(Q).
Q: In order to survive and maintain what state, an organism must quickly adapt to changing environmental conditions? Read this paragraph and choose the correct option from the provided answers: In prokaryotes, a combination of activators and repressors determines whether a gene is transcribed. As you know, prokaryotic organisms are fairly simple organisms with much less DNA. Prokaryotic genes are arranged in operons , a region of DNA with a promoter, an operator , and one or more genes that encode proteins needed to perform a certain task. To maintain homeostasis (and survive), the organism must quickly adapt changing environmental conditions. The regulation of transcription plays a key role in this process. Choices: - ketosis - acclimatization - regulation - homeostasis A:
(A).
homeostasis

(Q).
Q: What reproductive part is stored in a plant's pollen? Read this paragraph and choose the correct option from the provided answers: Plants can also reproduce sexually, but their reproductive organs are different from animals' gonads. Plants that have flowers have their reproductive parts in the flower. The sperm is contained in the pollen, while the egg is contained in the ovary, deep within the flower. The sperm can reach the egg two different ways:. Choices: - the gamete - the mimic - the egg - the sperm A:
(A).
the sperm

(Q).
Q: What do bats use to determine the location of objects? Read this paragraph and choose the correct option from the provided answers: Christopher Auyeung, using bat image by User:Rugby471/Wikimedia Commons. Bats use echolocation to identify the location of objects . CC BY-NC 3.0 (bat image available under public domain). Choices: - infrared light - UV light - syncopation - echolocation A:
(A).
echolocation