Water is a ______ molecule

Fill in the blank(s) with the appropriate word(s).


Answer: polar

Biology & Microbiology

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Which of the following are present in high densities in both smooth and skeletal muscle cells?

I) cilia II) mitochondria III) nuclei IV) endoplasmic reticulum A) only I and II B) only II and IV C) only III and IV D) only I, II, and III E) I, II, III, and IV

Biology & Microbiology

In comparing the number of differences in amino acids for cytochrome c: between a moth and a rattlesnake there are 31 different amino acids in the sequence, between a moth and a dog there are only 25, and there are 6 differences between a dog and a horse. Therefore,

Select one: a. this is sufficient evidence to prove the moth is related more to the dog than to the horse. b. dogs had to evolve earlier than horses, since moths are more primitive. c. evolution used to be considered a unifying theory until biochemical data showed only differences. d. added to anatomical similarities and fossil records, this provides additional evidence for constructing a phylogeny or family tree. e. biochemical information is not relevant to the evolution of organisms.

Biology & Microbiology

The presence of a buffer in our blood helps maintain homeostasis.

Answer the following statement true (T) or false (F)

Biology & Microbiology

Describe how the structure of the bacterial cytoplasmic membrane relates to its function of selective permeability.

What will be an ideal response?

Biology & Microbiology