B1- Adaptation for Survival Flashcards
Why are Arctic foxes white in the winter?
So they are camouflaged against the snow and ice and they prey find it more difficult to see them.
State three possible ways a plant might conserve water.
Smaller leaves,water storage tissue, e.g.swollen stem and stomata situated away from light and wind.
Why do warning colors prevent some animals being eaten
The color signals that they are poisonous or have a awful taste. Once the animal eats it they won’t try again!
Why do some animals move north during the summertime and return south in the winter?
The climate further south gets warm in the summer. It is cold for them in the norther climate
Why do some woodland plants grow and flower early in the year?
So that they are able to use the sunlight to photosynthesis and grow. Once the trees have there the smaller will receive much less sunlight. They will also have more competition for water and nutrients from the soil as the trees begins to grow
State three thing that plant compete for.
Light, water and nutrients
Name an instrument which can record environmental can get over a few weeks.
A data logger - a computer attached to sensors
What is the advantage for some predators to be camouflaged?
So their prey find them more difficult too see. This means that the predator can get closer to its prey before attacking. This makes them more successful at obtaining food.
An elephant has a small surface area to volume ratio. How will this affect the elephant in hot climates?
It will transfer energy slowly. This is why elephants have a folded skin which increases the total surface area and its large ears will also transfer energy effectively
A farmer plants some seeds in roes 10cm apart. The plants grow well. He wonders if he should plant them closer next year. Explain why this might not produce better yield?
When the plants are grown closer together there is more competition for light, water and nutrients. This means that individual plants may not grow as well and the overall yield is same or lower.
Suggest why some animals in a desert spend all day in a burrow and come out at night.
To keep/ stay out of the sun and to feed. They are also less easily seen by a predator
Why is it difficult to interpret data about changes in the distribution of animals and plants?
There are so many possible variables. It may be obvious that the climate has got warmer but this may lead to other changes. For example, if a plant flower earlier in the year the insects which feed on it may not be around to pollinate the flowers. This could lead to a fall in the number of plants and also in the number of insects which would not be able to feed on the nectar
