Why is embryonic stem cell research controversial? a. it requires the destruction of embryos to use the stem cells in research. b. it forces a mandate for all employees to submit to approval of stem cell research c. it reduces the overall potency of the cells. d. it causes birth defects in the embryos that have stem cells extracted.

Option A, It requires the destruction of embryos to use the stem cells in research.

Explanation:

In embryonic stem cell research, the stem cells are obtained from the blastula stage of embryo which causes its destruction. Embryo duting the blastula stage consists of two types of cells a) trophoblastic cell and b) inner cell mass. This inner cell mass contains the embryonic stem cell which is responsible for developing all the cells of the body and hence once this inner cell mass is destroyed no new cell is produced in the body and thus the embryo dies.

hydroxyl -oh

alcohols, always polar, can form hydrogen bonds with h2o molecules

carboxyl -cooh  

cargoxylic acids, has acidic properties which is a source of hydrogen ions, found in cells in ionized for with a charge of oh-1

carbonyl > co

ketone if within skeleton, aldehyde if group is at the end of skeleton, k & a may be structural isomers, it determines 2 sugars (ketose & aldose)

amino -nh2

amines, acts as a base, it can pick up h+ ions from surrounding solution, ionized with charge of 1+

methyl ch2

addition to rna/dna affects and gene expression

phosphate -opo3 ²⁻

organic phosphates, contributes to negative charge to, molecule that it is a part of, and potential to react with h20

sulfhydryl -sh

thiols, cross-linking stabilize the protein, and it is structure

a. seed plant structure. 1. the three main plant organs are roots, stems, and leaves. a fourth kind of tissue, meristematic tissue, is responsible for plant growth. meristematic tissue is the only plant tissue that produces new cells by mitosis. plants can lose water out of their leaves as they exchange gases with the air

explanation: