Which statement about the named cells is correct? (A) Palisade mesophyll cells have many chloroplasts. (B) Red blood cells have a haploid nucleus. (C) Root hair cells have many chloroplasts. (D) Sperm cells have a diploid nucleus.
▶️Answer/Explanation
Ans: A
Question
Some bacteria live in acidic, hot springs. What are the optimum conditions for the enzymes of these bacteria? (A) 20 ºC and pH4 (B) 20 ºC and pH9 (C) 80 ºC and pH4 (D) 80 ºC and pH9
▶️Answer/Explanation
Ans: C
Question
What are all living organisms made from?
(A) cells (B) eggs (C) mesophyll (D) sperm
▶️Answer/Explanation
Ans: A
Question
Which row about the nucleus of human cells is correct?