Bias.
A major cigarette company wouldn't want their sales to go down so they'd publish a <em>biased</em> study claiming there's no link between cigarettes and cancer.
The energy transformation so far, chemical energy transforms or changes into electrical energy. ... Therefore, chemical energy transformed into electrical energy in the wire, then transformed into electromagnetic energy in the nail.
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.
