Penguins are preyed on by:
a. leopard seals and killer whales.
b. narwhales.
c. sperm whales.
d. jaegers.
e. frigate birds.
A
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Which type of organelle or structure is primarily involved in the synthesis of oils, phospholipids, and steroids?
A) ribosome B) lysosome C) smooth endoplasmic reticulum D) mitochondrion E) contractile vacuole
Which of the following animal groups is entirely aquatic?
A) Mollusca B) Crustacea C) Echinodermata D) Nematoda E) Platyhelminthes
Fungi are able to handle acidic environments much better than bacteria
Indicate whether this statement is TRUE or FALSE.
In terms of relatedness to a specific cellular process, which protein does not belong with the others?
A. Ribonuclease B. RNA polymerase holoenzyme C. DNA polymerase holoenzyme D. DNA ligase