Answer:
Senescence
Explanation:
Chlorophyll degrades during leaf senescence causing the change of colour in autumn leaves.
Protozoa are single-celled eukaryotes that share some traits with animals. Like animals, they can move, and they are heterotrophs. That means they eat things outside of themselves instead of producing their own food
Answer:
- Autotrophs are usually defined as those that can prepare their own food by carrying out the process of photosynthesis, but heterotrophs cannot prepare their own food and are directly dependent on the autotrophs for food. Examples of autotrophs are plants and trees, and examples of heterotrophs are animals and human beings.
- Autotrophs are the lowest organisms in the trophic level, where they produce the food for the consumers (heterotrophs). On the other hand, the heterotrophs lie above the autotrophs and when they consume their food, they obtain only 10% of the energy, and the remaining energy is released into the environment.
- Autotrophs can make organic substances by the use of inorganic molecules, but heterotrophs cannot make these substances. They are only dependent on the molecules prepared by these autotrophs.
Thus, these are three of the facts regarding autotrophs and heterotrophs existing on earth that are true.
Pretty sure it is A. Like a sample population
The bone that is located at the center of the rib cage is called STERNUM.
There are 24 ribs in the human body and these are divided into two set of bones. The first seven bones are called true ribs and attached by cartilage directly to the sternum, which is at the center of the rib cage. Three of the remaining ribs which are called false ribs are attached to the sternum indirectly while the remaining two, called floating ribs are not attached to the sternum.
