Table of Contents
- 1 How do internal and external structures support the survival growth and behavior and reproduction of plants and animals?
- 2 How have the structures and functions of plants enable them to survive?
- 3 Why do plants have internal and external structures?
- 4 How do plants adapt to dry conditions explain two adaptations that help plants survive with very little water?
How do internal and external structures support the survival growth and behavior and reproduction of plants and animals?
The functions of internal and external structures can support survival, growth, behavior, and/or reproduction in plants and animals (e.g., the heart pumps blood throughout the body, which allows the entire body access to oxygen and nutrients; thorns prevent predation, which allows the plant to grow and reproduce).
Do plants have internal and external structures that support growth and reproduction?
Plants and animals have both internal and external structures that serve various functions in growth, survival, behavior, and reproduction.
What internal structures help a plant support reproduction?
As a plant’s reproductive part, a flower contains a stamen (male flower part) or pistil (female flower part), or both, plus accessory parts such as sepals, petals, and nectar glands (Figure 19). The stamen is the male reproductive organ. It consists of a pollen sac (anther) and a long supporting filament.
How have the structures and functions of plants enable them to survive?
Plant Structure: Plants also have structures that help them survive. Plants have different parts, like roots, stems, leaves, flowers, and fruit. These structures help them survive. Some plants have really long roots that help the plant gather water from deep below the surface of the Earth.
What are internal and external structures?
External structures are what you see on the outside. The internal structures are the inner pieces and parts that keep organisms alive, help them grow, and help them reproduce.
What external structures do plants have that help them survive?
Roots, stems, leaves, and flowers. Explanation: Plants have external structures used for survival. Roots are used to absorb water, the stem keeps a plant upright, leaves are used to absorb sunlight and carbon dioxide to make food, and the flowers are used for pollination.
Why do plants have internal and external structures?
Structure and Function Plants and animals have both internal and external structures that serve various functions in growth, survival, behavior, and reproduction.
What external and internal structures help animals survive in the desert?
For example, they:
- have thick fur on feet protecting them from the hot ground;
- have large, bat-like ears radiate body heat and help keep them cool;
- have long, thick hair that insulates them during cold nights and protects them from the hot sun during the day;
How do plants respond to environmental changes?
Plants respond to their environment. They grow toward light. Plant leaves bud and seeds germinate when the temperature is right. Their roots and stems grow in certain directions in response to the pull of gravity.
How do plants adapt to dry conditions explain two adaptations that help plants survive with very little water?
To survive in drought conditions, plants need to decrease transpiration to limit their water loss. Some plants that live in dry conditions have evolved to have smaller leaves and therefore fewer stomata. These extreme leaf adaptations can also protect the plants from hungry and thirsty birds and animals (Figure 1).