Plant DOL 1

The outermost layer of plant stems in dictoyledons of epidermal cells and guard cells that surround openings called stomata. The edidermal cells are usually covered with a waterproff layer that provides protection from injury and water loss. The stomata allow gas exchange. The epidermal cells and stomata have functions similar to those of which two human body systems?

• Skeletal and respiratory

• Cardiovascular and skeletal

• Integumentary and respiratory

• Cardiovascular and integumenary

Tags

NGSS.MS-LS1-2

Leaves are part of a plant's shoot system. The xylem tissue in leaves transports

• The bacteria needed for nitrogen fixation in root nudules

• The wax required to coat the surface of actively growing tissue

• The water and minerals that are absorbed by the roots

• The oxygen that regulates the rate of carbohydrate production

Tags

NGSS.MS-LS2-3

Leaves are part of a plant's shoot system. The Phloem tissue in leaves transports

• The bacteria needed for nitrogen fixation in root nudules

• The wax required to coat the surface of actively growing tissue

• The sugar needed to provide the nutrients the plant requires

• The oxygen that regulates the rate of carbohydrate production

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3

Coracias garrulus is a blue bird with an orange-brown back. The offspring of this bird have an effective defense mechanism. The young birds vomit and cover themselves in a foul-smelling orange liquid when they sense a threat by predators. Which two systems alert the young bird to the danger and help produce the vomit it uses as a defense?

• Nervous and digestive systems

• Integumentary and muscular systems

• Immune and respiratory systems

• Excretory and reproductive systems

Tags

NGSS.MS-LS1-3

The female reproductive and endocrine systems work interactively for which main purpose?

• To maintain homeostasis by removing waste products from the body

• To release neurotransmitters during times of stress

• To control hormone levels to prepare the body for pregnancy

• To exchange gases to support cellular aerobic respiration

A student studying interactions between body systems constructs this table. The student plans to fill out the table with phrases that describe an interaction between each pair of systems.

Which of these phrases could be placed in the position marked with an X?

• Provides nutrients to kidney cells

• Provides nutrients to brain cells

• Provides nutrients to nerve cells

• Provides nutrients to muscle cells

Tags

NGSS.MS-LS1-3

Breaking down food for nutrients involves many body systems. A student made a partial list of the processes that occur.

Salivary enzymes begin to break down starch molecules in food.

Gastrointestinal enzymes are released in response to a hormone signal.

Nutrients are absorbed into the bloodstream from the small intestine.

Which body systems interact most directly in the three listed processes?

• Digestive

  Integumentary

  Muscular

• Excretory

  Immune

  Muscular

• Circulatory

  Excretory

  Immune

• Circulatory

  Digestive

  Endocrine

Which statement best describes an interaction between the muscular system and the respiratory system?

• The hormone adrenaline causes blood vessels to contract and send more blood to major

  muscles.

• Metabolic wastes generated by muscle cells are eliminated in urine.

• The diaphragm contracts causing the chest cavity to expand, which draws air into the

  lungs.

• Nutrients absorbed in the small intestine are transported in blood to the brain.

In the 1880s, Louis Pasteur developed a method of weakening viruses. The weakened viruses could be injected into healthy individuals.

How is this method effective in fighting viral diseases?

• The immune system develops antibodies in response to the weakened viruses.

• The weakened viruses attach to unaffected viruses in the host and interrupt the viral

  reproductive cycle.

• The rate of genetic mutation in the host is decreased due to the introduction of weakened

  viruses.

• Weakened viruses are unable to enter the host organism.

The 1918 influenza epidemic killed between 50 million and 100 million people worldwide. This epidemic happened near the end of World War I. More people died from the influenza epidemic than were killed in the war. Which of the following explains why this virus was so deadly worldwide?

• Infected soldiers returning from the war spread the virus when they coughed.

• Food was scarce because of the war, so people were undernourished, and their immune

  systems were weakened.

• Medical personnel often became ill as a result of exposure to airborne virus particles.

• All of the above

Tags

NGSS.MS-LS2-4