Ecology Answers

.

Calculate the transpiration rate for the grape leaf above with a leaf surface area of 18 cm

2

.

Air

temperature was

21 degrees C, reference relative humidity was 35%, experimental relative humidity

was 43%

,

and barometric pressure was

759

mm Hg (1 mm Hg = 1.33322 mbar).

Flow rate was 125mL/

min

Describe methods of food chain

Does active transport need energy from respiration?

What osmotic problem does a paramecium face in it's habitat

 Why is Savanna so extensive than any other biome?

1.Put the following steps of the scientific method in order of progression.

Analyze results.

Design the experiment.

Revise hypothesis/experiment or find new research.

Make observations and ask questions.

Develop a hypothesis.

Support or Refute hypothesis.

 2.Match the Following Elements of an Experiment

Control

Independent

Dependent

Hypothesis

The variable you purposely manipulate.

The variable that is not changed or been manipulated.

Is an explanation to a question that is both testable and tentative.

The variables that are generally kept constant across all groups within an experiment.

3 A scientist testing the effects of a chemical on lettuce yield, sprays a field with the chemical. A second field does not receive the chemical. The amount of lettuce harvested from each field is measured.

What is the hypothesis?

What is the independent variable?

What is the dependent variable?

What is the control group?

State [3 marks] and describe [9 marks] three sustainable indigenous knowledge practices.