An organelle that pinches off portions of its
membrane to form a transport vesicle is the
a. mitochondrion.
b. chloroplast.
c. nucleolus.
d. Golgi body.
e. peroxisome
D
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Which of the following statements is true regarding chemical weathering?
A. It plays a major role in the short-term carbon cycle. B. It releases CO2 into the atmosphere. C. It relies on the acid SiO2. D. It contributes to the accumulation of CaCO3 in oceans. E. It relies on bacteria to break down rocks.
The umbilical arteries carry
A. oxygen-rich blood to the developing fetus. B. oxygen-rich blood to the mother. C. oxygen-poor blood to the placenta. D. oxygen-rich blood to the placenta. E. oxygen-poor blood to the developing fetus.
The corpus luteum is located in the
A) penis. B) ovary. C) testis. D) uterus. E) vagina.
Which choice regarding DNA replication is true?
A) Mistakes in DNA replication are a mechanism of evolutionary change. B) A change in amino acid sequence is inherent in mistakes in DNA replication. C) Mistakes in DNA replication never occur. D) Errors in DNA replication are detrimental to the survival of a species. E) Mistakes in DNA replication are a direct response to the organism's environmental cues.