#Question id: 11798
#SCPH05 I Biotechnology
Companion cells transport of photosynthetic products from producing cells in mature leaves to the sieve elements in the minor veins of the leaf. There are at least three different types of companion cells in the minor veins of mature, exporting leaves, All three cell types have dense cytoplasm and abundant mitochondria;
#Question id: 2628
#SCPH28 | Zoology
Choose true statement about lac repressor;
#Question id: 15229
#SCPH28 | Zoology
#Question id: 22950
#SCPH01 Biochemistry
#Question id: 9153
#SCPH28 | Zoology
Imagine some cosmic catastrophe jolts Earth so that its axis is perpendicular to the orbital plane between Earth and the sun. The most obvious effect of this change would be ________.