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In 1665, Robert Hooke, an English scientist, published his book Micrographia, in which he described that pieces of cork viewed under a microscope presented small cavities, similar to pores and filled with air.
Based on knowledge discovered later on, what do you think those cavities were composed of? What is the historical importance of this observation?
The Heliconius butterflies are a classic example of Müllerian mimicry. Which of the following defines a pair of species exhibiting Müllerian mimicry and which of the following defines an obligate mutualistic relationship
Lipid metabolites are often seen as key elements in cellular signaling. Is this unique? Please provide several examples of the function of lipids as key elements in signal arrays and list the biologic functions these signals affect?
New findings indicate that mutations outside of genes may cause disease. Such as in some cases of Hirshsprung disease and multiple endocrine neoplasia. Explain how such a mutation might alter the expression of a gene.
What do chloroplasts and mitochondria have in common
What is the difference between anabolism and catabolism?
Why is polyploidy fatal for humans? What is the differences between Karyokinesis and cytokinesis?
Relaxation is a characteristic of what part of the nervous system? Elevated ridges called fissures are separated by depressed areas called gyri. The skeletal muscles are multinucleated. These multiple nuclei are called. A majority of the muscles in t..
Transcranial magnetic stimulation (TMS) is a noninvasive technique used to stimulate regions of the human brain. A small coil is placed on the scalp, and a brief burst of current in the coil produces a rapidly changing magnetic field inside the br..
A cell of a particular species has 3, 6, or 12 pg of DNA at different stages. How much DNA does each of the following cells have? Please be certain to include units.
The average speed of blood in aorta is 0.4 m/s and the cross section of aorta is by 3.5 % lower than the cross section of polmunary artery. calculate the average speed of blood in polmunary artery. result express in m/s
When someone donates blood, the blood is mixed with a form of chemical called an anticoagulant. What do you think an anticoagulant is and how is it helpful to the storage of blood for future use?
How can a virus adapt to something such as a structural adaption or physiological adaption? I don't understand how a virus can do that? can someone please tell me what they mean or how a virus can "adapt?"
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