Which table shows two steps of DNA replication? F
Step 1
Step 2
DNA Polymerase matches uracil to
thymine and cytosine to guanine.
Two identical DNA double helixes are
produced.
G
Step 2
Step 1
DNA Polymerase matches cytosine to
thymine and uracil to guanine.
Two separate but complementary
single DNA strands are produced.
H
Step 1
Step 2
DNA Polymerase matches adenine to
thymine and cytosine to guanine.
Two identical DNA double helixes are
produced
J
Step 1
DNA Polymerase matches uracil to
thymine and adenine to guanine.
Step 2
Two separate but complementary
single DNA strands are produced.

With the description of the different cell walls, membranes, and associated proteins set in the students' minds, you now need to introduce them to the idea that the cell wall can also act as a foundation to build things upon. bacterial appendages require a strong foundation that will offer the support needed to move and function in a dynamic world. for example, flagella are long, whiplike protein structures that are used by many gram-positive and gram-negative bacteria for locomotion. in order to function effectively, a flagellum must be firmly anchored to the cell wall. how will you be able to get across the idea that the peptidoglycan cell wall is strong enough to support such a mechanism? with a protein rod that passes through the cell wall and protein rings used to anchor it in the membranes, these basal bodies are the rudimentary biological motors that use atp power to spin the hook and the flagella attached to it. bacterial flagella have a biological motor that spins within the cell wall and is powered by atp. this allows the flagella to spin in a whiplike motion to propel the bacterium.

'which of these statements about the scientific method is not true? all experiments must follow the same number of steps in the procedure. experiments may be repeated several times. some unexpected results can be beneficial. experimental results may or may not support the hypothesis.

1. watermelon, papaya, oranges, bananas, and lemons are included in this food group. vitamin c 2. you need 6 or more servings of this food group each day vitamins d and a 3. found in fruit and keeps blood vessels healthy calcium 4. vitamins found in milk bread and grain 5. a mineral that strengthens bones fruit