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Contact [7]
4 years ago
13

(100 POINTS AND BRAINLYEST?? WOWWWW)

Biology
1 answer:
-BARSIC- [3]4 years ago
4 0

Answer: the answer is really D:  because index fossils are of organisms that existed for a short period of time. When finding them in a rock layer, you can be certain that the rock layer was formed in that small-time frame.

Explanation: I took the quiz :)

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Microwaves are produced when
Nat2105 [25]

Answer:

magnetic and electric fields are applied perpendicular to each other

Microwaves are electromagnetic waves which are composed of magnetic and electric fields oscillating perpendicular to each other.

Your Welcome!!

8 0
3 years ago
Which part of the brain is associated with ten of the 12 cranial nerves
Luda [366]
Hey there!

There are different types of nerves. Some of them are sensory nerves like the ones in your hands and feet, and some complete other functions. However, they all originate from somewhere.

Cranial nerves originate from the brain itself, and spinal nerves come from the spinal cord. Damaging any can cause serious injury like death and paralysis. There are 12 cranial nerves in the nervous system, and 10 out of 12 originate in the brain stem.

Hope this helps!
3 0
3 years ago
What are some some similarities among all four types of molecules? list as many as you can
Ludmilka [50]
Carbon,hydrogen and oxygen
5 0
3 years ago
Question 7 of 30
user100 [1]
A because if you are going down deeper into the ocean, you are going farther away from the sun so it will become colder.
4 0
4 years ago
Do you think that all pollen germinates indiscriminately on all stigmas?
r-ruslan [8.4K]
Pollen tube growth is one of the most fascinating—and essential—phenomena in the life cycle of flowering plants. After a compatible interaction between pollen grains and the stigma surface, the pollen germinates and forms the pollen tube, which grows through the stigma, style, and transmitting tract to deliver the sperm cells to the ovule." 
2) Although pollens of many species germinate in simple aqueous media, stigmas do not provide satisfactory sites for the germination of most foreign pollen... Stigmas not only provide the proper conditions for the germination of pollen from their particular species, they actively inhibit the germination of pollen of many unrelated species.
4 0
4 years ago
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