When a long-term environmental change occurs, certain individuals in a population will be better adapted for the new environment than others. These individuals will be more likely to survive and pass on their traits to their offspring. Over many generations, these favorable adaptations build up in a population. This may lead to speciation, which is the development of a new species.
like climate change, can permanently alter an ecosystem, but over time the change may cause some
[Genetic variations] to become more favorable or less favorable in the new environment. If adaptations to the new environment are not present or do not develop, populations can become [extinct.]
Answer: the crab will evolve to have more powerful claws.
Explanation: Evolution is the change in the characteristics and features of a species over generation which develops due to natural selection and adaptation within the course of time. The predator is an organism which kills other organism to obtain it as food. The prey is an organism which is killed by the other organism.
According to the given situation, if the prey develops special adaptations to prevent itself from the predator. The predator will also be evolved so as to obtain prey as food. Therefore, the crab will evolve to have more powerful claws is the correct option.
D (characteristics of living things)
All things in existence are made up of matter, which can either be living or non-living depending on whether or not they have LIFE in them. This means that the possession of life distinguishes a living thing from a non-living thing. This life that living things possesses makes them able to perform certain functions called their characteristics.
Based on these, the characteristics of living things have been summarized into an acronym called MR NIGER D with each letter meaning a particular characteristic.
M- Movement (ability to move)
R- Reproduction (ability to produce young ones)
N- Nutrition (ability to absorb nutrients)
I- Irritability (ability to respond to stimulus in the environment)
G- Growth (ability to increase in size, weight and height)
E- Excretion (ability to pass out waste products from the body)
R- Respiration (ability to obtain energy)
D- Death (ability to die)
Looking at all these characteristics, they are possessed by insects, plants, animals, humans etc. Hence, they are all grouped as living things.
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