Answer:
The pumping of the heart involves the alternate contraction and relaxation of the chambers of the heart. The upper chambers of the heart are called at atria and the lower chambers of the heart are called ventricles.
Answer:
The correct answer is "sea star living deep in the ocean".
Explanation:
A sea star living deep in the ocean isaAn example of an ectothermic organism that is not able to control its body temperature. However, sea stars are able to sense temperature and have few behavioral options to regulate it. Usually, a sea star lives in waters that are between 72 and 78 degrees Fahrenheit. If the water reaches 88 to 95 degrees Fahrenheit, the sea star responds by shucking their limbs.
Answer: it cements sediments
Explanation:
I looked it up hope this helps.
The answer is D. they are called FOSSIL FUELS, meaning they do not come from the tides, the planets core, or the Sun
In order to calculate the work done, you need to know how far she lifted it. We don't know the distance, so it's not possible to calculate the work.
All we have right now is a laundry basket that weighs 75N being lifted with 100N of force. Reading carefully, we know that the vertical forces on the laundry basket are unbalanced, and the NET force on it is 25N upward.
We can go further if we assume that all of this is happening on Earth. Then, since the basket's weight is 75N, its mass is (W/g) = 7.653 kg. From Newton #2, we know that F=mA, which we can re-arrange to state that A = F/m. So in the case of the unfortunate laundry basket,
A = F/m = (25N / 7.653 kg) = <em>3.27 m/s²</em> .
The laundry basket is accelerating to the sky as we speak, at the rate of 3.27 meters per second². As it cleared the fence a few moments ago, Mrs. O'Leary's cows next door spotted it, panicked, ran into the barn and clear through the back wall into the pasture. Now, a full minute after lift-off, the laundry basket has achieved a vertical velocity 196 m/s, and is 5.88 kilometers downrange. After a simple roll maneuver, it may be in orbit soon, if the 100N force on it continues.
