I think Cognitive psychologists
Answer:
Antibodies are produced by __type B__ lymphocytes; cell-mediated immunity is provided by __type T__ lymphocytes.
Specific excretory organs are absent in unicellular organisms belonging to the<u> phylum Porifera.</u>
The organisms of the phylum Porifera are classified under the kingdom Animalia and they lack specific organs in their bodies.
The word "Porifera" refers to pore-bearing organisms.
These animals have loosely organized cells and are found in freshwater marine ecosystems.
On their body, a large number of pores - Ostia - are present which perform various functions such as excretion.
However, respiratory gases and waste materials are exchanged through a diffusion process.
Moreover, in them, reproduction takes place through fragmentation and budding.
If you need to learn more about excretory organs click here:
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Answer:
hello
Explanation:
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Answer:
Dar seems to be right
Explanation:
Deciduous teeth and permanent teeth grow similarly but one must realize that once deciduous teeth fall off then the permanent teeth starts to grow.
Here's a scientific article in support: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7811793/
This also matches the answer in quizl.et
