Heart muscle works hard and therefore consumes much ATP. Which organelles would you expect to be especially numerous in the heart muscle cells?
A) nuclei
B) mitochondria
C) Golgi complexes
D) lysosomes
B
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Gram stain smears of urethral exudates for the detection of Neisseria gonorrhoeae are highly specific
Indicate whether the statement is true or false.
Microfilaments are made of ________
A) actin B) tubulin C) intermediate proteins D) phospholipids
Flagellated sperm and a sporophyte that is dependent on the gametophyte are characteristics of
A. gymnosperm. B. lycophytes. C. moss. D. ferns. E. angiosperm.
If you were to study all of the insect-eating birds in a forest, you would see that many birds eat insects, yet you may
not see any evidence of competition. What is the most probable explanation?
a. The birds have coevolved. b. The birds are exhibiting resource partitioning. c. The birds are exhibiting intraspecific competition only. d. There is no keystone species in this community. e. There is not enough species richness to see evidence of competition.