A) Mass and Weight
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During the first one to two months of life, infants are incapable of deep sleep (they do not have trouble falling asleep but they do not generally stay asleep for very long stretches). This happens because infants can’t make the difference between night and day - they do not yet have a circadian rhythm. Around six weeks, the hormone melatonin is produced (pineal gland) and it helps establish a normal sleep-wake cycle.
Answer:
A. invertebrate animals have complex organ systems not found in true microbes.
Explanation:
Mites and worms are considered as invertebrate parasites as they have complex organ systems like other invertebrates which are simpler in microbes. Invertebrates have complex organ system that is comprised of complex network of veins capillaries and nerves, while in microbes simpler form of such systems are present.
Axillary buds are found at the insertion point of leaves and lateral branches in the nodes and give rise to lateral branches and flowers. Internodes are the stem regions between nodes. They lack lateral organs. It can be said that the stem is made up of nodes, internodes and axillary buds tidily arranged.