Answer:
D.
Explanation:
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Emperor penguins need lungs to breathe. In penguin lungs, air never stops. ... Once the air goes farther into the trachea it splits into two different directions into both lungs. To get the oxygen into the blood cells, it must come "within small distance of the penguin blood cells".
Answer:
If you double the speed of an object, the kinetic energy increases by four times. The word "kinetic" comes from the Greek word "kinesis" which means motion. Kinetic energy can be passed from one object to another in the form of a collision.
Explanation:
The kinetic energy is proportional to the square of the speed, so doubling the speed increases the kinetic energy by a factor of 4.
Answer:
- The six essential nutrients are vitamins, minerals, protein, fats, water, and carbohydrates.
-The digestive system converts the foods we eat into their simplest forms, like glucose, amino acids or fatty acids.
- The function of the excretory system to remove wastes from the body.
-The organs of the urinary system include the kidneys, renal pelvis, ureters, bladder and urethra.
-The excretory system works with the endocrine system to help maintain homeostasis. Chemical messengers called hormones signal the kidneys to filter more or less water or salt, depending on the levels of water and salt in the body.
Explanation:
