Which is a difference between bacteria and viruses that show that bacteria are living organisms and viruses are not

The extra calories for pregnancy are needed mostly during which trimester (s) ?

Made when sediments fill in a cavity made when an object decayed and the sediments harden into rock

Fungi play the role of decomposer in a ecosystem a) true b) false

Which of the following is the contribution of Al-Khwarizmi to the world of mathematics? A. He developed the formula and process used to make Persian rugs. B. His work became the basis for algebra. C.

The physical characteristics of two large predatory animal species are shown in the table below. X - Short canine teeth, eat small prey size Y - 1-foot-long canine teeth, eat large prey size Which species will most likely survive if the prey

In some proteins, the side chain of serine appears to undergo ionization. explain why ionization would be facilitated by the presence of an aspartate residue nearby.

Define and explain the term scientific theory

The table below shows the number of the sub-atomic particles in an atom of nitrogen. Sub-atomic Particles Sub-atomic Particle Number Protons 7 Neutrons 7 Electrons 7 What is the amu of a nitrogen atom?

The ions in a compound form and orderly three-dimensional arrangement called a molecule. true or false

How would a scientist study the relationship between the Tiktaalik roseae and modern fish and tetrapods? create a diagram that hypothesizes ancestry use relative dating use transitional fossils to determine age review its analogous structures