Which of the following accurately describes the way in which a muscle moves? a. when actin filaments are pulled toward the center of the sarcomere, the fiber shortens. b. interaction and attachment between myosin and actin cause a muscle fiber to relax. c. no atp is needed is the contraction of a muscle. d. during contraction, cross- bridges pull the myosin to the center of the sarcomere.

Where would you expect to see seedless plants, such as ferns and mosses? a. in a botanical museum, because they are all extinct b. low and close to the ground in a moist environment c. climbing high while circling the branches of another plant d. deeply rooted in a forest with a trunk that reaches 20 meters or more

What is the name of the two satelites on mars

Zoo geographic regions are characterized by the presence of specific groups of animals these regions are determined by the taxonomic or phylogenetic relationships of animals. the map shows the zoogeographic regions proposed by the naturalist alfred russel wallace in 1876. the similarities of organisms in which two areas numbered above provide the best evidence for common ancestry between the organisms in both locations ?