Answer:
A. Porifera
Explanation:
Parazoan is a sub-kingdom of animal consisting only of the phylum of sponges (porifera), having two tissue layers only and lacking a nervous system and true digestive cavity.
They have certain characteristics like: sponges are marine, but there are some freshwater sponges that enjoy their water without salt. Most sponges do not have any type of symmetry, but some are radially symmetrical and they come in a variety of shapes, colors, and sizes, they are multicellular, heterotrophic and lack cell walls. Unlike other organisms, sponges lack true tissues and organs.
The mesohyl functions as an endoskeleton in most sponges, and is the only skeleton in soft sponges. This mesohyl is stiffened by mineral spicules, by spongin fibers or both.
Your answer would be... B. The climate on Earth has changed over time.
The correct answer is D,
dose this help?
Answer: Protein folding and oligomerization
Explanation:
Binding immunoglobulin protein (BiP) is a vital protein present in humans essential for the translocation of secreted peptides.
BiP is a molecular chaperone which is present in lumen of ER (endoplasmic reticulum) which binds to the new protein and then translocat into the ER. The protein in ER is maintained under subsequent condition and important for protein folding and oligomerization (conversion of a monomer or group of monomer into an oligomer).
Several other functions of BiP are:
- ER translocation
- ER-associated degradation (ERAD)
- UPR pathway
Hence, BiP is a chaperone, it is important for protein folding and oligomerization.