Which of the following represents an early
stage in primary succession?
a. pine trees
b. moss and lichens on bare rock
c. weedy annual plants in an open field
d. climax species in succession
e. alder, cottonwood, and willow thickets
B
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Because a direct count of all individuals within a population is often impossible, population density is usually estimated by one or more methods of ________
Fill in the blank(s) with correct word
Which organelle is responsible for removal of other damaged organelles and cellular debris?
A) ribosomes B) smooth endoplasmic reticulum C) lysosomes D) centrioles E) mitochondria
Sister chromatids separate from each other during _____
A) meiosis I only B) meiosis II only C) mitosis and meiosis I D) mitosis and meiosis II
The selective chemical(s) in the Bile Esculin Agar is (are)
A. Esculetin B. Bile salts only C. Bile salts & esculetin D. Ferric citrate E. Esculin