Answer: Index fossils are used to identify layers of rocks. The layers will form an arrangement that relates to their age. In simpler terms, a layer that contains fossils are unique to that certain layer.
Index fossils are fossils that are mostly used by scientists due to it being easily found anywhere around the world and in abundant amounts. It can also be easily identified since they are fossils of widely varied organisms that lived during one short time period.
Cells need a source of energy, they get this energy by breaking down food molecules to release, the stored chemical energy.
Answer:
When the sympathetic and parasympathetic systems are in balance, the tendency is to rest often and easily allowing for renewal and healing to the body. The balance between the two systems is a key step toward greater health and wellness!
Explanation:
Answer:
The net money the farmer will get
= Rs. 39,500
Explanation:
The farmer bought 5 kg seeds of rice at Rs. 100 per kg.
Cost price = 5 × 100 = Rs. 500
And he plants them and harvests 1000 kg of rice grains for sale, which he sells for Rs. 40 per kg
Selling price = 1000 × 40 = Rs. 40,000
The farmer's net profit
= (Selling Price) - (Cost Price) = 40,000 - 500 = Rs. 39,500
Hope this Helps!!!
Answer:
The parent's genotypes are:
Ddpp - tall, white parent
ddPp - dwarf, purple parent.
Explanation:
This question involves two different genes coding for height and flower color in pea plants. The alleles for tallness (D) and purple color (P) are dominant over the alleles for dwarfness (d) and white color (p) respectively.
According to this question, a tall plant with white flowers is crossed with a dwarf plant with purple flowers to produce the following proportion of offsprings: 1/4 tall purple, 1/4 tall white, 1/4 dwarf purple, and 1/4 dwarf white.
Since some of the offsprings contain recessive alleles for both or either genes, the dominant traits of the parent is controlled by an heterozygous genotype. This means that the tall plant with white flowers has a genotype: Ddpp while the dwarf plant with purple flowers has the genotype: ddPp. In a cross between Ddpp × ddPp, 1/4 of each combination of alleles is produced in the offsprings (see punnet square in the attachment).
