Which of the following best describes the stomata?

• Cells surrounding the tiny openings of a leaf that open and close

• Tissue in a leaf that allows large amounts of light absorption

• Spongy tissue in a leaf that allows for movement of gases within the leaf

• The tiny openings in the underside of a leaf's outer layer of dermal tissue

Tags

NGSS.MS-LS1-6

The vascular tissue of plants is MOST similar in function to what structures in the human body?

• The veins, arteries, and capillaries

• The bone cells of the skeletal system

• The cardiac muscle of the heart

• The outer layer of skin tissue

Tags

NGSS.MS-LS4-2

The sugars produced by photosynthesis are transported by which structures in a vascular plant?

• Phloem

• Xylem

• Chloroplast

• Endoplasmic reticulum

Tags

NGSS.MS-LS1-6

Ferns are seedless vascular plants. Which of the following is the primary method of reproduction in ferns?

• Parthenogenesis

• Vegetative propogation

• Spores

• Seeds

The veins in the leaf of a plant are made up of bundles of _____________.

• palisade and spongy mesophyll

• cuticle and epidermis

• anther and filament

• xylem and phloem

Bacteria play very important roles in the ecosystem, but they are especially important in the nitrogen cycle.

Which of the following best describes the role(s) bacteria play in the nitrogen cycle?

• Different species of bacteria carry out nitrogen fixation, denitrification, and decomposition.

• Bacteria are parasites to many species of animals that depend on nitrogen for their survival.

• Several species of bacteria are producers that provide nitrogen-rich food for small animals.

• All bacteria produce nitrogen gas in their unique form of cellular respiration.

Tags

NGSS.MS-LS2-3

Which of the following best describes the stigma?

• The narrow “neck” of the carpel

• The part of the stamen that makes pollen

• The base of the carpel that contains the seeds

• The part of the carpel designed to catch pollen

Which of the following would NOT aid in the dispersal of the seeds of a plant?

• seeds with long fibers attached that catch the wind

• seeds with hard shells that resist digestive enzymes and acids

• seeds inside a fruit that tastes unpleasant to most animals

• seeds with bristles that allow them to stick to the fur of passing animals

Which of the following will most likely increase the chances a plant will be pollinated by a bird?

• brightly colored flowers

• long, shallow roots

• stomata that open and close

• seeds that crack open easily

Tags

NGSS.MS-LS1-4

The movement of water through the roots, stems, and leaves of vascular plants is essential to their survival.

Which of the following are the main processes that allow water to move through plants?

• Transpiration and capillary action

• Condensation and evaporation

• Mineralization and precipitation

• Infiltration and sublimation

Tags

NGSS.MS-ESS2-4