The diagram below shows the light reactions of photosynthesis. The orange arrows represent the path of electron flow. Which molecule does the oval labeled 'A' represent?
Primary
tletico
Acceptor
B
Primary
Electron
Acceptos
2e
Reaction
center
chlorophy
Reaction
center
chlorophy
A
Second
Photosystem
First
Photosystem
Image Source: Essential Biology with Physiology by Simon E. J. et al; 5th ed; Pearson; 2016
CO2
02
O H₂O
ATP
NADPH
Kk

a and b

that is wrong, its not thymus.

both male and female gametes are produced by meiosis of the germ cells. therefore, both male and female gametes are haploid. one male and one female gamete unite during the fertilization to form the diploid zygote. in seed bearing plants, pollen grain is the male gametophyte, which produces sperm cells.

several tissues working together form an organ, and several organs together make up an organisms.

the group of cell that carries out special jobs are tissue.