Organs
What will be an ideal response?
are collections of tissues grouped together based on a common function. Organs are present not only in animals but also in plants
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Which of the following is true about genetically modified foods?
a. They have been genetically altered by adding genes from an alternate organism. b. All of their genes have been sequenced, so their entire genome is known. c. Portions of their DNA have been manipulated, and genes have been moved to different chromosomes. d. They have undergone natural selection, and some important genes have been inserted
Water that moves through nonliving regions of root, such as air spaces in root tissue, is following the ____
a. symplastic pathway only b. transmembrane and symplastic pathways c. transmembrane pathway only d. apoplastic, transmembrane, and symplastic pathways e. apoplastic pathway only
All of the following are components of the adherens junction complex EXCEPT
A. intermediate filaments. B. linker protein. C. cadherins. D. Ca2+. E. actin filaments.
Induced pluripotent stem (iPS) cells ______________________
(a) are created by the expression of a set of key genes in cells derived from adult tissues so that these cells can differentiate into a variety of cell types. (b) require a supply of donor egg cells, such as embryonic stem cells. (c) can differentiate into a greater variety of adult tissues than embryonic stem cells. (d) are created by nuclear transplantation.