Answer:
A quick change in environment can cause the extinction of a species because the animal in question may not be able to adapt fast enough. For example, urbanization can cause an animal species may go extinct because of the sudden change.
If there is a slow change in environment, the animal in question may go extinct because of lack of resources. If it is a predator, its prey may migrate. Therefore, it will starve.
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This is when. The sequence of events that result in the contraction of an individual muscle fiber begins with a signal—the neurotransmitter, ACh—from the motor neuron innervating that fiber. The local membrane of the fiber will depolarize as positively charged sodium ions (Na+) enter, triggering an action potential that spreads to the rest of the membrane will depolarize, including the T-tubules. This triggers the release of calcium ions (Ca++) from storage in the sarcoplasmic reticulum (SR). The Ca++ then initiates contraction, which is sustained by ATP (Figure 1). As long as Ca++ ions remain in the sarcoplasm to bind to troponin, which keeps the actin-binding sites “unshielded,” and as long as ATP is available to drive the cross-bridge cycling and the pulling of actin strands by myosin, the muscle fiber will continue to shorten to an anatomical limit.
The answer is C. The widely used technique for finding extraterrestrial life is use of SETI (search for extraterrestrial intelligence) dishes that listen for radio waves from outer space. NASA has also been sending radio waves to outer space with messages that could purportedly be decoded by alien intelligent life.
It is called a nucleus. It's what determines what type of metal, gas, or whatever on the table.
Answer:(A) Paleoanthropology
Explanation:
Anthropology is discipline which studies about human beings their evolutionary development, culture and societies.
Paleoanthropology is the branch of anthropology which studies the early development of the anatomically the modern humans. This is done through reconstruction of the kinship lines which can be achieved with biological evidences like skeletal remains, footprints, fragments of bones and cultural evidences like stone tools, and artifacts formed and developed by modern humans.
According to the given situation, the chimpanzees were seen to develop weapon against the small primates called as galagos. As chimpanzees were the ancestors of modern humans thus paleoanthropology, which is the primary type of biological anthropology can be used to address the research.
