Prior to cell division, the DNA material in the original cell must be duplicated. Why is this important?

Recycling: is expensive is not an effective means of conservation can only be done with paper and glass all of the above

In the africa savanna mor widebeasts are born than the enviroment

How would the path of urine flow through the excretory system be different if humans did not have a urethra or urinary bladder? Could we consciously control urination if these organs were missing? Adequately explain each of your answers.

One difference between mitochondria and chloroplasts isa) mitochondria use nadh while chloroplasts make nadh. b) mitochondria produce water from oxygen while chloroplasts produce oxygen from water.

The structure of cells has changed significantly over time. What concept explains the presence of mitochondria in cells? a. Biogenesis c. Spontaneous generation b. Endosymbiosis d. Chemosynthesis

Drake is comparing time people spend playing games on Xbox versus Playstation. In his study, individuals ages 10 - 15 are given Xbox's and individuals ages 16 - 25 are given Playstations.

How do scientists obtain knowledge about the world? Check all that apply.

What would the temperature of the surface be if the Earth did not have an atmosphere?

How would the lack of water affect cellular respiration?

Different types of normal tissues in the human body have different mitotic indices. From the following list, which normal tissues would you expect to have the highest mitotic index: muscle, skin, kidney, or lung? Explain your answer.