Each of the term is identified whether they arise from the ectoderm, mesoderm or the endoderm.
The thyroid arises from the endoderm.
The thymus arises from the ectoderm.
The anterior pituitary arises from the ectoderm.
Answer:
In Manchester England in the 1840's there were factories that used coal which coated the trees. This allowed the darker moths to hide better against the trees than the lighter moths which were eaten by birds.
Explanation:
Answer:
C. Scavenging of dead animals and gathering of plants (just as Homo <em>habilis</em> had done), and perhaps the hunting of smaller animals
Explanation:
Homo <em>erectus</em> (erect man): Homo erectus is believed to be appeared about 1.5 million years ago. It was in the middle Pleistocene age when they evolved from homo habilis. Homo erectus probably ate meat, was around 1.5-1.8 meters tall and males were probably larger than females. As the name suggests they has erect posture. His skull was flatter than that of modern man and he had protruding jaws. Other features includes projecting brow ridges, small canines and large molar teeth. Their cranial capacity was 900 cc. Cranium was dome shaped to accommodate the large brain. Homo erectus was omnivorous and he made various tools using stones and bones. He made use of fire for hunting, defense and cooking. Homo erectus inculdes three fossils: Java Ape-man, Peking man and Heidelberg man.
1. The position affects the temperature of the planet because of how far away it is from it from the sun
2. Mercury and Venus are very close to the sun so they are very hot and can't support any life.Earth is the most perfect place to support life because it has water and a proper atmosphere. Mars is very rocky and is a unique red colour. Jupiter is a gas planet and has a red dot. Saturn has rings made of ice and dust just like Uranus and Neptune is so cold and is definitely too cold for humans to live.
3.Asteroides and coments are a mass of rock and dust and ice and coments have a tail of light and may be also know as shooting stars
