Answer:
obtain IACUC approval for the change.
Explanation:
The most important thing that the research team must do is to obtain IACUC approval for the change. This is because the institutional animal care and use committee (IACUC) is a requirement for any institution using animals as test subjects for their research, teachings, and/or testing. This committee focuses on making sure that the animals are not being tortured or harmed and that the testing is done correctly.
Explain how this experiment disproves the theory of spontaneous generation.
Answer:
The theory of spontaneous generation was suggests that the living organisms can come from inanimate objects, however it is an obsolete theory that is disproved by many experiments. The very first experiment that disapproved it was the experiment by Francesco Redi in 1668.
He demonstrated that maggots come from the eggs of flies instead of rotting meat. He placed raw meat inside of every jar. Half the jars he left open and the other half, he covered with mesh. In open jars he found maggots after some time but covered jars have no maggots. That proved that the maggots come from eggs of flies rather than rotten meat.
Organisms can be classified as living as long as they have most of the characteristics of life, true or false?
Answer:
true
Explanation:
eight characteristics
Fortunately, biologists have developed a list of eight characteristics shared by all living things. Characteristics are traits or qualities. Those characteristics are cellular organization, reproduction, metabolism, homeostasis, heredity, response to stimuli, growth and development, and adaptation through evolution
mark me brainliest pleasewhy 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
No single characteristic alone can describe a living thing, but all living
things share certain characteristics. Which is NOT one of these
characteristics? *
*
A. Reproduction
B. Made of a cell/Made of cells
C. Ability to walk from place to place
D. Ability to respond to the stimuli
No single characteristic alone can describe a living thing, but all living
things share certain characteristics. Which is NOT one of these
characteristics?
A. Reproduction
B. Made of a cell/Made of cells
C. Ability to walk from place to place
D. Ability to respond to the stimuli
Ability to walk from place to place is not a single characteristic that can describe a living thing.
What are the living thing?Living things are made up of a cell or cells. They obtain and use energy to survive.
What are the Characteristics of Living Things?The characteristics of living things are:
Living things are made of cells. Living things have movement. All living things have a metabolism. Living things grow.Therefore, ability to walk from place to place is not a single characteristic that can describe a living thing.
Hence , correct option is C
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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.
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.
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.
what is biology? what is the scientific method?
Answer:
Biology is the study of living things.
The scientific method is a method of procedure that has characterized natural science.
Explanation:
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.
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
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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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.
What causes cystic fibrosis?
Answer:
Cystic fibrosis is caused by a change, or mutation, in a gene called CFTR (cystic fibrosis transmembrane conductance regulator). This gene controls the flow of salt and fluids in and out of your cells. If the CFTR gene doesn't work the way it should, a sticky mucus builds up in your body.
Answer:
Hi the picture will help you better understand that explanation. :)
Explanation:
( [tex]CF[/tex] [tex]is[/tex] [tex]a[/tex] [tex]disease[/tex] ....
***‘CF stands for Cystic fibrosis‘***
It mostly happens when your parents have them. (It passes on... so you get it from your parents.)
(Answer to your question) => People who have that, it’s hard for them to breathe. Cystic fibrosis happens from changes from CFTR. Just in case if you think you have them, but you want to make sure... than you should do a Blood test, DNA test, and Sweat test. If they find out they have that, than they should try to take care of them self. But the only thing is... there is no cure for this disease. :( below is a picture...
By:✨RobloxYt✨
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.
he x-ray film shows a fracture where one side of the cortex is intact and flexed and the other side has signs of interruption (fracture). Which term best describes this type of fracture
Answer:
This is refers to as Greenstick fracture.
Explanation:
This is the type of fracture common in children less than 10 years, in which there is incomplete fracture of the bone,with ,but the cortex remain flexed.It is called green stick because it is analogous to the act of breaking a branch of a tree, which is not completely broken, from the main branch.
It is usually to due to falls,and common in kids because of their soft bones which is not completely formed and therefore will not break off completely like that of adults when fractured, but only from one side only.
How many traits does a dihybrid cross examine?
Answer:
Explanation:
Hello friend
The answer is two
Hope this helps
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If you wrap your snacks in aluminum foil, will they still be stolen by seagulls at the beach? A. If snacks are wrapped in aluminum foil, then the snacks will not be eaten by seagulls. B. If the snacks are not eaten by the seagulls, then the snacks are wrapped in foil.
Answer:
The correct option is;
A. If snack are wrapped in aluminium foil, then the snacks will not be eaten by seagulls
Explanation:
It has been observed severally that birds including seagull tend to avoid shiny objects. As have been proven by research, birds are not drawn towards shiny materials and shiny articles can be used to scare off birds. Articles like CDs, plates of aluminium and tinfoil and be arranged so as to be glaring in order to ward of the birds
Similarly, placing shinny articles around a property keeps away.
name process by which products of digestion, present in high concentrations in the ileum,would pass into the capillaries
Transportation is the process by which product of digestion present in high concentration iin the ileum
What name is given to a large network of neurons within the brainstem that is essential for maintaining wakefulness
Answer:
These are the Reticular Activating system
Explanation:
These are network of neurons that occupy lager areas of the brainstem. They are located between the brain stem and the cortex.These neurons projected anteriorly into the hypothalamus, posteriorly into the thalamus to form the ascending RAS and emerged directly into the cortex.
Generally,the RAS is made up of 4 components.These are each made up of group of nuclei .The latter are simultaneously activated by the lateral hypothalamus,which cause the release of neurotransmitters that cause the modulatory effects produced by the entire RAS
Their major function is the control of sleepiness and wakefulness in individuals.It does this with the interactions with a lot of neurotransmitters present in the brain.
Besides the above functions the RAS is also responsible for the control of focus, stability of muscles tone.
Alterations that do not change the substance's identity and composition is called
Answer: physical changes
Explanation: Physical changes are changes that do not alter the identity of a substance.
hope it helped:)
outline the steps of scientific investigation.
Answer: Make Observations, Ask a Question, Form a Hypothesis, Test Hypothesis, Draw Conclusion, Communicate Results
Explanation: Hope this helps :)
organisms require ___ and ___ to maintain themselves, grow, and reproduce
i do believe nutrients and energy because they are both needed to survive and grow.
How an exoskeleton enables invertebrates to live in a variety of habitat
Acellus
Plants use photosynthesis
to remove carbon from
the atmosphere. How
does carbon get back into
the atmosphere?
Answer: By us people breathing in oxygen and breathing out carbon dioxide.
Certain viruses contain RNA as their genetic material. One of the ways these RNA viruses replicate themselves is to:
Answer:
Abstract. RNA viruses replicate their genomes using virally encoded RNA-dependent RNA polymerase (RdRp). The RNA genome is the template for synthesis of additional RNA strands.
Explanation:
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.
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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 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)
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.
The six essential elements are shown in Image 2. Which two elements
MUST be present for a molecule to be considered organic? *
oxygen and phosphorus
O hydrogen and nitrogen
O carbon and nitrogen
carbon and hydrogen
Other:
Answer:
carbon and hydrogen
Explanation:
the hydrocarbons and their derivatives are known as organic compound as hydrocarbon are molecule containing carbon and hydrogen only thats why carbon and hydrogen are two essential component of organic compound
Which of the following is an example of a limiting factor?
A. A prolonged drought
B. Heavy rainfall
C. A small pond
A prolonged drought.
I think it is A, a prolonged drought because you have limit to water, so that is the limited factor. Hope this helps!
Answer:
A: A prolonged drought