Answer:
they come from embryos, have properties of embryonic stem cells, Perinatal stem cells.
Explanation:
Embryonic stem cells. These stem cells come from embryos that are three to five days old.
Adult stem cells.
Adult cells altered to have properties of embryonic stem cells (induced pluripotent stem cells).
Perinatal stem cells.
Answer: B. great impact when humans use alternative water sources for non drinking functions.
Great impact when humans use alternative water sources for non drinking functions is the correct option because use of alternative water sources can deplete the overall available water for the present as well as for the future generation of the human population. This is against the concept of sustainable development which suggests that natural resources should be used in such a way so that these can meet the needs of the present population as well as that of future generation.
Answer;
-Endocytosis
Explanation;
-Endocytosis includes; phagocytosis, pinocytosis, and receptor mediated: Endocytosis brings substances into the cell, plasma membrane surrounds the substances to be taken in, encloses them in a membrane-bound sac (vesicle) and brings them into the cell
-Phagocytosis: endocytosis of large solid particles (“cell eating”)
-Pinocytosis: endocytosis of extracellular fluid that contains dissolved solutes (“cell drinking”)
-Receptor-mediated: highly selective, ligands bind to specific receptor proteins on the plasma membrane and are then taken into the cell
-Exocytosis: the reverse of endocytosis: substances are removed from the cell; vesicles fuse with plasma membrane and release their contents into the extracellular fluid; important in nerve cells to release neurotransmitter and secretory cells to release cell products (ex. digestive enzymes, protein hormones).
Actually, flowers haven't genders, like " woow, that's a male flower". WROOONG. Flowers have, indeed, parts of themselves that are their male reproductive system and their female <span>reproductive system. Butt* the part of the flower that develop, as you said, into a fruit it's the ovary, after being pollinated by pollen from the anther of another flower (ovary is the female part of the flower and the anthers are the male part)
*that's a joke, ok?
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