Lamark
Lamark
Jean-Baptiste Lamarck proposed the theory of evolution known as Lamarckism, which suggested that organisms evolve toward perfection and complexity through the inheritance of acquired traits. This theory has been largely discredited in favor of Charles Darwin's theory of natural selection.
Organisms in the proposed kingdom Archaezoa lack mitochondria. They are thought to have evolved early in the eukaryotic lineage before the endosymbiotic event that led to the development of mitochondria.
Colonial organisms likely evolved into multicellular organisms through a process known as cellular differentiation, where specialized cells with specific functions developed within the colony. This evolutionary transition allowed for increased complexity and efficiency in tasks such as reproduction, growth, and survival.
Darwin's theory of common descent states that all organisms evolved from past organisms.
Complex organisms evolved from simple organisms, so simple organisms evolved first.
Unicellular organisms evolved first; and from them evolved the multicellular organisms. But that leads onto another question as to why multicellular organisms evolved.
The complexity of body design will increase over evolutionary time. This is the process by which new modifications occur in the organisms. So, in this way we can say that advanced organisms will be complex as compared to complex organisms...
The theory that states organisms evolved from a common ancestor is the theory of evolution proposed by Charles Darwin in his book "On the Origin of Species" published in 1859. Darwin's theory of evolution by natural selection explains how species change over time through the process of adaptation to their environments.
Charles Darwin proposed the theory of natural selection as a mechanism for evolution in his book "On the Origin of Species" published in 1859. He suggested that organisms that are better adapted to their environment are more likely to survive and reproduce, passing on their advantageous traits to their offspring.
That's correct! The theory of evolution states that organisms have evolved over time from common ancestors through the process of natural selection. This gradual change in species over generations is driven by factors such as genetic variation and environmental pressures.
Organisms evolved 550 Ma to form shells. when the Conditions were right for formation of shells.