Dead earthworm.
animals like fish have a two chambered heart
The word believed is a past tense verb. It is the past of believe.
The past participle of cheer is cheered.
It was old! How long in the past?
It is in the past tense.
That would be "dissected". The student dissected a frog in his biology practical.
It is dissected.
Dissection is a noun. The verb form is to dissect. The adjectival form is dissected.
Segment is a regular verb so the past is segmented.
The past perfect tense is had observed.
Observed is the past tense of observe.
observed
no
Observant is the adjective form of observe.
Observed is the past tense and past participle of the verb observe. Past participles can be used as adjectives. Example: observed behavior.
This is likely one of these : DECIDED - made a decision DECEASED - dead DISSECTED - cut into sections or parts
To be able to study and observe it later and learn more about the past and the creatures in it.