Question

question 44
1 pts
which of the following is correct about homeostasis?
homeostatic regulation rarely occurs in the few organisms that can carry out the
process.
maintaining homeostasis is important for eukaryotes but not for prokaryotes.
all living things must maintain homeostasis in order to survive.
homeostasis creates an unstable internal environment as the external environment
fluctuates.
question 45
1 pts
sexual reproduction is necessary for
production of offspring.
maintenance of genetic variability.
con nuance of a species.
diploid organisms.

Explanation:

Question 44

• Analyze each option:
• First option: Homeostasis is a fundamental process for most organisms, so "rarely occurs" is wrong.
• Second option: Prokaryotes also need homeostasis (e.g., regulating internal pH, nutrient levels), so this is incorrect.
• Third option: Homeostasis is the maintenance of a stable internal environment, which is essential for all living things to survive (e.g., temperature, pH regulation). This is correct.
• Fourth option: Homeostasis aims to create a stable internal environment despite external fluctuations, so "unstable" is wrong.

• Analyze each option:
• First option: Asexual reproduction also produces offspring (e.g., bacteria binary fission), so sexual reproduction is not necessary for just producing offspring.
• Second option: Sexual reproduction involves genetic recombination (meiosis and fertilization), which increases genetic variability. Asexual reproduction produces clones with less variability, so sexual reproduction is key for maintaining genetic variability. This is correct.
• Third option: Asexual reproduction can also ensure species continuance (e.g., many plants, bacteria), so sexual reproduction is not necessary for species continuance.
• Fourth option: Diploid organisms can reproduce asexually (e.g., some plants, animals), and haploid organisms can have sexual reproduction (e.g., some fungi), so this is incorrect.

Answer:

All living things must maintain homeostasis in order to survive.

Question 45