Which activity distinguishes the larva stage from the pupa stage of an insect?

Explain why it is not accurate to call a virus that kills bacteria a “bacteria eater."

sergiy2304 [10]

Answer:

When viruses attack cells, they release genetic material that is coded to multiply, then the cells divide and more viruses are spread, the viruses do not eat.

Explanation:

8 0

3 years ago

If the number of cigarettes smoked increases, then the risk for lung cancer increases. Independent variable: _______ Dependent v

hodyreva [135]

Complete Question:

Part A: Identifying Variables

Read the following hypotheses and identify the variables.

If the number of cigarettes smoked increases, then the risk for lung cancer increases.

Independent variable: _______

Dependent variable: _______

If the number of sharks swimming in a coastal region increases, then the number of shark attacks on humans will also increase.

Independent variable: _______

Dependent variable: _______

If the amount of milk a person drinks increases, the strength of his or her bones will stay the same.

Independent variable: _______

Dependent variable: _______

Answer/Explanation:

Dependent variables are variables that is dependent on the independent variables. That is, it is the variable that changes as the independent variable changes.

Depedent variable is the main interest if a researcher. It is the variable that is measured in a research work.

In the above given hypotheses, the dependent and independent variables are shown below:

1. "risk for lung cancer" is dependent on the "number of cigarettes smoked".

"Risk for lung cancer" => dependent variable

Number of cigarettes => independent variable

2. "number of shark attacks on humans" is dependent on "number of sharks swimming".

Dependent variable => number of shark attacks on humans

Independent variable => number of sharks swimming

3. Dependent variable => strength of bone

Independent variable => amount of milk a person drinks

3 0

3 years ago

Read 2 more answers

Indicate the direction in which RNA polymerase moves as it transcribes this gene. Indicate the direction in which RNA polymerase

anastassius [24]

Answer:

RNA polymerase moves along the template strand in a 3'-to-5' direction.

Explanation:

RNA polymerase is an enzyme involved in the synthesis of an RNA molecule from a DNA molecule. The process of synthesis of an RNA molecule is known as transcription which takes place in the nucleus of eukaryotes.

The DNA strand which is transcribed into the RNA molecule is known as template DNA and run from the 3'to 5' end.

The RNA polymerase enzyme binds to the promoter region which initiates the reaction. The RNA polymerase enzyme forms the RNA molecule in 5'to 3' direction by adding new nucleotide at 3'end, therefore, it has to move on the template strand with 3' to 5' direction.

Thus, the selected option is correct,

7 0

3 years ago

There are three types of tectonic plate boundaries. When two plates slide past each other, they form a ______ boundary. A ______

nlexa [21]

Answer:

transform boundary: when two plates slide past each other

divergent boundary: when two plates pull away from each other

convergent boundary: when two plates collide with each other

:)

3 0

2 years ago