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VikaD [51]
3 years ago
11

What type of system represents the cycling of energy on the earth?

Biology
2 answers:
Inga [223]3 years ago
8 0
B. is your correct answer.
defon3 years ago
8 0

B. open system is the correct answer for (apex)

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Neurons that carry impulses from the eyes to the spinal cord and brain are called
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The answer is Sensory Neurons
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During the Devonian period of Gondwanaland what were the two organisms that thrived?
gulaghasi [49]

Answer:

about the Trilobites is =Trilobites ( /ˈtraɪləˌbaɪt, ˈtrɪ-, -loʊ-/;[4][5] meaning "three lobes") are a group of extinct marine artiopodan arthropods that form the class Trilobita. Trilobites form one of the earliest-known groups of arthropods. The first appearance of trilobites in the fossil record defines the base of the Atdabanian stage of the Early Cambrian period (521 million years ago), and they flourished throughout the lower Paleozoic before slipping into a long decline, when, during the Devonian, all trilobite orders except the Proetida died out. The last extant trilobites finally disappeared in the mass extinction at the end of the Permian about 252 million years ago. Trilobites were among the most successful of all early animals, existing in oceans for almost 300 million years.[6] . and about the algae is =Algae (/ˈældʒi, ˈælɡi/; singular alga /ˈælɡə/) is an informal term for a large and diverse group of photosynthetic eukaryotic organisms. It is a polyphyletic grouping that includes species from multiple distinct clades. Included organisms range from unicellular microalgae, such as Chlorella and the diatoms, to multicellular forms, such as the giant kelp, a large brown alga which may grow up to 50 metres (160 ft) in length. Most are aquatic and autotrophic and lack many of the distinct cell and tissue types, such as stomata, xylem and phloem, which are found in land plants. The largest and most complex marine algae are called seaweeds, while the most complex freshwater forms are the Charophyta, a division of green algae which includes, for example, Spirogyra and stoneworts.

Explanation:

5 0
3 years ago
What is the difference between DNA and RNA?
Jlenok [28]

Answer:

DNA contains thymine, and RNA contains uracil.

7 0
3 years ago
Which of the following explains why children must be vaccinated for communicable diseases, like measles?
maksim [4K]
<span>B)The immunity they receive in the womb from their mother is temporary.

I believe this as the mother passes antibodies to the child through the last three months of pregnancy, and this is a passive immunity </span>
7 0
4 years ago
Read 2 more answers
HELPPPPPPPPPPPPPPPPPP
mel-nik [20]

Answer:

D, Isosceles and right

Explanation:

you already know it's right bc of the little 90 degrees box so the only two right answers could be A and D but its not A bc all the sides aren't the same length so its D. Hope this helped! :)

4 0
3 years ago
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