_______are important organs in all vascular plants

Most vascular plants have two types of roots _______and______

feature a single, thick primary root, called the ______, with smaller secondary roots growing out from the sides

have many small branching roots, called _______, but no large primary root

The tip of a root is called the______

These cells may have _______ that increase the surface area for the absorption of water and minerals from the soi

Roots have primary and secondary meristems for growth in_______and_______

______are the organs that hold plants upright so they can get the sunlight and air they need

_______is a combination of tissues that provides a tough, woody external covering on the stems of trees.

______are the keys not only to plant life but to all terrestrial life.

Nonflowering vascular plants have three basic types of leaves:

makes up most of the leaf’s interior

are made primarily of xylem and phloem.

The_______of the leaf consists of a single layer of tightly-packed dermal cells

______is a complex structure with a special job or a number of jobs to do

The ___ is the organ of sight.

The ______ are organs which get rid of water and poisonous materials from the body as urine.

The ______ has many jobs and is involved in more than one system

This system consists of the bones and the muscles (meat)

The _____ form the skeleton which is the framework within the body

_______ consists of the teeth, mouth, gullet (oesophagus), stomach, liver, intestine, pancreas, and rectum

the _____ is found in the chest cavity

The blood vessels which carry blood away from the heart are called______

______are found in the chest protected by the bony cage of the ribs

Respiration (breathing) consists of inspiration (breathing in) and expiration (breathing out).

The main organs are the two kidneys, which lie against the backbone, and the bladder.

The bones of the skull and backbone protect the soft brain and spinal cord

The _____ controls the body.

An _____ disease starts quickly and lasts for a short period when the animal either recovers or dies

A _____ disease lasts for a long time and weakens the animal

_____is defined as the information gained about a reaction to a product, which will allow the modification of the product

_______are therefore the process whereby a change to the system results in an alarm which will trigger a certain result.

______is the mechanism that enables us to keep our internal environment relatively constant – not too hot, or too cold, not too hungry or tired

_____uses the environmental temperature to control its internal temperature (e.g. reptiles, amphibians, and fish), whereas an endotherm uses homeostasis to maintain its internal temperature

______can maintain their metabolism at a constant rate, allowing constant movement, reaction and internal processes, whereas ectotherms cannot maintain their metabolism at a constant rate

A __________________ occurs in nature when the product of a reaction leads to an increase in that reaction

A __________________ occurs in biology when the product of a reaction leads to a decrease in that reaction.

The epidermis has tiny pores called ______