Calcium deficiency disease (hypocalcemia) --- like osteoporosis, osteopenia !!
<span>When the genes propagate from one area to another.
The founder effect happens when genetic diversity declines due to an external larger group of organism invades a set of current living population. An example of this process is when the British colonies invaded the Mesoamerican continent where native americans lived and were outrun by the British colones, especially since many wars were made and ethnic cleansing. </span>
Answer:
Open-mindedness. Capable of accepting new and different ideas.
Skepticism. Having an attitude of doubt.
Honesty. Scientists report results truthfully.
curiosity. leads to new scientific knowledge.
creativity. involves coming up with new sources and ways to solve problems or produce things.
Answer: More than 99 percent of all organisms that have ever lived on Earth are extinct. As new species evolve to fit ever changing ecological niches, older species fade away. But the rate of extinction is far from constant. At least a handful of times in the last 500 million years, 75 to more than 90 percent of all species on Earth have disappeared in a geological blink of an eye in catastrophes we call mass extinctions.
Though mass extinctions are deadly events, they open up the planet for new forms of life to emerge. The most studied mass extinction, which marked the boundary between the Cretaceous and Paleogene periods about 66 million years ago, killed off the nonavian dinosaurs and made room for mammals and birds to rapidly diversify
Answer:
1)A
2) C
3)A
4)C
I am pretty sure these are all right :D
Explanation:
