Answer:
dizziness, weakness , shortness of breath
TLloyd’s lab partner is looking down into a test tube while he heats the contents by using a flame. Which action should Lloyd recommend to his partner if heating must continue?
Wear safety goggles while looking into the opening of the test tube.
Cover the opening of the test tube so that no materials can boil out of it.
Move the test tube so that the opening is pointing away from all students.
Put the test tube in a hot water bath so that no water can enter its opening.
The action that should be recommended by Lloyd to his partner if the heating must continue is to move the test tube so that the opening is pointing away from all students. Thus, the correct option is C.
What are the precautions that should be taken while heating the solution?Safety and security are the foremost things that you should be required to keep in mind when performing lab experiments. You should be well aware of all its parameters.
While heating the solution, always keep away your face away from the direct opening of the test tubes, wear goggles if required, etc.
Therefore, the action that should be recommended by Lloyd to his partner if the heating must continue is to move the test tube so that the opening is pointing away from all students. Thus, the correct option is C.
To learn more about Lab experiments, refer to the link:
https://brainly.com/question/17274244
#SPJ1
Which substance is an example of organic matter?
an example of organic matter is sugar because it is the best option
Which of the following is not a natural hazard?
a
Pollution
b
Landslides
c
Earthquakes
d
Coastal erosion
Answer:
A.) Pollution
Explanation:
Pollution is not a natural hazard because pollution is mostly created by humans. For the most part, landslides, earthquakes, and coastal erosion are disasters which occur naturally. In other words, humans generally don't cause these hazards, but they are the main contributor to pollution.
Describe an example of a sustainable yield model, other than a forest, that could help you make decisions about how to use your island resources.
Sustainability is the idea that people may live on Earth and utilise resources without destroying them or affecting future generations. The biological variety, food production, average global surface temperatures, CO2 concentrations, human population, and resource depletion are the five main environmental indicators that might point people in the direction of sustainability.
How can we figure out what yield is sustainable?The foundation for determining sustainable yield is the ratio of the water level decline in the well to the pumping rate, the amount of drawdown the well exhibits for a particular pumping rate over time, and the recovery rate. Data from aquifer tests are typically more trustworthy the longer they are conducted.
Example is a fish that can be kept alive forever because they can be nourished by the underlying natural system's regenerating abilities.
For more information regarding sustainable, visit:
https://brainly.com/question/4677073
#SPJ1
Choose all that apply: which resources are most important in the geopolitical landscape?
Group of answer choices
Oil/Fossil Fuels
Water
Gold
Land
The most important resources for man now in the geopolitical landscape is Oil/Fossil Fuels; option A.
What are resources?Resources refers to the materials or substances which are used by humans for their needs either directly or indirectly.
Examples of resources are gold, petroleum, coal, wood , water, etc.
The most important resources for man now in the geopolitical landscape is Oil/Fossil Fuels since they are required to many energy dependent processes.
Learn more about resources at: https://brainly.com/question/24514288
#SPJ1
What did you include in your response? Check all that
apply.
O The melting of the pieces of chocolate one by one
is evidence that conduction occurred.
O As heat flowed through the foil bridge, heat
transferred to the pieces of chocolate, causing them
to melt.
O The heat transfer occurred between the foil bridge
and the chocolate pieces, which were in direct
contact with one another.
What evidence from the experiment shows that conduction occurred? In your answer, be sure to include the materials involved in the transfer of heat through conduction.
Sample Response: The melting of the chocolate pieces one by one showed that it was caused by heat flowing through the foil bridge. The transfer of heat happened between the foil bridge and the chocolate pieces because they were touching each other.
The conduction was made by the foil which was touching the chocolate made the chocolate slowly melt because of the tea light giving heat to the foil the foil conducted it to the chocolate causing it to melt. Thus, option "C" is correct.
What are conduction, convection and radiation?Conduction refers to the transfer of the energy from one end to the other end from the conducting material. Heat energy, and electric energy all of these can conduct. For example - heat transfer from one end of the road to another.
Convection refers to the process in which heat energy is transferred to the liquid in various manners. For example - a geyser transfers the heat energy to the water.
Radiation refers to the transfer of heat in the form of a heatwave. For example - transferring of heat from the light bulb and heater.
