The oldest rocks on earth date from about 4.2 billion years ago. What does this suggest about the interval between 4.6 billion years ago, when the earth started to form, and 4.2 billion years ago ?

Answers

Answer 1

Answer:

4.6 billion hehehehhehe


Related Questions

Which gene determines what letter is used to represent a pair of traits?

Answers

Answer:

The dominant gene determines what letter is used to represent a pair of letters.

Explanation:

Example: If brown eyes are dominant (B) and blue eyes are recessive (b) then...

BB means: Brown

Bb: still means brown because there is still a dominant gene

bB: still means brown because there is still a dominant gene

bb: means blue, no dominant gene

Hope this helps!

ASAPPPPP!!!

Why do cells have a high surface area to volume ratio? *
A. to contain more nutrients
B. to contain more organelles
C. to more readily exchange substances across the cell.
D. to have only small substances travel across the cell.

Answers

Answer: C

Explanation: Smaller single-celled organisms have a high surface area to volume ratio, which allows them to rely on oxygen and material diffusing into the cell (and wastes diffusing out) in order to survive. The higher the surface area to volume ratio they have, the more effective this process can be.

Multiple choice. Please help !!!!

Answers

Answer: B. if im correct.

Explanation:

answer is b

it says my answer has to be 20 letters long

Which type of cell is smaller?
Cells
A. Prokaryote
We
PL
SLI
AT H
Ecology.
B. Eukaryote
Evolution &
Classification
C. Nucleokaryote
Genetics & Meiosis
D. All types of cells have this structure.
Life Chemistry
(DNA, Proteins, etc.)
Respiration &
Photosynthesis
Scientific Methods
Click to choose your answer below:
A
B
С
D

Answers

Prokaryote! If u need explanation just ask below

the recommended daily allowance listed on the nutrition facts label is based on how much caloric intake?

Answers

Answer:

2,000-calorie daily diet.

Explanation:

What is this diagram?

Answers

Answer:

This Diagram is of Plant cell and Animal cell...✌

Hope it helps u...

Where, in terms of an ellipse, is the Sun located with respect to the orbit of each planet? Which
one of Kepler's Laws does your answer support?

Answers

Answer:

focus

The Sun is at one focus. The planet follows the ellipse in its orbit, meaning that the planet to Sun distance is constantly changing as the planet goes around its orbit. Kepler's Second Law: the imaginary line joining a planet and the Sun sweeps equal areas of space during equal time intervals as the planet orbits.

In a phrase, tell what each scientist did to help develop the cell theory

Answers

Answer:

English scientist Robert Hooke published Micrographia in 1665. In it, he illustrated the smallest complete parts of an organism, which he called cells. theory that all organisms are made of cells, which are the basic structural units of life

What are Chromatids in biology

Answers

Answer:

A chromatid is one of two identical halves of a replicated chromosome. During cell division, the chromosomes first replicate so that each daughter cell receives a complete set of chromosomes.

Explanation:

a. Find out reasons for similarity and dissimilarity
b. Which types of reproduction are followed in sugar cane plant and in mango tree?

Answers

Sugar cane plant reproduce asexually whereas mango can reproduce by both asexually and sexually.

Sugar cane is usually reproduce by using asexual reproduction i.e. by the use of pieces of stem of sugar cane called setts that contain at least one node. It is necessary that these cuttings contain a node because when they are placed and covered in the ground, primary roots arise from these nodes.

While on the other hand, the mango trees can be propagated both by sexual and asexual reproduction. Sexual reproduction involves the fusion of male and female sex cells during flowering stage. Grafting, Cutting, Layering and Budding are the asexual means for the propagation of mango tree.

Among these the grafting technique is considered as the most suitable method of vegetative propagation of mango so we can conclude that sugar cane plant reproduce asexually whereas mango can reproduce by both asexually and sexually.

Learn more about reproduction here: https://brainly.com/question/12176249

Learn more: https://brainly.com/question/26022841

sensory transduction in the auditory system is much like transduction of __________.

Answers

Answer:

mechanosensory stimuli.

Explanation:

WILL GIVE BRAINLIEST IF CORRECT PLEASE I NEED HELP!

Answers

Answer:

CBADE

Explanation:

The fault has an intrusion (D), and the oldest layers are on the bottom.


Potassium nitrate forms potassium oxide,
nitrogen, and oxygen in certain fireworks.
4KNO3 → 26,0 + 2N2 + 502
This reaction is classified as a
A. combustion reaction.
B. decomposition reaction.
C. single-replacement reaction.
D. synthesis reaction.

Answers

Answer:

A. combustion reaction.

Explanation:

If you light a firework there's more than just a single reaction

Answer:

A. combustion reaction.

Explanation:

Fireworks explode, or combust in the air. Logicly I would classify this as an combustion reaction.

why is the human brain unique

Answers

Answer:

Like with fingerprints, no two people have the same brain anatomy, a study has shown. This uniqueness is the result of a combination of genetic factors and individual life experiences. Like with fingerprints, no two people have the same brain anatomy, a study by researchers of the University of Zurich has shown.

The human brain has just the number of neurons and non neuronal cell That would be excepted for a primate Brain of it’s size, with the same description of neurons between its cerebral cortex and cerebellum as in other species , despite the relative enlargement of the former; it costs as much energy as would be expected .

help anyone i will mark you brainliest so pls...

