The answer is A. a light wave
C and D both need water as a medium and sound needs air to vibrate in order to travel. light, on the other hand, does not need a medium
In meiosis, the chromosome pairs do the crossing over where there is an exchange of genetic material between them and because of it the
chromatids held together by the centromere are no longer the same.
D! They are both decomposing dead organic matter and metabolizing it through certain pathways to obtain energy! Hope this helped :)
Answer for question 1- B (eliminate all plant life)
Answer for question 3- A (Direct energy from the Sun)
(i’m not entirely sure what the answer is to question 2 and i do apologies if any of this incorrect)
Answer: Option B
Explanation: The thin layer that forms the outer covering of the cell is known as the cell membrane. It is composed of the lipid bilayer which as embedded proteins.
This membrane is selectively permeable which means it allows only specific molecules to pass through them.
The main function of cell membrane is to protect the cell from the outer environment and by the invasion of harmful bacteria and viruses.