Therefore, the given example can help us to understand the distribution of energy on earth.
Thus, option "C" is correct.
For more information, refer to the link:-
brainly.com/question/12136944
#SPJ1
Which substance completes passive transport and facilitated diffusion
Answer: Facilitated diffusion therefore allows polar and charged molecules, such as carbohydrates, amino acids, nucleosides, and ions, to cross the plasma membrane
Explanation:
hope it helps;)
A student, who is studying two different cells A and B in cell cycle, notices that cell A has 5 picograms of DNA while cell B has 10 picograms of DNA. Both cells are from the same organism. Which of the following is the best description of the cell cycle stage of each cell?
A. Cell A is in prophase of mitosis; Cell B is in metaphase of mitosis.
B. Cell A is in G1 phase; Cell B is in G2 phase.
C. Cell A is in G1 phase; Cell B is in between G1 and S phase.
D. Cell A is in G2 phase; Cell B is in G1 phase.
Answer:
As the cell enters meiosis 1, it's DNA replicates in S phase and then reduces to half when the cell splits into two. Hence, the amount of DNA remains 10 pg.
During meiosis 2, there is no DNA replication but only division between cells, leading to 5 pg of DNA in all four daughter cells.
So, the correct option is '10 pg and 5 pg respectively'
write the structure of root
Explanation:
Typical roots contain three different sections, or zones: the meristematic zone, the zone of elongation, and the zone of differentiation. In the meristematic zone, named after the apical meristem, the plant cells undergo rapid mitotic division, creating new cells for root growth.
Describe how the design of a preparation relates to the types of supplemental materials
used in restorative dentistry.
The design of a preparation relates to the types of supplemental materials
used in restorative dentistry is discussed below:
What is the role of the oral dentist?Tooth extractions are carried out by dental and oral specialists for various reasons. A painful tooth or a tooth that has been significantly affected by decay may be the problem. Sometimes a dentist will extract a tooth to make room for dental prostheses or other devices.
When the situation becomes increasingly complicated, an oral expert rather than a dental professional may need to extract a tooth. They typically remove wisdom teeth or third molars.
The dental professional or specialist will initially numb the tooth to gradually relax the patient. Even though tooth extraction may still be distressing, it may be essential for relieving dental pain and preventing further problems.
Learn more about oral dentists here:
https://brainly.com/question/3846039
#SPJ1
Identify three bodily functions that the nervous system helps to regulate to help maintain homeostasis.
Three bodily functions that the nervous system helps to regulate to help maintain homeostasis include the release of epinephrine, thyroxine and acetylcholine.
What is Homeostasis?Homeostasis refers to the state of internal equilibrium of a biological system regarding its association with the surrounding environment.
Hormones are chemical messenger released by the nervous system that help to maintain the homeostasis.
Epinephrine is a hormone that helps the body maintain homeostasis by fighting against allergic reactions.
Moreover, thyroxine is another key messenger that modulates energy levels and growth.
In conclusion, three bodily functions that the nervous system helps to regulate to help maintain homeostasis include the release of epinephrine, thyroxine and acetylcholine.
Learn more about Homeostasis here:
https://brainly.com/question/1046675
#SPJ1
I need help with this please :(!
Answer:
A=fish. b=salamander c=tortoise d=chicken e=rabbit f=human
Explanation:
different fetuses look different ways for each species
Answer:
F is human-C is chicken-B is salamander-E is Tortoise-A is fish -D is rabbit
Explanation:
Which of the following changes to Earth is NOT caused by living organisms?
Answer:
is C, since cars and other non-living organisms release sulphur dioxide into the atmosphere
Symptoms of malaria appears when
Lawmakers discuss methods of preventing pollutants that could directly start a positive feedback loop in the area shown in the picture.
Which of these actions should they take?
A. Pass laws to help decrease soil erosion and fertilizer runoff.
B. Ban the composting of food waste and paper products.
C. Increase funding for coal and natural gas technology.
D. Regulate the number of jets flying in the upper troposphere.
Answer:
D. Regulate the number of jets flying in the upper troposphere.
What do stabilizing selection and directional selection have in common?
A. They are both forms of genetic drift.
B. They both decrease genetic variation.
C. They are both caused by female choice.
D. They both favor extreme phenotypes.
Answer:
they both decrease genetic variation
