Subscription pricing
Some types of organisms originated through endosymbiosis, the engulfing of one organism by another so that a part of the former becomes a functioning part of the latter. ██ ███████ ████████████ █ █████████ ████ ████████ ███ ███ █████████ █ ████ ████████ ███ ████ ██████████ ██████ █ █████ █████ ██ █ ███████████████████ ███ ████████ ██ █ ██████████ ████ ████ ████ █████ ██ ███ ███ ██ ████ ████████████ ███ ███ █████ ██████ ██ ████ ████ █ ██████ ███████ ██ ████ ████ ██ ███ ███████████ ████ ███ ███ ███████ ██ ██ ████████ ██████████ ████████
Summary
Organisms can be created through endosymbiosis, which is when organism A absorbs organism B, so organism B becomes part of organism A. We’ve also learned that a particular plant, “C,” contains a strange nucleomorph. Nucleomorphs are similar to cell nuclei, and contain DNA. The nucleomorph in plant C is strange because its DNA has two copies of a certain gene, which we would only expect if the nucleomorph had originally been an absorbed organism’s nucleus.
Strongly Supported Conclusions
The facts above strongly support the conclusion that the nucleomorph in plant C was originally an organism that was absorbed, meaning that plant C is a product of endosymbiosis.
22.
Which one of the following ██ ████ ████████ █████████ ██ ███ ███████████ ██████
a
Only organisms of █████ ████ ██████████ ███████ █████████████ ███████ █████████████
b
A nucleomorph within ███ ██████████████████ █████ ███ ██ ███ ███████ ████████ ██ ████ █████ █████████
c
Nucleomorphs originated when ██ ████████ █████████████████ ████████ █ ███████████████████
d
Two organisms will ███ ███████ █████████████ ██████ ██ █████ ███ ██ ████ ████████ █ ████████████
e
Chlorarachniophytes emerged as ███ ██████ ██ ███ █████████ ██████ █████████ ██████████████