Atypical animal cell containing the appropriate organelles is illustrated here. scientists have determined that cellular organelles have specific functions. they include:

nucleus - control center; contains dna

ribosome - site of protein synthesis

mitochondria - powerhouse; produces cellular energy

endoplasmic reticulum - movement of substances through the cell

golgi appararus - packaging biomolecules

cell membrane - regulates what enters and leaves the cell; homeostasis

suppose this cell is part of animal muscle tissue. how would we modify the model?

a) increase the number of mitochondria.

b) increase the number of golgi apparatus.

c) remove the cell membrane and add a cell wall.

d) attach additional ribosomes to the endoplasmic reticulum.

If the frequency of the p allele is .63 in the population then what is the frequency of the q allele?

On a recent expedition to a remote region of northern canada, scientists uncovered skeletal remains from about 100,000 years ago. surprisingly, all the skeletal remains, which included many species from differing biological families and spanned about two thousand years, showed evidence of experiencing temperatures in excess of 1000 degrees fahrenheit (or 538 degrees celsius). which of the following, if true, best explains the apparent paradox between the cold environment and the evidence of the bones experiencing hot temperatures? (a) chemical changes that naturally occur during the process of decay in only one north canadian species produce the same evidence of the species' skeletons being exposed to hot temperatures as the expedition scientists found. (b) a little over 103,000 years ago, a large fire is known to have occurred in northern canada. (c) strong evidence exists that as early as 70,000 years ago, homo sapiens around the world relied heavily on fire to cook animals. (d) in the same expedition and in roughly the same layer of excavation, scientists found rudimentary wood cutting and hunting tools used by early humans.

Osmosis is often viewed incorrectly as a process driven directly by differences in solute concentration across a selectively permeable membrane. what really drives osmosis? view available hint(s)osmosis is often viewed incorrectly as a process driven directly by differences in solute concentration across a selectively permeable membrane. what really drives osmosis? the first law of thermodynamicsthe difference in the height of water columns on either side of a selectively permeable membranethe difference in water concentration across a selectively permeable membranethe difference in sugar or ion concentration across a selectively permeable membrane