Study Island Life Science Review

Jewelweed, a flowering plant, has seed pods that burst open when touched and forcefully eject their seeds. These structures are favorable because they

• aid in the dispersal of the species.

• attract insects that aid in pollination.

• prevent germination within the seed pod.

• can cause genetic changes to occur.

Which of the following statements is true for all living things (organisms)?

• All living things have organs
• All living things produce their own food through photosynthesis
• All living things are made of one or more cells
• All living things are made of more than one cell

Tags

NGSS.MS-LS1-1

What is the most basic unit of life?

• Tissue
• Cell
• Organ
• Organ System

Tags

NGSS.MS-LS1-1

NGSS.MS-LS1-2

Which of the following is the best description of an organ system?

• The human heart and lungs
• A group of similar cells working together to complete a specific task
• The structure of an organ
• A group of organs working together to complete a specific task

Why are there so many different types of cells in multicellular organisms?

• Humans are relatively big
• Humans are heterotrophs
• Cells in multicellular organisms are specialized to complete different tasks or functions within the organism
• Cells in multicellular organisms are similar and complete only the same tasks or functions within the organism

Tags

NGSS.MS-LS1-3

What is the main advantage of asexual reproduction?

• Offspring are produced by two parents, making reproduction more difficult.
• Offspring contain genetic material from two parents.
• Offspring are produced by one parent, making reproduction easier.
• Offspring are only plants.

Tags

NGSS.MS-LS3-2

All living organisms are composed of

• at least three cells.

• only one cell.

• at least 100 cells.

• one or more cells.

Tags

NGSS.MS-LS1-1

The diagram below shows many features of a cell membrane. The extracellular fluid surrounds the outside of the cell. The cytoplasm fills the inside of the cell.

The diagram below shows many features of a cell membrane. The extracellular fluid surrounds the outside of the cell. The cytoplasm fills the inside of the cell.

• Some molecules can pass directly through the cell membrane.

• Proteins and other molecules can move around within the cell membrane.

• A cell membrane is made of two layers.

• Pores and proteins in the cell membrane allow passage through it.

Tags

NGSS.MS-LS1-2