Answer: A constellation
Explanation:
A group of stars is a constellation. The Hubble Deep Field is an image of a small region in the constellation Ursa Major, constructed from a series of observations by the Hubble Space Telescope.
Spring tide is the high tide and neap tide is the low tide
Answer:
They have different forms and different functions.
Explanation:
A flatworm has a thin, flattened body. Roundworms are more cylindrical in shape and tapered to a fine point at one end. Flatworms generally live in bodies of water, while roundworm species can live either on water or in soil.
The appropriate response is biochemistry. Eduard Buchner showed that aging can be achieved utilizing dead chemicals as opposed to living yeast. He built up that biochemical responses are conceivable outside living cells. He was awarded a Nobel Prize in the year 1907 for his discovery on fermentation.
A nerve net consists of interconnected neurons lacking a brain or any form of cephalization. Unlike central nervous systems, where neurons are typically grouped together, neurons found in nerve nets are found spread apart. This nervous system allows cnidarians to respond to physical contact.