What event in the history of the Earth allowed for the Earth to develop a magnetic field? *

the Earth was a big ball of lava
the Earth settled out in to layers; crust, mantle, outer core, inner core
the Earth has never had a magnetic field
The Earth started to hold oceans

Answers

Answer 1

Answer:

2

Explanation:

the Earth settled out in to layers; crust, mantle, outer core, inner core


Related Questions

Cross pollination, when the pollen from
one plant lands on the stigma of the
flower in a different plant, is a form of
sexual reproduction. The advantage of
sexual reproduction is that is creates

Answers

Answer:

Genetic diversity.

Can some please help me!

Answers

Answer:

I think it’s translocation.

Explanation: I took this last year and am not too sure.


The inner layer of nasal cavity is coated with epithelial cells that secrete mucus.

What is the importance of the secretion?

Answers

Answer:

It helps prevent allergens and infections from invading the nasal cavity and spreading to other body structures, for example the lungs. The mucus secreted by and which lines the mucosa provides a physical barrier against invasion by pathogens (harmful microorganisms)

Explanation:

Change it to sound like you!!

Help me please!!!!.!:!

Answers

Answer:

chloroplast becausee a plastid that contains chlorophyll and in which photosynthesis takes place.

Explanation:

And that only happends in plants :>

Brainliest is apprciated

Which of the following describes a seed?


a mature ovule of a plant

a mature clone of a plant

a mature fruit of a plant

a mature ovary of a plant

Answers

Explanation:

a mature ovule of a plant

bcz ovule forms seed and ovary forms fruit

Answer:

A mature ovule of a plant...

What will happen if you cross a white (bb) rabbit with another white (bb) rabbit?

Answers

Answer:

All of their offspring will be white

Explanation:

Answer:

The child rabbit will also be white

Explanation: Since both parents are bb the chance of the rabbit's white fur color carrying down is 100%

how can different cells do different jobs in the human body with the same DNA

Answers

Answer:

Almost all of the cells in your body share the same DNA as was found in that first cell*.  For a cell to work, 1000's of these proteins must be made, each doing its particular job. Eyes and lungs are so different because different sets of proteins are made in the various eye and lung cells.

The greatest mitotic activity in a root takes place in the
A: zone of maturation
B: meristematic zone
C: epidermis
D: zone of elongation

Answers

B) meristematic zone

the ending molecules after a chemical reaction has taken place where

Answers

Answer:

I think the answer is products but you worded the question really weird

Explanation:

Gene expression can occur at several points along the pathway from DNA to RNA to proteins. In one example of gene expression, the protein insulin must be trimmed to a smaller size.

How is this is an example of gene expression?

A. until the protein is trimmed, it is not useful to the cell
B until the protein is trimmed, transcription is blocked by repressor protein
C. until the protein is trimmed ribosomes are not active
D. until the protein is trimmed the shape of DNA blocks transcription

Answers

Answer:

A. until the protein is trimmed, it is not useful to the cell

The trimming of protein insulin to a smaller size represents an example of gene expression until it is trimmed, it is not useful to the cell. Thus, the correct option for this question is A.

What is gene expression?

Gene expression may be characterized as a type of biological process through which a gene gets turned on in a cell in order to make RNA and ultimately proteins. With the help of this process, information from a gene is used in the synthesis of a functional gene product that enables it to produce end products.

The process of gene expression consists of two major steps: transcription and translation. During the process of transcription, the information stored in a gene's DNA is passed to a similar molecule called RNA in the cell nucleus.

While the process of translation involves the mechanism through which RNA is converted into amino acids through which functional proteins are constructed.

Therefore, the trimming of protein insulin to a smaller size represents an example of gene expression until it is trimmed, it is not useful to the cell. Thus, the correct option for this question is A.

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Which set of terms describes a realistic cause-effect relationship between solar weather and Earth's magnetosphere? Select the two correct answers.

A. coronal mass ejection -- geomagnetic storm
B. solar wind -- interplanetary magnetic field
C. geomagnetic storm -- aurora
D. radiation belt -- aurora

Answers

Answer:

A & B

Explanation:

A - When a CME hits the Earth's atmosphere, it results in a (temporary) disturbance of the Earth's magnetosphere - a geomagnetic storm.

B - In basics, solar wind drags the magnetic field lines of coronal holes so far out that it surrounds all of the planets in the solar system, forming an IMF.

