The seeds of fleshy fruits are most likely to be spread by:
a. animals
b. water
c. wind
d. explosion
e. insects
a
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Answer the following statements true (T) or false (F)
1) Plasmids are created exclusively in research laboratories and do not occur naturally. 2) Bacteria that live in extreme environments, such as thermal vents on the ocean floor, have evolved genes that allow them to use the resources within that environment. 3) All the genes in a species' core genome are located on the bacterial chromosome, whereas the genes of the pangenome are carried on plasmids. 4) Mapping genes by conjugation can be performed by interrupted-mating experiments in which conjugation is physically disrupted at 1-minute intervals. 5) Scientists can identify the gene mutated in a bacterial auxotroph by transforming the cells with a genomic library in which fragments of the auxotroph's genome have been cloned into plasmids. 6) Multidrug resistance is not a major health concern because new antibiotics are easily and frequently identified.
In the liver, the enzyme glycogen phosphorylase catalyzes the breakdown of glucose
a. True b. False
In a flower, what is the ploidy of the
endosperm after fertilization?
a. haploid b. diploid c. triploid d. hexaploid e. octaploid
Prokaryotes are classified as belonging to two different domains. What are the domains?
A) Bacteria and Eukarya B) Bacteria and Archaea C) Archaea and Protista D) Bacteria and Protista