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Fiesta28 [93]
3 years ago
9

What was special about the nucleus?

Biology
1 answer:
Rzqust [24]3 years ago
7 0

Answer:

D) It held DNA

Explanation:

The nucleus controls and regulates the activities in a cell. It carries the genes or structures that contain the hereditary information. (DNA)

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Nutrients are delivered and waste products are carried away from the cells of the posterior segment of the eye by blood vessels.
kolezko [41]

Answer:

The cells on the cornea are maintained by pheripheral vessels and surrounding fluids.

Explanation:

*- The capillaries of the limbus nourish the peripheral part of the cornea.

*- Tears supply of glucose in the tear film

*- Aqueous humor nourishing the outermost layers of the cornea the endothelium being a unicellular layer

6 0
3 years ago
TWO TUNWy tenis aliu ueillons.
Ulleksa [173]
1 and 3 is the answer
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Determine the nature of the expression of the lacZYA genes, represented by L, and label each genotype as constitutive, inducible
VladimirAG [237]

Answer:

Explanation:

Symbol          Representation

I-                     laci mutant cannot bind to the operator

Is                    laci mutant always bind to the operator

OC                 Operator mutant that prevent repressors binding

F’                    the wild type operator, O+, and laci gene on a plasmid

L                     lacZYA genes

I+ O+ L+   Inducible

I+ OC L+   Constitutive

I+ OC L+, F’   Constitutive

I- O+ L+, F’   Inducible

Is O+ L+    no transcription

Is O+ L+, F’   no transcription

3 0
3 years ago
Weathering and erosion contribute to the creation of landforms that contain nutrient-rich soil for plant growth. Put the followi
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Answer:

-5

-3

-1

-4

-2

Explanation:

7 0
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Why are decomposers important?
aleksklad [387]
Both A and B are correct. 
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