Guard cells use osmotic pressure to open and close stomata, allowing plants to regulate the amount of water and solutes within them. In order for plants to produce energy and maintain cellular function, their cells undergo the highly intricate process of photosynthesis
Answer:
The answer is statement 3: Smaller class size is related to better academic performance
Explanation:
An hypothesis is an assumption taken to be true for the purpose of investigation.
Unlike statement 3, the statements 1, 2 and 4 are more like facts, since they are definite.
Thus, statement 3 tells of an assumption, and is an hypothesis
Answer:
In snapdragon plants, phenomenon of incomplete dominance is observed.
Incomplete dominance is a type of inheritance in which the dominant allele can not express itself completely over the recessive allele.
It leads to the generation of intermediate phenotype in heterozygous condition.
Due to this reason, when two purebred snapdragon plants form red and white flowers are crossed, it results in the production of offspring all with pink flower that is, an intermediate phenotype of red and white.
1. The four primary functions of carbohydrates in the body are to provide energy, store energy, build macromolecules, and spare protein and fat for other uses.
2. Glucose energy is stored as glycogen, with the majority of it in the muscle and liver.
Examples:
1. Beans and legumes, such as black beans, chickpeas, lentils and kidney beans.
2. Fruits, such as apples, berries and melons.
3. Whole-grain products, such as brown rice, oatmeal and whole-wheat bread and pasta.
4. Vegetables, such as corn, lima beans, peas and potatoes.