Endeavor Elementary - 4th Grade Science Science - Seeded & Nonseeded Plants
4th Grade Science Study Quiz - Ms Mayer's Class
Questions and Answers
- 1.
What is the job of the seed coat?
- 2.
How do humans help disperse seeds?
- A.
Bend, Stoop, Carry
- B.
Drop, Roll, Stop
- C.
Plant, Drop, Carry
Correct Answer
C. Plant, Drop, CarryExplanation
Humans help disperse seeds by planting them in the ground, allowing them to grow and spread. They also aid in seed dispersal by dropping seeds unintentionally as they move around, for example, by brushing against plants or shaking seeds off their clothing. Additionally, humans can carry seeds on their clothes, shoes, or in their belongings, inadvertently transporting them to new locations. These actions contribute to the dispersal of seeds and the expansion of plant populations.Rate this question:
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- 3.
Name six different methods of seed dispersal
Correct Answer
water
wind
people
carrier
seed explosion
hitch hikers
animal droppingsExplanation
The answer provided lists six different methods of seed dispersal: water, wind, people, carrier, seed explosion, and hitch hikers. These methods explain how seeds are spread and transported to different locations. Water can carry seeds through rivers and oceans, while wind can carry them through the air. People and carriers can unintentionally transport seeds on their clothes or belongings. Some plants have mechanisms that cause their seeds to explode, propelling them away from the parent plant. Hitch hikers refer to seeds that attach themselves to animals or other objects for transportation. Lastly, seeds can also be dispersed through animal droppings, as animals consume fruits or seeds and excrete them in different locations.Rate this question:
- 4.
What would happen if all seeds dropped under the parent plant?
- A.
None would grow
- B.
All would grow
- C.
Exactly 99% would grow
- D.
Some would grow
Correct Answer
D. Some would growExplanation
If all seeds dropped under the parent plant, it is likely that some of them would grow. This is because not all seeds require the same conditions to germinate and grow. Some seeds are able to tolerate shade and competition from the parent plant, while others may need more sunlight or space. Additionally, factors like soil quality, moisture levels, and availability of nutrients can also affect seed germination. Therefore, it is reasonable to expect that at least some of the seeds would be able to grow into plants, although the exact percentage cannot be determined without further information.Rate this question:
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- 5.
TRUE OR FALSE: Nonseeded plants reproduce (or make another one) by spores
- A.
True
- B.
False
Correct Answer
A. TrueExplanation
Nonseeded plants reproduce by spores. Spores are reproductive cells that can develop into new individuals without the need for fertilization. These plants, such as ferns and mosses, produce spores as a means of reproduction. The spores are released and can be dispersed by wind or other means, eventually growing into new plants. This method of reproduction allows nonseeded plants to colonize new areas and ensure their survival.Rate this question:
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- 6.
What elements are needed to help a seed grow?
- A.
Soil
- B.
Leaves
- C.
Time
- D.
Sun
- E.
Bananas
- F.
Space
- G.
Nutrients
- H.
Recipes
- I.
Air
- J.
Water
- K.
Temperature
Correct Answer(s)
A. Soil
B. Leaves
C. Time
D. Sun
F. Space
G. Nutrients
I. Air
J. Water
K. TemperatureExplanation
The elements needed to help a seed grow include soil, leaves, time, sun, space, nutrients, air, water, and temperature. Soil provides a medium for the seed to anchor itself and obtain nutrients. Leaves are necessary for photosynthesis, which allows the plant to produce food. Time is required for the seed to germinate and grow into a mature plant. Sunlight is essential for photosynthesis and provides energy for the plant. Space allows the plant to grow and expand its roots. Nutrients are necessary for the plant's growth and development. Air provides oxygen for respiration. Water is crucial for the seed to germinate and for the plant's overall growth. Temperature affects the rate of germination and growth of the plant.Rate this question:
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- 7.
The difference between a wet seed and a dry one is that the wet seed is more fragile.
- A.
True
- B.
False
Correct Answer
A. TrueExplanation
When a seed is wet, it absorbs water and becomes softer and more delicate. This makes it more vulnerable to damage or breakage compared to a dry seed. Therefore, the statement that a wet seed is more fragile is true.Rate this question:
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- 8.
What is the job of the cotyledon?
- A.
It divides into 2
- B.
It divides into 4
- C.
It divides into 6
Correct Answer
A. It divides into 2Explanation
The cotyledon is the primary leaf of the embryo in seed-bearing plants. It serves as a source of nutrients for the developing plant until it can produce its own food through photosynthesis. The statement "It divides into 2" suggests that the cotyledon splits into two parts during the early stages of plant development. This division allows for the distribution of nutrients and resources to different parts of the growing plant.Rate this question:
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- 9.
There is an embryo in every seed because it is the ___________.
Correct Answer
babyExplanation
The correct answer is "baby" because an embryo is the early stage of development of a living organism, specifically in this context, a plant. In the case of a seed, the embryo is the part that will eventually grow into a fully formed plant. Therefore, it can be referred to as a "baby" plant.Rate this question:
- 10.
Which of the following are examples of nonseeded plants?
- A.
Banana leaf
- B.
Ferns
- C.
Lichen
- D.
Topiary
- E.
Liveworts
- F.
Moss
- G.
Papaya tree
Correct Answer(s)
B. Ferns
C. Lichen
E. Liveworts
F. MossExplanation
Ferns, lichen, liveworts, and moss are examples of nonseeded plants. These plants do not reproduce through seeds like flowering plants do. Instead, they reproduce through spores or by fragmentation. Ferns are a group of vascular plants that reproduce through spores. Lichen is a symbiotic association between a fungus and an alga or cyanobacterium, and it reproduces through fragmentation. Liveworts and mosses are both types of bryophytes that reproduce through spores as well. These plants have different methods of reproduction compared to seeded plants, which rely on the dispersal of seeds for reproduction.Rate this question:
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Mar 21, 2023Quiz Edited by
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Oct 13, 2011Quiz Created by
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