Answer:
availability of resources.
Explanation:
Availability of resources is abiotic factor which is responsible for the decrease in population in 1990 because when the population reaches its carrying capacity so the organisms compete with each other and due to limited resources such as food etc the decrease occurs in population. Infection is also occurs when there is high population due to which death occurs and population of organism decreases.
Rigid skeletons are formed from materials including chitin (in arthropods), calcium compounds such as calcium carbonate (in stony corals and mollusks) and silicate (for diatoms and radiolarians).
Answer:
jayfeather friend me
Explanation:
Answer: The mechanical advantage of a machine is 4. ... Mechanical advantage MA is the ratio of output (generated by the machine) force to input (applied to the machine) force. So MA = 4 means that for example if you apply 100 N then your machine will multiply that force and generate 400 N.
Fiorella is likely to smile slightly, while Juana is likely to hold a straight face.
<h3>What is Empathy?</h3>
This is defined as the capacity to understand or feel what another person is experiencing from within their frame of reference.
Low empathy involves inability to cope with emotional situations and are usually impatient which is why when shown photos of happy faces, they are more likely to hold a straight face.
Read more about Empathy here brainly.com/question/16253958
