Answer:
True
Explanation:
Before students can begin work in a laboratory, they would need proper orientation on the dos and don'ts in the laboratory. The orientation is important because the laboratory is a place where serious work is done and which houses chemicals that could be dangerous when not handled properly. The orientation is provided by an instructor who among other things explains to the students why an apron is important and should be worn at all times during laboratory activities.
The laboratory apron is important as it protects people in the laboratory against corrosive materials. It is also designed in a way that it can be easily pulled from the wearer when an accident occurs. After this orientation the students would not have to be reminded everyday by the instructor about the importance of laboratory aprons.
It is true that laboratory aprons are often required during lab activities. Your instructor will tell you whether it is mandatory or not.
When performing lab work, aprons are frequently needed to protect the wearer's clothing from possible spills, splashes, or chemical exposures.
The particular requirements for donning a lab apron, however, could differ based on the lab, institution, or type of experiment being carried out.
In order to determine whether or not a laboratory apron is required for a given lab activity, the instructor or lab supervisor is the reliable source.
To ensure safety and compliance with the unique procedures of the laboratory, it is crucial to adhere to the directions and guidelines given by the teacher.
Thus, the given statement is true.
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What is the difference between a mixture of compounds and just a compound?
Answer:
The mixture contains two or more substances mixed, but neither chemically as well as not in inexact quantity while compound includes two or more elements combined chemically and in a fixed ratio.
:)
What habitat is home to 50% of animal species, 70% of plant species, and is currently being destroyed by humans?
Answer:
Unique Biodiversity. Eighty percent of the world's known terrestrial plant and animal species can be found in forests, and tropical rainforests are home to more species than any other terrestrial habitat. A square kilometer of forest may be home to more than 1,000 species.
Explanation:
3. Summarize why the definition of species had changed over time
Answer:
Originally, the distinction was based on morphological differences. However, it soon became that some types of organisms had different forms at various stages in their lives, here is why
Explanation:
changed genes is passed on to the next generation. Most mutations are bad, but some of them make the organism more successful in its life. Organisms that inherit that favorable new gene are likely to become more abundant than others of the species. (geologic times)
Which statements regarding hypotheses are true? Check all that apply. Hypotheses are based on observations. Hypotheses are written when experiments are complete. Hypotheses are formed from testable questions. Hypotheses are tested with controlled experiments.
Answer: The answers are
Hypotheses are based on observations.Hypotheses are formed from testable questions.Hypotheses are tested with controlled experiments.Explanation: I just got it right on the assignment
How does the tectonic activity of the terrestrial planets compare with that of the gas giants?
All of the terrestrial planets have exhibited tectonic activity, but none of the gas giants have.
All of the gas giants have exhibited tectonic activity, but none of the terrestrial planets have.
All of the gas giants have exhibited tectonic activity, but only one terrestrial planet has.
All of the terrestrial planets have exhibited tectonic activity, but only one gas giant has.
Answer:
its (A). All of the terrestrial planets have exhibited tectonic activity, but none of the gas giants have.
All of the terrestrial planets exhibit tectonic activity, but none of the gas giants have.
Terrestrial planets exhibit compact surfaces, whereas gas planets don't have compact surfaces and they are composed of hydrogen (H) and helium (He).The planets of our solar system are Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, Neptune.Terrestrial planets: Mars, Earth, Venus and Mercury.Gas planets: Neptune, Uranus, Saturn and Jupiter.The term 'tectonic plates' refers to the pieces of the solid Earth's crust (and even the plates of other terrestrial planets). These plates exhibit a movement known as tectonic activity.Gas planets don't have a solid surface and therefore no tectonic activity can be observed in them.
In conclusion, terrestrial planets show tectonic activity, but gas giants don't have tectonic activity.
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Shyam being very inquisitive, didn’t listen to the teacher’s instruction properly. He took the thin layer of onion peel with a drop of water on the glass slide. He placed the coverslip on it and started observing the slide under a microscope. But he was unable to see the cells of onion peel properly.
Q. What do you think he might have forgotten?
PLS GIVE THE ANSWER FAST I WILL MARK YOU BRAINLIST
Answer:
he forgot to adjust the brightness and the curtain. Slowly move the knob so that the objective goes up. Continue until the image is okay
Pretty clear focus. Then use the knob, if available, for a clearer picture. If you are on a microscope with a moving specimen carrier, turn the coarse knob so that the table carrying the specimen moves down or away from the objective. This is exactly how to use a microscope focus regulator.
Explanation:
Debido a que las células de los hongos están cubiertos por una pared celular estos no tienen la capacidad de incorporar moléculas grandes y otros organismos sino que deben ingerir su alimento antes de absorberlo este tipo de digestión se denomina A. Intracelular B. Extracelular C. Quimica D. Mecanica
Answer:
B
Explanation:
Extracellular digestion is a form in which lager molecular food substances are first digested by chemical activities of enzymes and acids outside the cells,before been absorbed into the body cells.
Fungi are examples of organism with this mode of digestion. They use external source of energy to breakdown the food substances before digestion.They are called heterotrophic organism because they can not manufacture their food ,but rather depend on external source of energy derived from the organic matter from the host they feed live on,
The energy sources are the carbohydrates and proteins from the host.
The picture below shows the setup for an experiment involving a 1000 ml beaker, sitting on a bumer, filled with 500 ml of water, where
the bumer represents the Sun's energy, and the beaker of water represents Earth's oceans.
1000 L
500 m
Bumer
During the experiment, black pepper was added to the water as it boiled strongly, and the pepper moved in a circular pattern from the top
of the water to the bottom and back again. What does the circular pattern of the pepper represent?
The circular pattern of the pepper represents the convention currents that exists in boiling water as it is heated.
What are convection currents?A process that involves the transfer of energy from one location to another is a convection current.
Convection currents are caused by variations in fluid density brought on by temperature gradients. A natural convection current is the phenomenon that arises from the constant replacement of the heated fluid in the vicinity of the heat source by the adjacent present cooler fluid. Natural convection heat and mass transfer refer to the improved heat and mass transmission caused by this natural convection current.
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Which statement about nuclear fission is correct? produces very little energy produces a lot of air pollution requires large amounts of matter produces tremendous amounts of energy
Answer:
produces tremendous amounts of energy
Explanation:
Nuclear fission involves the split of the nucleus of high energy radioactive elements to produce a smaller nuclei with a high amount of energy which is often used to generate electricity.
It is also a very clean source of energy due to its inability to produce carbon compounds which are mostly associated with air pollution. It also doesn’t involve a large amount of matter.
Create 3
questions that
could be
answered using
the data shown in
the bar graph. Be
sure to number
your questions:
Answer:
1.what are the differences in each bar graph
2.what does each bar graph represent
3.in what time period did the Forrest change
In diploid species, diploid cells may undergo either mitosis or meiosis. Haploid cells may undergo mitosis (for certain species) but NOT meiosis because
Answer:
The correct answer would be - Homologous chromosomes cannot pair
Explanation:
Haploid cells are the cells that have single set of chromosome or have the equal number of chromosome as their parent cells. Haploid cells are denoted by the n. Haploid cells are produced by the meiosis and are identical copies of their parent cells,
Haploid cells may undergo mitosis but not meiosis as their are already n number of chromosome and homologous chromosomes are can not pair and meiosis is a reduction division that produces haploid cell from diploid cells.
Thus, the correct answer is - Homologous chromosomes cannot pair
A pond, rich in various microorganisms, dries up due to drought. How will the amoeba in the pond protect themselves from this unfavorable condition?
Answer:
The correct answer is : by secreting a thick cell wall which encloses many amoebae in it to prevent loss of water, forming a cyst until favorable conditions emerge
Explanation:
Amoeba protects itself in unfavorable conditions such as drought or less water or food availability. Amoeba takes back all its pseudopodia and secretes a thick cell wall which form three layer hard covering arout amoeba body.
This hard covering is known as the cyst and this process known as the encystation. Amoeba remain in this cyst form until favorable conditions emerge.
Thus, the correct answer would be - by secreting a thick cell wall which encloses many amoebae in it to prevent loss of water, forming a cyst until favorable conditions emerge
Which strategies did you include in your response about diabetes prevention? Check all that apply.
Answer: My strats about the diabetes prev. is very inclusive about most of their fat obesity problem so i would take them to a surgent to get checked out and later on tested for the diabetes lvls
Explanation:
because even if they stopped eating sugar or candy they would be extremely addicted, still which would be a big change for them and their mindset.
Each DNA molecule resulting from replication has one original strand and one new strand. This also known as _________________________replication of DNA.
Answer: if ur learning about mitosis it’s prophase
Explanation:
Answer:
it is synthesis phase
Explanation:
because during synthesis phase, the cell makes an entire copy of DNA, referred to as DNA replication.
A controlled scientific study examining variables is known as a
scientific ______ ?
Answer:
An experiment
Explanation:
The answer is an experiment
A controlled scientific study examining variables is known as a scientific experiment.
What is a scientific experiment?A scientific experiment is an experiment that is done to calculate or check out a reason for scientific things to happen. It is done with variables, these variables are controlled, independent, and dependent.
