Which of the following identifies two technological advancements of space exploration history during the period between 1960 and 1969? O Satellites were launched by the United States, and solar energy was an invented. O The first human was sent into space, and water was discovered on Mars. o Numerous spacecraft launches resulted in technological advancements, and humans landed on the moon. O Robotic spacecrafts were sent to gather information about Halley's comet, and the twin Voyagers gathered data from distant planets.

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so, when you eat, your teeth chew and grind food into smaller pieces. this is mechanical digestion. then reactions aided by digestive enzymes break down large food molecules into smaller molecules. this is chemical digestion. the two processes change the food into simpler substances that can be used by the body for raw materials and energy.

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tobey

if the type of the food available changes, then the frequency of beak types will change, because birds with beaks more suited to the available food will be more successful over time.

it is called the mitotic spindle