Answer:
1. C. environmental scientists
Explanation:
Environmental scientists serve on matters like the perception of surface methods, assessing alternative energy methods, pollution control and moderation, natural source administration, and the consequences of global atmosphere difference. Environmental issues most ever involve an interaction of environmental, biochemical, and life methods. Environmental specialists bring a methods suggestion to the judgment of environmental obstacles. Key components of an efficient environmental expert involve the capacity to associate space, and time associations as well as quantitative study.
2. A
3. B
Answer:
1. Water vapor condenses to form clouds.
2. Water falls as rain, snow, and sleet.
3. Water flows down mountains and hills.
4. Water joins streams or forms groundwater.
CO2 release in the human body takes place during the Krebs Cycle stage of respiration. The Krebs cycle is an absolutely crucial phase as it give us energy.
Answer:
The data are not consistent with law of equal segregation.
Explanation:
According to law of segregation, the ratio of yellow peas to green peas at F2 should be 3:1.
yellow green
Observed frequencies 5920 2103
Expected frequency = 6017.25 = 2005.75
Using Chi square():
yellow =
=
= 1.57
green =
= 4.72
total = 1.57 + 4.72 = 6.29
Degree of freedom = 2 - 1 = 1
tabulated (α = 0.05) = 3.841
<em>The calculated Chi square value is more than the tabulated Chi square value, hence, the conclusion is that the data are not consistent with law of segregation.</em>
Answer:
From the whole progeny of 544 plants, 34 individuals are expected to have short stems and white flowers.
Explanation:
<u>Available data:</u>
- short stems coded for by recessive allele t
- white flowers coded for by recessive allele p
- T codes for tall stems
- P codes for purple flowers
- Cross between two heterozygous individuals
- Total number of the progeny 544
In a dihybrid cross, it is expected to get a phenotypic ratio of 9:3:3:1
Cross:
Parentals) TtPp x TtPp
Gametes) TP Tp tP tp
TP Tp tP tp
Punnett square)
TP Tp tP tp
TP TTPP TTPp TtPP TtPp
Tp TTPp TTpp TtPp Ttpp
tP TtPP TtPp ttPP ttPp
tp TtPp Ttpp ttPp ttpp
F1)
- 9/16 T-P-
- 3/16 T-pp
- 3/16 ttP-
- 1/16 ttpp
(<em>Note: The "-" symbol represents either a dominant allele or a recessive one</em>)
From these possible genotypes and phenotypes, we can get their corresponding amount of individuals
16 ---------- 544 individuals
9 ------------X = 306 individuals tall stems and purple flowers T-P-
3-------------X = 102 individuals with tall stems and white flowers T-pp
3------------ X = 102 individuals with short stems and purple flowers ttP-
1 ------------ X = 34 individuals with short stems and white flowers, ttpp