Answer:
Lunar Eclipse: The moon moves in an orbit around Earth, and at the same time, Earth orbits the sun. Sometimes Earth moves between the sun and the moon. When this happens, Earth blocks the sunlight that normally is reflected by the moon. (This sunlight is what causes the moon to shine.)
Explanation:
Answer:
Explanation:
A cross between plants with round seeds (RR) and plants with wrinkled seeds (rr). If both parents are homozygous, having one type of gamete each, i.e. R from round seed parent and r from wrinkled seed parent (RR X rr).
R R
r Rr Rr
r Rr Rr
All the offspring of generation would be round with genetic constitution Rr. They will be heterozygous plants having two different alleles.
If both parents has heterozygous round seeds with genotype Rr. So, we have Rr × Rr. The gametes produced from each of the parents are of two types, R and r.
R r
R RR Rr
r Rr rr
The generation has a genotypic ratio of 1 RR : 2 Rr : 1 rr. The phenotypic ratio is 3 round : 1 wrinkled.
A country that is not growing is characterized by an age structure that is largest among post-reproductive years.
Sexual reproduction is a process involving the fusion of two gametes to form a zygote. Gametes are special reproductive cells produced by meiosis. It produces genetically dissimilar offspring. Offspring may inherit beneficial qualities from both parents and there is a greater genetic variation in the offspring, leading to species that are better adapted to changes in the environment.
Water is polar covalent, it is asymmetrical and has a electronegativity of less than 1.7
