Trachoma is a disease of the___________?
Trachoma is a disease of the___________?
A. Liver
B. Eyes
C. Lungs
D. Kidneys
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Silicon is an example of _________?
Silicon is an example of _________?A. No-conductor
B. Semiconductor
C. Super Conductor
D. None of theseThe Proportion of Hydrogen to Helium in the Sun is________?
The Proportion of Hydrogen to Helium in the Sun is________?A. 3:2
B. 3:1
C. 1:1
D. 3:4The sun is mostly composed of the elements hydrogen (H) and helium (He). By mass the composition of the sun is 75 percent hydrogen and 25 percent helium. Various metals make up less than 0.1 percent of the mass of the sun. The temperature of the sun’s surface is about 10,340 degrees Fahrenheit (5,726 degrees Celsius).
Which of the following is not a donor atom?
Which of the following is not a donor atom?A. Phosphorus
B. Antimony
C. Arsenic
D. AluminumWinter Solstice means____________?
Winter Solstice means____________?A. longest night
B. longest day
C. smallest night
D. smallest day__________ are called the powerhouses of the cell?
__________ are called the powerhouses of the cell?
A. Mitochondria
B. Vesicles
C. Lungs
D.LiverThe color of blood is red due to __________?
The color of blood is red due to __________?A. Haemoglobin
B. Neutrophils
C. Esinophils
D. HematocritHuman blood is red because hemoglobin, which is carried in the blood and functions to transport oxygen, is iron-rich and red in color. Octopuses and horseshoe crabs have blue blood. This is because the protein transporting oxygen in their blood, hemocyanin, is actually blue.