Explanation:
I would use a digital weighing scale to perform the operation
the following steps should be considered.
1. Turn ON the digital scale
2. Zero the scale(this eliminate any previous measurements or default readings)
3. Place the dish on the scale and note the initial readings
4. Place the sample of NaCl to be measured and note the final reading
5. Subtract the initial reading from the final reading
The final reading is the amount of NaCl
The four parts of evolution are variation, inheritance, selection, and time.
The three ingredients of natural selection are variation, consequences, and heritability.
Explanation:
Parts of evolution:
- Variation denotes the uniqueness in genetic makeup which leads to physical differences among different species and within species. Like in a species of butterflies, variations in body size, color, feathers can be observed.
- Inheritance refers to the genetic material passed from the parents to the offsprings. These are specific phenotypes like color of skin or hair, shape of nose etc.
- Selection includes inheritance and acquiring of certain phenotypes to adapt and survive better, reproduce offsprings. These new offsprings in turn produce new offspring with those phenotypes and result in the entire population.
- Time decides about the various changes and adaptations in species. Certain evolutions like that of whale happened millions of years ago; however, the numerous viruses have evolved recently.
In natural selection,
- Variation is the change in the individual traits.
- Consequences are adaptation of certain traits by individuals which makes them to be better to survive and reproduce
- Heritability refers to the resemblance of the offspring to their parents.
Answer:
Urban development can magnify the risk of environmental hazards such as flash flooding. Pollution and physical barriers to root growth promote the loss of urban tree cover.
Hope that helps!
Alexander Fleming discovered the penicillin in 1928. He noticed that some bacteria he had left in a petri dish had been killed by naturally occurring penicillium mould.The penicillin began the era of antibiotics, has been recognized as one of the greatest advances in therapeutic medicine. The research required to determine if the penicillium extract was safe and killed bacteria was done at Oxford University.P<span>rogram of animal experiments and clinical trials was carried.</span>
Answer:
C
Explanation:
As shown in the picture I attached to my answer, we can see all of the tectonic plates, which make up the lithosphere. The pieces do move very slightly every year.
