Scientists found that the first living things were likely prokaryotic because eukaryotic are evolved from the prokaryotic only.
<h3>What do you mean by Natural selection?</h3>
Natural selection may be defined as favorable variations that assist the organisms to survive and reproduce in a particular habitat.
Individuals that are better suited to their environment are likely to have more offspring and pass their genetic material on to future generations. This theory is referred to as Natural selection.
Scientists hypothesize that oxygen began to accumulate in the Earth's atmosphere after the appearance of living things with the ability to Photosynthesize.
To learn more about Photosynthesis, refer to the link:
brainly.com/question/19160081
#SPJ1
Answer:
Carries food from the mouth to the stomach.
Explanation:
The esophagus is the tube in which chewed food travels after you swallow. It is directly connected to the mouth and the stomach.
<h3> Chemical level is the simplest level of organization in a human being. </h3>
Answer:
Explanation:The condition of the Rh factor is called __RH positive_when present and__rh negative_ when absent.
I think that these are A climate changes because they both got fur to match the snow/winter climate
I know it's not C cause this has nothing to do with food, and i don't think it's B either, so I think the best answer choice would be A
