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:
b. The energy is lost as heat.
1. MUSCLE TISSUE : allows the heart to contract
2. CONNECTIVE TISSUE : insulates the body
3. EPITHELIAL TISSUE : forms the outer, most protective layer of the body
4. NERVOUS TISSUE : allows the brain to respond to stimuli. Others include sensory input, integration, control of muscles and gland, homeostasis, & mental activity.
(I answered another question just like this two minutes ago, not sure if it was the same person :)
Answer:
It allows rapid conduction of water from one vessel element to the next.
Explanation:
Vessels are one of the two types of conducting cells of xylem. Vessels are made of vessel elements. Vessel elements are the individual cells with perforation plates. The perforation plates have large holes (perforations). Perforation plates of adjacent vessel elements allow easier conduction of water from one vessel element to the next.
The perforated end walls of vessel elements allow these conducting cells to conduct water more readily than tracheids. Stacking of vessel elements with perforated end walls make the vessel like a water pipe through which water is being readily conducted.
