Answers
Answer:
Hey there!
A beaker can not be used for measuring the volume of a liquid because it does not have precise measuring lines.
The best instrument to measure volume in the lab is a graduated cylinder.
D would be the correct answer for question 3. You only need a hot plate, a beaker, and a beaker tong to heat a reaction in a beaker.
Let me know if this helps :)
Related Questions
1. Describe what it means for a field of study to be considered a science.
Answers
Answer:
Science refers to a system of acquiring knowledge. This system uses observation and experimentation to describe and explain natural phenomena. ... Less formally, the word science often describes any systematic field of study or the knowledge gained from it.
Answer:
Science must have these five characteristics to be considered science. The five characteristics are Observable, Testable, Replicable, Reliable, and Flexible.
Explanation:
Science is a very hard thing to define so instead five characteristics are used to prove it is science.
What part of a meter is a decimeter
Answers
Answer:
Decimetre means one-tenth of a meter
1 meter = 100 cm,
[tex]\frac{1}{10}\times 100\\\\=10[/tex]
1 decimetre = 10 cm.
Explanation:
What are some variables that can change in an experiment?
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Answer:
independent and dependent variable
Explanation:
many factors can effect the out come of your independent and dependent variables.
why do populations have variaton in certain traits
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Answer:
Populations have variation in traits due to random mutation, crossing over and environmental conditions.
Answer:
the answer is Different individual have different alleles.
Hope this answer correct :)
Fill in the blanks.
1.
_______ live on the blood or tissue of other organisms.
2. The type of teeth seen in _______ are usually broad and flat.
3. Some animals have specialized cells that absorb food, break it down internally, and pass the
nutrients to other cells in a process called _____
4. _____ have some tissues such as cell walls, which require special structures like rumen to
break down in the digestive system.
5. Gas exchange involves the absorption of _____ into the bloodstream and the release of CO2
waste
6. Aquatic animals have specialized structures called ______ that allow for oxygen to be
absorbed into the bloodstream directly from water as it passes through.
7. Insects typically have ______ circulatory systems.
8. Ammonia must be converted into urea in the_______ to be excreted later in mammals as urine.
Answers
Answer:
Parasites
herbivores
phagocytosis
Plant
oxygen (O2)
gills
open
kidneys
Single-loop circulatory systems have one direction of blood flow. Typically in fish, oxygen is absorbed in the gills, flows in blood to the body organs, and back to the heart, which pumps it directly back to the gills. In double-loop circulatory systems, the heart has multiples of each chamber. Part of the heart pumps blood to the lungs, to get oxygen. This blood flows back to a different chamber where it then gets pumped to the body. Once its oxygen has been used up, it goes back to the heart to be pumped all over again to the lungs.
Freshwater animals have lower water and higher salt concentrations than the environment in their cells. This means water constantly tries to diffuse into the animals, which can bloat them. They have special cell processes that remove extra water.
Explanation:
PF
Number of cells in the plant kingdom ?
Answers
Explanation:
Hey, there !!
Your question is though because plants are both multicellular and unicellular.
So, let me give you a little idea from whatever i have known.
Inside plant kingdom, there are three divisions,
Thallophyta = composed of mostly unicellular cells.Bryophyta = composed of multicellular cells.Pteridophyta = composed of multicellular cells.These are the information. but if its about type of cells, there are various type of cells such as xylem cells,phloem cells, parenchyma cells, collenchyma cells etc.
Hope it helps..
Which of the following heart block dysrhythmias is identified by a repetitious prolonging PR interval pattern after each blocked QRS complex
a) first degree heart block
b) second degree heart block type I
c) second degree heart block type II
d) third degree heart block
Answers
Answer: Option A.
first degree heart block
Explanation:
First degree atrioventricular block is a condition that is associated with electrical condition system of the heart in which the electrical impulses is conducted from the cardiac atria to the ventricles via atrioventricular node in a slow manner compare to the normal transmission.
It is first degree great block because it is characterized by prolong PR interval on an electrocardiogram (ECG) to more than 200 msec and atrial impulse is transfered to the ventricles, which lead to regular ventricular rate.
The PR interval of the surface ECG is measured from the start of atrial depolarization (P wave) to the commensement of ventricular depolarization or QRS complex.
Each of the following is an endoplasmic reticulum function except: _______
a. peptide folding.
b. the export of protein that cannot be folded into the cytoplasm for destruction.
c. addition of carbohydrate to proteins to make glycoproteins.
d. the assembly of multimeric proteins.
e. All are endoplasmic reticulum functions.
Answers
Answer: Option E.
All are endoplasmic reticulum functions.
Explanation:
All are function of endoplasmic recticulum because
Endoplasmic recticulum is a membrane organelle that consists of two subunits, rough and smooth endoplasmic recticulum found in eukaryotes that formed flattened sacs within the cytoplasm of eukaryotic cells which syntyensises proteins, lipids and steroids, it metabolised carbohydrates by adding it to protein , help to control the concentration of calcium in the body,it detoxifies drugs, attached protein on receptor cells, assemble multimeric proteins e.t.c.
