It is the USS Dwight D. Eisenhower.
An aircraft carrier is basically a large barge or a large flat ship that can hold many different planes, and is long enough for a plane to take off and land on. These large aircraft carriers are usually located in the middle of the ocean, in a location where an airport or landing location on land is not accessible. USS Dwight D. Eisenhower is a nuclear powered aircraft carrier that is currently in service with the United States Navy.
Let me try: an example of a scientific question that can be investigated with an experiments is "at what temperature does iron melt"?Questions in physics ans chemistry are easily tested with experiments. an example of a scientific question that cannot be (I think) investigated with an experiments is "how does neuron activaton lead to us having the perception of free will"?Questions connected to human mind on a more general lever are not as easily tested with experiments: they need models rather than this.
Answer:
Blood vessels which help the body carry red blood cells throughout the bodies functions.
Explanation:
Capillaries, the smallest and most numerous of the blood vessels, form the connection between the vessels that carry blood away from the heart (arteries) and the vessels that return blood to the heart (veins). The primary function of capillaries is the exchange of materials between the blood and tissue cells.
Photosynthesis takes place in the roots of the plant
