Answer:
A) determined by the environment
Explanation:
Answer: Quartz clocks and quartz watches are timepieces that use an electronic oscillator regulated by a quartz crystal to keep time. This crystal oscillator creates a signal with very precise frequency, so that quartz clocks and watches are at least an order of magnitude more accurate than mechanical clocks.
Explanation:
The inhalation of mercury vapor can produce harmful effects on the nervous, digestive and immune systems, lungs and kidneys, and may be fatal. Mild, sub-clinical signs of central nervous system toxicity can be seen in workers exposed to an elemental mercury level in the air of 20 μg/m3 or more for several years.
Answer:
D. They closed the Boston Harbor and limited (but did not withdraw) the colony's right to govern itself
Explanation:
On May 10, 1773, the British Parliament passed the <u>Tea Act</u>. This act allowed British companies to ship tea to the colonies without duties, but the colonists still had to pay a tax on tea.
They were outraged at this display of "taxation without representation", so they tried to boycott the tea and force the ships to return to Britain. This didn't work, so they moved onto their next plan: <u>The Boston Tea Party.</u> On December 10, 1773, a group known as the Sons of Liberty disguised themselves and boarded the ship. They threw thousands of pounds of British tea into the Boston Harbor.
The British found out and they were angry and shocked. They realized the colonies were out of control, so they passed the <u>Coercive/Intolerable Acts.</u> These:
- Closed the Boston Harbor
- Placed the colony under direct British control
- Prevented trials of British officials from occurring in the colonies
- Required British soldiers to be quartered at the colonists' expense
The correct answer is D. They closed the Boston Harbor and limited (but did not withdraw) the colony's right to govern itself. The colony had some power, but it was extremely limited.
Answer:
Photosynthesis begins in chlorophyll-containing photosystems.
Explanation:
Photosynthesis begins in chlorophyll-containing photosystems when the chlorophyll molecules absorb photons of light. This energy passes through other chlorophyll molecules, towards the reaction center of Photosystem II. The researcher should use plant with normal enzyme as a control with a plant having mutant enzyme. A plant that has multiple photosynthetic pigment has greater fitness as compared to plant that has only one type of photosynthetic pigment because multiple pigments absorb different wavelengths of light that allows the plant to capture the maximum amount of energy from the sun for photosynthesis.
