Answer:
0.1
Explanation:
The Net Reproduction per individual per unit time (r) can be calculated as (births-deaths)/population size
Given that:
Population size of mice = 1,000; Birth = 500; Death = 400,
Net reproduction rate (r) = (births-deaths)/population size
r = (500 – 400)/1000
r = 100/1000
r = 0.1
The Net reproduction per individual per unit time (r) is 0.1
Before
Principle of superposition of strata
Younger
Principle of cross cutting
Explanation:
Relative dating is method of assigning ages to geologic events in nature. This is based on certain principles and laws proposed by earlier geologists.
Relative dating differs from absolute dating in that absolute dating assigns real quantitative numbers to geologic events.
- From the analogy of the building provided, according to the principle of superposition of strata, the oldest layer is at the bottom of the sequence and the youngest on top.
- The lowest part of the section must of the section must have been constructed before the parts above it were constructed.
- Based on the principle of cross cutting "geologic features that cuts another are usually younger than the sequence they cut through ".
- The cracks on the wall is cross-cutting feature that appeared after the wall was formed.
- Therefore, it is younger than the wall.
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Answer:
maybe but not probable
Explanation:
Larger image Flowing lava can carve or build paths very much like the riverbeds and canyons etched by water, and this probably explains at least one of the meandering channels on the surface of Mars. ... Lava is generally not thought to be able to create such finely crafted features.
<span>The destruction of salt marshes will directly harm each organism except for the deep ocean squid. Salt marsh is an area between land and brackish water which is known to flood. It collects sediments and nutrients that are very essential to the ecosystem.</span>
Answer:
Landscape fabric, weed barrier and weed barrier fabric are names for the same product. It is a black mesh type of plastic that is used extensively in landscaping to keep weeds out of your garden.
