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Two important substances that enter a plant through the roots would be nutrients and water. Water is extremely important for the plant to be able to make food.
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What 2 catogories of substances include pure substances?
elements and compounds
What r d different types of chlorophyll present in plants?
There are two main pigments.They chlorophyll a and b.
How many characteristic properties of 2 substances must be different for the two substances to be different?
1
What plants have 2 cotyledons?
Vascular plants
Why the separation of substances is necessary?
it is important to separate and purify substances so that: 1.we can get them in their pure form. 2.to remove undesirable particles from them.
What are the 2 function of digestive system?
1. break down food into simpler substances 2. absorb them so that they can be used by the body
The chemicals present in the plants that break down the insects are most likely?
1.fats 2.hormones 3. enzymes 4.carbohydrates
What are two helpful effects of volcanoes?
1. They produce ash that fertilizes the soil 2. The lava destroys old plants so new ones can grow in and absorb the old plants' nutrients
What are the 2 most basic categories for plants?
Vascular and Non-vascular plants
What is the function of the rhizoids?
1. Rhizoids keep plants attached on the soil 2. Rhizoids absorb water and nutrients Rhizoids utilize capillary action to absorb water by moving the water up them for absorption by certain plants, sponges and fungi. They use the same methods to absorb nutrients. Edit : to obtain water [GradPoint/Novanet]
What 2 organisms have a cell wall?
plants and fungi but of different substances cellulose , chitin respectively
What are the 2 adaptations in plants?
By evolution, it could develop thorns to keep consumers away. Some plants store bitter substances in their vacuoles to stop consumers from consuming the whole plant. Also, plants tend to bend toward the direction of sunlight to increase their production of "food" by photosynthesis.
What 2 substances is a solid at 50 degrees Celsius?
Most metals and most plastics are solid at 50 oC.
What are 2 jobs of roots?
absorb water and absorb nutrients
What do plats need from the soil?
They need many things from soil. They are: 1. Ground to stand on - The soil gives the plants roots space to fix in and form the base on which the plant grows 2. Water - the roots of the plants go deep into the soil and absorb water 3. Nutrients - the roots of the plants go deep into the soil and absorb nutrients like phosporus, ammonia etc that are present in the soil
What is hygroscopic behavior?
a hygroscopic object absorbs moisture from the air.
What are 2 advantages of a one-way digestive tract?
Advantages are: - it uses less energy and is less likely to experience harmful mutation during reproduction - it enables the body to absorb a large amount of the needed substances in food
