Heidelbergensis is believed to have evolved from African H. erectus, also known as Homo ergaster, during the first early hominin advancements out of Africa, which are thought to have started around 2 million years ago. The one's who migrated through Europe and remained in Africa either speciated into H. heidelbergensis or underwent evolution.
Regional variations in Homo heidelbergensis eventually led to the emergence of two species of humans. Homo heidelbergensis populations in Europe gave rise to Homo neanderthalensis (the Neanderthals), whereas Homo heidelbergensis populations in Africa gave rise to our own species, Homo sapiens.
To learn more click on link below
brainly.com/question/10580074
#SPJ4
The first known single-celled organisms appeared on Earth about 3.5 billion years ago, roughly a billion years after Earth formed. More complex forms of life took longer to evolve, with the first multicellular animals not appearing until about 600 million years ago.
—————————————
The evolution of multicellular life from simpler, unicellular microbes was a pivotal moment in the history of biology on Earth and has drastically reshaped the planet’s ecology. How life originated and how the first cell came into being are matters of speculation, since these events cannot be reproduced in the laboratory. Nonetheless, several types of experiments provide important evidence bearing on some steps of the process.
———————————
It was first suggested in the 1920s that simple organic molecules could form and spontaneously polymerize into macromolecules under the conditions thought to exist in primitive Earth's atmosphere. At the time life arose, the atmosphere of Earth is thought to have contained little or no free oxygen, instead consisting principally of CO2 and N2 in addition to smaller amounts of gases such as H2, H2S, and CO. Such an atmosphere provides reducing conditions in which organic molecules, given a source of energy such as sunlight or electrical discharge, can form spontaneously. The spontaneous formation of organic molecules was first demonstrated experimentally in the 1950s, when Stanley Miller (then a graduate student) showed that the discharge of electric sparks into a mixture of H2, CH4, and NH3, in the presence of water, led to the formation of a variety of organic molecules, including several amino acids. Although Miller's experiments did not precisely reproduce the conditions of primitive Earth, they clearly demonstrated the plausibility of the spontaneous synthesis of organic molecules, providing the basic materials from which the first living organisms arose.
Answer:
6CO2 + 6H2O → C6H12O6 + 6O2
Explanation:
Answer:
centimeter
Explanation:
Description:
- used to measure length
- smaller than a meter
All answer choices are units that are used to measure length so the first hint isn't much help.
The only unit listed that is smaller than a meter is a centimeter so the answer would be centimeter.
1 Centimeter = 0.01 Meter
( If it helps to remember centi means one hundredth, so centimeter means one hundredth of a meter )
Many genes working together . Eoukdcbr be correct to
