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Brilliant_brown [7]
3 years ago
12

How is it possible for someone to put an ear to a wall and hear someone in the next room?

Biology
2 answers:
erik [133]3 years ago
5 0

The answer is A. Sound can travel through matter (solids, liquids, and gases). Sound travels faster in solids, then slower in liquids and slowest in the air. When the person in the next room makes noise, the sound travels through the air in their room, through the solid wall and in the air in your room and into your ear.






Tasya [4]3 years ago
5 0
A is the correct answer $$$$$
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A hawk is a predator for mice. what will happen if the hawk population decreases due to hunting by humans?
Mazyrski [523]
The mouse population will increase
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3 years ago
Read 2 more answers
Describe the functions of the four photoreceptor proteins in human vision.
VLD [36.1K]

Answer:

In human vision, the cone visual opsins are grouped into four photoreceptor protein families LWS, SWS1, SWS2, RH2 .

  • SWS1: produce pigments sensitive to very short wavelengths, UV-violet, 360-450 nm.

  • SWS2: produce pigments sensitive to short wavelengths, blue, 450-495 nm

  • RH2: produce pigments sensitive to medium wavelengths, green, 495-560 nm

  • LWS: produce pigments sensitive to long wavelengths, yellow-red, 560-770nm.

Explanation:

Photoreceptor proteins are light-sensitive proteins that mediate light-induced signal transduction, thus they are involved in the sensing and response to light in a variety of organisms.

The photoreceptor proteins are classified based on the chemical structure of the chromophores involved, the light absorption and on the protein sequence.

This photoreceptor proteins are located at the cone photoreceptor cells and are responsible of photopic vision.

For scotopic vision, rhodopsin is responsible. Rhodopsins are the visual pigments (visual purple) of the rod photoreceptor cell in the retina. They are responsible of human vision in dim light, as it contains a sensory protein that converts light into an electric signal.  

3 0
3 years ago
Zooplankton populations in Lake Erie and the Hudson River have declined by up to 70% since the arrival of zebra mussels because
sveticcg [70]

Answer:

Zebra mussels feed on phytoplankton, which zooplankton need as a food source.

Explanation:

The population of zooplankton in Lake Erie and the Hudson River declined due to the arrival of zebra mussels because Zebra mussels feed on phytoplankton, which is the main source food of zooplankton. So due to limited or scarcity of food in the environment, the zooplankton die due to hunger that leads to the decrease of population of zooplankton in that environment.

6 0
3 years ago
Margaret's parents are both obese. She has dieted six times, each time losing a considerable amount of weight and subsequently r
alex41 [277]

Answer: c. when she ends the diet she regains additional body fat.

Explanation:

Obesity can be defined as a genetic disorder in which the body obtains and retains too much amount of body fat. It is different from being overweight.

Obesity happens when the person obtains more amount of calories in the food then actually burned through work or exercise. Obesity increases the risk factor for arthritis, stroke and cancer.

Here, in the given situation, ending up diet is the likely cause of regaining weight again. As the unstable diet is likely to add more calories then actually utilized by the body and will be retained as fat.

5 0
3 years ago
n corn long ears (L) is dominant to short ears (l); glossy kernels (G) is dominant to opaque kernels (g) and high starch (S) is
seraphim [82]

The question is incomplete. I have attached the complete question  

Answer:

Ears and starch are linked, glossy isn't linked to either

Explanation:

The deviation from expected frequencies indicates that ears and starch genes are linked  

7 0
3 years ago
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