The primary functions of the stem are to support the leaves; to conduct water and minerals to the leaves, where they can be converted into usable products by photosynthesis; and to transport these products from the leaves to other parts of the plant, including the roots.

When you increase the level of light, plants will photosynthesize more. With too little light, photosynthesis cannot occur either and the plant suffers without the production of sugars. There are many complicating interactions between plants and light.

A] Stomata are necessary because they are the only plant cells that actively undergo photosynthesis. The cuticle prevents gasses from entering cells. If it were not for stomata, the water vapor would build up inside the leaf, and the leaf would lyse.

Stomata are pores on the leaf surfaces that open and close to regulate water and gas exchange. The cuticle helps seal in the water, making the leaves virtually waterproof.

Gases such as carbon dioxide diffuse much more slowly in water than in air. Plants that are fully submerged have greater difficulty obtaining the carbon dioxide they need. To help ameliorate this problem, underwater leaves lack a waxy coating because carbon dioxide is easier to absorb without this layer.

Aquatic plants, also termed as hydrophytes or aquatic macrophytes, live within watery environments. Most aquatic plants do not need cuticles or have thin cuticles as cuticles prevent loss of water. 2. Aquatic plants keep their stomata always open for they do not need to retain water.

In aquatic environments, free-floating microscopic plants known as algae, and larger submersed plants (macrophytes), release oxygen directly into the water where it is used by animals and other organisms, including the plants themselves.

Oxygen dissolves into water from two sources: the atmosphere and from plants in the water. The primary source of oxygen for a pond is from microscopic algae (phytoplankton) or submerged plants. In the presence of sunlight, these produce oxygen through photosynthesis and release this oxygen into the pond water.

Division. The division propagation method is, by far the simplest and most common propagation technique.

Submerged Plants

• American Pondweed. Asian Marshweed. Baby Pondweed.
• Brittle Naiad, Marine Naiad. Brittle Waternymph.
• Cabomba, Fanwort. Coontail.
• Cutleaf Watermilfoil. East Indian Hygrophila, Hygro.
• Egeria. Elodea.
• Fineleaf Pondweed. Floating Pondweed.
• Horned Pondweed. Hydrilla.
• Indian Swampweed. Large-leaf Pondweed.

roots

Aquatic plants have less rigid structure since water pressure supports them. Since they need to float, leaves on the surface of plants are flat. Their roots are smaller so water can spread freely and directly into the leaves.

Plants that grow in water are called hydrophytes or aquatic macrophytes. Aquatic flowering plants can grow submerged in water, floating on water, or near bodies of water—for example, at the edges of lakes, streams, or ponds. Some species of flowering aquatic plants grow entirely underwater.

Answer. Explanation: The desert is a dry area with scarcity of waters thus the plants there have small leaves and many spines which help them to conserve water. The leaves have thick waxy skins which help to retain water for a long time.

epiphyllums

A habitat is a place where an organism makes its home. A habitat meets all the environmental conditions an organism needs to survive. For an animal, that means everything it needs to find and gather food, select a mate, and successfully reproduce. The main components of a habitat are shelter, water, food, and space.

1a : the place or environment where a plant or animal naturally or normally lives and grows. b : the typical place of residence of a person or a group the arctic habitat of the Inuit.

A habitat is an environment where an organism lives throughout the year or for shorter periods of time to find a mate. The habitat contains all an animal needs to survive such as food and shelter.