Answer: Light colored peppered moths decreases in number and dark colored peppered moths increases.
Explanation: The population of light colored peppered moths decreases whereas the dark colored peppered moths increases in number because the light colored peppered moths are visible to the predator birds whereas the dark colored peppered moths are not visible due to dark coating of the trees so they are saved from the birds and therefore, increase in population of dark colored peppered moths occurs and decrease occur in light colored peppered moths population.
A thorough soil analysis
Explanation:
A through soil analysis must be included in Jordan's report in order to ascertain is findings.
Since he seeks to determine the effect of various soil pH on plant growth, it is pertinent he performs a pH analysis of the soil.
- The soils pH is the independent variable. It is the cause of the varying plant growth according to the hypothesis he must have formulated,.
- The dependent variable is the pant growth.
- It will be incomplete to exclude the soil analysis report from his findings.
The soil is the component that contains the minerals that conditions pH.
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<span>B. Relaxation
</span>Systole is the ________ phase of the cardiac cycle.
NOT:
A. Contraction
<span>C. Monitoring </span>
<span>D. Termination</span>
Answer:
True
Explanation:
The formula for density is
p = m/v
density = mass ÷ volume
Answer:
Gram positive; Contain thick mesh wall of peptidoglycan in cell wall.
Explanation:
- Gram staining technique is used to separate the gram positive and gram negative bacteria on the presence or absence of thick layer of peptidoglycan in cell wall.
- If a bacteria contain thick layer of peptidoglycan in cell wall it will retain the primary stain crystal violet (purple) and known as gram positive bacteria.
- If bacteria don't have thick layer of peptidoglycan in cell wall the stain will wash out and it will give the pink color known as gram negative bacteria.
- Peptidoglycan is glycoprotein or Glucose+Protein.