Photosynthesis & Respiration.
Just had this question on a test, you forgot the multiple choices. :-)
True if one species goes extint then we could lose food from them
Answer:
homzygous homzygous heterozygous
Explanation:
A) To ensure that natural resources are available for future generations
As hinted in the question, the cross bridge cycle is a
series of molecular events that occur after excitation of the sarcolemma. A
cross bridge is formed when a myosin head bound to actin. The cross bridge
cycle depends on the presence of calcium ions