Answer:
2
Explanation:
How are the herring differently from “normal hearing?
Answer: i think that's the answer
Explanation:
Military antisubmarine sonars produce intense sounds within the hearing range of most clupeid fish. The behavioral reactions of overwintering herring (Clupea harengus) to sonar signals of two different frequency ranges (1–2 and 6–7kHz), and to playback of killer whale feeding sounds, were tested in controlled exposure experiments in Vestfjorden, Norway, November 2006. The behavior of free ranging herring was monitored by two upward-looking echosounders. A vessel towing an operational naval sonar source approached and passed over one of them in a block design setup. No significant escape reactions, either vertically or horizontally, were detected in response to sonar transmissions. Killer whale feeding sounds induced vertical and horizontal movements of herring. The results indicate that neither transmission of 1–2kHz nor 6–7kHz have significant negative influence on herring on the received sound pressure level tested (127–197 and 139–209 dBrms re 1μPa, respectively). Military sonars of such frequencies and source levels may thus be operated in areas of overwintering herring without substantially affecting herring behavior or herring fishery. The avoidance during playback of killer whale sounds demonstrates the nature of an avoidance reaction and the ability of the experimental design to reveal it.
Which of the following are conductors? (Select all that apply).
rubber
metals
plastic
tile
carpet
Answer:
metals, and tile
Explanation:
i think
Answer:
metalstileExplanation:
The flow of electricity is called current. Metals are generally very good conductors, meaning they let current flow easily. Materials that do not let current flow easily are called insulators. Most nonmetal materials such as plastic, wood and rubber are insulators. The tile is a good heat conductor so it moves heat away from your feet while the carpet is a good heat insulator so it does just the opposite of the material that is the conductor. Carpet is not conductive, neither is concrete or dry wood. A flow of electricity is caused by a flow of electrons. Only materials that form electron clouds and those with free ions in aqueous states can conduct electricity.
I need help with this problem please asap
The ocean can be considered one massive food web. Remove one link from this food web and it can have devastating effects on the ecosystem. Why is it important that scientists and researchers study declines like this?
Answer:because if 1 link is removed the other link wouldn't have anything to eat.sorry if this is incorrect:>
Explanation:
Rubber is a type of _________.
radiator
distributor
insulator
conductor
How are scientists monitoring and studying the effects on the herring?
Answer:
using inverted subject-verb order.
Explanation:
what are greenhouse gases and what do they do
OOF it is the same for both
Answer:
Chemically DNA
Explanation:
that s the answer.
Which property of gas particles allows them to spread around in a closed container?
1.Diffusion
2,Density
3.Motion
4.Size
Answer:diffusion
Explanation:
Conduction can only happen when objects are in:
direct line of sight
close proximity
thermal contact
the same gravitational well
Answer:
When it’s gravitational
Explanation:
I’m pretty sure that’s the answer
Why is the law of gravity an example of a universal law?
A) Gravity exists between any two masses.
B) Gravity exists only on the earth and the moon.
C) Gravity exists for masses in a closed system only.
D) Gravity exists between small masses in an open system only.
Answer:
A) Gravity exists between any two masses.
Sorry I'm not good at explaining things and sorry if its not right, but I hope it helps! =)
Gravity exists between any two masses. The correct option is A.
What is gravitational law?The gravitational law states that in the universe every object having masses attract each other due to the force of attraction between them. This force of attraction is called a Gravitational force
The gravitational force is directly proportional to the product of the two masses and is inversely proportional to the distance between them. The earth is rotating around the sun due to this gravitational pull of the sun.
The formula to calculate the gravitational force is given as:-
F = GM₁M₂ / r²
Here G is the universal gravitational constant.
The law of gravity an example of universal law is that gravity exists between any two masses. It means that every object present on the earth and having mass attracts each other by the force of gravitation.
