During the day, the leaves of bean plants are ____, and at night they are ____
a. horizontal; wilted
b. horizontal; vertical
c. horizontal; horizontal
d. vertical; vertical
e. vertical; horizontal
b
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Answer the following statement(s) true (T) or false (F)
1. RNA was probably the first molecule used to encode genetic information; the use of DNA came later. This is due to RNA's inherent stability and its ability to store information more accurately than DNA. 2. Viruses are self-replicating but the replication is much faster in a host cell. 3. Retroviruses are unique because they are a combination of RNA and DNA. 4. Nucleotide analogs are a class of drugs that are highly effective against many types of viruses. They work by halting the replication of viral genes. They are equally effective at stopping the spread of prion diseases. 5. Tetracycline is effective against viruses because it disrupts the action of the viral ribosomes.
Rising air temperatures at the leaf surface can increase evaporation, although wilting can also cool a
leaf somewhat.
Indicate whether the statement is true or false.Zygote intrafallopian transfer (ZIFT) requires in vitro fertilization to be performed before embryo transfer into the
oviduct. a. True b. False
In general, what hormone is produced in greater quantities in males that allows them to have a greater muscle mass than females?
A) adrenaline B) testosterone C) estrogen D) growth hormone