Eggs with tough protective shells developed to

Why cut roses died in salt water, vinegar water and clear water and survived longer in the sugar water?

The amount of water vapor in a given volume of air is ... The movement of water molecules through the environment is known as the ...

Which statement describes an ionic bond? A. Electrons transition from an inner shell to a valence shell. B. Electrons are transferred from one atom to another. C. Electrons are shared between atoms. D. Electrons are mobile within a metal.

If a person is RH +, what does this mean

1 - 2N 2 - N 3 - chromosome number 4 - chromosome number in body cells 5 - chromosome number in gametes 6 - produced by fertilization 7 - product of meiosis which one does it belong in? Haploid, Diploid, or both?

Which statement is true for both plants and animals? 1. Plants and animals both use sunlight to generate ATP for energy. 2. Plants and animals both form ADP in the Calvin cycle. 3. Plants and animals both need to consume sugar to store energy. 4.

Why is the earth flat

How did Malthus's essay support Darwin's idea about natural selection? A. Malthus's essay did the opposite, as it did not support natural selection. B. Malthus proposed that an endless amount of resources would lead to greater competition. C.

Which of the following qualities are NOT associated with mineral luster a. opaque b. metallic c. dull d. rough surface

Which of the following BEST explains the role of enzymes in a reaction c. An enzyme binds to a product causing a decrease in the rate of the reaction. a. An enzyme causes an increase in the rate of reaction by binding to a substrate. d.