The ________ is the distance between the center of a lens and the point at which it focuses parallel beams of light.

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


focal length

Biology & Microbiology

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DNA polymerase assembles new strands

a. in a 5' to 3' direction only. b. in a 5' to 3' direction building one strand and a 3' to 5' direction building the other stand. c. in a 5' to 3' direction building the first half of a strand and a 3' to 5' direction building the second half of a strand. d. in a 3' to 5' direction building the first half of a strand and a 5' to 3' direction building the second half of a strand. e. in a 3' to 5' direction on the “old” 3' to 5' strand.

Biology & Microbiology

Which of the following is responsible for the actual invasion of the lining of the uterus?

a. trophoblast b. amnion c. inner cell mass d. blastocyst e. placenta

Biology & Microbiology

As natural selection increases the frequency of one morphological form over another in the population, what changes at the genotypic level?

What will be an ideal response?

Biology & Microbiology

Which cell organelle functions to transport materials from the endoplasmic reticulum throughout the cell?

a) ribosome b) Golgi apparatus c) lysosome d) vacuole

Biology & Microbiology