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vova2212 [387]
2 years ago
9

(Q005) Humans are unusual because our cultural practices can actually change our environmental circumstances. We can change the

environment in which natural selection acts on our traits. Describe how this process has played out in the evolution of adult lactose tolerance. Describe how this process has played out in the maintenance of the sickle-cell trait. Can you hypothesize any similar situations where our future evolution may be influenced by cultural practices we have today?
Biology
1 answer:
mel-nik [20]2 years ago
7 0

Answer:

sickle cell disease or sickle cell disease is about the inheritance of metaplastic cells or cells that do not respect normal cell morphology from the mother or father to a child.

This is not associated with cultures, instead lactose tolerance is.

Explanation:

Lactose tolerance is basically an adaptation of the body in those humans who continue to drink milk throughout their lives, once the growth stage is over, milk should be suspended, although some continue to consume it and lactase continues to be encoded and expressed.

Some people for cultural reasons or environmentalist lifestyles do not drink animal milk, but rather vegetable milk.

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In Pavlov's original studies on classical conditioning, he used dogs as the subject of his experiment. The unconditioned stimulus was the <u>bowl of food</u> that he presented to the dog while the unconditioned response was the dog salivated in its excitement to see the food.
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2 years ago
A benefit of monoculture farming practices is what?
katen-ka-za [31]

The main benefits of the monoculture farming are that it has higher production, is more efficient, and has lower costs. All three advantages of the monoculture farming are making it much more attractive for the farmers as it is more profitable and easier for work.

In this type of farming there's no spaces of the arable land that are lost because it is all planted with the same culture, and there isn't any other cultures with which there should be made empty spaces in between.

The costs for farming are lower, and also the work is easier and more efficient because the machinery can be used in the same manner constantly and the work can go on systematically on the farmlands.

On the other hand, we have to mention that there are also negative effects of this type of farming like the total destruction of animal and plant biodiversity in the area where it is practiced, as well as making the entire crop vulnerable to diseases and environmental changes.

4 0
2 years ago
Ground squirrels are found in many areas of the United States. They live in underground burrows and are often attacked by birds
Ket [755]

The population of the ground squirrels will be limited by the population of the hawks. The population of the hawks, thus, will be a limiting factor for the population of the ground squirrels. The Hawks are the birds of prey that feeds on squirrels. With the increased number of hawks in the same area as them will put these squirrels in danger. The population of the tree squirrels, however, will have no affect on the population of the ground squirrels. The genetic variability and breeding season are not limiting factors for their population either.

Hence, the correct answer is 'option B - a population of hawks'.

4 0
2 years ago
Read 2 more answers
Salamanders, ospreys, snapping turtles, and beavers all live in aquatic habitats. Salamanders lay their eggs in small freshwater
AveGali [126]

Answer:

A. Salamanders

Explanation:

Specialists species are species that can thrive in a unique and limited range of resources. They require a specific environmental condition to reproduce and survive in  environment and also have limited or few diets they need for nutrition. These limiting characteristics put them at a disadvantage of being endangered and threatened.  

Salamanders are endangered species that are fast going into extinction. They require wetland (freshwater pools) for reproduction to be possible, and feed mainly on insects. This makes them specialist species.

Ospreys, snapping turtles, and beavers are all generalist species. They can all thrive in a wide range of environmental conditions, and also have varieties of diets they can get nutrition from to survive.

6 0
2 years ago
If a molecule of CO2 released into the blood in your left toe is exhaled from your nose, it must pass through all of the followi
stepladder [879]

Answer:

a) the pulmonary vein

Explanation:

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  1. Artery: pulmonary artery
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  3. Drains from: lungs
  4. System: Circulatory system

6 0
2 years ago
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