The answer is D. Scientists may find new information that causes them to modify their ideas.
Plate tectonics suggests that Earth's entire crust is composed of a number of large plates that are in constant motion relative to each other. Some plates are sliding under other plates, some are sliding past each other, others are pulling apart, and still others are colliding.
The question is about a test cross. Definition of a test cross: Generally a cross involving a homozygous recessive individual. When a single trait is being studies, a test cross is a cross between an individual with the dominant phenotype but of unknown genotype (homozygous or heterozygous) with a homozygous recessive individual. If the unknown is heterozygous, then approximately 50% of the offspring should display the recessive phenotype. If the individual is homozygous all the progeny will have the dominant phenotype. James' suggestion to use show the result of the two possible crosses with a Punnet square is a great suggestion.
Answer:
second messenger cascade
Explanation:
Second messenger cascade is activated by the NE beta receptor which then activates the G protein. G protein in turn activates the enzyme responsible for converting ATP to cAMP i.e adenylyl cyclase. When the level of cAMP reaches a certain level, the enzyme protein kinase is released. The enzyme phospholipase is released as the G proteins get active and breaks down the phospholipid membrane into two secondary messenger molecule.
Answer:
Scientific ideas change over time as our evidence improves the more expirements they do and data makes them change
Explanation:
