Answer:
the answer is A
Explanation:
animal cells do not have cell walls or chloroplasts.
Answer:
Sporozoa-flexing the pellicle
Explanation:
Sporozoa do not have flagella, cilia, or pseudopodia and they show gliding movement, amoeboids show movement by pseudopodia, ciliates by cilia and zooflagellates show by flagella, the pellicle is shown by paramecium.
So, the correct option is 'Sporozoa-flexing the pellicle'.
When a candle burns, energy is released in the form of light and heat.
Candles are used to provide light because when they burn, the energy which is released takes the form of light. Similarly, because fire is involved in the process, heat is given off as well.
<h3><u>Answer;</u></h3>
Gene therapy to correct defective genes that cause diseases.
<h3><u>Explanation</u>;</h3>
- Gene therapy refers to the procedure that involves the introduction of nucleic acids (DNA or RNA) into the cells of an organism for the purpose of correcting abnormalities, such as a mutations or in other words to treat a genetic disease.
- Gene therapy entails bringing a normal and functional gene known as a trans-gene into a cell with altered gene. Another method can bring RNA capable of partially regulating or blocking the expression of an altered gene.
- The nucleic acids are introduced into the patient's cells by means of a viral vector or injected directly into the cells in the form of naked DNA.