Scientific experiment container hypothesis, a procedure, and it is done by proper regulated method and instruments.
Now variables can be the components whose study we are doing or the variable which affects the component.
A control scientific experiment will be controlled by the scientist and it is to be checked that what time and what face of the experiment is going on
Thus, a scientific experiment is a carefully planned, multi-variable investigation.
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I want to design an experiment to see if drinking coffee makes students
score higher on tests. What is the independent variable in this
experiment?
Answer: students drinking coffee
Explanation:
The dependent variable is the one that DEPENDS on what is about to happen. In this situation, whether the students scored higher DEPENDS on if they drank coffee.
So the independent variable would be the fact that they drank coffee.
Hope this helps!
What is the basic unit of structure and function in living things
Cell
It is the basic structural and functional unit of live.
Every organism is made up of the things tiny cell
Answer:
Cell
Hope it helps ;)
Type your response in the box.
Based on the characteristics described, which category do you think humans belong to? Why do you think
this category?
starfish
cnidaria
nematoda
annelida
echinodermata
porifera
platyhelminthes
mollusca
arthropoda
chordata
sponges jellyfish Matworms round worms mollusks segmented insects
vertebrates
worms spiders
backbone
segmentation
endoskeleton
coelom
body cavity
bilateral symmetry
tissues
Question lacks the appropriate cladogram to represent the shared characteristics with the category however, the correct cladogram is attached with the answer.
Answer:
The correct answer is - chordata.
Explanation:
Based on the characteristics given in the question, human can be placed in the category of chordata as they have multicellular body with tissue organization and also shows bilateral symmetry.
Humans also have body cavity with coelom . Endoskeleton with backbone is the present in the humans as well and known as vertebrates. So these all the characteristic present in the chordata category only.
Thus, the correct answer is - chordata.
Glycolysis, formation of acetyl CoA, Krebs cycle and the electron transport chain are all involved in:
Answer:
breaking down of glucose
Explanation:
Glycolysis, formation of acetyl CoA, Krebs cycle and the electron transport chain are all involved in the breaking down of glucose, also known as respiration, in living organisms.
During glycolysis, glucose is transformed into 2 molecules of pyruvate with ATP and NADH being generated in the process.
The pyruvate molecules are each oxidized to acetyl CoA, a process that leads to the release of carbon dioxide and the formation of NADH.
The acetyl CoAs then undergo a series of reactions, combining with a 4-carbon molecule and generating ATP, FADH2, NADH, and releasing carbon dioxide. The 4-C molecule is also regenerated during the process. This is known as the Krebs cycle.
All the FADH2 and NADH made from the earlier steps then enter the electron transport chain where they donate their electrons to become FAD and NAD respectively. ATP is generated and water is formed through the reduction of oxygen.
Which of the following does not cause mutation? Please choose the correct answer from the following choices, and then select the submit answer button. social influences environmental influences chance chemical influences the complex process of cell division
Answer:
social influences
Explanation:
Mutation is a sudden change in the genome of an organism that is heritable. Mutation can be inherited from parents and transfer to offspring.
Environment can influence mutation this could include the soil the plant grow in, the food or drugs eaten, the chemicals expose to and its intensity.
Chemical influence cell division exposure to some chemical can inhibit cell division of increase the rate at which cell divides leading to mutation.
Mutation affects the genetic components of the individual, it is a genetic disorder. Some mutation are useful, some are deleterious
Society influence will not affect mutation.
Anthony Clement is applying for a car loan. The lending institution requires a personal net worth statement. Anthony currently has $1,085.00 in cash, and his camera is worth $635.00. He also owes Vista Travel $305.00 and Kelley Electronics $83.00. Complete a net worth statement for Anthony Clement. Select Current Date in the appropriate field. Assets should be listed in order of liquidity, so Cash should be listed first. Liabilities should be reported in alphabetic order.
Answer:
Net worth statement of Anthony
Assets
Current [tex]{}[/tex] [tex]{}[/tex] $1,085.00
Property, Camera (present value) [tex]{}[/tex] $635.00
Total Assets [tex]{}[/tex] $1,720.00
Liabilities
Money owed others (Vista Travel) [tex]{}[/tex] $305.00
Money owed others (Kelly Electronics) [tex]{}[/tex] $83.00
Total Liabilities [tex]{}[/tex] $388.00
Net Worth [tex]{}[/tex] $1,332.00
Explanation:
A net worth statement also known as a balance sheet statement is way to present the standing of a business at a particular time. It is a record of the assets and the values of the assets as well as the business liabilities and other outstanding financial obligations the business is to settle.
Carly has wavy hair. Her father has straight hair, and her mother has curly hair, which type of inheritance pattern is responsible for Carly's wavy
hain?
