Answer:
due to natural selection , if the predator of the gazelle declines, then the prey the gazelles will increase since there isn't many cheetahs killing them anymore.
the second should be competition, since there will be more gazelles needing to eat.
Explanation:
Answer:
abiotic basically means NON LIVING (like water,soil, air)
so.. earlier like thousands of years back there was no life on earth thus it is said that earth was abiotic
but later on biosphere arrived through maybe cynobacteria...
Answer:
The membrane will move to the left in view of the applied pressure.
Explanation:
The scenario described can be perfectly illustrated through understanding the concept of osmosis.
Osmosis can be defined as the movement of particules or molecules in a solvent from a region of lower concentration to a region of higher concentration, through a semi permeable membrane.
To put differently, the movement of water molecules is from a region of lower osmotic pressure to a higher one. And for osmosis to be achieved and water molecules evenly distributed, pressure built must be slow and steady to a state of high or equilibrium.
This often results to movement of membrane to the left as a response to the osmosis phenomenon. Increasing the number of water molecules in the extra cellular fluid will thus accelerate this process, increase the pressure built up, and thus generate ripples from a lower area to a higher one. Osmosis is thus gradual and steady.
Answer:
No, it is not.
Explanation:
Looking at this chart, this looks to me to be a case of an x-linked recessive disease. (If you want to know how to tell, or got some context that this is not the case, let me know)
Remember that females have two x chromosomes and males have one x and one y chromosome. As this disease is recessive, this means that for a female to exhibit the disease, she must have both x chromosomes have the disease. If she only has one x chromosome with the disease, she's considered a carrier.
On the other hand, males are completely binary, as they only have one x chromosome - either their x chromosome has the disease, and they exhibit it, or their x chromosome does not, and they do not have the disease, nor do they carry it. Thus, males can also not be carriers.
A square on the chart is representative of a male, while a circle is a female. IV-2 is a square, thus he is a male. This means that he cannot be a carrier, so your answer is no.
If any of this doesn't make sense, feel free to let me know! Hope this helps.
Answer:
A) presence of a closed circulatory system
Explanation: