Biology Semester Review

Since a growing seed cannot carry out photosynthesis, it is packaged with nutrients.

Which two plant systems must interact to create nutrient-rich seeds?

• Root system and dermal tissue system

• Reproductive system and transport system

• Excretory system and digestive system

• Immune system and vascular tissue system

Answer explanation

Think of what a seed really is a baby plant.

The diagram shows the reproductive system of a plant.

Which of the following best describes the interaction that occurs between a plant’s

reproductive parts during self-fertilization?

• Pollen is released from the anther and is transferred to the stigma. A pollen tube

  forms and grows through the style. The pollen tube reaches the filament, where

  the sperm fertilizes the egg.

• Pollen moves from the ovule up through the style and is released from the stigma.

  The pollen is transferred to the anther, where the sperm fertilizes the egg.

• Pollen is released from the anther and is transferred to the stigma. A pollen tube

  forms and grows through the style. The pollen tube reaches an ovule within the

  ovary, where the sperm fertilizes the egg.

• Pollen is released from the stigma and is transferred to the anther. A pollen tube

  grows down from the anther through the filament and fuses with the ovule, where

  the sperm fertilizes the egg.

• a reduced supply of oxygen

• long periods of rainfall

• high concentrations of glucose

• little available water

The internal transport of water and minerals in plants requires that two systems work

together. Which diagram correctly describes how the two systems accomplish this?

• 
• 
• 
• 

• Root hairs convert minerals into glucose for immediate use by cells

• Root hairs decrease the need for osmosis and diffusion in vascular tissue.

• Root hairs prevent water loss in leaves through transpiration and gas exchange.

• Root hairs increase the surface area of the roots for nutrient and water

  absorption

During the process of circulation, the heart works in conjunction with which body

system?

• Endocrine

• Skeletal

• Nervous

• Respiratory

White blood cells come into contact with few microscopic parasites. This is because as

white blood cells attack harmful bacteria and viruses, they are shielded by the —

• nervous system.

• digestive system.

• integumentary system.

• skeletal system.

In the process of circulation, oxygen-depleted blood is pumped away from the heart

and toward the lungs. Oxygen-rich blood then returns to the heart. During this

process, the heart works in conjunction with which body system?

• Skeletal

• Respiratory

• Nervous

• Endocrine

Reproductive organs produce hormones that stimulate brain development and sexual

behavior in organisms. In this way, the reproductive system works in conjunction with

the —

• integumentary system.

• nervous system.

• skeletal system.

• respiratory system.

When a duck dives into cold water, the capillaries in its skin constrict and move

deeper below the surface of the skin. This reaction is an example of —

• excretion.

• homeostasis.

• synthesis.

• respiration.