Which of these is an example of how engineers have contributed to society

I need to know about mitosis and meiosis

A protein is a polymer that is made of a. simple sugars. c. amino acids. b. nitrogen and carbon dioxide. d. DNA.

You have the equations: 2H2O (l) →2H2 (g) + O2 (g), △H=572 kJ 2N2 (g) + 3H2 (g) →2NH3 (g), △H=-138 kJ 2NO2 (g) + 7H2 (g) →2NH3 (g) + 4H2O (l), △H=-1.18*103 kJ 2NO2 (g) →2N2 (g) + 2O2 (g), △H=□ What is the missing △H? -1.38*103 kJ +99.0 kJ +1.

What are the properties of matter

Evidence shows that interstellar bodies are moving far away from earth some faster than others which best suggest that the universe A is shrinking. B Is expanding. C. Was not formed by a Big Bang. D. Has always been the same size will mark brilliant

Convert 4.57X-3m to the equivalent length in nanometers

A rock falls off a cliff and hits the ground after three seconds. What is its velocity right before it hits the ground? 9.8 m/s 0.31 m/s 29.4 m/s 3.3 m/s

Which compound is an isomer of pentane? (1) butane (3) methyl butane (2) propane (4) methyl propane

Which of the following has primary responsibility for eliminating alcohol from the bloodstream

A hydrocarbon with only single bonds is classified as a. an alkene. b. an alkyne. c. saturated. d. unsaturated.