Question
Check all statements below that are true.
All organisms must compete for survival.
When organisms struggle to survive, they usually mutate to increase chances of reproduction.
Some organisms have phenotypes that make them better competitors than others in their environment.
Animals undergo natural selection, but plants and other organisms generally do not.
Natural selection continues to occur even today.
Phenotypes found in the most successful members of a species become the most prevalent after several generations.
A decrease in food availability will increase the variation in a population.
All organisms must compete for survival.
When organisms struggle to survive, they usually mutate to increase chances of reproduction.
Some organisms have phenotypes that make them better competitors than others in their environment.
Animals undergo natural selection, but plants and other organisms generally do not.
Natural selection continues to occur even today.
Phenotypes found in the most successful members of a species become the most prevalent after several generations.
A decrease in food availability will increase the variation in a population.
Answers
GPT-4o mini
Let's evaluate each statement:
1. **All organisms must compete for survival.**
- **False.** While many organisms do compete for resources, not all organisms face competition in the same way. Some may coexist without direct competition depending on their ecological niche.
2. **When organisms struggle to survive, they usually mutate to increase chances of reproduction.**
- **False.** Mutations occur randomly and do not happen in response to environmental pressures. Natural selection acts on existing variations.
3. **Some organisms have phenotypes that make them better competitors than others in their environment.**
- **True.** Phenotypic variations can give some individuals advantages in survival and reproduction based on their environment.
4. **Animals undergo natural selection, but plants and other organisms generally do not.**
- **False.** All organisms, including animals, plants, and microorganisms, undergo natural selection.
5. **Natural selection continues to occur even today.**
- **True.** Natural selection is an ongoing process that occurs continuously in all living organisms.
6. **Phenotypes found in the most successful members of a species become the most prevalent after several generations.**
- **True.** Natural selection tends to favor phenotypes that are advantageous, making them more common in subsequent generations.
7. **A decrease in food availability will increase the variation in a population.**
- **False.** A decrease in food availability typically leads to increased competition and may reduce the overall population size, which can lead to a reduction in genetic variation.
**True statements:**
- Some organisms have phenotypes that make them better competitors than others in their environment.
- Natural selection continues to occur even today.
- Phenotypes found in the most successful members of a species become the most prevalent after several generations.
1. **All organisms must compete for survival.**
- **False.** While many organisms do compete for resources, not all organisms face competition in the same way. Some may coexist without direct competition depending on their ecological niche.
2. **When organisms struggle to survive, they usually mutate to increase chances of reproduction.**
- **False.** Mutations occur randomly and do not happen in response to environmental pressures. Natural selection acts on existing variations.
3. **Some organisms have phenotypes that make them better competitors than others in their environment.**
- **True.** Phenotypic variations can give some individuals advantages in survival and reproduction based on their environment.
4. **Animals undergo natural selection, but plants and other organisms generally do not.**
- **False.** All organisms, including animals, plants, and microorganisms, undergo natural selection.
5. **Natural selection continues to occur even today.**
- **True.** Natural selection is an ongoing process that occurs continuously in all living organisms.
6. **Phenotypes found in the most successful members of a species become the most prevalent after several generations.**
- **True.** Natural selection tends to favor phenotypes that are advantageous, making them more common in subsequent generations.
7. **A decrease in food availability will increase the variation in a population.**
- **False.** A decrease in food availability typically leads to increased competition and may reduce the overall population size, which can lead to a reduction in genetic variation.
**True statements:**
- Some organisms have phenotypes that make them better competitors than others in their environment.
- Natural selection continues to occur even today.
- Phenotypes found in the most successful members of a species become the most prevalent after several generations.