are the twitching movements of muscle fibers caused by spontaneous contractions of all muscle fibers in a motor unit that is caused by irritation and hyperexcitability of the cell body and its motor neuron. This is suggestive of ___ disease and can be assessed .

Research cheetahs on the internet what has contributed to this animal becoming "endangered" or "threatened." what animal you have chosen? -cheetah how long has the animal been endangered or threatened? what has contributed to this animal’s endangered or threatened status? why is it important to save this animal from extinction? after researching and gathering facts, write a 350-word letter from the point of view of an animal rights' activist. be sure to include at least five facts that you learned from your research.

What does the hardy-weinberg principle relate to? a. chances of survival of an organism b. frequency of alleles in a population c. natural selection in a species d. causes of evolution among organisms

Which feature of a human community is similar to a niche in a biological community