Answer:
C- Law of Superposition
Explanation:
The Law of Superposition states that it is logical for older species (for example fossils or rock materials) to support the weight of younger species. This implies that the older species will be at the bottom while the younger will be at the top. Conversely, we can say that the younger species is superimposed on the older ones.
So Layer D is younger than Layer C because D comes after C in the alphabet.
Answer: Option C
Secretion hormone stimulates the release of pancreatic fluid.
Explanation:
Secretion is a digestive hormone secreted by the duodenum(upper part of small intestine) that stimulates the release pancreas fluid and regulates the water homeostasis thought out the body and around duodenum. Its also regulates pancreas, liver and stomach secretions.
True statements are
A diploblast has no mesoderm.
A pseudocoelom has the same functions as a true coelom.
In a coelomate, the tissue lining the inner side of the body cavity arises from the same germ layer as the tissue lining the outer side of the body cavity.
Explanation:
Diploblastic animals (radially symmetric animals like jelly fish, sea anemone) has only two layers – the endoderm and the ectoderm. It does not have mesoderm germ layer. Diploblastic animals are formed from the embryonic process called gastrulation from a blastula cells.
A true coelom and pseudocoelom may differ in their structure or location but their main function is the same. Since both are fluid-filled cavities, they act as hydrostatic skeleton disseminating extra pressure via the body to protect the internal organs and minimize damage.
Each germ layer gives rise to tissues pertaining to a particular organ or organ system. Like the mesoderm provides for muscles, nervous system and the endoderm gives rise to gastrointestinal organs, lungs etc. So the tissues lining outside and inside the body cavity will arise from the same germ layer.
