Answer:
<h2>1. DdBb</h2><h2>2. ddBb</h2><h2>3. DB, Db, dB and db.</h2><h2>4. dB and db.</h2><h2>5 50% or 1/2</h2><h2>6. 1/8 </h2>
Explanation:
As given, Allele for dimples(D) is dominant over alleles for no dimples (d), so D is dominant over d.
Allele for broad eyebrows (B) is dominant over allele for slender eyebrows (b), so B is dominant over b.
A man heterozygous for both traits ( DdBb) marries a women who has no dimple and heterozygous fro eyebrow (ddBb)
So cross is = DdBb × ddBb
1). Genotype of the man is DdBb.
2). Genotype of the woman is ddBb.
3). Genotype of the gametes produced by the man are DB, Db, dB and db.
4). Genotype of the gametes produced by the woman are dB and db.
5). Probability that their first child will have dimples 50% or 1/2
6). Probability that there first child will have both dimples as well as slender eyebrows 1/8
I claim light, water and minerals are the limiting factors that might affect the growth or diversity of our ecosystem.
Abiotic factors are the non-living components of an ecosystem and include light, minerals, water etc. These are the vital components without which an ecosystem cannot exist.
Light is essential not only for photosynthesis in plants, but also in maintaining a livable temperature on Earth. Day and night cycles affect and form all the organisms as well as the interactions between them .
Water in itself makes possible the process of photosynthesis in plants as well as the majority of chemical processes in living organisms. Furthermore, makes possible the absorbtion of soil nutrients by the plant roots. Without water, life would not be possible.
Minerals are trace elements that exist in all living organisms and are vital to the existance of life. They can be found in both organic and inorganic combinations and are responsible for the existance and functioning of all mental and physical processis. They are most important in maintaining all physiological process as well as acting as catalysts for many biological reactions.
Ecosystems are complex systems that are built on complex interactions between organisms and their physical environment. In order for any life to exist, certain conditions and requirements need to be fulfilled. Among these, light, water and minerals are vital to the existance of life. Without these three, life as we know it would not be possible. They shape both the ecosystem and the organisms living in a certain area. Their abundance dictates both the growth and diversity of our ecosystem.
Parasitism and autotrophism
Red Orange Yellow Green Blue Indigo Violet
<---Longest wave length shortest wave length--->
As you went down the colors of the rainbow the wave length got shorter or faster.
