What is a ribozyme made of?
What will be an ideal response?
RNA
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Members of the ____ flatworm lineage are vertebrate endoparasites;some, called blood flukes, cause an often deadly
disease in humans called schistosomiasis.
a. Trematoda b. Turbellaria c. Polychaeta d. Cestoda e. Hirudinea
After which Period did the last mass extinction
occur?
a. Permian b. Triassic c. Jurassic d. Ordovician e. Cretaceous
Proteins that speed up reactions are known as
1.salts 2.buffers 3.monomers 4.polymers 5.enzymes
Homologous structures, such as arms, wings, and fins, are constructed from the same basic bones and are adapted to locomotion in different environments. Which idea do such structures support?
a) inheritance of acquired traits b) descent with modification c) tendency toward perfection d) artificial selection