Who can help me in biology!!

Answers

Explanation:

I can try what the question

Match the activities to their respective categories.
thickness of fur coat
nocturnal nature
type of beak
hibemation
flocking

Answers

The structural adaptation is thickness of fur coat, type of beak, while behavioral adaptation is nocturnal nature, hibernation, and flocking. of the following activities are structural adaptation is thickness of fur coat, type of beak, while behavioral adaptation is nocturnal nature, hibernation, and flocking.

What is adaptation?

A body component, feature, or behavior that aids a living thing's survival and performance in its environment is referred to as adaptation.

The complete question is attached as image.

It can be structural adaptation means the physical changes that organisms undergo in order to adapt to changing environmental conditions Thickness or fur coat, beak type, tooth type, motions, and other structural modifications are examples.

All of the behavioral modifications that organisms make in order to adapt to diverse conditions/situations are referred to as behavioral adaptations. Hibernation, nocturnal nature, flocking, migration, bird cries, and other behavioral adaptations are examples.

Thus, the correct match will be structural adaptation is thickness of fur coat, type of beak, while behavioral adaptation is nocturnal nature, hibernation, and flocking.

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AHAHAAH im down bad Hey lol

Answers

Answer:

yooooo

Explanation:

this is ABSURDDD

Chains of blank form polymers?

Answers

Answer:

Chains of linked carbon and hydrogen atoms

Explanation:

2. Describe the importance of oxygen, carbon dioxide, and ozone to living things.

Answers

Answer:

Animals needs oxygen's to survive and plants need carbon dioxide to survive. The ozone layer reflects harmful UV rays from the sun to protect the things living on Earth.

Answer:

oxygen is the source that makes human to live ozone is the home where we live and plant get carbondioxide which we enhale or throw feom our body

Explanation:

the oxygen is very essential for human beings .for example we get oxygen from a peepal tree and carbondioxide which plant get and the surrounding and earth where we live in earth

meiosis fill in the blanks
Egg
sperm
2
4
fertilization
asexually
sexually



In ____ reproducing organisms,meiosis produces___ daughter cells that contain half the number of chromosomes as the parent cell. in females,meiosis leads to___ cells and ___ cells in males. When these sex cells combine during_____,the chromosome number of the resulting zygote will double, the same as the number found in the organisms body cells.

Answers

Answer:

sexually, 4, egg, sperm, fertilization.

Explanation:

Follow the order I put the words into the order of the blanks.

Fill in the blanks for the detailed process of meiosis as follows:

In sexually reproducing organisms, meiosis produced four daughter cells that contain half the number of chromosomes as the parent cell.In females, meiosis leads to egg cells and sperm cells in males. When these sex cells combine during fertilization, the chromosome number of the resulting zygote will double, the same as the number found in the organism's body cells.

What is Meiosis?

Meiosis may be defined as a type of cell division that significantly produced four daughter cells from a parental cell. These daughter cells are genetically unidentical and may contain half the number of chromosomes of the diploid parental cell.

Due to their structure and number of chromosomes, these cells are haploid in nature. Germ cells or sex cells are generally produced by this mechanism of cell division. This is because when they fertilize each other, they produce the complete number of chromosomes, ie. n + n = 2n.

Therefore, the fill-in-the-blanks for the detailed process of meiosis is well described above.

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An increase in food and a decrease in predators would most likely
genetic variation in a population.
what’s the answer to put in the blank

Answers

Answer:

An increase in available food is an environmental factor which brings about genetic variation in the population of a specie.

Explanation:

Vhich global warming effect is responsible for trapping heat within our atmosphere?
О
Albedo Effect
Milankovitch Cycles
ооо
Clouds
Greenhouse Gas Effect

Answers

Answer:

Greenhouse gas effect

D) 6. In a marine ecosystem, small fish must be able to
swim away or hide from larger fish to avoid being
eaten. Based on this information, for what abiotic
factor do small fish compete with other small fish?

Answers

yes some fishes have long tails that can be a threat which can cause fights.

What are the inputs and outputs of cellular respiration and photosynthesis?
energy
sugar
water
oxygen
carbon
dioxide
Photosynthesis
Cellular Respiration
Inputs
Outputs

Answers

Answer:

I don't understand your question.

