When brown algae divide asexually, each new cell retains half of the original shell
__________________ Indicate whether the statement is true or false.
F, diatoms
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Myoglobin content is high in
a. fast anaerobic fibers. b. fast aerobic and fast anaerobic muscle fibers. c. slow muscle fibers and fast aerobic muscle fibers. d. slow muscle fibers. e. fast aerobic fibers.
Nearsightedness is caused by a(n) _____
a. eye structure that focuses an image in front of the retina b. eye structure that focuses an image behind the retina c. eyeball that is too short d. recessive trait on the Y chromosome e. recessive trait on the X chromosome
You encounter an insect with small eyes, long sensory antennae, and a long mouthpart shaped like a sword. What can you conclude about the environment in which it lives?
A) The environment is dark and has many plants. B) The environment is wet and has many other insects. C) The environment is hot and has many primates. D) The environment is cool and has many reptiles.
Channels form pores through which molecules of appropriate size and charge can cross a membrane, whereas carrier proteins
a. actively transport molecules. b. selectively bind the molecule to be transported, change configuration, and release it on the other side. c. require ATP. d. transport a molecule against its concentration gradient.