Question

nurse cells are found in sporangium of

Answer 1

In the bone marrow, immature red blood cells (erythroblasts) can be seen grouped in a cluster around a nurse cell. The epithelial cell found in the cortex of the Thymus is also called a "nurse cell." These cells produce Thymic hormones that cause T Lymphocytes to mature and differentiate.

Answer 2

Riccia is an appropriate answer.

Explanation:

• Riccia belongs to the Marchantiales' own circle of relatives of Bryophyta.
• The male and girl gamete-bearing systems are referred to as antheridium and archegonium respectively.
• Sexual duplicate is of oogamous type, which means it takes region with the aid of using a fusion of motile male and non-motile girl gametes.
• Fertilization affects withinside the formation of a diploid zygote which develops right into a sporophyte.
• Nurse cells are sterile, nutritive cells containing watery vacuolated cytoplasm.
• Later, the nurse cells, apothecium, and the internal layer of the venter degenerate to shape a nutritive viscous fluid. The mature sporophyte, referred to as sporogonium, stays connected to the gametophyte.

The spores are launched most effectively whilst the venter wall and gametophytic tissue degenerate.

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