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Shtirlitz [24]
3 years ago
5

Cardiovascular fitness uses which of the following body systems?

Biology
2 answers:
Dmitry [639]3 years ago
7 0

Answer:

Explanation:Urinary → kidneys

Integumentary → skin, sweat, glands

Respiratory → lungs

Digestive → intestines

Circulatory → Blood that circulates through the body passes through one of the two kidneys where it is filtered!

So your answer is : ( D )

There you go! ☻

Karolina [17]3 years ago
5 0
B, circulatory and respiratory 
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Describe the connection between limiting factors and invasive spicies
Alina [70]
Some examples of limiting factors are biotic, like food, and mates. Limiting factors can affect the populations of both plant and animal species. An invasive species is an organism that is not indigenous, or native, to a particular area.
8 0
3 years ago
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Miller's classic experiment demonstrated that a discharge of sparks through a mixture of gases could result in the formation of
beks73 [17]

Answer:

The correct answer will be-gas absent in primordial atmosphere (oxygen).

Explanation:

The Miller experiment was performed in 1953 to show that organic molecules can be formed from the inorganic molecules in the conditions resembling the primordial atmosphere.

Same conditions were created to the unstable atmosphere like a mixture of gases which included- methane, sulfur dioxide and hydrogen but lacked oxygen as it was absent in the primordial atmosphere.

Thus, gas absent in the primordial atmosphere (oxygen) is the correct answer.

6 0
3 years ago
You are examining the phylogenic relationship of a newly discovered plant species (Species 2). You amplify the RUBISCO barcode a
frozen [14]

Answer:

a. Inversion

b. Duplication

Explanation:

Inversion has the name suggest, has to do with a segment of DNA being reversed from end to end.

In this case here,

Inversion is taking place here.

species 1 ATGCAAATTTGGGCCCATGAATGGTTGCAA

species 2 ATGCAAAAATTTTGGTACGCCGAATGGTTGCAA

Therefore, the sequences in bold in species 1 are observed to be reversed end to end in species 2.

Deletion ❌❌

I am sure it's not feasible because deletion entails removal of a few sequences.

It can be seen that species 2 is longer than species 1, which gives another reason why deletion is not feasible too, as no sequences are seen to be deleted.

I believe duplication is feasible since AATT sequences are repeated once.

Our final answer,

inversion and duplication occur here.

4 0
3 years ago
Is medroprogesteroneacetate a progestin?
Effectus [21]
Indeed, It is a progestin
7 0
4 years ago
What type of government did egypt and the indian valley civilization have? How was power passed through generations?
ArbitrLikvidat [17]

Answer: Mesopotamia, china, indus River Valley, the mesoamerican empires..... in this case, the two rivers are the tigris and Euphrates. Mesopotamia. The name Mesopotamia was given to the middle eastern civilizations that existed between the Euphrates and Tigris Rivers.   :)

5 0
3 years ago
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