Which of the following steps of excitation-contraction coupling are different between skeletal muscle and contractile myocardium? stimulus to open dhp receptors. stimulus to open ryr. formation of cross-bridges between actin and myosin. removal of calcium from cytoplasm/sarcoplasm

Which of these resources is used worldwide to make construction products, pottery, and porcelain

The human genome project is devoted to mapping the general dna sequence of our species. this could lead to the development of new medicines, as well as the possibility of using gene therapy to treat certain diseases. however, there are some ethical issues surrounding the mapping of individual genomes. one concern is a) that your genes may change over time, making the project useless. b) that insurance companies could discriminate based on genetic make-up. c) that since this has never been done before, we should probably not do it now. d) that sequencing our individual genomes is so expensive, it is a counter-productive strategy.

Will mark brainliest. (20 points) many have pigments structures known as eyespots that detect direction of light. a. b. archaebacteria c. protists d. none of the above