Answer:
It can be best explained with the help of Gause's law of competitive exclusion.
It states that no two species can coexist stably which compete for exact same resources.
In such conditions, the species which is inferior to other in terms of adaptations either extinct or evolve towards a different ecological niche.
For example, Galapagos island finches evolved with different shapes and sizes of beaks as an adaptation towards limited resources available such as different types of seeds or food.
Answer:
genotype, phenotype
Explanation:
The genotype is the individual's collection of genes, is a unique version of DNA sequence. Phenotype is the expression of these genes, they are the observable characteristics an individual presents and it can be influenced by many factors such as environment, diet, etc.
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b. has a genome made of RNA.
c. has the simplest of all protein coats.
d. was discovered before any other virus.
How is the virus reproduced during the lysogenic cycle?
a. through reproduction of the host cell
b. by using viral enzymes to reproduce viral DNA
c. by using the cell's enzymes to reproduce viral DNA
d. by breaking the cell open and releasing new viruses
Ans. (b). has a genome made of RNA.
Retroviruses are viruses with RNA molecules as their genome. They insert a copy of their RNA genome into the host cell DNA and change the cell genome. These viruses are generally known as single-stranded positive-sense (+ strand) RNA viruses.
Examples: Human immunodeficiency virus and hepatitis B virus.
Thus, the correct answer is option (b).
Ans. (a). through reproduction of the host cell.
Lysogenic life cycle is a virus reproductive cycle that involves integration of viral nucleic acid into host's genome or formation of a replicon in host's cytoplasm.
The host cells (bacterial cells) remain alive and reproduce normally, so thus, viruses reproduce through the reproduction of host (bacterial cells).
Thus, the correct answer is option (a).
Metabolism refers to all the chemical reactions that occur within an organism to maintain life. These processes include various biochemical reactions that break down nutrients from the food we consume and convert them into energy, as well as the processes that build and repair tissues, store energy, and eliminate waste products.
The thyroid gland is the endocrine system gland that produces two hormones that significantly affect metabolism. These hormones are thyroxine (T4) and triiodothyronine (T3). These hormones play a crucial role in regulating the body's metabolism, which includes processes like energy production, temperature regulation, and the maintenance of healthy body weight. An imbalance in these thyroid hormones can lead to metabolic disorders such as hypothyroidism and hyperthyroidism.
Minerals must have a definite chemical composition which may differ within specified limits. According to geologists minerals must be:
>naturally occurring-meaning, people did not make it.
Answer: Minerals must be homogenous.