Answer:
The balance of nature is a theory that proposes that ecological systems are usually in a stable equilibrium or homeostasis, which is to say that a small change will be corrected by some negative feedback that will bring the parameter back to its original "point of balance" with the rest of the system
Explanation:
The <em>TYR </em>gene is responsible for the production of the enzyme tyrosinase which is crucial in the production of melanin which is primarily responsible for skin pigmentation and for pigmentation of other organs. In albinism, there is mutation of the <em>TYR </em>gene therefore there will be no transcription of DNA to mRNA and no translation of mRNA to the enzyme tyrosinase leading to its deficiency. The deficiency of tyrosinase will eventually lead to the absence of melanin and ultimately, the absence of pigmentation in an organism.
A fertilized egg is called a zygote until it divides into 16 cells, forming a ball-shaped structure called a morula. ... In humans, it takes about four days for a zygote to become a morula and another three days until the embryo attaches itself to the mother's uterine wall.
Answer:
Diffusion is an example of passive transport and it requires no energy.
Explanation:
Answer:
B. The chimp and human are the most closely related organisms with the fewest differences in their amino acid sequence
Explanation:
This question shows a table containing the amino acid sequence of haemoglobin protein in different organisms. According to the table attached, a total of 15 amino acids are represented for each organism. A very reliable evidence that shows the relationship between organisms i.e. how related they are, is their DNA SEQUENCE.
Since the amino acid sequence of the protein in an organism is determined by the DNA sequence, organisms with very similar amino acid sequence are said to be CLOSELY RELATED. Hence, the similar the DNA sequence, the closer the relationship between organisms. In this case, the chimp and human have the same set of amino acids in their sequences, hence, they are the most closely related organisms with the fewest differences in their amino acid sequence.
