Iridium (Ir) is a rare element on Earth, but common in
asteroids
volcanoes
the oceans
icy comets

Answers

Answer 1
The metal iridium, which is similar to platinum, is very rare on Earth's surface but is more common in asteroids and in molten rock deep within the planet.

Related Questions

A complete carbohydrate is a macromolecule is it a large or small molecule

Answers

Answer: Term Meaning

Monomer A molecule that is a building block for larger molecules (polymers). For example, an amino acid acts as the building blocks for proteins.

Polymer A large molecule made of repeating subunits (monomers). For example, a carbohydrate is a polymer that is made of repeating monosaccharides.

Explanation:

Explain how asexual reproduction works. what organisms undergo asexual reproduction?

Answers

Answer:

Asexual reproduction is a type of reproduction that does not involve the fusion of gametes or change in the number of chromosomes. The offspring that arise by asexual reproduction, either from a single cell or from a multicellular organism, inherit the genes of their single parent.

Answer:

Asexual reproduction is a type of reproduction that does not involve the fusion of gametes or change in the number of chromosomes. The offspring that arise by asexual reproduction, either from from a single cell or from a multicellular organism, inherit the genes of their single parent.

(it what it says on web.)

Explanation:

small fish find shelter amongst the branching coral.
How does this make the reef a hearty food web?​

Answers

Answer:

uhmmm going out on a limb probably because they can get trapped in the coral

Which material would get electrons from the source to the load the fastest

Answers

Answer:

However, graphene has far fewer electrons than copper, so in graphene the electrical current is carried by only a few electrons moving much faster than the electrons in copper." In semiconductors, a different measure, mobility, is used to quantify how fast electrons move.

Answer:

D

Explanation:

D

why are fossil fuels considered finite?

Answers

Answer:

A finite resource is something that can only be consumed once without possibility of being recycled for re-use. Because fossil fuels are burned, they cannot be reused and are therefore a finite resource.

Explanation:

What is an allele frequency?

Answers

Answer:

the meaning of allele frequency is representing the incidence of a gene variant in a population

Explanation:

Humans drill wells into Earth's crust to draw out groundwater for drinking and
irrigation of crops. Which spheres are interacting? *
O
Atmosphere, biosphere, and hydrosphere

O Biosphere, hydrosphere, and geosphere

Geosphere, hydrosphere, and atmosphere

Atmosphere, biosphere, geosphere, and hydrosphere

Answers

Answer:

Biosphere, geosphere, hydrosphere

Explanation:

Where do volcanoes usually form?
A. within 10 miles of the ocean
B. between Earth's mantle and core
C. at fault lines between tectonic plates
D. within the boundaries of the United States

Answers

Answer:

c. at fault lines betwern tectonic plates

nvm i got it but take some points by saying this question what are you thankfulll for

Answers

Answer:

I am thankful for my-

-friends

-family

-clothes

-food

-education

-shelter

question 1. The construction of the Temple took seven years.
False True? question 2
Solomon sinned by allowing the corruption of God's people in the worship of idols.

True
False

Answers

1.) True .... 1 Kings 9:10 says it took Solomon 20 years altogether to build the Temple and his royal palace; the Temple itself was completed in 7 years

2.) True .... God hated it he would never have allowed it ....

Answer:

Question 1 true

question 2 true

Explanation:

A section of one DNA strand has the sequence ACC GAG GTT. What is the sequence of the strand it binds to?

Answers

Answer:

UGGCUCCAA

Explanation:

Basically when you transcribe DNA into mRNA, you find the complementing base pair, for example if G is written in the DNA, the mRNA would show C, and if an A was in the DNA, a U would be shown. It is NOT THYMINE in RNA!! This changes to Uracil in RNA, and that is VERY important. The reason why it is flipped is because of the tRNA. So 3 mRNA nucleotides make a codon, and the tRNA are also in sets of 3, but are called anticodons. The tRNA is complementary to the mRNA strand, AKA the same as the DNA strand except with Uracil instead of Thymine. This is because Thymine breaks down in the presence of Oxygen and so is replaced by Uracil.

Which organism is most closely related to the fish?
A lamprey
B mouse
C frog
D shark

Answers

Answer:

B, mouse Bc if you look at the cladogram the mouse line is the only one touching the fish line, therefore it would be most closely related

Answer:

B, mouse

Explanation:

Digestion of ___ begins in the stomach. Select one: a. starch and proteins b. starch and triglycerides c. triglycerides and proteins d. starch and all other oglio-orpolysaccharides

Answers

Answer:

c.triglycerides and proteins

C aka triglycerides and proteins

Use the diagram below to help you to choose ALLL the CORRECT answers for the question: What are the differences between Meiosis i and Meiosis II?
(MULTIPLE CHOICE)

A In Metaphase I and Metaphase II the chromosomes line up differently because there are a different number of copies


B Telophase and cytokinesis do NOT happen in Meiosis II


C After Meiosis II the 4 daughter cells undergo cell specialization to become eggs or sperm, which does not happen after Meiosis I


D In Prophase I the chromosomes crossover, in Prophase II they do not crossover

Answers

Answer:

a

Explanation:

Control and Data

a tentative, testable scientific explanation

useful for determining the effect of the independent variable

Answers

Answer:

cacacacacacacacacacacacacacacaca

Answer:

kkdm

Explanation:

kmlnui

How might global climate change effect iguana populations?

