1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
coldgirl [10]
3 years ago
10

A friend who is not taking your Biology course fills a cup with ice and then a drink. The friend asks you why the ice in the cup

is floating, and you are able to say that Group of answer choices water vapor is less dense than liquid water. ice is denser than liquid water. convection currents caused by temperature differences push upwards on the ice. the molecules are closer together in ice than in liquid water. the molecules are farther apart in ice than in liquid water.
Biology
1 answer:
slega [8]3 years ago
4 0

Answer:

the molecules are farther apart in ice than in liquid water.

Explanation:

The correct answer would be that<u> the molecules of water are farther apart in ice than in liquid water.</u>

<em>Water molecules in ice form are usually less dense than water molecules in liquid form. The water molecules in ice usually arrange themselves in a lattice form, unlike the random form in liquid water. This arrangement makes water molecules in ice to be more evenly spread out than in their liquid counterpart. Thus, ice is usually less dense than liquid water and will obey the principle of flotation by floating on water. </em>

You might be interested in
If you block histone deacetylase, what effect would you expect to see on transcriptional activity?.
Shalnov [3]
Histone deacetylase is responsible for removing the acetyl group from the histone 3 lysine 9 residue. Remember that deacetylation is one step in converting euchromatin to heterochromatin. Because euchromatin is transcriptionally active (transcriptional machinery is able to reach gene of interest), and blocking histone deacetylase activity would result in an the DNA remaining as euchromatin, we would expect to see an increase in transcriptional activity.

So there’s your answer: An increase in transcriptional activity.
8 0
2 years ago
¿Por qué las bacterias resistentes se multiplican más rápido después de que un paciente ha tomado antibióticos en comparación co
Fofino [41]

Answer: In Spanish

¿Cómo se vuelven resistentes las bacterias a los antibióticos?

R: Las bacterias pueden volverse resistentes a los antibióticos de varias maneras. Algunas bacterias pueden "neutralizar" un antibiótico cambiándolo de una manera que lo hace inofensivo. Otros han aprendido a bombear un antibiótico fuera de la bacteria antes de que pueda causar algún daño. Algunas bacterias pueden cambiar su estructura externa, por lo que el antibiótico no tiene forma de adherirse a la bacteria que está diseñada para matar.

Después de exponerse a los antibióticos, a veces una de las bacterias puede sobrevivir porque encontró una manera de resistir el antibiótico. Si incluso una bacteria se vuelve resistente a los antibióticos, puede multiplicarse y reemplazar todas las bacterias que fueron eliminadas. Eso significa que la exposición a los antibióticos proporciona una presión selectiva que hace que las bacterias sobrevivientes sean más propensas a ser resistentes. Las bacterias también pueden volverse resistentes a través de la mutación de su material genético.

Answer in English :

How do bacteria become resistant to antibiotics?

A: Bacteria can become resistant to antibiotics through several ways. Some bacteria can “neutralize” an antibiotic by changing it in a way that makes it harmless. Others have learned how to pump an antibiotic back outside of the bacteria before it can do any harm. Some bacteria can change their outer structure so the antibiotic has no way to attach to the bacteria it is designed to kill.

After being exposed to antibiotics, sometimes one of the bacteria can survive because it found a way to resist the antibiotic. If even one bacterium becomes resistant to antibiotics, it can then multiply and replace all the bacteria that were killed off. That means that exposure to antibiotics provides selective pressure making the surviving bacteria more likely to be resistant. Bacteria can also become resistant through mutation of their genetic material.

I don't know if this help you at all.

3 0
3 years ago
35. Explain the cause and effect of nondisjunction.
Arisa [49]

Explanation:

Nondisjunction: Failure of paired chromosomes to separate (to disjoin) during cell division, so that both chromosomes go to one daughter cell and none go to the other. Nondisjunction causes errors in chromosome number, such as trisomy 21 (Down syndrome) and monosomy X (Turner syndrome). It is also a common cause of early spontaneous abortions

3 0
2 years ago
Read 2 more answers
If air pressure is getting lower what would happen to torricelli's mercury barometer?
Tcecarenko [31]
It will get lower since the pressure around the barometer gets lower

7 0
3 years ago
According to the ______________ theory, a population may go long periods of genetic stability, interspersed with short periods o
ikadub [295]
<span>This theory is called punctuated equilibrium. In this theory it is explained that there are very long periods of no change at all to a species, yet there are also bursts of evolutionary change interspersed within the time period. The period of remaining the same throughout time (most of the time) is called stasis, and is present within this theory of punctuated equilibrium.</span>
3 0
3 years ago
Read 2 more answers
Other questions:
  • The functions of the body that operate outside of conscious awareness are governed by the _______ nervous system.
    7·1 answer
  • Which of the molecules below is NOT a subunit for building macromolecules?
    10·1 answer
  • Living organisms release energy gradually. why?
    11·1 answer
  • explain how the use of chemical designed to kill grasshoppers could reduce the population of peregrine falcons
    7·1 answer
  • Neap tides, relatively weak tides, occur when the Moon is in position(s)
    10·2 answers
  • Which energy transformation occurs first in a coal-burning power plant.
    10·2 answers
  • plz help asap..Consider this statement: Earth is the only source of gravity in the solar system. Do you agree? Give your reasons
    13·1 answer
  • What did you change to make more white rabbits
    10·1 answer
  • Describe one important piece of machinery in plant cells, and how that machinery helps keep plant cells alive. Pleas help. This
    13·2 answers
  • The graph below represents the effect of enzyme concentration on the reaction rate.
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!