GIVING , ⓉⒽⒶⓃⓀⓈ and 1. The spores on a fern are found:

in the fruit

in the roots

under the leaves

inside the flowers

2. Fern spores usually form during:

spring

winter

summer

fall

3. Why must the plant which grows directly from the fern spore be wet?

in order to produce a seed

so that the egg can be fertilized

so that it can grow

4. Spores are formed in:

ovaries

spore cases

anthers

5. Ferns grow by:

photosynthesis

reproduction

mitosis

6. How do spores help sustain the population of ferns?

Spores do not have any natural predators.
There are million of spores that are made by a single plant to help keep its population.

Spores can hide under rocks for long time before maturing into an adult plant.

Spores can live for a long time without maturing into an adult plant.

7. Choose all the right answers.

When the leaf of a fern touches the ground, it may produce a new plant:

by planting a spore

by vegetative reproduction

by growing roots at the point of contact

by budding from its stem

1: C. They are found contained in a casing, called sporangia, and grouped into bunches, called sori, on the underside of the leaves.

2: C. The sporophyte generally releases spores in the summer. Spores must land on a suitable surface, such as a moist protected area to germinate and grow into gametophytes.

3: B:  Moisture is needed for germination, growth and fertilization and high humidity for prothalli and young developing ferns after fertilization.

4: B. In ferns, spores are contained within cases called sporangia that are located on the underside of leaves.

5: C. Each spore grows into a photosynthetic prothallus (gametophyte) via mitosis. Because mitosis maintains the number of chromosomes, each cell in the prothallus is haploid.

6: D. the reason why that's the answer is because I read a national geographic paper and it said that spores can live for over a million years without maturing into an adult plant .

7: A and B. Walking fern also has another, asexual, way of reproducing. If the long extended leaf tip touches soil, a new plantlet can form at the tip, produce roots, and become a new plant. The new plant can then grow a long leaf which touches the ground and sprouts another plantlet. In this way the colony gets larger and larger.

I hope this helped, have a great day! :)

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the nitrogen cycle provides nitrogen to the ecosystem from the atmosphere, ground and oceans. nitrogen is an important component of complex molecules such as amino acids and nucleotides, which lead to the creation of proteins and dna, the building blocks of all life. plants absorb nitrogen in the form of ammonium, nitrate ion and, on rare occasions, as amino acids. animals receive nitrogen necessary for biological processes from feeding on living or dead organic matter.