What is the reason behind the high surface tension of water?A) The density of the water molecule helps it to cohere to nearby water molecules, forming a skin over it
B) The polarity of the water molecule helps it to cohere to nearby water molecules, forming a skin over it
C) The weight of the water molecule helps it to cohere to nearby water molecules, forming a skin over it

Answers

Answer 1
Answer: Water is a very polar molecule.

This means there is a (slight) difference in charge between the ends of the water molecule. Water is made up of an Oxygen and two Hydrogens (H₂O). The Oxygen is a much larger atom, with 8 protons in its nucleus, whereas Hydrogen has only 1 proton.

As protons are positively charged, the oxygen has a greater positive charged, so the electrons which are negatively charged are more attracted to the Oxygen, and the bond shifts slightly towards the oxygen. As the electrons have shifted position, the negative charge has shifted position, to there is a slight negative charge nearer the Oxygen, δ⁻ (delta minus), and a slight positive charge, δ⁺ (delta plus), at the Hydrogen.

This allows strong inter molecular forces to occur, as the slightly positive Hydrogens are attracted to the slightly negative Oxygens. This force of attraction between water molecules causes them to want to 'stick together', causing a high surface tension.

So the answer is B)
Answer 2
Answer: The polarity of the water molecule helps it to cohere to nearby water molecules, forming a skin over it.

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The discovery of cells is most directly linked to thea. development of the microscope.
b. early studies of disease and its causes.
c. observations of large, unicellular organisms.
d. reproduction of organisms in a lab setting.

Answers

A. The development of a microscope.
I think it is a because with a microscope, the scientists could actually see the cells

Final answer:

The discovery of cells is most directly linked to the development of the microscope. This tool allowed early scientists to observe these tiny structures for the first time.

Explanation:

The discovery of cells is most directly linked to the development of the microscope. In the 17th century, Robert Hooke and Antonin Van Leeuwenhoek were among the first individuals to observe cells, made possible by the invention and significant improvements of optical microscopy during this era. Cells could not have been observed without this tool, as they are typically far too small to be seen by the unaided eye, cementing the major role that the development of the microscope played in discovering cells.

Learn more about Discovery of Cells here:

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The structures found within the blood perform important functions throughout the body. Which of the following is not a function of blood?a. To regulate filtration.
c. To transport nutrients.
b. To regulate body temperature.
d. To fight infection.

Answers

I believe the most likely answer is that blood does not regulate filtration. yes,  it does transport nutrients throughout the body, and it does help regulate body temperature. The blood also has white blood cells, which help to fight off foreign or not known cells and bacteria, and help to prevent infection. So, therefore, the most likely answer is A, To regulate filtration, because the blood does not regulate filtration, although it may help in the process at times.

After a several-years drought, smaller seeds became scarce, but drought-resistant trees continued producing larger seeds. What graph would BEST predict the change in beak length of the bird population?

Answers

Answer:

To predict the change in beak length of the bird population based on the scenario described, a line graph would be the most appropriate.

A line graph is a type of graph that displays data points connected by lines, showing the relationship between two variables over time. In this case, the x-axis would represent the years (time) and the y-axis would represent the beak length.

By plotting the beak length data over the years on a line graph, you can observe the trend and track the changes in beak length as the availability of smaller seeds decreased and larger seeds from drought-resistant trees became more prevalent. The line graph would allow you to visualize the overall pattern and any fluctuations in beak length over time.

This type of graph would be useful in showing the continuous change in beak length and how it correlates with the availability of different seed types. It would help in identifying any trends or patterns in the bird population's beak length response to the drought and the change in seed availability.

Explanation:

Answer:

Explanation:

  • pea plant seed

Which one of the following characteristics is not used to classify angiosperms?A. Number of seed leaves
B. Type of stems
C. Color of leaves
D. Length of life

Answers

C. Color of leaves

If the question goes like this: Which best describes plant classification? 
A.      Nonvascular plants are grouped into seedless and seeded plants. 

B.       Seedless plants are grouped into gymnosperms and angiosperms.
 
C.      Gymnosperms are grouped into monocots and dicots. 

D.       Angiosperms are grouped into monocots and dicots.
   

The best answer will be letter D. Angiosperms are grouped into monocots and dicots.
     Botanists grouped or classified together according to its characteristics. 

Which of the following is likely to be made from a thermoplastic?-a car bumper
-a grocery bag
-support beams for a building
-lawn furniture

Answers

a grocery bag

Thermoplastic is known to be a plastic material with a polymer that can be molded above a specific temperature and solidifies upon cooling. Thermoplastics can be remelted or reshaped by heating and they have low melting points. Furthermore, they usually have high concentration of polymers with amorphous structures, the material will have a poor resistance to loads but it will have an excellent elasticity.

Answer:

bag

Explanation:

Rising sea levels are a possible global consequence to a change in local environments. T or F?

Answers

Answer:

The given statement is true.

environment change refers to the disturbance or change in the environment of the area.  

The natural environment is mainly disturbed by human activities such as the burning of fossil fuels, deforestation, pollution et cetera.

Global warming is one of the consequences of change in the environment due to which the average temperature of the earth has been increasing.

Increased temperature increases the rate of melting of glaciers which ultimately increases the levels of water bodies such as oceans, seas et cetera.

Yes, it is indeed true.