Answer: (B) Prothallus
Explanation: Prothallus is the gametophyte stage in the life of <u>a fern or other pteridophyte</u>.
Gene therapy is replacing defected genes with new ones, the goal is to be able to cure some diseases caused by defected genes or make them better
Answer:
Option D, inhibiting the production of lymphocytes
Explanation:
Options for the question are -
A.slowing the shortening of telomeres.
B.accelerating the production of NK cells.
C.stimulating the release of endorphins.
D.inhibiting the production of lymphocytes.
Solution
Acquired immune deficiency syndrome (AIDS) is an acquired immune deficiency syndrome cause by human immunodeficiency virus (HIV) infection.
CD4+ T lymphocyte is an essential part of in immune responses and an HIV attacks on the immunity of an individuals by killing CD4+ T lymphocyte.
In general, out of total T lymphocytes , there are nearly 65% of CD4+ T lymphocytes a healthy individual. The remaining T lymphocytes are CD8+ T lymphocytes
An HIV infected person, has damaged body's immune system leading to decrease in number of CD4+ T lymphocyte as of hampered CD4+ T lymphocyte production.
Hence, option D is correct
Answer:
Here:
Explanation:
High 64F
Low 46F
High 18C
Low 8C
two seasons, dry seaosn and wet season with a lot of rainfall
Tropical rainforest climates have high temperatures: the yearly average temperature is between 21 °C to 30 °C ( 70 °F to 85 °F ).
average precipitation value of at least 60 mm
