Answer:
The population of fish with pelvic spines that arrived in the lake at time B evolved a reduced pelvis over time (beginning at time C).
(Having a reduced pelvis must have been advantageous for this ancient stickleback population, just as it is for many current freshwater stickleback populations.)
Answer:
A lot
Explanation:
Many mutations are non harmful, but rarely some can be harmful.
FAULT-TOLERANT computer systems are systems that are built with
the ability to keep working to
a level of satisfaction, even in the presence of faults within one or more of
its components. <span>This
fault tolerant ability is sometimes referred to as graceful degradation</span>
Answer:
A population ecologist uses many terms while writing his case study. Match each term to its definition.
an indication of the number of individuals of a population and the area that they occupy
population density
an increase in the number of individuals of a species over a period of time, expressed as a percentage
growth rate
the number of live births per 1,000 organisms of a species in a year
Birth rate
the number of deaths per 1,000 organisms of a species in a year
death rate
Explanation:
Answer:
(A) True
Explanation:
The sun is producting the electromagnetic radiation which is the primary energy source on Earth and the driver of the entire climate system.
In general the sun is the source of energy that drives all life on Earth. This energy governs the weather, ocean currents and the hydrological cycles.
Without the continuous influx of sunlight and heat, life on Earth would cease to exist. The sun sets off the hydrological cycle, causing it to constantly evaporate into the atmosphere, from which it falls back to Earth.
