The synthesis of thyroid hormone requires ____
a. sodium
b. calcium
c. iodide
d. phosphate
e. potassium
ANSWER: c
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Assuming that indepentent assortment occurs during meiosis, what type(s) of gametes will form in individuals with the following gentoypes?
a. AABB b. AaBB c. Aabb d. AaBb
An E horizon is more likely to develop in grassland soils than in forest soils
Indicate whether the statement is true or false
The smallest cell structure that would most likely be visible with a standard (not super-resolution) research-grade light microscope is a _____
A) mitochondrion B) microtubule C) ribosome D) microfilament
Which of the following is a shared derived character for monotreme, marsupial, and eutherian (placental) mammals?
a. parental care b. internal fertilization c. amnion d. production of milk to nourish young e. complete embryonic development inside a uterus