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valentinak56 [21]
3 years ago
11

Minerals in sediment may seep into the ______________ and replace the body’s material with minerals that harden over time.

Biology
1 answer:
Rus_ich [418]3 years ago
3 0

Answer:

erm

Explanation:

digestive system.

no idea

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A(n) _______ is a non-cellular particle made up of genetic material and protein that can invade living cells.
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4 years ago
A strain of Drosophila known as dunce produces one-half the amount of cAMP phosphodiesterase found in wild-type flies, which cau
erma4kov [3.2K]

Answer:

From the given observations we can say that there are 2 genes that are responsible for normal learning. It is also given that the dunce and rutabaga mutations are the mutations of 2 different genes.

Due to complementation which is a phenomenon of restoration of normal phenotype if mutants are crossed, it is found that the flies have normal learning behavior if both mutants are crossed.

Let's assume that the Drosophila having this learning effect and it is due to genes D and R where D is the normal gene and dd is the case of mutation that results in duncy phenotype. Similarly, Gene R is responsible for normal learning, and rr results in rutabaga phenotype.

Cross between ddRR (duncy) x DDrr (rutabaga)

Gametes - dR x Dr

F1 progeny - DdRr    

Thus, in heterozygous cases, a single copy of both wild-type alleles D and R complement each other.

7 0
3 years ago
What specializations are common in the digestive tract of higher organisms such as humans?
luda_lava [24]

 One is the presence of villi and microvilli in the small intestines that increase the surface area for which food is absorbed. Second is the presence of goblet cells that secrete mucus to prevent self-digestion of the tract lining. Another is the specialized enzymes in different regions of the digestive tract that specialize in digesting particular foods.






5 0
3 years ago
What is an indirect measure of the amount of energy released from food?​ a. ​The increase in heat given off when the food is bur
lana [24]

Answer:

e. ​Quantity of oxygen consumed when the food is burned

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The quantity of oxygen that's used up is known as an indirect measure for amount of energy that's released from the food you burn and Bomb calorimeters may be used to estimate the amount of energy in food.

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PLEASE HELP HURRY
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Yup. It expels the carbon dioxide. Also please brainliest
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