A. thaliana, or arabidopsis, is a common weed. biologists have selected it over hundreds of thousands of other flowering plant species to serve as an experimental model organism because )it can withstand extremely cold climates(b)it can reproduce in 8–10 weeks (c) it produces thousands of offspring per plant (d) both b and c

The correct answer is option (d) "both b and c".

Explanation:

Experimental model organisms used in scientific investigations have to fulfill certain criteria in order to be useful in the laboratory. Two of the desired characteristics are being able to reproduce quickly and with enough number of offspring in order to study genetic behaviors. Arabidopsis thaliana characteristics of being able to reproduce in 8–10 weeks and producing thousands of offspring per plant (because it can produce thousands of seeds) makes it a model flowering plant for experimental studies.

d. the weight of the book

phaneritic textures in which phaner means visible so phaneritic textures are standard of impertinent volcanic rocks. these rocks crystallized gradually under the surface of earth. when the magma cools deliberately then the ores have chance to develop and produce long crystals.