To know more about Gravitational force follow
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Which one describes Cryosphere A. A portion of Earth's interior, rocks and minerals, landforms, and the processes that shape Earth's surface B. All water on Earth: ocean surface water, groundwater, and glaciers; made of a limited number of elements and it is primarily comprised of oxygen and hydrogen, two elements in pure water C. Places on Earth where the water is frozen all the time D. The layers of gas surrounding planet Earth, held in place by gravity and composed of a limited number of elements, primarily nitrogen and oxygen
Answer:
A) portion of earths interior
Explanation:
Please provide an example of the biosphere, hydrosphere, and geosphere interacting...
I need help with this ASAP please :)
1. some people aren't eating
that's all i can answer on short notice
hope it helps
;)
Someone help me with this ASAP!
1. Gasses are released into the air when a volcano eruption takes place.
2. A delta is formed at the mouth of a river as sediment is carried downstream.
ANCHORAGE, Alaska (AP) Federal scientists have determined that extremely low levels of crude oil spilled by the Exxon Valdez caused heart problems in embryonic fish, a conclusion that could shape how damage is assessed in other major spills. In a study published Tuesday in the online journal Scientific Reports, researchers from the National Oceanic and Atmospheric Administration found that embryonic herring and salmon exposed to low levels of crude oil developed misshapen hearts. Metabolically, they're different," said John Incardona, a research toxicologist at the Northwest Fisheries Science Center in Seattle. "They cant grow as well. They cant swim as fast."The defects and subsequent vulnerability may explain why the herring population crashed several years after the spill in Alaska's Prince William Sound and has not recovered, scientists said. The 986-foot Exxon Valdez struck a charted Bligh Reef at 12:04 a.m. March 24, 1989, spilling 11 million gallons of crude oil. At the time, it was the largest spill in U.S. history. Oil extensively fouled shoreline, spawning habitat of herring and pink salmon, the two most important commercial fish species in Prince William Sound. Fish larvae sampled close to high concentrations of oil were found with abnormalities. Little was known in the early 1990s, however, about the effects of low-level crude oil exposure on fish in early life stages, according to the study. Pink salmon declined but recovered. The herring population collapsed three to four years after the Exxon Valdez ran aground and the role of the spill, NOAA Fisheries scientists acknowledged, remains controversial. The silvery fish is a key species because it is eaten by salmon, seabirds, and marine mammals from otters to whales. Four years after the spill, the estimated herring population based on modeling shrunk from 120 metric tons to less than 30 metric tons. For the study, the scientists temporarily exposed herring and salmon embryos to low levels of Alaska North Slope crude oil before placing them back into clean water. The threshold for harm in herring was remarkably low, Incardona said. Herring, in particular, are sensitive," in part because their eggs and yolk sacs are so much smaller. After exposure, scientists transferred fish embryos to clean water, let them grow for seven to eight months, and tested them in swim tunnels. Scientists used swimming speed as a measure of cardiorespiratory fitness. Fish exposed to the highest levels of oil swam slowest, likely making them easier targets for predators. He compared the damaged herring to infant children born with heart defects. The child doesn't grow well. Its called failure to thrive, a condition that can be corrected by a heart surgeon. That doesn't happen with fish," he said. According to water samples collected in Prince William Sound during the 1989 herring spawning season, 98 percent of the samples had oil concentrations above the level that caused heart development problems among herring in the study. Juvenile salmon with heart defects, swimming more slowly and not pumping blood as efficiently as an unharmed fish, would be more vulnerable to predators and disease. It's not much of a leap, he said, to conclude that more juvenile mortality would affect how many herring survive to be spawning adults. The findings should contribute to more accurate assessments of other spills, such as the Deepwater Horizon disaster, which replaced the Exxon Valdez spill as the largest in U.S. history. And not just other spills," Incardona said. "For us down here in Puget Sound, one of our big concerns is just urbanization and the little, tiny oil spills that happen every day as nonpoint source pollution. Certainly for both large spills and everyday chronic pollution from fossil fuel use are potentially producing the same kinds of effects."Alan Jeffers, media relations manager for Exxon Mobil Corp., said the company had no comment on the study.
Where is the questions I don’t see questions
As a person pushes a box across a floor, the energy from the person’s moving arm is transferred to the box, and the box and the floor become warm. During this process, what happens to energy?
