Which feature is not an adaptation for fight?
a. Wings are covered in feathers
b. Denser bone mass
c. Forelimbs evolved into wings
d. Standing upright
e. Enlarged sternum for flight muscle attachment
b
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Metagenomics has helped us to understand that the composition of the microbiome may be connected to many aspects of human health.
Answer the following statement true (T) or false (F)
Describe the evolution of the vertebrate heart.
What will be an ideal response?
Allosteric regulation generally results from ____.
A. excess substrates B. binding of regulatory molecules at sites other than the active sites C. a change in the temperature of the system D. a lack of coenzymes E. changes in pH
Disadvantages of continuous cell cultures include
A) they only grow for a limited number of generations. B) the expense of preparation. C) they may be significantly different genetically from the original source animal. D) viruses do not reliably infect them. E) they are both expensive and have a limited number of division.