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Why are more fossils found in the paleozoic era than in the precambrian era?
During the Precambrian times, life was mostly limited to single celled organisms. Life that was not single cellular didn't have any hard body part (like teeth, bones, shells, etc.) and so they weren't preserved.
The repetition of body parts along the length of an animal's body is termed?
The repetition of body parts along the length of an animal's body is termed segmentation. This characteristic is found in organisms like annelids, arthropods, and chordates during certain stages of development. Segmentation allows for specialization of body parts and greater flexibility in movement.
What important adaptation help protect organisms of the early Cambrian period?
hard body parts
What anatomy mean?
The study of the human body in respect to all its parts and their relationships to each other. It can aswell be defined as the scientific study of the structural parts of the human body or living being.
Why is transport of materials essential in living organisms?
Essential materials, such as nutrients and oxygen have to be transported to different parts of the body in living organisms. Without this mechanism, life will not be sustained.
What is meant by term Cambrian explosion?
The Cambrian explosion is an apparently sudden increase in fossils marking the separation between Precambrian rocks and Cambrian rocks. At one time this was believed to mark the beginning of multicellular life, but in fact it only marks the evolution of hard body parts (most of which were made of calcium carbonate). It turns out that there were as many multicellular organisms in the late Precambrian as there were during the Cambrian explosion at the beginning of the Cambrian, but the lack of hard body parts in those organisms made the formation of easy to identify fossils of those organisms much rarer.
Why are more fossils found in the paleozoic era than in the precambrian era?
During the Precambrian times, life was mostly limited to single celled organisms. Life that was not single cellular didn't have any hard body part (like teeth, bones, shells, etc.) and so they weren't preserved.
What term describes body parts of different organisms that are in similar form?
Which term describes body parts of different organisms that are similar in form?
Are organs organisms?
No , because organs are only body parts of organisms.
When did organisms begin to have hard parts?
There have been organisms from the beginning of time that have had hard parts on their body. This is described in creationism.
The fundamental likeness of body structure in all vertebrates indicates that these organisms probably originate from?
The body structure in all vertebrates indicated that these organisms originated from Precambrian times. This has to due with having a back bone.
The repetition of body parts along the length of an animal's body is termed?
The repetition of body parts along the length of an animal's body is termed segmentation. This characteristic is found in organisms like annelids, arthropods, and chordates during certain stages of development. Segmentation allows for specialization of body parts and greater flexibility in movement.
What term describes body parts in different organisms?
form?Which
Why is Precambrian history more difficult to study than more recent geological history?
Precambrian history is more difficult to study because the rocks from this era have undergone significant alteration and destruction over billions of years, making them harder to interpret. Also, the lack of well-preserved fossils in Precambrian rocks makes it challenging to reconstruct ancient environments and ecosystems accurately. Additionally, the vast timescale of the Precambrian era poses difficulties in accurately dating events and establishing a precise chronology of geological events.
What are two way organisms use nutrients from food?
they use it to build body parts and make cells
What body parts does a flamingo use for survival?
All of them. As do all other organisms, including you.
What are two organisms use nutrients from food?
they use it to build body parts and make cells