The endoplasmic recticulum comprises of two subunits which are rough and smooth endoplasmic recticulum. The major differences between rough and smooth endoplasmic recticulum is that smooth do not have RIBOSOMES and it produces lipids and rough have RIBOSOMES and produces proteins.
What does the acronym MBOs stand for? What cell type are they present in?
Answers
Answer:
Explanation:
Membrane bound organelles and eukaryotic
guys... I need answers
Answers
Answer:I have a question too HOW DO wait never mind sorry just keep reading please... ok how do I log out or switch accounts I really need to but it won’t let me congrats I wasted your time yay
Explanation:
Answer:
Hey there!
1. They are soft and spongy because they are mostly made of air spaces.
2. The trachea, which is also called the windpipe, is a tube that connects the larynx to the bronchi of the lungs.
3. Breathing through nose is better, because it can allow for more oxygen to get to the tissues.
4. You can use something called limewater. It turns a milky color in the presence of carbon dioxide.
5. Smoking and air pollutions are big causes of breathing problems.
Let me know if this helps :)
Explain the physiology of normal regulation of temperature, blood pressure, pulse, oxygen saturation, and respirations.
Answers
What is Self-pollination.
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Answer:
the pollination of a flower by pollen from the same flower or from another flower on the same plant
Answer:
pollination which is done by plants by their own is called self pollination.
What process does the grass use to harness this energy? *
Answers
Which structures are highlighted? Which structures are highlighted? duodenal glands Peyer's patches (aggregated lymphoid nodules) submucosa gastric glands
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Answer: (Note: You will find the image with the highlighted structure in the attached file)
Peyer's patches (aggregated lymphoid nodules)
Explanation:
Peyer's patches are anatomical regions located under the mucosa of the gastrointestinal tract, specifically in the lamina propria of the thin intestine. These patches are nodules or cumulus of lymphatic tissue and other accessory cells, and this is why they represent a huge part of the mucosa´s immunity system.
Peyer's patches belong to the group of lymphoid tissue associated with the intestine, composed of lymphoid follicles distributed along the gastrointestinal tract.
A lymphoid follicle is a cumulus or aggregate of lymphoid cells that do not have a well-defined structure nor organization. In general, these follicles are isolated from each other in the intestine. But in the terminal ileum (The last portion of the thin intestine) they get so close that they might form a plaque. The Peyer´s patches are formed principally by lymphocytes B that synthesize immunoglobulin A, which has an important role in immunity.
PLZ HURRY What do these chemicals have in common? Auxin, gibberellin, and cytokinin. they produce photosynthesis they are artificial regulators they are natural regulators they prevent tropisms
Answers
The answer is they are natural regulators
Which form of death has occurred in circumstances where rescue is still possible, even though there is no evidence of brain function, the heart has stopped, and breathing has stopped
Answers
Answer:
The answer is Clinical Death.
Explanation:
The form of death that occurs when the heart stops beating and there is no breathing but where rescue is still possible is "Clinical Death".
There is also "Brain Death" where all brain functions stop and there is no reversing it.
Lastly there is "Biological Death" where the organs stop working and deteriorate.
I hope this answer helps.
b. Write down the major functions of blood circulatory system.
Answers
Answer:
The circulatory system is responsible for many functions that we perform.
it transports oxygen and nutrient throughout the human body.
The blood carries useful substances to the cells and takes away the waste products of the cells, which include urea, carbon dioxide and other metabolic wastes.
blood carries white blood cells and platelets, which help protect the body by clotting wounds and fighting off pathogens.
Hope this helps (●'◡'●)
Do you agree or disagree with this statement?
"If two animals are the same genus, then they must also be the same
family, order, class, phylum and kingdom.” Explain your choice.
Answers
Answer: Yes
Explanation: genus is more specific than family, order, class, phylum and kingdom. From my experience, I can tell you that if and animal has the same genus as another, they share family, order, class, phylum and kingdom.
Dr. riehm shows you an unlabeled tissue slide and says the tissue is very resistant to stretching, tearing, and compression. he then asks you what you can conclude about the structure of the extracellular matrix (ecm)
Answers
Answer:
The correct answer would be - The ECM has abundant collagen fibers in a gel-like ground substance.
Explanation:
A tissue that is very much resistance to tearing, stretching and compression would be, due to presence of high amount of the thick bundles of the collagen fibers in its extra cellular matrix. The ground substance of such tissue is gel like.
Fibrocartilage is the tissue which is resist to stretching, compression, and tearing due to its toughness that is comes from thick bundles of collagen fibers in gel like matrix.
Thus, the correct answer is - The ECM has abundant collagen fibers in a gel-like ground substance.
