Regulating basic biological needs is a function of the Hypothalamus. Hypothalamus is a part of the brain that has a vital role in controlling many bodily functions including the release of hormones from the pituitary gland. Cerebrum is the most superior and anterior part of the brain. It consists of two cerebral hemispheres separated by the flax cerebri of the dura mater, It is involved in reason, planning, memory, and sensory integration. Thalamus is a small structure within the brain located above the brain stem between the cerebral cortex and the midbrain and has extensive nerve connections to both. It relays motor and sensory signals to the cerebral cortex.
The duplication of homeotic ( H o x ) genes has been significant in the evolution of animals because it <u>permitted </u><u>the </u><u>evolution </u><u>of novel forms</u>
<h3>What is the Hox genes and evolution?</h3>
Hox proteins are a family of transcription factors that have undergone extensive conservation. They were first identified in Drosophila for their crucial functions in regulating segmental identity along the antero-posterior (AP) axis.
The regionalization of the AP axis and changes in the expression patterns of these genes have been strongly correlated during the past 30 years across a wide range of evolutionarily distinct species, indicating that Hox genes have been essential in the evolution of new body plans within Bilateria.
Despite this extensive functional conservation and the significance of these genes for AP patterning, many important concerns about Hox biology remain.
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If ice did not float, the world would be a hot mess. Ice reflects lots of sunlight, so if it was at the bottom, our world would be significantly hotter. Additionally, plants grow at the bottom, so if they were trapped in ice, the water would run out of oxygen and everything would die. Bottom feeders would not exist, because they would be frozen. Also, the ice would just like on, because the water above prevents it from melting entirely, leading to all of our bodies of water eventually freezing.
Answer:
I think it's true but I may be wrong
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