Answer:
The correct answer is - irregular sleep-wake type.
Explanation:
Circadian rhythm is a biological clock that keeps on moving in the background of the brain. It is moving in between the sleepiness and tiredness cycles in 24 hour period of time.
The sleep-wake cycle is another name for the circadian rhythm, The irregular sleep-wake type of circadian rhythm that breaks in a minimum of 3 periods of 24 hours. Such type of circadian rhythm may cause insomnia in the nights but the day times would be sleepy.
Thus, the correct answer is - irregular sleep-wake type.
Answer: A, C
Explanation: A is only in mitosis. C is only in meiosis.
They are eukaryotic, which means they have a nucleus.
Most have mitochondria.
They can be parasites.
They all prefer aquatic or moist environments.
Plant cell needs cell wall whereas animal cell do not because the plants need rigid structure so that they can grow up and out . All cells have cell membranes, and the membranes are flexible. So animal cells can have various shapes, but plant cells only have the shapes of their cell walls.
Answer:
Homology is similarity due to shared ancestry between a pair of organisms in different taxa. Both bats and humans have a common mammalian ancestor.
They diverged and adapted their arms for different functions.
Explanation:
Homologous features are physical features shared due to evolutionary history (a common ancestor).
