The correct answer in this question is option A. Biochemical analysis uses similarities in DNA sequences as evidence for evolutionary relationships. Scientists believed that two species with almost the same protein structure are more likely to have a closer relationship. DNA hybridization and gene sequencing are two types of analysis that can be used.
Answer:
Populations of insects in the area decrease - Decrease
Populations of owls in the area increase - Decrease
Some bats are infected with a fatal fungal disease - Decrease
Bats from a nearby colony immigrate into the population - Increase
Improved food quality allows female bats to have two breeding cycles per year - Increase
Explanation:
A population of bats can be affected by numerous factors as to will its population increase or decrease, just as at any other organism. If the populations of their food source decrease, the bats will have less food, thus their numbers will decrease. The same goes is a deadly diseases spreads among them, as many will be infected and will die out. They also have predators, so if some of their predators has increase in its population, the population of bats will go down. On the other hand, if the amount and quality of food is better, and the females are able to breed twice a year instead of once, than the population will grow. If bats from the same species but from another colony move in and join the population, than the population will have rapid increase.
DNA replication is the process in which a new DNA strand is synthesised from the existing DNA strand using that as the template.
DNA strands are built from building blocks of units called nucleotides, DNA exists as a double helix which means that two complementary strands are wound around each other and bonded by hydrogen bonds between the nitrogenous bases in the nucleotides.
1. replication begins when the DNA double helix unwinds
DNA helicase breaks the Hydrogen bonds keeping the two strands together and unwinds the helix so that the two strands are exposed for replication to be initiated.
2 . the nitrogenous bases pull apart from each other at a distance, exposing the two strands
The two strands pull apart from each other so that the strands are exposed for them to be used as templates in synthesising the new strands
3. as the double helix continues to open, new nitrogenous bases are added on both sides
nucleotides consist of nitrogenous bases, phosphate group and pentose sugar. the uniqueness of DNA strands are in the sequence of nucleotides. the bases added to the new strand are complementary bases to that already in the template strand
1. traits
2. genes
3. DNA
4. environment
5. 23
6. haploid
7. half
8. fertilization
9. 46
10. zygote
11. half
12. randomly
13. different
Hope this helps a little :)