How would reducing low-growing plants from an area impact a population of tortoises with two varieties of neck extension ability: short and long distance?(1 point)
Responses
The variety of tortoises with the ability to extend their necks a long distance would go extinct.
The variety of tortoises with the ability to extend their necks a long distance would go extinct.
The proportion of tortoises with the ability to extend their necks a long distance would increase.
The proportion of tortoises with the ability to extend their necks a long distance would increase.
The proportion of tortoises that could only extend their necks a short distance would increase.
The proportion of tortoises that could only extend their necks a short distance would increase.
The variety of tortoises that could only extend their necks a short distance would go extinct.
The variety of tortoises that could only extend their necks a short distance would go extinct.
In an ecosystem, there are two color varieties within a species of toads: brown and green. Over 50 years, the proportion of the population that is green increases from 20% to 50%. Which statement is the most likely to explain this change? (1 point)
Responses
Pollution caused a decrease in the proportion of brown toads.
Pollution caused a decrease in the proportion of brown toads.
The environment changed such that green toads can blend into their surroundings better.
The environment changed such that green toads can blend into their surroundings better.
A disease caused a decrease in the proportion of brown toads.
A disease caused a decrease in the proportion of brown toads.
The environment changed such that toads that can jump higher into the trees to survive better.
The environment changed such that toads that can jump higher into the trees to survive better.