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DerKrebs [107]
4 years ago
11

Knowing that the area where fire is red is usually cooler, a scientist speculated that the color of a star is determined by its

temperature. What new experimentation could result from this hypothesis?
experimentation to classify the colors that stars can be
experimentation to determine the temperature of stars
experimentation to test the distance of stars from each other
experimentation to test the distance of stars from Earth
Biology
1 answer:
dlinn [17]4 years ago
6 0
Experimentation to determine the temperature of stars
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What conditions should completely prevent the occurrence of natural selection in a population over time?
Natali [406]

natural selection selects from among heritable differences between.

if no such differences exist, because all differences are due to the environment and  thus not heritable.

6 0
4 years ago
Which procedure is an attempt to correct a genetic disorder by replacing a mutated gene with a normal allele
bixtya [17]

Answer:

Gene Therapy

Explanation:

<u>Gene therapy</u> is an attempt to correct a genetic disorder by replacing a mutated gene with a normal allele.

Gene therapy introduces a normal copy of the gene to restore the function of the protein if a mutated gene causes a necessary protein to be faulty or missing.

Gene therapy is a process in which a new, correct version of the cystic fibrosis transmembrane conductance regulator gene would be placed into the cells in a person's body.

3 0
3 years ago
Read 2 more answers
What is the ultimate source of energy of almost any terrestrial food chain or food web?
PSYCHO15rus [73]
The ultimate source of energy (for most ecosystems) is "the sun"<span>. The ultimate fate of energy in ecosystems is for it to be lost as heat. Energy and nutrients are passed from organism to organism through the food chain as one organism eats another. Decomposers remove the last energy from the remains of organisms.

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7 0
3 years ago
A cell is placed in a solution that is hypotonic to the cell. Which of the following best describes movement of water in this si
Lera25 [3.4K]

Answer:

C. Water will flow into and out of the cell, but the overall net movement will be into the cell.

Explanation:

In a hypotonic solution, the concentration of water outside the cell is higher than inside the cell and the concentration of the solute is lower than inside the cell, therefore, water will flow in and out of the cell but the net movement of water will be from area having higher water concentration to lower concentration.

That means the net movement of water will be into the cell if a cell is placed into the hypotonic solution. Water moves in and out of a cell by the process called osmosis which is a type of diffusion.

This movement of water into the cell will swell cell and the cell can burst if it is not protected by a cell wall. Therefore the right answer is C.

8 0
3 years ago
What phase of the cell cycle comes before prophase stage of mitosis
77julia77 [94]

Hey.

Your anserw is  interphase.

Mitosis has five different stages: interphase, prophase, metaphase, anaphase and telophase. The process of cell division is only complete after cytokinesis, which takes place during anaphase and telophase. Each stage of mitosis is necessary for cell replication and division.

7 0
4 years ago
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