Which of these structural adaptations would most help a nocturnal animal living in the forest?
A.smaller eyes
B.longer hind legs
C.darker fur
D.wings
C?
Which of these changes would most help a plant living in a desert?
A.more leaves
B.more roots
C.smaller stem
D.smaller flowers
B?
Which adaptation will help a crocodile most to stalk an antelope in a river as it drinks?
A.long snout
B.eyes on top of the head
C.four legs
D.tough skin
A?
Which behavioral adaptation helps protect many herbivorous mammals from predators?
A.moving in herds
B.eating plants
C.fighting one another
D.sleeping on the ground
A?
One of the diamondback rattlesnakes' niches is to
A.bite humans
B.help control rodent population
C.eat berries
D.frighten predators with its rattle
B?
To determine the correct answer to each question, we can analyze the options and understand the specific adaptations that would support the given scenario:
1. For a nocturnal animal living in the forest, the most helpful structural adaptation would be darker fur. This is because darker fur would provide camouflage in the dimly lit forest environment, allowing the animal to blend in with the shadows and vegetation. Therefore, option C is the correct answer.
2. For a plant living in a desert, the most beneficial change would be to have more roots. This adaptation allows the plant to obtain water from a larger area, increasing its chances of survival in the dry desert conditions. Thus, option B is the correct answer.
3. To stalk an antelope in a river as it drinks, a crocodile would benefit most from a long snout. A long snout enables the crocodile to approach its prey stealthily, keeping its body submerged while only the snout protrudes from the water, minimizing its visibility. Therefore, option A is the correct answer.
4. Moving in herds is a behavioral adaptation that helps protect many herbivorous mammals from predators. The collective behavior of moving together makes it difficult for predators to single out an individual from the group, providing safety in numbers. Thus, option A is the correct answer.
5. One of the diamondback rattlesnakes' niches is to help control the rodent population. Rattlesnakes prey on rodents, such as rats and mice, helping to maintain a balance in their population. Consequently, option B is the correct answer.
By understanding the specific adaptations and their benefits in each scenario, we can deduce the correct answers.