Dinosaurs emerged during what time period? A. Paleozoic Era B. Mesozoic Era C. Proterozoic Eon D. Cenozoic Era

What is the formation of male sex cells called?

Which statement best describes how the distance from a large river affects

How is a recessive allele different from a dominant allele? O A. A recessive allele does not always determine the trait. O B. A recessive allele always determines the trait. O C. Only one recessive allele is enough to affect the trait O D.

Which revision correctly uses an appositive to combine the sentences? my american history teacher is named mr. turner. mr. turner taught us about the u. s. home front during wwii. my american history teacher taught us about the u. s.

Which best describes mitochondria DNA (mtDNA) ?

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.