Researchers have been transferring to utilizing molecular data like ribosomal RNA sequences as opposed to morphological data to study the evolutionary history of animals. Why?

a) Some phyla Vary too widely in morphological characteristics

b) Molecular data can be used to understand the major genetic changes to extrapolate an estimate on the timing

c) Molecular data is investigated and studied in the lab. This is is opposed to how morphological data is gathered

d) Morphological changes usually do not result from molecular changes.

 

B

Step-by-step explanation

Today, practically all transformative connections are surmised from atomic succession information. This is on the grounds that: 

*DNA is the acquired material 

*We can now effectively, rapidly, modestly and dependably succession hereditary material 

*Successions are exceptionally explicit and are frequently data rich 

In uncommon cases, where it is beyond the realm of imagination to expect to get hereditary material (for example on account of certain old fossil examples), morphological estimations can be utilized to construe evolutionary relarionahip. Notwithstanding, this methodology is less solid than utilizing molecular data since we realize that occasionally a similar morphological attribute can emerge from various free developmental genealogies (for example events of the attribute are comparable to).