The answer to your question would be the "DNA Double Helix".
The equal amounts of sunlight and water each day.
<span>Cloudy
and muddy water will interfere with the penetration of light to particular depth
in water where coral are found. The algae in the symbiotic relationship with
the sponges will be unable to photosynthesize. This way, the sponges will lose the
algae and become ‘bleached’. </span>
Answer:
At about 38 weeks after conception, the fetal brain signals the release of hormones, specifically <u>oxytocin,</u> which prepares the fetus for delivery and begins labor.
Explanation:
Oxytocin is a hormone released by posterior pituitary gland because it is responsible for the uterine contractions during labour.
Fetal hypothalamus secretes corticotropin releasing hormone near term which stimulates fetal Anterior pituitary gland to secrete adrenocorticotropin hormone (ACTH) which stimulates adrenal cortex to produce cortisol which stimulates the secretion of estrogen from placenta, inhibition of P synthesis causing increased uterine contractions by cauisn increased oxytocin released from posterior pituitary gland.