Inside a water molecule, hydrogen and oxygen are connected by polar covalent bonds. This results from oxygen's higher electronegativity, causing the shared electrons to spend more time near the oxygen atom, creating a polarity. Hydrogen bonds, although not found within single water molecules, exist between different water molecules and contribute to water's overall properties.
The bonds found inside a water molecule between hydrogen and oxygen are polar covalent bonds. A covalent bond is established when electrons are shared between atoms. In a water molecule (H2O), electrons are shared between hydrogen and oxygen. However, oxygen has a greater electronegativity than hydrogen, causing the shared electrons to spend more time closer to the oxygen atom, hence creating a polarity.
Sometimes, a weaker bond known as a hydrogen bond, which is a type of dipole-dipole interaction, can be found between water molecules. Although these are not found inside a single water molecule, they are crucial for the properties of water as a whole.
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b. ATP
c. glucose
d. high energy electrons
________________(B-ATP)______________
Answer:
C. Zygote
Explanation:
Alternation of a generation refers to a type of life cycle wherein organisms spend part of their life span in the gametophytic stage and part in a sporophytic stage.
The gametophytic stage is the one that bears gametes producing organs and produce gametes. Male and female gametes fuse together to form a zygote. The zygote develops into sporophyte by repeated cell divisions.
The sporophyte stage of the life cycle is the one that is responsible for the formation of spores. Spores germinate to give rise to the gametophyte stage and the cycle repeats itself.
For example, flowering plants have a dominant sporophytic phase. The haploid male and female gametes are formed in microsporangia and megasporangia respectively.
The male gametes of flowering plants are carried by pollen to the female gamete, the egg cell. This is followed by the fusion of male and female gamete to form a diploid zygote. The zygote divides mitotically and forms an embryo.
B.m∠B = m∠D
C. AB = DA
D. AB = BC