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sdas [7]
4 years ago
12

Why are there several structurally different pigments in the reaction centers of photosystems?

Biology
1 answer:
Liula [17]4 years ago
3 0

Answer: his arrangement enables the plant to absorb light energy of a variety of wavelengths. ... The electrons of photosystem II are excited and transferred to electron carriers.

Explanation:

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The recommended order of draw for a complete blood count, prothrombin time, and cholesterol is:________
nalin [4]

Answer:

The use of the word "draw" here refers to the collection of blood samples for laboratory tests.

Step A - The first draw goes into the blood culture bottle or tube with a yellow cover.

Step B - This goes into the coagulation tube with a blue cover.

Step C - The next draw goes into the tube for non-additives. This usually has a red top

Step D - This features collection of blood into the tubes with additives. When dealing with additives, blood samples and additives it is important that the sample and additive is rigorously homogenized. This part can is broken down as follows:

  1. this goes into the SST tube. This tube contains a seperator and a clot activator and is usually is colour coded reddish-gray or gold top.
  2. This tube contains Sodium heparin and has a leaf green top
  3. This tube (PST) contains PST contains lithium heparin anticoagulant and a gel separator.  It's cover is colour coded light green
  4. This tube contains Ethylenediaminetetraacetic acid or EDTA for short. It's cover is usually colour coded lavendar
  5. This tube is labelled ACD that is Acid Citrate Dextrose. It's top is coded light yellow
  6. this tube contains Oxalate/Fluoride and it's cover must be colour coded gray.

Cheers!

4 0
4 years ago
Which two systems work together to remove excess water from the body?
Slav-nsk [51]
Urinary and digestive system, because I just learned that like seconds ago.
3 0
3 years ago
Which was an argument used to dispute the theory of plate tectonics?
Liono4ka [1.6K]

Answer:

Option D, Continents cannot cut through the ocean floor.

Explanation:

It was believed earlier that oceans were the land bridges that used to connect  different geologic plates of planet earth earlier, had now sank down and thus there exists no connection between the tectonic plates. Therefore,  without any link or connection, continents cannot cut through the ocean floor.

Also as per the Land Bridge Theory , there has been continuous shifting of dry land due to which identical land species on different continents were found.

Hence, option D is correct

7 0
3 years ago
Read 2 more answers
Carrier proteins are used in active transport true or false
Charra [1.4K]

Answer:

True

Explanation:

Unlike channel proteins which only transport substances through membranes passively, carrier proteins can transport ions and molecules either passively through facilitated diffusion, or via secondary active transport.

4 0
3 years ago
The distance from earth to the moon is about 238,854 miles.
masya89 [10]
We were taught years sgo that it was 240,000 miles.
6 0
3 years ago
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