Why is the evolution of secondary growth important for plants?
What will be an ideal response?
Secondary growth enables plants to become thicker, and a thicker plant can support itself better as it grows taller and taller.
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The North American pronghorn antelope can run almost as fast as a cheetah, but unlike the cheetah, can also sustain speeds of 30-40 mph for miles. The pronghorn is about the size of a large, domestic goat. You would predict the antelope to have a _____ than the goat.
A. smaller trachea B. higher concentration of hemoglobin C. smaller lung volume D. lower concentration of myoglobin E. lower concentration of bicarbonate Clarify Question What is the key concept addressed by the question? What type of thinking is required? Gather Content What do you already know about oxygen use? What other information is related to the question? Choose Answer Given what you now know, what information is most likely to produce the correct answer? Reflect on Process Did your problem-solving process lead you to the correct answer? If not, where did the process break down or lead you astray? How can you revise your approach to produce a more desirable result?
The primary function of external gills in aquatic animals is to
A. relay nerve impulses. B. exchange gases with the water. C. secrete reproductive hormones. D. defend against invading microorganisms. E. transport blood.
Enzymes decrease the overall free energy change in a chemical reaction.
Answer the following statement true (T) or false (F)
Which type of white blood cell is particularly attracted to sites of parasitic worm infections?
A. Monocytes B. Neutrophils C. Basophils D. Lymphocytes E. Eosinophils