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How are the spiny needles on cactus an adaptation to desert conditions?
The needles provide protection from animals that feed on cacti. They also provide shade in some species with dense coverings of spines. The needles were originally leaves that evolved over years to needles. Leaves lose much more water to the atmosphere that the spines do. Cactus spines also act as condensation collectors, especially in arid regions with daily fogs like the coastal strip of the Atacama Desert in South America. In addition to watering the cactus, the water dripping off the spines is an important source of moisture for local wildlife. Some cactus spines even provide a means of propagation by clinging to passersby and causing a segment of the cactus stem to detach from the parent plant, which it does quite easily, and travel with the host animal to wherever the animal dislodges it and the stem can now grow again in a new spot.Easy to answer. Some animals want the water from the cactus, but they can't because of the needles
Do thunderstorms lose strength as they pass over land?
No. Hurricanes lose strength when they move over land. Thunderstorms can easily form and become very strong over both land and water.
Animals lose water when they what?
drink, pnt, and pee.
Do all hydrates lose water?
Yes, all hydrates lose water after heating.
When non metals are most active they can do what?
easily gain electrons
What is the primary role of the needles of a scrub pine tree?
The "needles" on a pine tree or other conifer are the plant's leaves, where photosynthesis takes place. The needles are long and slender because of the environment of the trees. Needles lose less water and heat than typical leaves.
Why do trees have needle like leaves?
Deciduous trees are trees that lose their leaves. Trees that don't lose their leaves are "Evergreens". Evergreen trees have needles, instead of flat leaves, to survive winter hardship. Needles cut evaporation so trees can save water - dear in the winter. Not all trees that bear needles are evergreen, for example the larch drops it's needles in the Autumn.
Why do conifers have leaves like needle?
Deciduous trees are trees that lose their leaves. Trees that don't lose their leaves are "Evergreens". Evergreen trees have needles, instead of flat leaves, to survive winter hardship. Needles cut evaporation so trees can save water - dear in the winter. Not all trees that bear needles are evergreen, for example the larch drops it's needles in the Autumn.
What is the name of trees that do not lose its needles?
evergreen?
How pine needles help pine tree conserve water?
Trees lose water through transpiration (the passing of water vapor to the atmosphere). Pine needles are waxy, have a small surface area and have a groove in which the stomata are located. These features reduce transpiration.
Why do coniferous forests not lose their needles?
Coniferous trees do not lose their needles because they are called "evergreen" trees which means the tree stays green for ever!
Why do you need to store sewing needles?
If you don't you may lose them.
Why do camels have concentrated wee?
So they don't dehydrate/lose water as easily in deserts and die.
Do pine trees lose their leaves in winter?
No, pine trees do not have leaves. They have pine needles that have a waxy coat on them. People refer to them as pine leaves sometimes, but that isn't what they are.
Why do you lose weight easily?
If you mean when you first start its because you lose water weight. Also if youre very heavy you'll lose more weight then only a slight overweight person.
What adaptations allow conifers to live in dry habitats?
They do not have leaves like decidous trees, therefore they lose less water via surface area.Conifers also have a waxy coating on there needles which helps prevent water loss.
Why don't pine trees lose their needles in the fall and regrow them in the spring?
Pine trees are considered an evergreen. They shed needles like other trees lose their leaves, but never all of them and only after the second growing year. Hence the name evergreen.