Answers

Answer:

Purpose of ecosystems

Explanation:

what type of plate boundary interactions take place when the tonic plates slide past each other
convergent boundaries
divergent boundary
subduction boundaries
transform boundaries

Answers

Transform boundaries is the answer because convergent boundaries move together and hit into each-other and divergent boundaries move apart

ovulation is induced by a peak in the secretion of

Answers

Ovulation starts when the secretion of Luteinizing hormone (LH) peaks in females.

Ovulation is simply the release of eggs from the ovaries of females. It happens as a part of the menstrual cycles of the female gender.

The release of eggs from the ovary is triggered by an acute rise in the level of LH in females. LH in males stimulates the production of testosterone.

More on ovulation can be found here: https://brainly.com/question/10050537?referrer=searchResults

50 points and brainliest
Drag each tile to the correct box. Not all tiles will be used.
Mitosis is a type of cell division. Organize the images below to show the steps of mitosis.

Answers

Answer:

The lesson provided all the information, and I got a 100%

Explanation:

How do chemosynthetic organisms get energy? Some examples of organisms include colorless sulfur bacteria, iron bacteria, and giant tube worms

Answers

Answer:

The source of energy for chemosynthesis is energy liberated from a chemical reaction (the oxidation of an inorganic substance)

Explanation:

https://sciencing.com/source-energy-chemosynthesis-6681808.html

What effect does increase salinity have on the density of water?

1. No affect unless temperature also changes

2. Decreases density

3. Increases density

Answers

Answer:

3

Explanation:

For example,The density of seawater depends on the content of salt. It is known that the density of salt is 2.165g/cm3, so the more salt, the greater the density of mixed liquid.

Answer:If you know that dissolution of salt only marginally affects the volume of the solution, how would you expect the density to evolve? It should reasonably increase.

Explanation:

at a given temperature, Should salts be dissolved in the water, and the volume remains reasonably constant, the density

. A solute binds water molecules around itself in a coordination sphere, and should a salt be dissolved, both anion and cation must be solvated; hence an increase in solution density with respect to water.

A scientist fills a glass container with water and places an aquatic plant inside the container, then closes the lid and places the
container in direct sunlight. The scientist observes small bubbles on the surfaces of the plant's leaves on days 1 and 2, but no
bubbles on day 3. The scientist concludes that the bubbles were caused by photosynthesis. Which substance should be
added to the water in order for the bubbles to reappear? (1 point)

Answers

Answer: Are there any options? you either add C02 because it has run out gas or you and in minerals that also contain C02.

Explanation: you need C02 to have photosynthesis, so with a closed off lid,  the gas is going to eventually run out.

Carbon dioxide should be added to the water in the container in order for the bubbles to reappear in the glass container while placed in sunlight. Carbon dioxide is a component of photosynthesis.

What is Photosynthesis?

Photosynthesis is the process by which plants prepare their own food in sunlight and in the presence of carbon dioxide gas. Photosynthesis process takes place in the chloroplast of cells.

Photosynthesis is an anabolic reaction in which carbon dioxide and water reacts in the presence of sunlight which is trapped by the chlorophyll present in the leaves of plant to produce glucose (carbohydrate) and oxygen gas, which is later utilized in the process of respiration.

Learn more about Photosynthesis here:

https://brainly.com/question/1388366

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Energy from hot magma is called
a magnetic
b. geothermal


C)nuclear
d hydroelectric
Please select the best answer from the choices provided

Answers

Answer:

The answer is B.) Geothermal

PLEASE I HAVE UNDER 30 MINUTES!!! (No links)
[botany] Boll Weevils are an invasive species that has developed resistance to many major pesticides. Evaluate how
this influences the Boll Weevils' success and the options that can be used to control them.

Answers

Answer:

boll weevills succes is greatly dependent on its ability to adapt and invade homes this way they are able to live in sheltered areas made by humans and the humans can't get rid of them. a potential way to get rid of them is to find a poison that they'll take for food and that will surely kill them and not just maybe.


80. An atom is to a molecule, as a
to a cell
A. an organism
B. an organ
C. a tissue
D. an organelle

Answers

Answer: C. a tissue

Explanation:

The answer is C, a tissue

What types of cells perform photosynthesis?

a
All prokaryotic
b
All animals
c
All eukaryotic
d
All plants

Answers

Answer:

All plants

Explanation:

This is due to the presence of chorophlly . the green colouring pigment in plants

plssss mark brainliest

In DNA G pairs with C creating a __________ bond *
no
single
double
triple

Answers

Answer:

Triple

Explanation:

Because when guanine pairs with cytodine they form 3 hydrogen bonds

What motivates Pacific salmon to migrate? And give two obstacles they face during migration.

Answers

The pacific salmon is motivated by the massive feeding and potential growth by nutrients in the sea. One obstacle that they would face is the time of the journey and the predators along the way.

Which characteristics would be present in an air mass that develops over the Canadian Plains near the Arctic Circle?

Answers

la verdad no se la repuesta si me la hubiera sabido si te la hubiera dicho

how can I study quickly​

Answers

Answer: Time yourself, takes notes(postcards), try listening to music, try exercising to see if it relieves stress, get more sleep, test yourself, go to your teacher for study guides or explanations

Explanation: Help yourself for a better future, and also Search for questions online or from your teachers

can someone please give me the answer i don't know which one it is?

Answers

Answer:

Sea levels near the arctic rise

Explanation:

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