True-False. Mark \"A\" if the statement is true, but mark \"B\" if the statement

Question

True-False. Mark "A" if the statement is true, but mark "B" if the statement is false. Be careful for compound statements where one or more clauses/sentences are true, but where one false portion makes the whole sentences statement false. After a cell is infected by a virus, the viral genes may quickly turn the host cell into a virus- producing factory; finally, the host cell lyses. The macro evolutionary pattern of convergent evolution occurs when distantly related species arise with a similar adaptation(s) in similar environments (ex: penguin flipper, dolphin front fin. and shark front fin in ocean). Distantly related groups of reptiles (tetrapods) have a few examples of legless lizards in their groups. True or False? This observation suggests that the legless condition has arisen independently several times. In amphibians it is sometimes common for individuals of two similar, but different, species to mate. The result is often that the developing embryos die in the egg. True or False? This is an example of a postzygotic mechanism in reproductive isolation. In some hot springs we find the thermoacidophile. Sulfolobus acidocaldarius; it lacks peptidoglyean, but still possesses a cell wall; its enzymes function at an acidic pH. True or False? This species is highly likely to be in the domain Bacteria. Sometimes bacteria will form a conjugation tube or sex pilus with a completely different type of cell (i.e. streptococcus and bacillus) and transfer a plasmid for antibiotic resistances. True or False? This type of genetic transmission is an example of horizontal gene transfer. Both male and female bryophytes produce gametangia. Angiosperm double fertilization is so-called because it features the formation of one embryo involving one sperm cell and an endosperm involving a second sperm cell. Fungi and arthropods both have protective layers made of chitin. Chordate pharyngeal slits appear to have functioned first as suspension filtering devices as in the Cephalochordata and Urochordata. Tiktaalik was a special find because this fishapod had a one bone, two bone arrangement in its fins that resembles our current arms and legs. Phylogenetic trees are best described as hypothetical portrayals of evolutionary relationships. Darwin suspected that modem life had many ancestors, because so many different forms of life originated on very early earth. The Nematode are classified in the clade Ecdysozoa because they molt their cuticle layer. Many of the adaptations for flight that are common in the birds are associated with reduced weight, so flight will be less energetically demanding.

Explanation / Answer

86) True

Viruses depend on the host cells which they to produce. They exists as a capsid or a protein coat enclosed within a membrane. When it comes into contact with the host cells, the virus inserts is generic materials into its host. By doing this the host's function is taken away by the virus. More vital protein and genetic materials are produced instead of its usual products by the infected cell.

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