Answer:
A hypothesis is a testable idea which can support an explanation. If there is no way to demonstrate the validity of a hypothesis, it cannot support an explanation. Therefore, it cannot be accepted by the scientific community. ... However, a hypothesis can still be useful whether it supports an explanation or not.
Answer:
A. is increasing
Explanation:
The phrase "these days" tells us that we want something in the present. If it wanted the past, it would say "in those days" or something similar. So we can cross out d and b, because they are past tense.
It can't be c, because the subject-verb agreement is wrong (it would be increases, not increase).
We can conclude that the answer is a, <u>The population of the world these days </u><u>is increasing</u><u> very fast.</u> It's currently increasing.
The most significant relic of this species is an upper femur that reveals indications of bone development typical of a biped, indicating that Orrorin tugenensis individuals likely walked upright on two legs while simultaneously climbing trees.
A hypothetical early Hominin species called Orrorin tugenensis was identified in 2000 and is thought to have existed between 6.1 and 5.7 million years ago. How Orrorin is connected to contemporary humans is unknown. Although this remains the most popular theory of human evolution as of 2012, its discovery was used to refute the idea that australopithecines are human forebears. The name of the only classified species, O. tugenensis, comes from the Tugen Hills in Kenya, where the first fossil was discovered in 2000. The name of the genus Orrorin (plural Orroriek) means "original man" in Tugen. Twenty fossils of the species have been discovered as of 2007.
To learn more about Orrorin tugenensis here
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Answer:
Xylem transports water and mineral salts from the roots up to other parts of the plant, while phloem transports sucrose and amino acids between the leaves and other parts of the plant.
Spinalis thoracis extends the spinal column
