Question 1

Which cells contain a nucleus and membrane-bound organelles?

prokaryotic

eukaryotic

archaean

cyanobacteria

Heat always flows from a place to a place.

What did Edward Jenner discover about the relationship between smallpox and cowpox?

Macrosociology and microsociology seem to make very different assumptions about how society works. how does sociology, as a discipline, deal with these two very different perspectives?

The three basic components of all connective tissues are

Which statement about microevolution and macroevolution is true? Microevolution can lead to macroevolution. Macroevolution can lead to microevolution. Genetic drift cannot affect microevolution. Natural selection only acts on macroevolution.

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