Titanium is a strong, light metal. It is as strong as steel and twice as strong as aluminum but 45% lighter than steel and highly resistant to corrosion. It is used in making alloys and is mostly added to steel because it increases the strength and resistance to corrosion of steel.
Titanium - steel alloys are particularly useful in spacecraft and aircraft applications which account for about 65% of all Titanium sold. These alloys find a host of other applications such as in manufacture of jewelry, bicycles, golf clubs, various sports equipment and also in the medical field as artificial hips, knees and specialized dental implants.
The correct answers are:
Trematodes are acoelomates that have effective defenses against attack by their hosts' immune system.
Trematodes are flatworms, internal parasites known as flukes. Their life cycle is complex: they sexually reproduce in vertebrates and asexual reproduce in mollusks (mostly snail). The body of flukes is covered with tough tegument that defends them form digestive enzymes of host’s intestine.
Cnidarians are diploblasts that produce complex, capsule-like organelles.
Cnidaria are water organisms with simple structure: two layers of epithelium and a jelly substance between them. The cells of Cnidaria-cnidocytes contain capsule with venom substance in it with protective role.
Answer:
they are made to work together and there ae different types
Explanation:
there just made like that
Supongo que solo trata de probar cuál es cuál con una prueba que inventas. eso es muy confuso
