Which scientist invented the very first optical microscopes and was also the first person to view single-celled organisms living in pond water?

What is the main function of carbohydrates in living organisms

Why are the structure and function of the pont du gard described as "marks of roman civilization"?

Which of the following is not a reason for cluster distribution of organisms? a. localized availability of resources b. herd behavior c. hive behavior d. territorial behavior

Type of active transport were food like molecules are transported into the cell

John enjoys experimenting with color changing lizards. He places a green lizard on a brown background and a brown lizard on a green background. John knows the green lizard should turn brown and the brown lizard should turn green.

A stuffed toy with a mass of 0.900 kilograms sits on the edge of a bed at a height of 0.830 meters. If the toy falls off the bed, what will its mechanical energy be at a height of 0.500 meters? (Ignore frictional effects.) A) 0.0 J B) 3.6 J C) 7.

Which of the following is true? A. Some substances must be dissolved in water before they can be used. B. Water is more important to some organisms. C. All organisms obtain water through food. D. Plant cells are unaffected when water is scarce.

These bio-molecules serve many functions throughout the body including signaling molecules, receiving signals, transporting other molecules or ions across the cell membrane, catalyzing reactions, regulating gene expression, and defending the body

In facilitated diffusion, what is the role of the transport protein?

2. Black fur (B) in guinea pigs is dominant over white fur (b). Find theprobability of an offspring with the same phenotype as its parents in across between a homozygous black and a heterozygous black guineapig . A. 0%, 25%B. 25%, 25%C. 50%,50% D.