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kow [346]
3 years ago
11

Which two ideas did Darwin use to explain evolution? modern synthesis and natural selection acquired traits and modern synthesis

natural selection and common descent gene pools and common descent
Biology
2 answers:
il63 [147K]3 years ago
4 0
natural selection and common descent are the 2 ideas Darwin used to explain evolution
7nadin3 [17]3 years ago
4 0

Answer:

The correct answer would be natural selection and common descent.

Natural selection refers to the natural phenomenon by which a population evolves due to the presence of differential reproduction.

In evolutionary biology, the common descent describes how a group of organisms share a common ancestor.

Darwin also explained that the organisms evolve from a common ancestor as a result of natural selection.  

In different habitats or environment, organisms adapted differently as a result of natural selection and evolved in different species.

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Which type of limiting factor does the seasonal drought in the serengeti plains affect
padilas [110]

Limiting factors are those factors whose amount determines the growth of the species. Serengity plain is the plain in Africa. This plain experiences drought which is seasonal for seven months continuously and rainfall is extremely less and is about 4cm.

Therefore, abiotic factors like rain, temperature, weather, and soil composition etc. are the limiting factors that affect the drought in Serengity plain. Due to drought for long period, the grasses have been withered and the vegetation has been hampered.

5 0
3 years ago
You perform an experiment on two plants of the same species to find out what soil affects their growth the most. Both plants are
Nezavi [6.7K]

Answer:

Independent Variable - Soil, Dependent Variable - Height, Control Variable - Sun and Water

Explanation:

First we should define what the variables in the experiment are.

Independent variable is the aspect of the experiment that has a different value for each subject in order to find out how it affects the dependent variables.

Dependent variable is the variable that is kept under observation and recorded by the experimenters in order to track the changes and define its relationship with the other variables/parameters.

Control variable is the variable that is kept constant intentionally by the experimenters to be able to define the relationship between the other variables more clearly and easily.

In the example given in the question, there are one of each variable mentioned above which are, according to the definitions;

  • Independent Variable - The Soil
  • Dependent Variable - The Height Of The Plant
  • Control Variable - The Amount of Water and Sun Exposure

I hope this answer helps.

3 0
3 years ago
Most of the insulin manufactured today to treat diabetes is produced by
Vedmedyk [2.9K]
It is produced by transformed bacteria.
8 0
3 years ago
Compare the stucture of a food web with a food chain
zvonat [6]

 food chain:The simplest representation of energy in a community. At the base is energy stored in plants, which are eaten by small organisms, which in turn are eaten by progressively larger organisms; the food chain is an oversimplification in that most animals do not eat only one type of organism.  

------------------  

food web:the interconnected feeding relationships in an ecosystem. These relationships can be complex; some organisms may feed on more than one trophic level, or changes may occur depending on a species' life history stages or the availability of food.

7 0
3 years ago
Agriculture uses large amounts of water for imigation
lubasha [3.4K]

Answer:F

Explanation: I just know

4 0
3 years ago
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