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iogann1982 [59]
4 years ago
8

A student made a model of an ecosystem inside a sealed plastic bottle. She

Biology
1 answer:
Anton [14]4 years ago
4 0

It illustrates the cycling of matter, just like in a natural ecosystem.

Option D.

<h3><u>Explanation:</u></h3>

The natural stable ecosystem is defined as the ecosystem which has the members doing their part of job and each and every member contribute to the stability of the ecosystem by completing food chains.

Here in this bottle ecosystem the boy put the stones, rocks, water which gives proper nutrition to the growing plants and animals which are also introduced by the boy. The plants produce oxygen and consume carbon dioxide whereas the animals consume oxygen and produce carbon dioxide. Thus the cycle is maintained and stability is achieved.

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P2: How do genes determine an individual's traits? (click here to learn how to correctly check the box) Correctly choose one: Ge
Gemiola [76]

Answer:

genes are the basic sequence of DNA that controls the traits of an organisms.

Explanation:

genes have nucleotide sequences. these sequences are involved in transmission of characters from one generation to other. if their is an error occur in this sequence the new offspring will b dissimilar from parent in this secific character which chnaged.

central dogma is the basic process through which genes are controlling the traits. first step is transcriotion through which DNA or gene is transcribed into mRNA sequence. then the second step is translation in which mRNA is translated into protein. in this way by making proteins genes control the traits or functiong of a body.

8 0
3 years ago
Foodborne illnesses can last:
Gnoma [55]

Answer:

Up to 24-48 hours

Explanation: according to the FDA

7 0
3 years ago
A person picks up a heavy suitcase in order to estimate its weight and reflexively drops it. Which receptor has initiated this r
Nuetrik [128]

Answer:

The answer is option C.

Explanation:

The question is not complete, here is the complete question:

A person picks up a heavy suitcase in order to estimate its weight and reflexively drops it. Which of the following receptors has initiated this reflex?

A) Free Nerve Ending

B) Lamellae Corpuscle

C) Tendon Organ

D) Bulbous Corpuscle

The answer is option C, the tendon organ. Tendon organ, located in the skeletal muscles, takes on the role of sensing the tension in the muscle so that it can be adjusted appropriately. In this case, the weight of the suitcase was not estimated correctly so the tension of the skeletal muscle was not enough to hold the suitcase.

I hope this answer helps.

8 0
3 years ago
Read 2 more answers
Chlorophyll is the primary pigment in plant chloroplasts. It absorbs all wavelengths of light, EXCEPT ____________.
photoshop1234 [79]
Green. It reflects it, that's why se see plants as green
4 0
4 years ago
In _____________ selection, individuals with both extreme forms of a trait are at a selective advantage.
jok3333 [9.3K]

Answer:

disruptive/diversifying selection  

Explanation:

Disruptive (also known as diversifying) selection is a type of natural selection where extreme phenotypic values are more favored rather than intermediate phenotypes. The disruptive selection favors the survivance and reproduction of organisms with extreme phenotypic traits, and in turn impairs the reproduction of organisms with intermediate traits, thereby changing the allele frequencies in the population in order to favor extreme values. An example of disruptive selection is the beak size of Galapagos finches, where extreme phenotypes of this trait have shown to be adaptive according to the type of food found in each island.

5 0
3 years ago
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