From the list below, which choice represents a correct difference between sperm production and egg production?
A) Four mature sperm are produced from one cell; one large egg is produced from one cell.
B) Sperm are produced by somatic (body) cells; eggs are produced by gametes.
C) Sperm are produced by mitosis; eggs are produced by meiosis.
D) Sperm are produced by meiosis; eggs are produced by mitosis.
E) Eight mature sperm are produced from one cell; two eggs are produced from one cell.
Answer: A
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Answer the following statements true (T) or false (F)
1. Molecular homologies indicate that living species evolved from a common ancestor or interrelated group of common ancestors. 2. Selective breeding results from programs designed to modify traits in domesticated species. 3. According to Thomas Malthus, food supplies tend to increase arithmetically while populations tend to increase exponentially, which means that populations will outgrow their food supply. 4. Neutral variation is supported by the observation that most changes in codons occur in the third position within the codon, which often has no effect on the sequence of amino acids in the protein.
You are an EMT on duty for the marathon. It is an extremely hot day. You say to your partner, "This weather is likely to _____________ the risk of hyponatremia, because ______________ will cause the athletes to lose ______________."
A. increase, sweating, sodium B. decrease, urination, calcium C. decrease, shivering, potassium D. increase, panting, oxygen Clarify Question · What is the key concept addressed by the question? · What type of thinking is required? Gather Content/Choose Answer · What do you already know about hyponatremia? What other information is related to the question? Reflect on Process · Did your problem-solving process lead you to the correct answer? If not, where did the process break down or lead you astray? How can you revise your approach to produce a more desirable result?
Which of the following lists only essential trace elements?
a. zinc, iron, manganese, fluoride, molybdenum b. boron, copper, iodine, selenium, manganese c. copper, manganese, selenium, chromium, molybdenum d. iron, zinc, magnesium, iodine, selenium
Benzoic acid is largely a(n) (antifungal/antiprotozoal/pickling) agent and does not affect the growth of many bacteria
What will be an ideal response?