My Answer: The death rate begins to fall, but birth rates remain high for a time.
Why?: Many of our countries are in Stage 2, that is why the government is concerned about our overpopulation.
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Water
Soil
The sun
Atmospheric Gases
Temperature.
These are just a few of many, but all abiotic factors are not living. Hence A-Biotic
Biotic means living, so when you put the ''a'' prefix it means the opposite of living.
Answer: Option B - There are more than four genes that determine this trait.
Explanation:
The tobacco plant species have its leaf colour with characteristics that changes gradually over a range of values, which refers to continuous variation.
Note that continuous variation keep expressing gene variants in successive generations of the tobacco plants, that differs from the parents. So, there are MORE THAN four genes controling the expression of varying phenotypes in the leaves
Image and options are not provided in the question, the image is attached below and the complete question is as following:
Study the image. Which best describes what the picture shows? an organism a community:
A. an organism
B. a community
C. a niche
D. a population
Answer:
D. a population
Explanation:
Biological organization is defined as a hierarchy of complex biological structures and systems on the basis of several related philosophical ideas.
It shows the arrangment of organism or biological structures from simplest form to complex, it includes atom, molecule, organelle, tissues, cells, organ systems, organisms, populations, communities, ecosystem, and biosphere (not arranged in sequential manner).
The given picture is related to a population because it shows groups of organisms of the same species, that is rats.
Hence, the correct option is D.
The answer would be C because iron is magnetic