Active transport requires energy because it moves molecules across a membrane to a region of lower to higher concentration which is often against their concentration gradient or has an obstructing factor.
Answer:
The daughter cells are genetically identical because mitosis is a process that ensures the equal distribution of the replicated genetic material between these cells
Explanation:
During mitosis, the DNA is duplicated during the interphase (S-phase). Subsequently, the replicated chromosomes are arranged in the center of the parent cell (metaphase) to be finally separated and equally distributed between the daughter cells.
Explanation:
In a food chain, only 10% of energy is transferred from one trophic level to another trophic level. If the energy produced at the producer level is 1000 J, then the energy available at the primary consumer level will be 100 J and energy available at the secondary consumer level will be 10 J.
The fossil record essentially keeps track of the abundance and appearance of various fossils during different time periods. As time goes on, the fossils change. Using the fossil record, we can compare and contrast the fossils to develop theories about changing life forms and their connection to time.
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First, a complete digestive system means that the digestive tract has a beginning or the oral end and the opposite end or the aboral end. This is found in more complex animals starting from roundworms (flatworms have an incomplete digestive tract). A closed circulatory system is found in animals more recent than mollusks. The presence of the coelom makes it more evolved than the flatworms.
Specifically, a small animal with a segmented body, short stiff appendages, and soft skin with the above characteristics point out to the phylum Annelida or annelids.
