Imagine this field of flowers. environmental conditions change. the climate becomes colder and the winds become fierce. such a climate favors plants that grow close to the ground, have needles, and have bright flowers. in this field of flowers, only the shortest plants survive. over time, the population consists of very short, low growing plants. this is also an example of selection.
a) directional b) disruptive c) environmental d) stabalizing

Option (A)

Explanation:

Directional selection is usually defined as a type of natural selection method where the genetic variance of a particular population moves towards a new type of phenotype due to their exposure to the frequent changes that occur in the environment.

This method leads to a decreasing rate of genetic variability. In nature, this method results in the evolutionary trend of a population towards one particular end of the trait spectrum.

Thus, the correct answer is option (A).

water is a polar molecule. a chemical bond is a force of attraction between atoms or ions. bonds form when atoms share or transfer valence electrons. atoms form chemical bonds to achieve a full outer energy level, which is the most stable arrangement of electrons. so, false

explanation:

in h2o molecule, two water molecules are bonded by a hydrogen bond but the bond between two h - o bonds within a water molecule are covalent. the greater the electronegativity difference, the more ionic the bond is. bonds that are partly ionic are called polar covalent bonds. nonpolar covalent bonds, with equal sharing of the bond electrons, arise when the electronegativities of the two atoms are equal.

light dependent reactions:

light independent reactions:

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