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Sonja [21]
3 years ago
14

Which of the following creates variation within a population?

Biology
2 answers:
Lemur [1.5K]3 years ago
7 0
A hope this helps :)
marishachu [46]3 years ago
6 0
The answer is going to be A
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Why is the entire cell said to be like factory
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A cell can be thought of as a "factory," with different departments each performing specialized tasks.

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Passive immunotherapy is used when:________.A. the attenuated live vaccine is too difficult to produce B. the pathogen does not
uysha [10]

Answer: D. protection against a recent infection or disease is needed immediately

Explanation:

Passive immunisation is used when there is a high risk of infection and there is insufficient time for the body to build its own immune response or to mitigate the effects of active or immunosuppressive diseases.

Passive immunisation may be offered when people are unable to synthesise antibodies and when they have been exposed to a disease to which they have no protection. example of passive immunotherapy include monoclonal antibodies (MABs) or magic bullets which targets cancerous cells.

Hence, the correct option is D.

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6 0
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Why is photosynthesis an example of a chemical reaction, and why is it classified as endothermic? (2 points)
Elan Coil [88]

Photosynthesis is an example of a chemical reaction <u>because it is a process in which carbon dioxide and water are combined to form glucose and oxygen.</u> It is an endothermic reaction because <u>it requires solar energy. </u>

<u> </u>

Further explanation:

Photosynthesis is the process by which green plants and some organisms convert solar energy into chemical energy. This <u>process takes place in the chloroplast</u> of the cell. Chlorophyll is the green pigment found in the chloroplast that helps in the absorption of sunlight. The plants use this <u>light energy to transformed carbon dioxide and water into glucose and oxygen.</u> This process is known as an endothermic chemical reaction.

The tiny pores present on the surface of green leaves help in the exchange of gaseous such as carbon dioxide enters the plant for the process and oxygen is removed from the plant after the process is completed. These tiny pores are called stomata. Glucose is the end product of photosynthesis which is utilized by the plant as a source of energy. It helps in the growth and development of the plant. The remaining sugar molecules are combined to form a complex substance called carbohydrate.

<u>The complete process occurs in two steps: light-dependent reaction and light-independent reaction</u>. The light-dependent reaction occurs in the thylakoid membrane in the presence of solar energy. The light-independent occurs in the absence of solar light or usually in the dark. It occurs in the stroma of the cell. It is a carbon fixing reaction in which sugar molecule is produced.

Learn More:

1. Learn more about meiosis <u>brainly.com/question/1600165 </u>

2. Learn more about the process of molecular diffusion in a cell <u>brainly.com/question/1600165 </u>

3. Learn more about human sperm and egg cell <u>brainly.com/question/1626319 </u>

<u> </u>

Answer Details:

Grade: High School

Subjects: Biology

Topic: Photosynthesis

Keywords:

Photosynthesis, endothermic, organism, chemical, chloroplast, absorption, carbon dioxide, stomata, glucose, carbohydrate, thylakoid, stroma.

3 0
4 years ago
Read 2 more answers
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