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
Alex787 [66]
3 years ago
11

If two water samples of equal mass had equal salinities, which sample would be more dense: Water Sample A, which has a temperatu

re of 25°C, or Water Sample B, which has a temperature of 14°C?
Biology
2 answers:
mash [69]3 years ago
8 0

Answer:

The 14^0 sample water would be more dense.

Explanation:

As it has been proved that the density of a water depends on its salinity and its temperature.  The cold water is denser and it will be less dense when it is warm. The density is dependent on the salinity too.

So, it is evident that among the two mentioned samples the sample B with the temperature of 14 degree will be denser than the sample of salty water that has 25 degree temperature.

Marrrta [24]3 years ago
4 0

Answer:

The 14°C sample is more dense than the 25°C sample.

Explanation:

Warm water rises, cooler water falls. Warm water is less dense than cooler water. The actual density of water changes about .4% as the water temperature changes from near zero at 0°c up to about 30°c. That may not sound like much. However, that is enough density change for cold water to flow below warm water. This can have an impact on ocean currents and other phenomena in the ocean.

You might be interested in
Explain any two specific adaptation that allow animal to survive in Mountain habitat<br><br>​
IRISSAK [1]

Answer:

Among others, two adaptations might be

  1. Avoiding corporal heat loss
  2. Increasing oxygen absorption  

Explanation:

Up in the mountains, there is low oxygen, food is scarce, and adverse meteorological conditions. Animals and plants need to develop different strategies to survive. These adaptations involve not only physical and physiological changes but also behavioral changes. To mention a few adaptations, we can name:

  • Avoiding heat loss. Temperature tends to be very low at highs, so, to <u>avoid heat loss,</u> animals develop shorter legs, tails, and ears. By doing this they reduce the area or surface of heat loss and also avoid getting frozen. In mammals, the coat is also very important. A thick coat helps them maintain a constant body temperature and keep warm. Some amphibians might also develop a thicker skin as they can not regulate their temperature, and it also helps them not to dehydrate.
  • Camouflage: Coat is also helpful in camouflaging. Mammals´ hair color depends on their environment. Some animals, such as hares, can also change their fur color depending on the season. During snow seasons they turn white, and during the warmer season, they turn yellow or brown.
  • Size and metabolism: Small mammals lose heat very fast, so they need to keep active and feeding most of the time. They have an elevated metabolism to keep warm. On the contrary, big animals, such as bears, need to hibernate to reduce their metabolism and get to survive, otherwise, they would need many reserves to cover their energetic requirements.
  • Oxygen absorption: Some animals have adapted to the lack of oxygen by increasing their heart and lungs capacity as well as their capability to absorbing more oxygen from the blood.  
5 0
3 years ago
What role does base pairing play in the replication of dna ?
Naddik [55]

Answer:

It ensures that the two daughter molecules are exact copies of the parent molecule.

Explanation:

3 0
2 years ago
27) C.H.20+60, + ADP + P &gt; 600, + Molecule A + ATP<br> What is molecule A in the formula above
almond37 [142]

Answer:Glycolysis: (p. 94; Fig. 6.7A-C)

Refers to:

Occurs:

Energy investment phase: Steps 1 – 4 C-C-C-C-C-C

2 ATP

How many ATP's required (used)?

Results in 2 molecules of 3 phosphoglyceraldehyde (G3P) C-C-C C-C-C

Note: Step 5 is an isomeration step between G3P & Dihydixyacetone phosphate

Energy yielding phase: Steps 6 – 10 (G3P) C-C-C C-C-C

Explanation:

3 0
3 years ago
Assume the space shuttle's main engines produce 764,576 newtons of thrust, and the shuttle has a mass of 78,018 kg. Why does the
lesya692 [45]
With the given dimensions, it is important to note that the space shuttle is still in need of the two solid rockets because it has to be propelled in the outer space at specified speed which is only attainable if there has been initially a force applied to it prior it is sent to the outer space. 
3 0
2 years ago
someone please please help me with this I would really appreciate it with a explanation ! (No links )
defon
I think that it will be in the 103 range because as you can see it decreases over the years. But then again it could have an unexpected increase so…
5 0
3 years ago
Other questions:
  • which phrase best describes the process of meiosis? 1) Occurs in the body cells 2) Results in the genetically identical cells 3)
    12·1 answer
  • How do you fungi take in and use nutrients from their surroundings
    13·1 answer
  • Whether a drug is classified as a stimulant or a depressant depends upon its effect on _____________________.
    10·2 answers
  • In an experiment, the hypothesis is If the wavelength of the light shining on a plant is shortened, the rate of photosynthesis i
    5·1 answer
  • Calculate the total magnification of the medium power ocular objective with a 10X magnification.
    5·1 answer
  • Recombinant DNA (rDNA) _____.
    12·1 answer
  • After a search of nucleotide sequence databases, researchers identified an IRE in the 5c untranslated region of a gene encoding
    15·1 answer
  • Which of the following are characteristics of primates? Check all of the boxes that apply.
    9·2 answers
  • The two planets considered “ice giants” are
    12·1 answer
  • Could someone please come help me
    11·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!