Answer:
The correct answer is A.They secrete enzymes that break down dead matter or living organisms and absorb the released nutrients.
Explanation:
Most of the fungi are saprophytic which means they grow on dead and decaying organic matter like fallen trees, leaves, and dead animals and get nutrition by digesting these dead organic matter.
Fungi do not have stomach so they secrete enzymes like α- amylase, cellulase, xylanase, etc from their hyphae that helps in digesting complex organic molecules into simple form which can easily be absorbed by these fungus.
By decomposing these organic matter they recycle the nutrients and clean the pollution from the environment. So the correct answer is A.
Answer: B
Explanation: Aphthous ulcers are white, round, or oval lesions surrounded by a red halo that appear on the buccal mucosa.
Contact a helpline and see therapist
<h3><u>Answers;</u></h3>
-less than 1%
-Thrombopoiesis
-Megakaryoblast
-Thrombopoietin
-Megakaryocyte
-Proplatelets
-Platelets (thrombocytes)
<h3><u>Explanation</u>;</h3>
- Platelets (or thrombocytes) make up less than 1% of formed elements with a concentration between 150,000 and 400,000 per cubic millimeter. The production of platelets is called thrombopoiesis.
- From the myeloid stem cell, a committed cell called a megakaryoblast is produced. It matures under the influence of thrombopoietin to form a megakaryocyte.
- Megakaryocytes are easily distinguished both by their large size (about 100 micrometers [μm] in diameter) and their dense, multilobed nucleus. Each megakaryocyte then produces thousands of platelets.
- The process of how megakaryoctes produce thrombocytes was in question until 2007. Researchers reported that megakaryoctes produce long extension from themselves called proplatelets.
- While still attached to the megakaryoctye, these proplatelets extreough the blood vessel wall in the red bone marrow. The force from the blood flow "slices" these proplatelets into the fragments we know as platelets (thrombocytes).