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kolbaska11 [484]
3 years ago
10

Why did i lose all my Brainly progress and points and it says that I have no questions or answers?​

Biology
1 answer:
kumpel [21]3 years ago
8 0

Answer:

did you delete it or no? because that might've happened

Explanation:

it happened to me once

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Artyom0805 [142]

Answer:

the answer is A

Explanation:

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5 0
3 years ago
according to the theory of evolution, birds feathers evolved from: a) reptiles scales b) fish fins c) gill slits d) gill arches
Ksju [112]
Reptile scales! Or, more specifically, reptiles descended from dinosaurs. 
5 0
3 years ago
(I already know number 1)
Andrej [43]
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3 years ago
Describe how phosphorus moves through the biotic and abiotic parts of an ecosystem
Daniel [21]
Phosphorus is a basic supplement for plants and creatures as particles PO43-and HPO42-. It is a piece of DNA-particles, of atoms that store vitality (ATP and ADP) and of fats of cell films. Phosphorus is likewise a building piece of specific parts of the human and creature body, for example, the bones and teeth. 




Supplements travel through the biological system in biogeochemical cycles. A biogeochemical cycle is a circuit/pathway by which a concoction component travels through the biotic and the abiotic elements of a biological community. It is comprehensive of the biotic factors, or living beings, rocks, air, water, and chemicals.
3 0
3 years ago
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Which statement correctly describes an interaction of the respiratory and
iVinArrow [24]

Answer:

A. Carbon dioxide travels from the heart to the lungs in pulmonary arteries

Explanation:

3 0
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