ОА
codominance
OB. dominant
Incomplete dominance
OD polygenic
ОЕ.
recessivem
Answer:codominance
Explanation:
Tell me if am wrong
What are the components of organ systems? Select all that apply. Cells Organs Communities Tissues
Answer:
cells tissues and organs
Explanation:
because cells make up tissues,tissues make up organs and organs make up organ systems
Based on the composition of parts, an organ system is composed of:
OrgansTissues, andCellsWhat are the components of organ systems?An organ system is the highest level of organization of life.
An organ system is composed of a group of organs which work together to perform a specific function.
Organs are composed of groups of tissues performing related or specific coordinated function.
A system is composed of cells working together.
Therefore, an organ system is composed of:
OrgansTissues, andCellsLearn more about organ systems at: https://brainly.com/question/19316094
The secretion of Cortisol by the adrenal gland suppresses further secretion of ACTH by the anterior pituitary gland. What is this interaction called
Answer:
Negative feed back control
Explanation:
Hormone secretion I the body system are normally control by negative feed back.
The secretion of Cortisol by the adrenal gland suppresses further secretion of ACTH by the anterior pituitary gland interaction is called negative feedback control because a stimulus causes the release of a substance which has effects that inhibit further release of hormone. This cause cortisol hormone Concentration in the blood to be maintained within a narrow range.
It causes the reduction of its own production i.e cortisol.
Feathers in birds appear to have first evolved for insulation but later conveyed a new advantage in helping create light aerodynamic surfaces. This switch in function is an example of ______.
Answer:
ExaptationExplanation:
Exaptation is the process by which the features acquire those functions for which they were not originally selected or adapted. Feather is an example of exaptation, it has appeared in various fossils of the flightless ancestors of modern birds, it later became important for flying, Once they molded for flying it adapted for that function, It is found in both behavior and anatomy.
Hi can someone please correct me.
Which of the following is NOT a way a data table can hep you in
an experiment?
A. Collect the data
B. Interpret the data
C. Make your experiment more fun
D. Organize the data collected
Answer:
A.collect the data
What is the difference between functional anatomy and gross anatomy? (A).Functional anatomy studies the structure of organ systems; gross anatomy studies the function of organ systems. (B)Functional anatomy studies the function of the organ and organ systems; gross anatomy studies the large-scale structure of the human body. (C)Functional anatomy studies the function of organ systems; gross anatomy studies the external features of the body.
Answer:
(B)Functional anatomy studies the function of the organ and organ systems; gross anatomy studies the large-scale structure of the human body
Explanation:
Anatomy is the study of the structure of the body. Anatomical studies is important in having a better understanding of the structural characteristics and composition of a body. However, anatomy is divided into sections.
One of those parts of anatomy is GROSS anatomy, which is the study of the structures that are visible to the human eye. Hence, it is also called Macroscopic anatomy or large-scale anatomy. Functional anatomy, on the other hand, is the study of the body's structure based on their function. It is termed morphophysiology because it studies the function of organs and organ systems.
Answer:
Functional anatomy studies the structure of organ systems gross anatomy studies the function of organ systems
Explanation:
Oxygen diffuses from alveoli in the lungs into capillaries.Oxygen diffuses from alveoli in the lungs into capillaries. Oxygen enters red blood cells, where it binds to the protein hemoglobin.Oxygen enters red blood cells, where it binds to the protein hemoglobin. Oxygen diffuses from the blood to the body's tissues, and carbon dioxide diffuses from the tissues to the blood.Oxygen diffuses from the blood to the body's tissues, and carbon dioxide diffuses from the tissues to the blood. Carbon dioxide leaves the body when exhale.Carbon dioxide leaves the body when exhale. Breathing moves air in and out of the lungs.Breathing moves air in and out of the lungs.
Answer:
Oxygen diffuses from alveoli in the lungs into capillaries 3. Oxygen enters red blood cells, where it binds to the protein hemoglobin 4. Oxygen diffuses from the blood to the body's tissues, and carbon dioxide diffuses from the tissues to the ...
Explanation:
All of the homeostatic mechanisms that monitor and adjust the composition of body fluids respond to changes in the:
Answer:
The correct answer would be - extracellular fluid.
Explanation:
Changes in extracellular fluid helps the homeostatic mechanism to monitor and regulate the composition of the body fluids. This process involves regulatory hormones such as anti diuretic and aldosterone in order to maintain body fluids.
It is easy to regulation of the extracellular fluid than trying to regulate 100 trillion cells present in Intracellular fluids as ICF have 10% more water in comparison of ECF.
Thus, the correct answer is : extracellular fluid.