Which of the following correctly compares the structures of plant and animal cells?
What will be an ideal response?
Both plant and animal cells have a nucleus, where DNA replication takes place.
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Streptomycetes are gram-positive bacteria that are capable of producing antibiotic-like compounds, which were the basis for widely used antibiotics such as erythromycin
A. true B. false
An autosome is
a. a chromosome that is part of a pair that is the same in both males and females. b. a structure for transport of genetic material to the cytoplasm. c. a chromosome with a group of genes involved in autoimmune disorders. d. a region of the DNA that is self-replicating. e. a cellular body involved in autoimmune disorders.
Which organ is very sensitive to the increases in blood nitrogen gas during deep water dives?
a. heart b. brain c. lungs d. kidney e. muscles
You observe several populations of a species of wildflower in your county. Even though the climate is nearly identical in all three places, each population has distinct traits. What's the most likely cause of change when habitat is similar?
A) a chance event in each population as the original population spread B) founder effect in each population as the original population spread C) sexual selection acting on each population D) independent mutations arising in each population