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3 years ago

PLSSS HELP! What are three land-use practices that contribute to surface erosion by water?

1 answer:

4 0

Sorry that person didn’t help but your answer is

removal of vegetation, production of paper, construction production, and agricultural production

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During fetal development, cells from the blood can enter a membranous area that will become the frontal bone. These cells eventu

vesna_86 [32]

Answer:

Osteochondral Progenitor cells

Explanation:

Osteochondral Progenitor cells are cells that can form a specific type of tissue. These cells form cells that can give rise to the bone and its components, especially fibers. These Progenitor cells originate from the mesenchymal stem cells.

The cells which form the bone are known as the osteoblasts and the cell which forms the fiber is known as the chondroblasts.

Thus, Osteochondral Progenitor cells is correct.

3 0

3 years ago

Temperature regulatory apparatus of the mammal include the following pairs

Kryger [21]

The correct answer is D

3 0

3 years ago

Read 2 more answers

N/a pls help me. Asap

Alik [6]

Answer:

D) antibiotic

Explanation:

Because there’s nothing you can do about a virus other than take the vaccine, but when you get it, you need antibiotics to help your immune system fight it off.

5 0

3 years ago

What is the relationship between combustion and plants? (Using the picture)

Scorpion4ik [409]

During photosynthesis, plants use carbon dioxide and produce oxygen. During metabolism oxygen is used and carbon dioxide is a product. Humans impact the carbon cycle during the combustion of any type of fossil fuel, which may include oil, coal, or natural gas

6 0

4 years ago

1. Suppose the synthesis of an amino acid was accomplished by four enzymes encoded by four genes that formed an operon. Draw a m

vivado [14]

I have attached lac operon model having 4 genes. See attachment for better understanding.

Answer:

The Lac operon is controlled by two signals.

Initiation

Glucose and lactose concentrations control the initiation of transcription of the Lac operon through their effects on the Lac repressor protein and Cap.

Lactose absent (Repression)

When lactose is absent, the Lac repressor binds the Lac operator and shuts off expression of the operon.

Lactose present (Transcription)

Addition of lactose increases the intracellular concentration of a related compound, allolactose. allolactose binds to the Lac repressor, causing it to undergo a conformational change that releases its grip on the operator DNa.

Glucose absent (Repression)

When glucose is absent, cyclic aMp (red triangle) is produced by the cell and Cap binds to DNA.

Glucose present (Transcription)

LacZ, the first gene of the operon, encodes the enzyme b-galactosidase, which breaks down lactose to galactose and glucose.

7 0

3 years ago