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gladu [14]
2 years ago
9

A heart cell was taken from a rat and placed in Flask A, which contained a nutrient-rich culture medium. A kidney cell was taken

from the same rat and placed in Flask B, which contained the same nutrient-rich culture medium. Twenty-four hours later both flasks were dense with cells, indicating cellular division had occurred. The flasks were analyzed to determine what types of cells were present. Which of the following best explains why all the cells in Flask A were heart cells and all the cells in Flask B were kidney cells? Information dictating cell type is passed from a parent cell to offspring during mitosis.
No crossing-over or mutations occurred during cell division.
The parent cell secreted enzymatic signals that stimulated the offspring to develop into the same cell type.
The parent cells must have been homozygous for genes encoding cell type
Biology
1 answer:
BabaBlast [244]2 years ago
6 0
A heart cell taken from a rat and placed in Flask A with a nutrient-rich culture medium  produced heart cells after 24 hours.

A kidney cell taken from the same rate placed in Flask B with a similar nutrient-rich culture medium produced kidney cells after 24 hours.

The best explanation is:
INFORMATION DICTATING CELL TYPE IS PASSED FROM PARENT CELL TO OFFSPRING DURING MITOSIS.
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Answer:

A. It contains fewer volatile gases.

Explanation:

Mafic lava have a composition of about 45-55% silica with high amount of Fe, Mg, Ca.

The silica content is quite low compared to those of granitic magma whose silica content can reach up to about 60%.

What determines the viscosity of magma is basically the silica content of the magma and the temperature of the magma. Viscosity is the resistance to flow.

The higher the silica content, the lower the viscosity and the higher the amount of volatile gases. Such type of magma is the granitic magma. Granitic magma due to their viscosity flows slowly.

The lower the silica content, the higher the viscosity and the lesser the presence of volatile gases in them. Such an example is Mafic magma. Mafic magma flows very slowly with low amount of dissolved gases.

8 0
2 years ago
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A farmer is being troubled by coyotes eating his sheep. in an attempt to solve the problem, he kills a sheep and laces its body
Rom4ik [11]
The correct answer is "conditioned taste aversions".

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7 0
2 years ago
3) The dimensions of your living room are 13 ft. by 16 ft. How many square meters of carpet
mixas84 [53]

Answer:

19.32 m²

Explanation:

The area of a living room is the product of its length and breadth. The area is given by:

Area = length × breadth

1 meter = 3.28 feet. Hence:

Length = 16 ft

16 ft = 16\ ft*\frac{1\ m}{3.28\ ft} =4.88\ m

Breadth = 13 ft

13 ft = 13\ ft*\frac{1\ m}{3.28\ ft} =3.96\ m

Area = length × breadth = 4.88 m × 3.96 m = 19.32 m²

Hence 19.32 m² of carpet is needed for the living room

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2 years ago
Compared to the outside surface, the inside of a resting cell membrane is
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Independent of the conditions of the outside of the cell
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Answer:

C. Document the number of honey-making bees per hive.

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