Which of the following does not correctly pair an animal with its food source or strategy?
a. hyenas?dead animals
b. baleen whales?suspended particles
c. earthworms?plant and animal material
d. locusts?other insects
e. giraffes?leaves
D
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The purpose of sodium dodecyl sulfate (SDS) in a two-dimensional gel electrophoresis experiment is that it allows proteins to separated by
A. by charge only B. primarily by molecular mass C. by a combination of both size and mass D. net charge
The anterior pituitary secretes more ACTH, leading to more glucocorticoids in plasma, which causes the anterior
pituitary to then secrete less ACTH. This is an example of ____ regulation.
a. amplification only b. positive feedback only c. negative feedback d. cascading feedback e. both amplification and positive feedback
The synaptonemal complex becomes fully developed during which stage of prophase I?
A) leptotene B) zygotene C) pachytene D) diplotene E) diakinesis
Which of the following organelles are enclosed by a double membrane?
a. All organelles are enclosed by a double membrane. b. vacuoles and the endoplasmic reticulum c. the nucleus and the Golgi apparatus d. mitochondria and chloroplasts e. ribosomes and lysosomes