Does Rafflesia have stem?

Rafflesia, native to Indonesian rainforests, is a parasite plant which produces the largest single flower that stinks. With no leaves, stem or roots, it lacks chlorophyll to aid photosynthesis. It attaches itself to a wine called Tetrastigma from which it absorbs water and nutrients.

The only part of the plant that can be seen outside the host vine is the five-petalled flower. In some species, such as Rafflesia arnoldii, the flower may be over 100 centimetres (40 in) in diameter, and weigh up to 10 kilograms (22 lb). A Rafflesia that flowered in West Sumatra in 2019 was measured to be almost 4 feet (120 cm) in diameter, the largest flower ever recorded – 4 inches (10 cm) wider than the flower reported as the largest in 2017. Even one of the smallest species, R. baletei, has 12 cm (5 in) diameter flowers.

The flowers look and smell like rotting flesh. The foul odour attracts insects such as carrion flies, which transport pollen from male to female flowers. Most species have separate male and female flowers, but a few have hermaphroditic flowers. Little is known about seed dispersal. Tree shrews and other forest mammals eat the fruits.[8] The extremely tiny seeds have an extremely tiny elaiosomes, and are thus most likely dispersed by ants. The seeds are packed into berries, which contains hundreds of thousands of seeds.

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How will a farmer know that the peanuts are ready for harvest?

When the leaves of the plants turn yellow, they are pulled out of the ground. When the plant has matured and the peanuts are ready for harvest, the farmer waits until the soil is not too wet or too dry before digging. When conditions are right, he or she drives a digger up and down the green rows of peanut plants. The digger pulls up the plant, gently shakes off any lingering soil, rotates the plant and lays it back down in a “windrow”—with peanuts up and leaves down.

Peanuts contain 25 to 50 percent moisture when first dug and are dried to 10 percent or less so they can be stored. They are usually left in windrows for two or three days to cure, or dry, before the next step.

After drying in the field, a combine separates the peanuts from the vines, placing the peanuts into a hopper on the top of the machine and depositing the vines back in the field. Peanut vines can be left in the field to nourish the soil or be used as nutritious livestock feed. Freshly combined peanuts are then placed into peanut wagons for further curing with forced warm air circulating through the wagon.

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What is rewilding?

You might have heard your grandparents lament about how the greenery in your town has been replaced by buildings. They might have even shared their concern over rising pollution and missing birds and insects in the neighbourhood. The environment they grew up in has disappeared and what we are left with is just a concrete jungle.

Human settlements and urbanization have rapidly transformed the planet in the last few decades. The activities have greatly deteriorated the environment and wildlife. Climate change, global warming, habitat loss and pollution have pushed many species of plants and animals to the brink of extinction. And scientists and conservationists are now advocating several restoration efforts, chief among them being rewilding.

Rewilding is the reintroduction of locally extinct plants and animals to a landscape where they have the potential to restore ecosystems. It is a potential to restore ecosystems. It is a progressive approach to conservation – it’s about letting Nature take care of itself, by enabling natural processes repair damaged ecosystems and restore degraded landscapes.

Two types of rewilding

Passive rewilding focuses on reducing human intervention in the ecosystem and letting Nature recover and flourish on its own. It involves giving cultivated land back to Nature.

Translocation rewilding involves reintroduction of species. It is the deliberate release of a species from captivity or other areas into the wild, where the organism is capable of survival. Also called trophic rewilding, it focuses on re-establishing large-bodied animals or megafauna. Trophic rewilding aids in the restoration of balance in the entire ecosystem.

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Why is a bunch of bananas called a hand?

A single banana is called a finger. A group of attached “fingers” make up a “hand” of bananas. Multiple hands that grow in a cluster are called a bunch or stalk – a bunch of bananas may contain 3 to 20 hands! A banana plant is actually a giant herbaceous flowering plant. The long, stout structure that holds the leaves and fruit is called a pseudostem (false stem).

The Zoo grows 24 different types of bananas. While we get some fruit off of them, we mostly grow them for the stalks and leaves, which we give to our primates and elephants to enjoy. Sometimes that means munching them, other times it means wearing one of the big leaves on their head!

About 14 days after the stem has emerged, the weight of the growing bananas causes the stem to hang upside down. At this stage, many farmers cover the fruit with a bag to help protect it from insects and sun damage. Farmers also support the plant by tying it to neighboring plants with twine. This helps prevent the plant from toppling over from the weight of the bananas.

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What are the Moon Trees?

Moon trees are trees grown from 500 seeds taken into orbit around the Moon on the Apollo 14 mission in 1971. After the flight the seeds were sent to the southern Forest Service station in Gulfport, Mississippi, and to the western station in Placerville, California, with the intent to germinate them. Nearly all the seeds germinated successfully, and the Forest Service had some 420 seedlings after a few years. Some of these were planted alongside their Earth-bound counterparts, which were specifically set aside as controls. After over forty years there is no discernible difference between the two classes of trees. Most of the "Moon trees" were given away in 1975 and 1976 to many state forestry organizations, in order to be planted as part of the nation's bicentennial celebration. Since the trees were all of southern or western species, not all states received trees. A Loblolly Pine was planted at the White House, and trees were planted in Brazil, Switzerland, and presented to Emperor Hirohito, among others.

Second-generation trees, grown from Moon Tree seeds, are sometimes known as Half-Moon Trees and are also growing around the world. One such Half-Moon Tree calls NASA’s Marshall Space Flight Center in Huntsville, Alabama, its home as it stands outside a building that played a key role in development of the Saturn V rocket that launched the Apollo 14 mission.

As NASA and its international, industrial, and academic partners prepare to return humans to the Moon as part of the Artemis program, understanding the effects of deep space on plant growth is critical – a foundation the Apollo 14 mission help lay. Astronauts on the Moon and Mars will be too far from Earth for regular resupply missions carrying fresh food, so they must be able to grow their own.

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