Human blood consists of blood groups A, B, and O. However, there is one more blood group, AB, which contains alleles A and B in the same genotype. What is this phenomenon called?
Answers
Answer:
Blood group AB
Explanation:
Name for a huge sheet of ice covering many square miles
Answers
On your laboratory test, you are presented with a mollusc that has a closed circulatory system. You know immediately that it must belong to the class ________.
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Answer:
Cephalopoda
Explanation:
Cephalopods are the mollusk that has a closed circulatory system by simple circulation. The heart is located in the pericardic cavity and it is divided into two auricles and one ventricle. From the ventricle, the anterior aorta goes forward the head and the posterior aorta goes forward the visceral mass. The anterior aorta branches into many branchial arteries. All of them get united again in the head, in one cava vein from where the blood returns to the posterior extreme. This vein introduces into the pericardic cavity and brunches into two renal veins near the nephridium. Each branch penetrates into a nephridial sac and passes through the muscular branchial heart before it enters the gills. Blood passes from the ventricle to the branchia through many vessels. In the branchia, the blood gets oxygenated again and returns to the auricle. The posterior aorta irrigates the gonads and the mantle, and from the posterior extreme of the body, blood goes forward to the anterior body region through two veins that join the renal veins that flow into gill hearts.
Explain the strategy used by Sargon to conquer the Sumerian city-states. Why was this strategy successful?
Answers
Answer:
military strategies and cultural assimilation.
Explanation:
Sargon started his career in the Sumerian city-state of Kish as an official who eventually murdered the King of the city-state and seized control of it. Sargon raised an army and with sophisticated military techniques stormed through Mesopotamia to build an empire, became the first emperor of the region. he built the capital city of Akkad and despite their difference, Akkadian adopted Sumerian culture. This cultural assimilation of the conquered people has helped them to adjust better in the large empire.
Answer:
The strategy used by Sargon was to elevate a military army strong enough to concur the Mesopotamia. Which he later became the emperor of.
relationships between atoms in sugar molecules and atoms in large carbon-based molecules.
Answers
Both sugar molecules and large carbon-based molecules are formed from the carbon atom.
There is a great relationship between atoms in sugar molecules and atoms in large carbon-based molecules because the large carbon based molecule is formed from the combination of sugar molecules.
Carbohydrates, Lipids, Protein and Nucleic acid are the carbon based molecules which has the similarity of carbon atom in it. The sugar molecules is also made up of carbon atom so we can conclude that sugar molecules and large carbon-based molecules are formed from the carbon atom.
Learn more about carbon based molecules here: https://brainly.com/question/9339228
Learn more: https://brainly.com/question/17219561
Which type of scientific model would be best for showing how our climate may change over the next fifty years?
1. Mathematical model
2. conceptual model
3. Physical model
Answers
Answer:
it will have taken hundreds of scientists many years to build and improve; ... is just an extension of weather forecasting, but focusing on changes over ... It remains one of the great mathematical challenges
Explanation:
Matt manages a company that monitors the wastes from a company that produces radioactive byproducts. Matt is most likely a(n) medical doctor. agricultural engineer. archeologist. nuclear scientist.
Answers
Answer:
Nuclear Scientist
Explanation:
Answer:
Nuclear Scientist
Explanation:
I did it
Carnivores competing for resources may defend their territory. If a species cannot compete very well it could become extinct or move out of the territory. Another thing that could happen is that the competing species could consume all the resources and it could affect the whole food web and ecosystem. It could affect the other species in the ecosystem.
a. True
b. False
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Answer:
The correct answer is option A.
Explanation:
All living things need to compete to survive so that they can pass their genes onto the next generation, so yes the carnivores do defend their territory if there is a threat or a lack of resources.
It could also impact other species and the ecosystem since each one is connected. If the competing species consume all the resources then that species is in danger of extinction which in turn affects another species that feed on the first species.
So the answer is true.
I hope this helps.
Do all organisms rely on the sun for energy
Answers
Answer: no
Explanation:
because some plants rely on photosynthesis to survive and they use the suns energy for that but if something does not photosynthesize then it gets energy from food.
Do Now: Why do people have different shades/colors of skin?
Answers
Answer:
People have different skin colors mainly because their melanocytes produce different amount and kinds of melanin. The genetic mechanism behind human skin color is mainly regulated by the enzyme tyrosinase, which creates the color of the skin, eyes, and hair shades.
Explanation:
Answer:
People have different skin colors mainly because their melanocytes produce different amount and kinds of melanin.
Describe the interaction between the farmer, the soil, his corn plants, and the Sun. How does energy flow?
Answers
Answer:The farmer uses farm machinery to plot the soil and plant the corn. Energy from the Sun Is stored by the corn plants. When the farmer, animals, or other people eat corn, they gain the energy captured by it.
Explanation:Because it's easy knowledge