Answer:
35
Explanation:
it is 35
B)Stabilizing selection
C)Disruptive selection
It is a trait, but is not affected by natural selection.
It is a trait that is shaped by stabilizing selection.
(B) a somatic cell of a male.
(C) a somatic cell of a female.
(D) a sperm cell.
(E) an egg cell
A human cell with 22 autosomes and a Y chromosome is a male sperm cell. Sperm and egg cells contain 23 chromosomes, including one sex chromosome, while other cells typically have 46 chromosomes.
A human cell that contains 22 autosomes and a Y chromosome is (D) a sperm cell. Human cells are normally diploid, meaning they contain 46 chromosomes: 22 pairs of autosomes and a pair of sex chromosomes. Somatic cells (both male and female) have a total of 46 chromosomes, while a zygote, the cell formed after the fusion of an egg and a sperm, is also diploid. However, sperm and egg cells, which are haploid, carry only 23 chromosomes: 22 autosomes and either an X (in the case of an egg cell or a male sperm cell) or a Y (in the case of a male sperm cell) chromosome.
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b) phylogenetic tree II
c) phylogenetic tree III
d) phylogenetic tree IV
Answer:
Your question is incomplete, but I attached the exercise with the possible phylogenetic trees and all the information that your question missed. I hope it helps you.
The most parsimoniuous phylogenetic tree is c) phylogenetic tree III
Explanation:
The most parsimonious tree is the one that takes fewer base-change events, it's the simpler one. In this case it could be tree III or tree IV. But, if we look at the genetic evidence, group 2b and 3 are nearer than 2b and 2a; group 4 and 5 are also closely related. So it is possible that the group 2b, as well as groups 3,4 and 5, diverged from group 2a. So the answer is tree III.
The most parsimonious phylogenetic tree is the one that requires the least changes in the A, C, G, T genetic sequence coding for eye growth, thereby presenting the simplest explanation of evolutionary relationships among the alien species.
The question is asking which of the four possible phylogenetic trees represents the most parsimonious, or simplest, explanation of the shared genetic sequence for eye growth among the alien species. The most parsimonious tree would be one that requires the least amount of evolutionary change in terms of the genetic sequence. This would be determined by comparing each tree and the associated genetic sequences in the way they separate the six groups of aliens and particularly how they divide the single-tail three-eye group. This should provide the simplest explanation of evolutionary relationships based on the alien's genetic code of A, C, G and T.
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Belinda is a 10-year-old elementary school student who has come in for a physical examination. She is 55 inches tall and weighs 120 pounds. Her doctor calculates her BMI at 27.9 (98th percentile for her age). Concerned about her obesity, Belinda's doctor asks about her diet and her physical activity. Her mother reports that Belinda has become "lazy" and does not like to play outside with her friends after school. She says she is more irritable than usual and complains about helping with household chores. Her mother worries that she may be depressed, although she can think of no family issues that may be responsible for this behavior. Belinda sometimes skips breakfast or has cereal and toast in the morning; she takes chips, a juice drink, and a cheese sandwich made with white bread for lunch; and has a toaster pastry or cookies with milk for a snack after school. She doesn't particularly like meat and frequently asks for buttered pasta with cheese for dinner. Belinda says she eats vegetables "when my mom buys them." A blood test reveals a normal hemoglobin level, low serum iron, moderately elevated transferrin, and low transferrin saturation.
weather
elevation
green house gasses
Regrowth of grasses, ferns, wildflowers, and saplings after a forest fire is an example of
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1. climate
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