Answer:
The frequency is higher in case of echolocation sounds produced by Bottlenose dolphins. It falls in the range 40,000 Hz to 130,000 Hz, while the calls made by blue whales lies in the range of 30 Hz to 8,000 Hz.
However, the blue whale calls last a lot longer than the echolocation sounds made by the dolphins. A typical blue whale call is between 10 to 30 seconds long, while the dolphin's click is only 50 to 128 microseconds long.
Hope that answers the question, have a great day!
Oxygen is an electronic which can be defined as pure substance..we breath in oxygen and breath out carbon dioxide
<span>Heavy drinkers are about C. nine times as likely to abuse drugs than non-drinkers.
Those who abuse alcohol will also likely abuse drugs as well. This especially refers to heavy drinkers who rely on alcohol to make them forget about their daily lives. At one point, alcohol won't be enough for them, which is why they will also incorporate illegal drugs into their daily lives.</span>
Answer: monocular cue
Explanation:
The key reason one don't lose sense of depth is because of monocular cue. Our brain can still detect the actual position of the object with helps of cues even if one eye is closed.
Such cues include (but are not limited to):
- Linear perspective - the fact that additional objects ultimately travel to a single point (i.e. two roads that converge into a single point in the distance)
- Texture - objects closer to you will have more complex texture compared to objects further away from
- Interposition - objects closer to you will be farther away from objects
- Accommodation - as you look closely at items, your eyes need to accommodate and concentrate on them using your eye muscles, giving your eyes an idea of where the object is located.
Hence, Monocular Cues are used by using one eye to help sense distance.
Answer:
response to stimuli / tropism
Explanation:
The plants and animals always respond to stimuli. It is an innate character of all living things. When a bright light falls on the eye, it closes immediately. This is responding to the stimuli. When someone touches the leaves of touch-me-not plants it closes its leaves due to the external stimuli.
The plants respond to the light. Because it does photosynthesis in the presence of light. Therefore, the leaves and branches of the plants always bend towards the light. This process is called phototropism.
Similarly, the roots of the plants move towards gravity under the ground. This is called geotropism.
Besides phototropism and geotropism, other types of stimuli are there - hydrotropism(response to the water), chemotropism(response to certain chemicals).
That's why the plants growing on the windowsill move towards outside where light comes.