Biology, 04.10.2021 14:00 aerisander02
Kaylronment and its Interactions: UNIT 3
4. Study an area around you and observe if there is there any evidence of human
interferencer For example, rubbish or a pathway? How did this impact on the living
organisms and also the abiotic factors in your square? What suggestions can you make
to prevent this kind of interference)
Answers: 2
Biology, 22.06.2019 03:00
To answer this question, researchers studied populations of the dusky salamander (desmognathus ochrophaeus) living on different mountain ranges in the southern appalachian mountains. the researchers tested the reproductive isolation of pairs of salamander populations by leaving one male and one female together and later checking the females for the presence of sperm. four mating combinations were tested for each pair of populations (a and b)Γ’β¬βtwo within the same population (female a with male a and female b with male b) and two between populations (female a with male b and female b with male a). the proportion of successful matings for each mating combination was measured. for example, when all the matings of a particular combination were successful, the researchers gave it a value of 1; when none of the matings were successful, they gave it a value of 0. then the researchers calculated an index of reproductive isolation that ranged from 0 (no isolation) to 2 (full isolation). the reproductive isolation value for two populations is the sum of the proportion of successful matings of each type within populations (aa + bb) minus the sum of the proportion of successful matings of each type between populations (ab + ba). the table provides data for the geographic distances and reproductive isolation values for 27 pairs of dusky salamander populations.
Answers: 1
Biology, 22.06.2019 08:00
Drag each label to the correct location in the equation. not all tiles will be used. the density of mercury is 13.6 grams per cubic centimeter. complete the steps for converting 13.6 g/cm3 to kg/m3. (1 kg = 1,000 g, 1 m3 = 106 cm3)
Answers: 3
Biology, 22.06.2019 10:30
In order to study genetic mutations, scientists must study genetic material. which statement describes the genetic material scientists are most likely studying? a) they study alleles that contain chromosomes, which are rna.b) they study alleles that contain genes, which are chromosomes.c) they study chromosomes that contain genes, which are dna segments.
Answers: 1
Biology, 22.06.2019 11:00
Use the above pedigree for questions 1,2, and 3 1. what kind of genetic disorder is represented in the pedigree? a. recessive b. dominate refer to the pedigree in question 1. 2. is the mutated gene in this disorder located on a sex chromosome (x or y) or an autosome? a. sex chromosome b. autosome refer to the pedigree in question 1. 3. which generation has individuals that you are certain are heterozygous for the mutated gene? a. generation 1 b. generation 2 c. generation 3
Answers: 2
Kaylronment and its Interactions: UNIT 3
4. Study an area around you and observe if there is there...
Mathematics, 12.11.2020 18:50
Mathematics, 12.11.2020 18:50
Health, 12.11.2020 18:50
Health, 12.11.2020 18:50
English, 12.11.2020 18:50
Health, 12.11.2020 18:50
Mathematics, 12.11.2020 18:50
Chemistry, 12.11.2020 18:50
History, 12.11.2020 18:50
English, 12.11.2020 18:50