Science final term 1 grade 8

What is selective breeding

• The process of breeding plants or animals with random traits to produce offspring with unpredictable traits.
• The process of breeding plants or animals with undesirable traits to produce offspring with those traits.
• The process of breeding plants or animals with specific desirable traits to produce offspring with random traits.
• The process of breeding plants or animals with specific desirable traits to produce offspring with those traits.

What is genetic engineering

• The process of studying an organism's genetic makeup.
• Biological and chemical methods that change DNA's arrangement that makes a gene

• The process of creating new organisms from scratch.
• The process of altering an organism's physical appearance.

What is a gene

• A gene is a structure in the nucleus of a cell that stores energy.
• A gene is a type of protein found in cells.
• A gene is a small molecule that carries genetic information.
• A gene is a segment of DNA that contains the instructions for building and maintaining an organism.

Mass is size-independent

• True

• False

What is weight

• The amount of food consumed by an organism.
• The distance between two points.
• The speed at which an object moves.
• The measure of the force of gravity on an object.

What is volume

• Measure of space occupied
• Amount of sound produced
• Number of pages in a book
• Weight of an object

To measure regular shaped object's volume use =

• V= Height x width x length

• Graduated cylinders, flasks and more

• Water displacement method

To measure liquid's volume use =

• V= Height x width x length

• Graduated cylinders, flasks and more

• Water displacement method

To measure irregular shape's volume use =

• V= Height x width x length

• Graduated cylinders, flasks and more

• Water displacement method

What is Recombinant DNA

• Recombinant DNA is a type of DNA that is created by splitting DNA into smaller fragments.
• Recombinant DNA is a type of DNA that is created by combining DNA from different sources.
• Recombinant DNA is a type of DNA that is only found in plants.
• Recombinant DNA is a type of DNA that is naturally occurring in all living organisms.