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ella [17]
3 years ago
7

Which statement is true for some photosynthesizing animals?

Biology
2 answers:
telo118 [61]3 years ago
6 0
The correct option is A.
Scientists had discovered that some animals, such as Elysia chlorotica has the capacity to photosynthesize. The animal usually incorporate chloroplast into its cell from the algae which it feeds on. The chloroplast enable it to make proteins which are essential for photosynthesis.
Aneli [31]3 years ago
3 0

The right answer is A. Some carry out photosynthesis...

The sea slug, Elysia chlorotica, is the first discovered animal able to use photosynthesis to produce energy. This photosynthesis is performed by the chloroplasts of its main food source, the seaweed Vaucheria litorea. They are sequestered by the digestive epithelium of the slug for several months according to a phenomenon of kleptoplasty, continuing their function of carrying out photosynthesis.  

However, the chloroplasts of Vaucheria litorea have transferred a large part of their genes required for photosynthesis to the nucleus of the cells of this alga during evolution. Photosynthesis is nevertheless maintained in the sea slug thanks to the transfer of a gene necessary for photosynthesis from the kernel of the seaweed to the genotype of the slug.

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While hiking, you must push aside thick branches that are near your face. One of them rips the skin on your arm and you begin to bleed from the cut. Which of the following plays an important role in initially protecting you from infection?

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Explanation:

Hiking which is a way to stay physically active can simply be explained as an engage in a leisure-like activity, to walk a long distance or for exercise.

Innate immunity is one of the two main immunity strategies found in vertebrates, is composed of physical, chemical and cellular defenses against pathogens,  such as skin, chemicals in the blood, and immune system cells that attack foreign cells in the body immediately or within hours of an antigen's appearance in the body.

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Innate immunity, is something already present in the body which is activated against a specific type of antigen, and the immunity remains throughout the life.

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Therefore, during the first critical hours and days of exposure to a new pathogen, the body rely on the innate immune system to protect it from infection.

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