Answer:
Water moves via osmosis from an area with high concentration to an area with low concentration.
Explanation:
Answer:
human embryonic stem cells are obtained from embryos, thereby they are subject to ethical, religious, political and legal considerations
Explanation:
Human embryonic stem cells (HESCs) are pluripotent undifferentiated cells derived from blastocyst-stage embryos, which have the ability to produce any type of somatic cells. HESCs are obtained <em>in vitro</em> from embryos that are 5-6 days old. These cells are valuable tools in research in order to understand the genetic and physiological mechanisms of human development, as well as to develop treatments against diseases. The use of embryonic stem cells in research is controversial because these techniques involve the destruction of human embryos, and there are people who consider human life begins with the formation of the diploid zygote after fertilization, thereby raising the debate if a human embryo can be regarded as a human being.
Answer:
by conducting scientific experiment.
Explanation:
The effect of temperature on changes in flower color can be tested by performing scientific experiment. The temperature range will be independent variable and the variation in flower color will be dependent variable.
In this way the experiment will be done to see the result in order to prove the hypothesis.
Explanation:
1. What is a longitudinal wave?
- A wave vibrating in the direction of propagation
- This is also called "pressure waves"
- Example: Sound waves, ultrasound waves
2. When you hear a sound wave through the air, what are you detecting?
We are detecting the sound wave through the ears. There is a part called ear drum present inside the ear and it turn contains 3 bones which makes us to hear the sounds. When sound waves enters, the ear drum vibrates.
3. In which direction does the material vibrate, as energy travels through it?
The direction is perpendicular to the direction of energy transport.
4. When a wave transmits, or transfers, energy, do the individual molecules or particles also move from one end to the other?
Yes, the particles move from one end to other.
