I don't believe there are any. Organisms rely on something for water, food, nutrients, etc. Plants are probably the closest to not rely on anything since they produce their own food by photosynthesis.
Answer:
Hey bro Ur answer is A)
Explanation:
The definition of an ecosystem is that ecosystem consists of all the organisms and the physical environment with which they interact. These biotic and abiotic components are linked together through nutrient cycles and energy flows.
The tomato plants, the fungi, and the soil all interact to sustain each other.
Unlike casts and molds, which create a replica of an organism's skeletal structure or full body impression, trace fossils provide information about an organism's activities. Trace fossils such as footprints or burrows can indicate how an organism moved.
Simple diffusion and facilitated diffusion both allow molecules to cross the cell membrane without any expenditure of energy by the cell. They are each classified as a type of passive transport.
Answer: Oogenesis
Explanation:
Oogenesis is a process in female reproductive system in which a matured ovum is formed from egg cell.
In human reproductive system one mature ovum is produced from four haploid cells during meiosis. This ovum is very large and it unite with the sperm to produce zygote.
There are three stages of Oogenesis, the multiplication phase,the growth phase and maturation phase.
In the multiplication phase, the germinal cells divide to form oogonia. The oogonia multiply and form oocytes. The oocytes pass through the growth phase and mature to form ovum.
