst forms and implants on the uterus wall. These cells then begin to differentiate. During gastrulation, the three main germ layers form (endo, meso, and ectoderms). During neurulation, the notochord and neural tube form. The neural tube must close to avoid birth defects or conditions. The amniotic sac forms, and the placenta forms to provide a link from the mother to the fetus through the umbilical cord. During months 4-6, bones replace cartilage and organs develop. In months 7-9 the fetus matures its lungs and central nervous system. Finally, oxytocin triggers childbirth, when uterine contractions push the baby from the vagina.
Explanation:
Organelles needed to form cilia flagella
Answers
\(Centrioles. A basal body is a centriole, which is a cylinder-shaped structure composed of microtubules that in turn contain up to 13 protofilaments surrounding a hollow center. Basal bodies are the organelles needed to form cilia and flagella.{ The protofilaments are polymers of the protein tubulin.\)
during transduction, most sensory information is transmitted first to the _____ before it is sent to the____ , where it is interpreted as sight, sound, smell, touch, or taste.
Answers
During transduction, most sensory information is transmitted first to the thalamus before it is sent to the cortex, where it is interpreted as sight, sound, smell, touch, or taste.
What is the relationship between sensory information and the cerebral cortex?The relationship between sensory information and the cerebral cortex is based on the fact that information that is entered into the organism as sensory stimuli is processed in this brain region.
Therefore, with this data, we can see that the relationship between sensory information and the cerebral cortex depends on the processing of sensory stimuli.
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For a molecule of glucose to be converted into an amino acid, which of these events must occur?
A. Anitrogen atom must be added to a carbon chain.
B. A phosphorus atom must be removed from a carbon chain.
C. A hydrogen atom must be added to a carbon chain.
D. Two carbon atoms must be joined together.
Answers
Answer:
. An nitrogen atom must be added to a carbon chain.
Describe how the components of a meal containing fried fish and toast bread will be processed as they move through the digestive system of man
Answers
Answer:
Explanation:
When a meal containing fried fish and toast bread is consumed, it goes through a series of processes in the digestive system of a human. Here's a general description of how the components are processed:
1. Mouth: The process of digestion begins in the mouth. Chewing breaks down the toast bread and fish into smaller pieces, while saliva mixes with the food to start the breakdown of carbohydrates.
2. Esophagus: The chewed food, now called a bolus, is swallowed and travels down the esophagus through peristaltic contractions. The esophagus carries the food to the stomach.
3. Stomach: The stomach is responsible for further mechanical and chemical digestion. It mixes the food with stomach acid and digestive enzymes to break down proteins. The fried fish is broken down into smaller pieces through mechanical churning.
4. Small Intestine: The partially digested food leaves the stomach and enters the small intestine. Here, bile from the liver and enzymes from the pancreas break down fats, while other enzymes continue the breakdown of proteins and carbohydrates. Nutrient absorption occurs through the walls of the small intestine and is facilitated by small finger-like projections called villi.
5. Large Intestine: Any remaining undigested food, as well as water and electrolytes, pass into the large intestine. The large intestine absorbs water and electrolytes while forming waste material known as feces.
6. Rectum and Anus: The feces are stored in the rectum until elimination through the anus occurs during a bowel movement.
Throughout this process, various digestive enzymes and gastric juices are secreted at different stages to facilitate the breakdown and absorption of nutrients. The fried fish and toast bread are broken down into smaller molecules, such as proteins, carbohydrates, and fats, which are then absorbed into the bloodstream to provide energy and nourishment for the body.
Desarrollo de los Depósitos ricos en carbono?
Answers
Answer:
yes
Explanation:
Which molecule is a direct product of this cellular process?
A Glucose
B Phospholipid
C Insulin
D DNA
Answers
Answer: a
Explanation:
Question 3
Which of the following tests is part of Immunologic Method to identify microbes?
O Macroscopic morphology
Microscopic morphology
O Agglutination test of antigen-antobody
ODNA analysis using probes
L
Moving to another question will save this response.
Answers
Answer:
Agglutination test of antigen-antibody
Explanation:
Immunologic tests or methods are used to identify the presence of antibodies to a pathogen in the specimens of the patient.
Agglutination tests is an immunologic test used to identify the microbes in the specimens of the patient. In the agglutination test, a specimen such as red blood cells are taken which are then coated with antigen, if antibody forms clumps with antigen, it shows visible clumping of bacterial cells against the particular antibody.
Hence, the correct option is Agglutination test of antigen-antobody.
Which of the following is the best way to help protect and conserve the environment?
a) recycle
b) use oil instead of coal for energy
c) drive more often
d) stop contour plowing
Answers
Answer:
the awnser is a recycle
Explanation:
I NEED HELP The measure of how resistant a solid is to shape change when a force is applied.
Answers
Hardness is a measure of how resistant solid matter is to various kinds of permanent shape change when a force is applied Macroscopic hardness is generally characterized by strong intermolecular bonds, but the behavior of solid materials under force is complex; therefore, there are different measurements of hardness: scratch hardness, indentation hardness, and rebound hardness. Hardness is dependent on ductility, elastic stiffness, plasticity, strain, strength, toughness, viscoelasticity, and viscosity. Common examples of hard matter are ceramics, concrete, certain metals, and super hard materials, which can be contrasted with soft matter.
1. DRAG AND DROP THE CORRECT COMPONENTS AND REACTANTS TO FILL IN THE EQUATION
FOR PHOTOSYNTHESIS.
6602
6H₂O
GH120
WATER
LIGHT
ENERGY
GLUCOSE
WATER
REACTANT
OXYGEN
602
CARBON
DIOXIDE
12H30
REACTANTS
Answers
Refer to the image
Refer to the image attached below.
What is photosynthesis?Green plants and certain other organisms convert light energy into chemical energy through a process called photosynthesis.Light energy is gathered and utilized during photosynthesis in green plants to change the water, carbon dioxide, and minerals into oxygen- and energy-rich organic molecules (like glucose).The process can be represented by the following equation:6CO₂ + 6H₂O + Light energy → C₆H₁₂O₆ + 6O₂
(Glucose)
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Patient X has a mutation in his/her skin cells patient X is worried about passing the mutations to future children. True or false patient X should be worried about passing on the mutation in his/her cell
A. True
B. False