Answer:
conserved
Explanation:
During this process the energy is conserved
What is normal hearing?
Answer:abesne of hearing loss
Explanation:Normal hearing is the absence of hearing loss.
Can someone please help me understand why i feel like no one cares and why i feel the need to cry my self to sleep or why i feel like the whole world is aginst me
Answer:yeah you guys are just weird
My Explanation: is that you need Jesus
SCIENCE:
In 2-3 complete sentences, explain how a satellite goes into orbit remains in orbit in your own words.
Use the "RAP" method to answer this question:
Restate the question
Answer the question
Prove your answer citing textual evidence from the course.
Don't forget to proofread your answer.
Answer:
A satellite goes into orbit by getting a ride with a rocket or the Space Shuttle. Gravitational pull and the velocity of the satellite help it remain in orbit.
Explanation:
When developing an experimental design, which action could a scientist take to improve the quality of the results?
A. Make only a few changes to the manipulated variable.
B. Identify any biases about the answer to the scientific question.
C. Include as many details as possible when writing the conclusion.
D. Share her ideas through peer review.
Answer:
B
Explanation:
This helps improve the quality.
The action that could a scientist take in order to improve the quality of the results is as follows:
Identify any biases about the answer to the scientific question.Thus, the correct option for this question is B.
What is an Experimental design?The Experimental design may be characterized as a methodology of research in the field of sciences in which a controlled experimental factor is exposed to special treatment with the intention of comparing with a factor kept constant.
The identification of partiality during the designing of an experiment is foremost important. This is because it significantly leads to an error or it affects the overall quality of the results on the basis of valid evidence.
Therefore, identifying any biases about the answer to the scientific question is an action that could a scientist take to improve the quality of the results. Thus, the correct option for this question is B.
To learn more about Experimental design, refer to the link:
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What are the properties of the layers of the Earth atmosphere
Answer:
The atmosphere has 4 layers: the troposphere that we live in near the surface of the earth; the stratosphere that houses the ozone layer; the mesosphere, a colder and lower density layer with about 0.1% of the atmosphere; and the thermosphere, the top layer, where the air is hot but very thin.
Explanation:
what is terminal velocity and how to see if the object reached terminal velocity on the graph
Help me ASAP (this is science ;-;)
Hearing aid: It makes some sounds louder so that a person with hearing loss can listen, communicate, and participate more fully in daily activities
Wheelchair: Gives mobility to people that can't or have a hard time walking.
Glasses: Corrects vision
Medicine: is used to cure, halt, or prevent disease
the train is travelling at 15 m/s. It accelerates at 3 m/s² for 20 seconds. How far does the train travel in this time?
The answer is 900m
Hope this helps
The right answer is "900 m"
Answer explanation:
Use the equation: acceleration (a) = change in velocity (v – u) / time taken (t)
Rearrange to solve for the final velocity (v):
v = u + at
Substitute in values and solve:
v = 15 m/s + 3 m/s2 × 20 s = 75 m/s
Rearrange the equation for uniform acceleration (v2 – u2 = 2as) to solve for distance (s):
s = (v2 – u2) / 2a
s = ((75 m/s)2 – (15 m/s)2) / (2 × 3 m/s2)
s = (5,625 m2/s2 – 225 m2/s2) / 6 m/s2
s = 5400 m2/s2 / 6 m/s2
s = 900 m
Hope it helps ✨✨
Pluto's orbit brings it inside the orbit of _____.
Neptune
Saturn
Venus
Uranus
Answer:
Pluto's orbit brings it inside the orbit of Neptune.
What is providing the centripetal force in the following examples?
A child riding on a merry go round
A yo-yo swung in a circle
What are the properties of the layers of the Earth atmospheres
science help mixtures giving brainly
Answer:
C, Use magnets.
Explanation:
Ella has a mass of 56 kg, and Tyrone has a mass of 68 kg. Ella is standing at the top of a skateboard ramp that is 1.5 meters tall. Which conclusion is best supported by the given information?
Answer:Tyrone is 12 more kg more than Ella.
Explanation:
Answer:
Tyrone is 12 more kg more than Ella.
Explanation:
