What would be the best microscope to view living single-celled organisms in a sample of pond water? (4 points) a Transmission electron microscope b Scanning electron microscope c Compound light microscope d Dissecting microscope
Answer:
compound light microscope.
Explanation:
dissecting microscopes are used for dissecting, to not look at cells
-electron microscopes are used to look at things which are really small (i.e:specific endoplasmic reticiulums)
If two events are correlated, what must be true?(1 point) One event caused the other. Both events have the same result. Both events have the same cause. The events tend to happen together
Answer:
One event caused the other
Explanation:
A correlation refers to how related are two or more variables among each other.
Two events are correlated if the result of one of them depends on the result of the other event. Also, the probability of one of them happening will be conditioned by the occurrence of the other event.
There are different types of correlation. When two correlated variables or events have a causal relation, this means that one of them occurred because the other one occurred first. For example, let us think about a dolphin cranium. We might measure two variables, the rostrum length and the skull length. The longer the rostrum is, the longer the skull will be. The occurrence of a longer rostrum implies a longer skull. This two events are positively correlated.
Although not every correlated event is due to causality, whenever causality occurs between two variables, it means that they are correlated.
Select the correct answer. Which type of tissue performs the role of signal conduction in the body? A. connective tissue B. epithelial tissue C. muscle tissue D. nervous tissue
Answer:D. nervous tissue
Explanation:
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.
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
Which is a property of water? A: it is a crystalline at room temperature, B: it expands as it melts, C: it dissolves non-polar substances, D: it has a large capacity to hold heat
Answer: D: it has a large capacity to hold heat
Explanation:
The property of water is that it has a large capacity to hold heat. It should be noted that in order to increase the temperature of water to a certain degree, it requires a lot of energy thereby water helps to regulate the temperature.
Other properties of water are that it is an excellent solvent, it is polar, it has adhesive and also cohesive properties.
The possibility that Mongolian ruler Genghis Khan spread an unusual chromosome to nearly 16 million men living today resulted from studies of ________.
A) proteomics
B) plasmids
C) the X chromosome
D) the Y chromosome
Answer:
D. the Y chromosome
Explanation:
Men have an X and a Y chromosome while women have two X chromosomes. Since the unusual chromosome was spread to nearly 16 million men, it was most likely a Y-linked trait as only men inherit a Y chromosome. If it was an X-linked trait, both men and women would be able to get it since both inherit X chromosomes.
Hope that helps.
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.
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.
why dodder and misletoe are consdered parasites?explain
Explanation:
Dodder is classified as a parasite because it absorbs nutrients from its host. It has no roots when it's mature and gets food, water, and minerals from the host. Mistletoe is classified as a hemiparasite.Mistletoe absorbs water and minerals from its host, but makes its own food via photosynthesis.
HOPE THIS HELPS
_____ is the distance between corresponding points of adjacent waves
Helllppp!!!
Answer:
Wavelength_____ is the distance between corresponding points of adjacent waves
Explanation:
wavelength is one way of measuring the size of waves. It is the distance between two corresponding points on adjacent waves, usually measured in meters. The wavelength of a transverse wave can be measured as the distance between two adjacent crests.
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!
Can you Help me on this
Answer:
hypothesis=In science, a hypothesis is an idea or explanation that you then test through study and experimentation. Outside science, a theory or guess can also be called a hypothesis. A hypothesis is something more than a wild guess but less than a well-established theory. ... Anyone who uses the word hypothesis is making a guess.
-------------------------------------------------------------------------
experiment=An experiment is a procedure carried out to support, refute, or validate a hypothesis. ... Uses of experiments vary considerably between the natural and human sciences. Experiments typically include controls, which are designed to minimize the effects of variables other than the single independent variable.
------------------------—---———----------------observation=an act or instance of viewing or noting a fact or occurrence for some scientific or other special purpose: the observation of blood pressure under stress. the information or record secured by such an act. something that is learned in the course of observing things: My observation is that such clouds mean a storm.
-----------———-----------------------------------evidence=noun. that which tends to prove or disprove something; ground for belief; proof. ... data presented to a court or jury in proof of the facts in issue and which may include the testimony of witnesses, records, documents, or objects.
-------------------------------------———---------4 benefits to liquid ink are
Ballpoint. Ink Base: Oil. Pigment or Dye: Pigment. Ink Properties: ...
Drawing (Dip Pen) Ink Base: Water. Pigment or Dye: Dye. Ink Properties: ...
Fountain. Ink Base: Water. Pigment or Dye: Dye. ...
Rollerball. Ink Base: Water. Pigment or Dye: Both. ...
Gel. Ink Base: Water. Pigment or Dye: Pigment.
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:
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
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 ;)
why should we use CER method when approaching a question
Answer:look at explanation
Explanation: you should use the CER method because you can find evidence for a question that you know is right and make a claim for the prompt, then provide a reasoning, therefore you get a full understanding of the question and so does the teacher.
Hi can someone please correct me.
Which of the following best describes a scientific theory?
a. It cannot be changed.
b. It explains very few observations.
c. It may change.
d. It is basically speculation.
Answer:D. It is basically a speculation
The best description of a scientific theory is It may change.
Option C is correct.
How do we explain?A scientific theory is a well-substantiated explanation of some aspect of the natural world, based on a body of facts that have been repeatedly confirmed through observation and experiment. Scientific theories are not facts, but they are based on facts.
Scientific theories can change if new evidence is found that contradicts the theory. For example, the theory of gravity was once thought to be absolute, but new evidence has shown that gravity is not constant, but varies depending on the mass of the objects involved.
Option C is correct.
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what is a heart made of it
Answer:
Explanation:
he heart is composed of cardiac muscle, specialized conductive tissue, valves, blood vessels and connective tissue. Cardiac muscle, the myocardium, consists of cross-striated muscle cells, cardiomyocytes, with one centrally placed nucleus.
which of the following is a property of water that allows for it to be easily attaracted to solid materials such as glass
a. cohesion
b. Adhesion
c. Good solvent
d. Structural support
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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Malthus' ideas regarding supply and demand influenced Darwin because limited natural resources force individuals to _______ with each other, and not every individual will have the opportunity to reproduce.
Answer:
compete
Explanation:
Limited natural resources force individuals to compete with each other and only strong individuals are able to compete and thereby reproduce effectively.
According to Malthus, population growth has the capacity to outrun the supply of food, and hence, if humans must experience better living conditions, there should a form of population control by controlling the birth rate.
Darwin extrapolated from Malthus' idea and opined that limited natural resources will only make individuals compete with each other and in this capacity, weak individuals might not be able to effectively compete, thus, leading to weakness in reproducing.
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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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.
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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organisms require ___ and ___ to maintain themselves, grow, and reproduce
i do believe nutrients and energy because they are both needed to survive and grow.
HELP THIS IS DUE TODAY!!!!!
Answer:
Hey ! I think I can help with this....
a.) Marine life adds carbon dioxide to ocean water during respiration.------Hydrosphere.
b.)Plants on land release oxygen during photosynthesis.----Atmosphere.
c.Bacteria living underground convert ammonia to nitrates.---- Geosphere.
d.)The waste from livestock adds nitrogen to the soil.----Geosphere.
Explanation:
I think geosphere has to do with things concerned with land and atmosphere is concerned with air and hydrosphere is concerned with water.. Thank you for the questions.
Water is a polar molecule because it has an equal number of
Answer:
The correct answer is : proton and electron (opposite charges).
Explanation:
Water is a polar molecule as it has equal number of electron and proton. Electron and protons are present on different end of water molecule, negative charge due to electrons at end of oxygen, while positive charge at end of hydrogen due to protons.
Equal number of electron and proton make it neutral or no net charge molecule however having opposite charge on its end makes is polar.
Thus, the correct answer is: proton and electron.