Explanation:

but if it's what I'm thinking

the input of Cellular respiration is Oxygen while the output is carbon dioxide, water and energy

the input of Photosynthesis is carbon dioxide, water and sunlight while the output is Oxygen.

Cellular respiration is the breakdown of glucose (6 carbon sugar) in the presence of oxygen to release energy in the form of ATP. their by product being Carbon dioxide and water.

photosynthesis is the ability of plants to manufacture their own food in the presence of carbon dioxide, water and Sunlight. their by product being Oxygen

A judgement based on the information obtained in the scientific method is......

Answers

Answer:

Hypothesis/Conclusion

Explanation:

According to the food web below, what is the phytoplankton?

Answers

your correct answer should be producer

What is the function of the fallopian tube​

Answers

They serve to transport ova from the ovaries to the uterus; they are also the locus for fertilisation of the ovum by sperm.
Explanation:
The Fallopian (or uterine) tubes are two tubes that extend from the uterus towards the ovaries.

Answer:

it transports the ovary to the uterus evry month

mrna is read in chuncks of three, called

Answers

These groups of three are called codons.

The stages of a plant’s life cycle are _____. zygote and fertilization sporophyte and gametophyte fertilization and sporophyte gametophyte and zygote

Answers

Answer:

Hello! So sorry I am late! I do not have the exact answer for this question but here is some information that may be able to help you.

Plants have two distinct stages in their lifecycle: the gametophyte stage and the sporophyte stage. The haploid gametophyte produces the male and female gametes by mitosis in distinct multicellular structures. Fusion of the male and females gametes forms the diploid zygote, which develops into the sporophyte.

Explanation:

I hope the information above was able to help you! Again I'm sorry I cant give the answer you were looking for! Have a great rest of your day or night and good luck on your work!

<3 <3 <3

(WILL GIVE BRAINLY) HELP SOMEONE PLEASE!!

Answers

Answer:

a. dichotomous key

Explanation:

i hope this helps :)

Answer:

cladogram

Explanation:

a cladogram is a branching diagram that shows the cladistic relationship between a number of species so I think thats right

5. Students in a science class want to design an investigation to determine if a fertilizer added to soil affects the height of a plant over time. Which items would the students need to complete this investigation?
A. ruler, calculator, plant, soil samples with different amounts of fertilizer
B. microscope, beaker, plant, soil samples with the same amount of fertilizer
C. computer, stopwatch, plant, soil samples with different amounts of fertilizer
D. tape measure, graph paper, plant, soil samples with the same amount of fertilizer

Answers

A is the answer. You would need soil with different amounts- including no amount- to determine how the fertilizer affects the plants
Since you are measuring the height a ruler would be a good idea as well.

Student will need ruler, calculator, plant, soil samples with different amount of fertilizer.

What are fertilizer ?

Fertilizer, natural or artificial substance containing the chemical elements that improve growth and productiveness of plants.

How does fertilizer affect plant growth?

Fertilizers provide crops with nutrients like potassium, phosphorus, and nitrogen, which allow crops to grow bigger, faster, and to produce more food. Nitrogen in particular is an essential nutrient for the growth of every organism on Earth.  

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What is the advantage of these different feeding niches for the birds?
A
less competition for food
B
fewer abiotic resources for each bird species
с
fewer biotic resources for each bird species
D
less energy available as the birds feed higher in the tree

Answers

Answer: it's D

Explanation: As more birds feed higher in the tree, available energy increases. More abiotic resources are available for each bird. Predators are less likely to feed on birds in a variety of locations.

The advantage of different feeding niches for the birds species is the less competition for the food and other resources. Thus, the correct option is A.

What is the advantage of feeding niches?

Animals can occupy the same ecosystems, but will not have the same niches. The feeding habits and the other adaptations determine niche of an animal within its ecosystem. For example, cheetahs and lions have different hunting styles, thus are able to coexist in the same habitat.

If any two species can have the exact same niche, then they would be in direct competition for the resources with each other. If the competition occurs, then one species will outcompete the other species. If the losing species does not adapt to the change, this may lead to its extinction.

As more and more birds feed higher in the tree, the available energy for the species increases. More resources will be available for each bird niche.

Therefore, the correct option is A.

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Help asap only 1 and 3

Answers

Answer:

1. Differences in air pressure cause movement in the air, which creates wind

3. As the air cools it becomes more dense and falls to the earth's surface

Explanation:

hope this helps :)

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