Answer:
D i think sorry if its wrong ;-;
Photorespiration limits casualty products of light reactions
that build up in the absence of the Calvin cycle. In many plants,
photorespiration is a problem because on a hot, dry day it can drain as much as
50% of the carbon fixed by the Calvin cycle. The closing of stomata reduces access to CO2
and causes O2 to build up. These conditions favor a seemingly not useful process
called photorespiration. In most plants
(C3 plants), initial fixation of CO2, via rubisco, forms a three-carbon
compound. In photorespiration, rubisco
adds O2 instead of CO2 in the Calvin cycle. Photorespiration eats up O2 and
organic fuel and releases CO2 without producing ATP or sugar. Photorespiration
can evolve relic because rubisco first evolved at a time when the atmosphere
had far less O2 and more CO2.
Viruses are similar because they move around freely.
<h3><u>Answer;</u></h3>
primary ecological succession
A glacier retreats exposing bare rock and allowing communities of organisms such as moss and lichens to move in. This is an example of <u>primary ecological succession.</u>
<h3><u>Explanation</u>;</h3>
- Primary succession is a type of succession that occurs following an opening of a pristine habitat, for example, a lava flow, an area left from retreated glacier, or abandoned strip mine.
- <em><u>Primary succession occurs in lifeless area; that is regions in which soil is incapable of sustaining life.</u></em>
- <em><u>The first organisms to appear in areas of primary succession are often mosses or lichens, often known as pioneer species because they are the first species present.</u></em>
