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belka [17]
3 years ago
5

You visit Antarctica on a cold, breezy morning as part of an exploration mission to save the Polar bears. Your team sees a polar

bear cub struggling to get out from a hole in the ice. As your team approaches to help the cub, you notice there is water beneath the ice. What is the best explanation for why water did not freeze the ocean beneath the top layer of ice?
⦁ Cool Water expands while warm water contracts. The combination of both makes ice float.
⦁ When liquid water is cooled, it contracts like all liquids do. The cohesion and adhesion interaction allow for water to exist underneath the ice.
⦁ When liquid water is cooled, it contracts like all liquids do. After that, water continues to contract indefinitely. This interaction allows for water to exist underneath the ice.
⦁ When liquid water is cooled, it contracts like one would expect until a temperature of approximately 4 degrees Celsius is reached. After that, water expands slightly making it less dense than water.
Biology
1 answer:
erica [24]3 years ago
6 0

Answer:

When liquid water is cooled it contracts like all liquids do. The cohesion and adhesion interaction allow for water to exist underneath the ice.

Explanation:

This is true for all bodies of water, lakes, rivers, ponds, etc., all freeze from the top down. It allows for aqautic life to survive during the winter months at the floor of the body of water.

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Carbo dioxide, water and sun's energy comes fron the outside.... energy and Oxygen molecule are produced
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Instinctive behaviors that are carried out regardless of earlier experience are called _____ behaviors and are a product of an i
telo118 [61]

Answer:

The correct answer is innate behavior.

Explanation:

The behavior that gets monitored by genes and goes through the process of natural selection is termed as an innate behavior. This form of behavior takes place naturally and it just requires a specific kind of stimulus in order to get initiate. Instinctive behavior is the other term for innate behavior.  

The tendency of an animal to perform a specific behavior after getting exposed to the stimulus for the first time is known as instinct. It can be said that one cannot learn innate or instinct behavior. It is performed by all the species in a similar manner irrespective of the surroundings. Caring for offspring is one of the examples of innate behaviors performed by the species that even demonstrate the basic life functions. Innate behaviors play an essential role in transmitting or passing genes to the coming generations.  

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3 years ago
What evidence supports the law of conservation of energy? Group of answer choices
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What kind of relationship does the manta ray happen to have with the sturgeon fish ?
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Symbiotic relationship

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The relationship between the manta ray and the sturgeon fish is a symbiotic relationship. It is also known as mutualism. It involves two organisms benefiting from each other. The two creatures gain something from each other.

The manta ray is cleansed of the dead skin cells and parasites by the sturgeon fish while Sturgeon fish gains a food source from the the manta ray.

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in experiment 1, which of the following factors was systematically changed so that its effects could be observed? A.light intens
Stels [109]

Explanation:

<u>A.light intensity</u>

<u />

6CO2 + 6H20 + (energy) → C6H12O6 + 6O2

Carbon dioxide + water + energy= glucose + oxygen

At the compensation point, the rate of CO2 production by respiration matches the rate of CO2 utilization in photosynthesis- there is no net CO2 production . Since photosynthesis is rate limited, the rate of energy intake can be reduced in order to reach the compensation point; lowering the light intensity would slow the rate of photolysis and thus photosynthesis. Similarly, an increase in light intensity

  • increases the rate of photosynthesis- the CO2 level would be reduced as more inorganic CO2 is fixed, together with producing O2 as waste.
  • would increase the temperature of the environment- light energy is converted to heat energy which increases temperature.
  • lead to higher levels of humidity- the heightened temperature increases the rate of evaporation of water from tissues, and thus increases the humidity (water vapor content of the surrounding air)

Further Explanation:

Photosynthesis is a chemical pathway that’s integral to producing energy in plants and other primary producers. Energy in the form of molecules of glucose is produced from light, water and carbon dioxide while oxygen is released. This occurs in several complex steps, photosynthesis is a rate limited reaction, depends on several factors including carbon dioxide concentration, ambient temperature and light intensity; the energy is retrieved from photons, I.e. particles of light, and water is used as a reducing agent. This occurs in the thykaloids, where pigment molecules like chlorophyll reside.

Occuring in several complex steps, photosynthesis is a rate limited reaction, depends on several factors including carbon dioxide concentration, ambient temperature and light intensity; the energy is retrieved from photons, I.e. particles of light, and water is used as a reducing agent. Water supplies the chlorophyll in plant cell with replacement electrons for the ones removed from photosystem II.

Additionally, water (H2O) split by light during photolysis into H+ and OH- acts as a source of oxygen along with functioning as a reducing agent; it reduces the molecule NADP to NADPH by providing H+ ions and produces molecules of the energy storage molecule ATP through an electron transport chain. This occurs in the thykaloids, where pigment molecules like chlorophyll reside. Later, in dark reactions, NADP and NADPH are used in the Calvin cycle where monosaccharides or sugars like glucose are produced after the modification of several molecules. These store energy in their bonds, which can be released in respiration in the mitochondria.

Learn more about photosynthesis at brainly.com/question/4216541

Learn more about cellular respiration at brainly.com/question/11203046

Learn more about cellular life at brainly.com/question/11259903

#LearnWithBrainly

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