Answer:
2. blood vessels under the skin expand
Explanation:
i just took that quiz and i got it right :)
Robert Hooke was the first scientist to discover cell. This discovery was made possible by the use of microscope which he invented. With this microscope, Robert examined a cork and noticed pores which filled the entire volume of the thin slices of cork; he called the pores cells. This discovery was made in January 1653.
Because the majority of cell differentiation occurs during the EMBRYONIC phase, .................. The embryonic stage of pregnancy is the period after implantation during which all the important organs and structures in the growing fetus is formed. Tetratogens are factors that caused malformation of embryo. Exposure to tetratogens during embryonic stage cause most destructive damages.
Answer:
1) <em>Ribosome</em>
<em>2</em><em>)</em><em> </em><em>heart</em>
<em>3</em><em>)</em><em> </em><em>Robert</em><em> </em><em>Hooke</em><em>. </em><em>-</em><em>></em><em> </em><em>discovered</em><em> </em><em>the</em><em> </em><em>cell </em>
<em> </em><em> </em><em> </em><em> </em><em>M </em><em>J </em><em>Schleiden</em><em> </em><em> </em><em>-</em><em>></em><em> </em><em>all </em><em>living</em><em> </em><em>organisms</em><em> are</em><em> </em><em>made</em><em> </em><em>up</em><em> of</em><em> </em><em>cells </em>
<em> </em><em> </em><em> </em><em> </em><em>Rudolf</em><em> </em><em>virchow</em><em> </em><em>-</em><em>></em><em> </em><em>new </em><em>cell</em><em> </em><em>are</em><em> </em><em>arises</em><em> </em><em>only</em><em> </em><em>from</em><em> </em><em>pre </em><em>existing</em><em> </em><em>cells</em>
<em>4</em><em>)</em><em> </em><em>plants</em><em> </em><em>cell</em>
