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Flura [38]
3 years ago
14

What density-dependent growth limiting factors kept the human population relatively low prior to the advent of agriculture?

Biology
1 answer:
4vir4ik [10]3 years ago
8 0

Answer:

Limited food supply and competition

Explanation:

Density dependent factors are those which in general lead to reduction of growth rate of population when the population density increases. One of such factor is availability of food and competition.

Whenever the density increased to an extent where the resources or available food becomes scarce or limited,then the growth rate of population decrease.  These factors generally lead to logistic growth pattern of population.  

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Radiation. Have a nice day.
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2 years ago
The flow of energy in an ecosystem is best
melamori03 [73]
The flow of energy in an ecosystem is best described as energy moving in one direction from the sun to the producers then to the consumers. 

Explanation; 
Energy flow is the amount of energy that moves through successive trophic levels of a food chain in an ecosystem. Ecosystem maintain themselves by cycling energy and nutrients.
The energy from sunlight is taken up by producers which use it to produce organic compounds through photosynthesis. The energy is then passed successively to the trophic levels, that is from the producers to the consumers ( primary, secondary, tertiary and quotienary consumers). During this transfer some energy is lost at each trophic level in form of heat. 
4 0
3 years ago
Read 2 more answers
Organic matter in soil is also called _____.
9966 [12]

Answer:

The correct answer would be humus.

Humus is the organic material of the soil formed by the decomposition of the dead plants and animals. It is thick and dark in color (brown or black) and can also be produced by the process of composting.

It is very for the soil as it adds moisture to the soil, enhances the structure of the soil which increases the aeration and drainage.

It favors the growth of organisms (such as earthworm) helpful for the growth of plants and adds lots of nutrients to the soil, specially nitrogen.

In contrast, loam is a type of soil which is composed of silt, sand, and clay in 40-40-20 ratio. Regolith referred to the superficial layer covering the solid rocks or bedrock. It is formed by the accumulation of soil, dust, broken rocks etc on the bedrock.

Lastly, talus referred to the slope which is formed by deposition of shattered rock debris at the base of a cliff.

7 0
2 years ago
Read 2 more answers
How can I measure the ripeness of a banana through sugar content or softness for my science experiment? ​
Serhud [2]

Answer:

You can use a refractometer to measure sugar content in upripe and ripe bananas and evaluate how important the formation of sugars is in the ripening process. If other unripe fruits are available, expand this study to include these other fruits

6 0
2 years ago
Please Help ASAP... Will mark brainiest... 100 points
rjkz [21]

Answer:

A

Explanation:

because dinosaurs roamed the earth way longer than that.

sorry if im wrong buddy

4 0
2 years ago
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