BIOLOGY HIGH SCHOOL

Sharks have highly developed _____.thermoreceptors
photoreceptors
olfactory receptors
mechanoreceptors

Answers

Answer 1
Answer: Among the options the best answer is "olfactory receptors" - as the sharks have a very good sense of smell. (they have the other receptors, but not as developed)
however, they are more famous for their electroreceptrors- they can sense the electric current around them!
Answer 2
Answer:

Answer: olfactory receptors

Sharks have highly developed olfactory receptors. The olfactory receptors in animals allows them to sense the odor. Sharks have olfactory receptors more sensitive than humans. They have nostrils located on the underside of their snout, which they use for smelling not for breathing. The smell of the prey animal or the blood of any animal is detected by the shark with the help of these receptors.

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Which of the following does not accurately describe movement within plants?A. Changes in the concentration of nutrients affect the cause of movement of fluid through phloem.
B. Movement of sugars within the xylem results from changes in concentration of water.
C. Transpiration is the only force that drives water movement within a plant.
D. Cohesion and adhesion contribute to capillary action, which contributes to water movement.

Answers

Many movements are involved in the process of food-making of plants. one of which is transpiration. If humans sweat through his skin pores, plants sweat through its stoma (stomata-plural form) which is found underside the plants' leaf. The main purpose of transpiration is to exchange gases by releasing water through the stomata but it is not the only force that drives water movement within a plant,so, the answer would probably be letter c.
C. Transpiration is the only force that drives water movement within a plant
because i just took the test and it is the right answer

Whose roots grow in salt water?

Answers

The roots of a mangrove grow in salt water.
Hope this helps and have a great day!  :D

When bonds are broken, energy is released.
True or false

Answers

Answer:

False. When bonds are broken, energy is absorbed.

Explanation:

Atoms form bonds to seek stability, which means lower energy compared to when they were separated. This means that separating atoms by breaking bonds is not energetically favourable.

Therefore, in order to break a chemical bond we need to provide energy to the system, which makes the process endothermic (it absorbes energy).

The attached image shows an energy diagram for the H₂ molecule, showing the variation in energy during bond formation.
False. Breaking Bonds → Energy Absorbed

You have to put energy into a molecule to break its chemical bonds. The amount needed is called the bond energy. If you think about it, molecules don't spontaneously break.

The ______ force is equal to the weight of the fluid displaced by an object. gravitational friction buoyant

Answers

The buoyant force is equal to the weight of the fluid displaced by an object when the object is submerged into a liquid. Gravitational force is the force of gravity, and friction is the force created when two objects rub up against one another when at least one of the objects is in motion. 
This means the liability force of an object is equal to the weight of the fluid displace by a particular object

Why is the inner lining of the bronchiole folded?

Answers

The bronchioles or bronchioli are the passageways by which air passes through the nose or ... Theinner lining (lamina propria) of these bronchioles is thin with no glands present, and is surrounded by a layer of smooth muscle.

The two main processes by which plant cells absorb, release, and use energy area. fermentation and respiration.
b. digestion and photosynthesis.
c. photosynthesis and respiration.
d. aerobic and anaerobic respiration.

Answers

The two main processes by which plant cells absorb, release, and useenergy are photosynthesis and respiration. The answer is letter C. Theprocess of photosynthesis is present in the chloroplasts of a pant cell.Photosynthesis uses the sun’s rays in the form of electromagnetic energy toconvert it into chemical energy to be used for the plants. It needs proteinsthat are present in the plants to perform a series of necessary conversions. Moreover,the energy from the sun is the main catalyst to convert the carbohydrates inthe plant into simpler sugars. And then a series of complex reaction takesplace that their end product is oxygen. The oxygen produced is the cellularrespiration. 

Answer: C. photosynthesis and respiration.

Explanation:
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