Question :
Richard was observing black swallowtail butterflies in the field. Which one of these is an observation he made about a black swallowtail butterfly?
The black swallowtail laid its eggs on a parsley plant.
Question 2.
Question :
The most valid and reliable test of the hypothesis, more pine seeds germinate after a forest fire, would include an experimental group of pine seeds that was recovered from a fire area and pine seeds that were —
tolerant of fire.
Question 3.
Question :
A student wanted to look at plant growth in five different soil samples. He planted the same type of seeds in identical containers and left them together in full sunlight. He gave each plant the same amount of water and charted the growth of each plant stem. What is the independent variable in this experiment?
soil
Question 4.
Question :
For the following statement, what is the dependent variable?
Does the color of the recycling bins red or blue effect the number of cans recycled at school?
amount of recycling
Question 5.
Question :
The first step of the scientific method involves:
making observations.
Question 6.
Question :
Some insects can “walk on water” because:
water has a high surface tension
Question 7.
Question :
Carbohydrates are used for
Student Answer: structure and for energy.
Question 8.
Question :
Lipids are used for
energy storage and for hormones.
Question 9.
Question :
The instructions for growth, development, metabolism, and reproduction of a cell are contained in:
DNA
Question 10.
Question :
The 'sequence', or order of amino acids in a protein is termed its ____________, whereas the 3-dimensional structure of a two proteins interacting with each other is termed its ____________.
Student Answer: primary structure, quaternary structure
Question 11.
Question :
Which of the following might be referred to as “working macromolecules”?