The blade is the flattened portion of the leaf. These expanded blades are called lamina which are attached to the plant stem by the petiole. They come in diverse shapes, sizes, and other characteristics. The other choices are just supporting structures of this structure of the plant.
Type of neuron that receives messages from the environment is a sensory neuron ie it receives messages from the 5 senses which are used by man to investigate the environment.
Answer:
Zebra mussels feed on phytoplankton, which zooplankton need as a food source.
Explanation:
The population of zooplankton in Lake Erie and the Hudson River declined due to the arrival of zebra mussels because Zebra mussels feed on phytoplankton, which is the main source food of zooplankton. So due to limited or scarcity of food in the environment, the zooplankton die due to hunger that leads to the decrease of population of zooplankton in that environment.
<span>An element is a pure substance that cannot be broken down into a simpler form.
All elements are listed on the periodic table of elements.
An element symbol begins with a capital letter; if there is a second or even third letter, it is a lowercase letter.</span>
