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-Dominant- [34]
3 years ago
15

How do rocks record changes in Earth's magnetic field

Biology
1 answer:
r-ruslan [8.4K]3 years ago
7 0
When magnetic materials are erupted in a molten magma, the magnetic materials align with the magnetic field and then cool in that direction. <span> It has been shown that the magnetic field reverses periodically and systematically, as determined with this method.</span>
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Describe Two types of drugs and the negative impact the abuse of of these drugs can have on a person health
love history [14]

club drugs: lsd cause rapid heart rate

hallucinogens: bath salts causes hallucinations and can be dangerous to self and others

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4 years ago
Read 2 more answers
What is lost to the environment at each of the trophic levels of this ecosystem? a nutrients from the soil b food sources c heat
Masja [62]

Answer:

C) heat

Explanation:

An ecosystem comprised of biotic and abiotic factors interacting together, in a specified environment.

trophic levels of this ecosystem is the food chain or the level an organism is in the feeding level, this range from producer to tertiary consumer.

If we follow the pyramid of tropic level known as " Energy level" Heat is lost to the environment at each of the trophic levels of the ecosystem. The producer which has large area of the pyramid has a large energy, and as the primary consumer(second tropical level) which are herbivores feed on the producer(first tropical level)grass , it only takes just like 10% energy from the producer and the secondary consumer ( third tropical level) herbivores feed on primary consumer, and only get away with 10% of the energy and as the trend goes up the "Energy keep decreasing inform of heat" like that.

8 0
4 years ago
A solution is select one:<br> a. nonuniform.<br> b. homogeneous.<br> c. heterogeneous.
kotegsom [21]
The answer is Homogenous
5 0
3 years ago
Gene mapping for beak color and feather length in biology what is this
just olya [345]
I am not entirely sure about this. So maybe my response can help you find the answer a little better if my answer is not entirely right?

These last three questions are referring to everything you just worked on. So all you would have to do is refer back to your previous answers. Recall that the titles of the "part 1, 2, and 3" are titled "crossing beak color and tail-feather length", "crossing beak color and feather color", and "mapping tail-feather length and feather color".

1.List the distances between each pair of genes:
beak color and tail-feather length: 20 MU
beak color and feather color: 16 MU
tail-feather length and feather color: 4 MU

2.Which two alleles are the farthest apart?
(the one that is 20 MU apart) Y and L

3.Which two alleles are the closest together?
(the ones that are 4 MU apart) L and B
7 0
3 years ago
How does research into natural selection and traits help you understand why some butterflies have coloration that looks like the
QveST [7]

Answer/Explanation:

Natural selection - over time - selects for traits that improve fitness. A butterfly with wing coloration that looks like a hungry owl would certainly be a deterrent to their natural predators, such as smaller birds. This is because the owl is the predator of the smaller birds, and their instinct is to avoid the owl.

If a mutation arose that resulting in coloration that looked like an owl, (or at least slightly menacing) this would be beneficial to the butterfly, as it would be more camouflaged from predators. This means it would be more likely to reach reproductive age and pass the mutation onto its offspring, who would also have a competitive advantage.

Over time, this would lead to a population of butterflies with coloration that looks more and more owl-like .

7 0
3 years ago
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