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Vilka [71]
3 years ago
14

What event occurs in photosystem 1?

Biology
1 answer:
Aleonysh [2.5K]3 years ago
8 0
Pigments in photosystem 1 use energy from light to reenergize the electrons.
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The extremities of an animal's body include mostly _____ bone
frez [133]
Not really sure at all but just a guess the answer is "long", but that's humans I think not animals but worth a try I guess lol
4 0
3 years ago
All about birds why are birds able to leave virtually everywhere on earth biology junction
Lelechka [254]
Birds live virtually everywhere on Earth because they have evolved endothermy, the ability to use their metabolism to maintain a constant body temperature.
Birds belong to the class aves; they have an extremely efficient, one way breathing system with additional air sacs. Flying birds have strong, hollow bones and powerful flight muscles. Most birds can fly, they have a strong heart and an efficient way of breathing; which are necessary for birds to fly. 
5 0
3 years ago
What do scientists use to describe the climate of an area?
kupik [55]

Answer:

C

Explanation:

Though the wildlife is based on the weather (you wouldn't see a polar bear in the rainforest), the weather is not based on the wildlife. If you put a polar bear in the rainforest, it won't make it a tundra. The ages of the plants are also completely irrelevant.

4 0
3 years ago
A repeating pattern of atoms, ions, or molecules in a mineral is called ?
gladu [14]
<span>the answer is called lattice points.

hoped it helped!!
</span>
6 0
3 years ago
The sequence of one strand of DNA is 3' TCGATC 5'. What is the sequence of the complementary strand?
valentina_108 [34]

Answer:

A) 5' AGCTAG 3'

Explanation:

DNA strands are antiparallel meaning that 3' to 5' has a complementary strand from 5' to 3'. This means that the last two answers can be eliminated because you can't have the 3' side pair up with a 3' side.

the other thing to remember is one of Chargaff's rules:

- A pairs with T

- G pairs with C

When writing a complementary strand's sequence, you must "convert" the letter in the original sequence to the letter that it is paired with by Chargaff's 2nd rule.

4 0
3 years ago
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