Question

3 multiple choice 20 points which of the following is the best example of a specific adaptation that helps an organism survive a severe drought? (dok 2) a plants phototropism, causing it to grow toward sunlight. a birds ability to fly, which helps them evade predators. a cheetahs long legs, which allow it to run quickly. a deciduous tree losing its leaves, which reduces the rate of photosynthesis. 4 multiple choice 20 points limiting the production of greenhouse gases is critical because these gases primarily impact the planet by: (dok 2) directly building up the ozone layer in the stratosphere. absorbing and re - radiating heat back toward the earths surface. chemically neutralizing the essential gases needed for photosynthesis. increasing the earths orbit, causing a general cooling trend.

Explanation:

• Question 3:
• Phototropism (A) is about light, not drought.
• Bird's flight (B) is for predator evasion, not drought.
• Cheetah's legs (C) are for speed, not drought.
• A deciduous tree losing leaves reduces water loss (via reduced photosynthesis - less stomatal activity), which helps in drought.
• Question 4:
• Greenhouse gases do not build up the ozone layer (A).
• They absorb and re - radiate heat back to Earth (B), which is the greenhouse effect.
• They do not chemically neutralize gases for photosynthesis (C).
• They do not affect Earth's orbit (D).

Answer:

1. D. A deciduous tree losing its leaves, which reduces the rate of photosynthesis.
2. B. Absorbing and re - radiating heat back toward the Earth’s surface.