Midterm - Test Corrections

What is the independent variable in the following hypothesis? HYPOTHESIS: If I add more light to my flowers, then the flowers will grow taller.

• The number of blooms on each plant

• Height of the flowers

• The amount of light added

• Amount of time for the flowers to bloom

Tags

NGSS.MS-LS1-5

NGSS.MS-LS2-1

The student observes a cell divide and produce four genetically different cells. The student has observed the process of

• meiosis

• mitosis

• prophase

• osmosis

Tags

NGSS.HS-LS3-2

The purpose of the cell cycle is

• produce a cell that has 1/3 the number of chromosomes as the parent cell

• produce a cell that will mutate as it grows

• produce two new daughter cells that have the same number of chromosomes as the parent cell

• allow the cell to absorb oxygen

Tags

NGSS.HS-LS1-4

What are the three main phases of the cell cycle?

• interphase, mitosis, cytokinesis

• telophase, metabolism, and transpiration

• prophase, interphase, respiration

• photosynthesis, transpiration, and mitosis

In Deoxyribonucleic acid, Adenine pairs with the nitrogen base ___

• thymine

• cytosine

• guanine

• uracil

DNA is sometimes referred to as a ladder. Which two molecules make up the sides of the DNA ladder?

• phosphate and deoxyribose sugar

• phosphate and nitrogen base

• nitrogen base and ribose

• phosphate and ribose

Categorize the following:

• Phenotype

• Genotype

• Neither

• Green Eyes, Curly Hair, Attached Earlobe, Happy Personality, Blonde Hair, Straight Hair, Blue Eyes, Blue Shoes

• AA, Aa, Bb, CC, Cc, DD

A good example of science and technology is how the advances in have helped us investigate cells and how they work to sustain life processes.

• beakers

• thermometers

• microscopes
• telescopes

Tags

NGSS.MS-LS1-1

The oxygen molecules in a cell begin to spread from areas of high concentration to areas of low concentration. What type of movement has occurred within the cell?

• Selective Permeability

• Active Transport

• Diffusion

• Osmosis

A dog's paw and a human's hand have similar bones, but each are designed to function much differently. This is an example of fits function.

• environment

• height

• form
• cycle

Tags

NGSS.MS-LS4-2