Answers

Answer:

Since iguanas are cold blooded animals and can not regulate their own body temperatures, once temperatures reach 40° they become immobilized and they cant move, so if it is cold they will die.

A liquid has a ph of 12. It is... A. an acid B. a base C. neutral

Answers

Answer:

the answer is B) base

Explanation:

What process lead to biological nitrogen fixation?

Answers

The Rhizobium or Bradyrhizobium bacteria colonize the host plant's root system and cause the roots to form nodules to house the bacteria. The bacteria then begin to fix the nitrogen required by the plant.

SOMEBODY PLEASE TELL ME THE ANSWER TO THIS QUESTION HURRY I ONLY HAVE 41 MINITES LEFT TO TAKE THID TEST!!!!!

Answers

Answer:

What's the question?

Explanation:

Which object did New Horizons observe more closely than any other spacecraft in 2015?
-Mercury
-Venus
-Neptune
-Pluto

Answers

Answer is D pluto

Two days later, with about four months remaining before its close encounter, New Horizons finally became closer to Pluto than Earth is to the Sun. Pictures of Pluto began to reveal distinct features by April 29, 2015, with detail increasing week by week into the approach.

The difference between PCR and real-time PCR is thatA. real-time PCR can measure the amount of DNA amplified as the reaction proceeds, while standard PCR cannot.B. real-time PCR can amplify DNA a billion-fold within just a few hours, while standard PCR cannot.C. real-time PCR can determine the DNA sequence, while standard PCR cannot.D. real-time PCR uses DNA polymerase, while standard PCR does not.

Answers

Answer:

The correct answer is A. real-time PCR can measure the amount of DNA amplified as the reaction proceeds, while standard PCR cannot.

Explanation:

PCR (Polymerase Chain Reaction) is a molecular biology technique. Conventional PCR and real-time PCR are diferent types of PCR, and are both used to exponentially amplify DNA molecules. In both types, a polimerase enzyme is employed to sinthesize DNA copies. The main difference is that conventional PCR is qualitative whereas real-time PCR is quantitative. So, real-time PCR permits not only to detect and amplify DNA but also permits to perform a quantification of the target DNA. This is accomplished by measuring a fluorescence signal - which is directly the amount of DNA amplified- during the course of the reaction.

Why do people, animals, and all other organisms do cellular respiration?
O To make food/glucose for themselves. As a byproduct they make the oxygen that we need.
O To make carbon dioxide and water that animals can use.
O To make ATP (cell energy). Carbon dioxide and water are also produce as byproducts.
To make oxygen, carbon dioxide, and glucose for themselves.

Answers

Answer:

C

Explanation:

To make ATP(adenosine triphosphate), cell energy. Carbon dioxide and water are also a byproducts

A rabbit eats some grass. A fox eats that rabbit. A wolf comes along and eats the fox. What is this an example of:
decomposers
food chain
abiotic factor
fossil record​

Answers

that’s the food chain
your welcome

Please answer will give brainliest.

Answers

Answer: the box will not move because balanced forces are acting on it

Explanation: there is a box in the middle and on either side is the same weight box pushing against either side of the initial box in the center with an equal force of 10N!

I hope I helped and I’m sorry if it’s wrong!

Type the word that appropriately completes each statement.
All fish reproduce sexually, but fertilization may occur in one of two ways.
In__________
fertilization, the female fish releases eggs in the water or on a surface. The male fish spreads
sperm over the eggs to fertilize them.
In__________
fertilization, the eggs are fertilized inside the female's body. The young develop there until the
female gives birth.

Answers

exExplanation: external internal

Hello, 3Coli here!

Here is your answer:

In  external fertilization, the female fish releases eggs in the water or on a surface. The male fish spreads sperm over the eggs to fertilize them.

In internal fertilization, the eggs are fertilized inside the female's body. The young develop there until the female gives birth.

Hopefully, this helps! :D

Ask your question below!

Which water conservation strategy is being used when a household uses eco-friendly cleaning products?

A:Reusing and recycling
B: limiting consumption
C: pollution prevention
D: eliminating losses
Need help ASAP

Answers

Answer:

Explanation:

Answer:

C: pollution prevention

Explanation:

Just took the test

What is the correct order for the levels of organization and living systems from the simplest to the most complex

Answers

Answer:

organelle, cells, tissues, organs, organ systems, organisms, populations, communities, ecosystem, and biosphere

Explanation:

The biological levels of organization of living things arranged from the simplest to most complex



I’ll give brainlist if it’s outstanding

How do parachutes work?

Two paragraphs

Use all these terms in your paragraph: Gravity, Acceleration, terminal velocity, force, air resistance.



Help plssss

Answers

Answer:

Parachutes are made of light but strong materials to keep yyouin the air and have a safe landing :)

Explanation:

anyone help please
need answer immediately​

Answers

Answer:

1. It's difficult to find out if someone is blood doping because the body has red blood cells. First the doctors get blood samples. Because the body constantly produces new blood, the blood that was stored shows that it is old with the blood samples it shows that there are some new and some old blood cells, which is how you can tell if they are doping.

2. Hemoglobin is a protein that is produced by the body that carries oxygen in the red blood cells the more red blood cells the more hemoglobin you have. Ex; If the athletes have a high level of hemoglobin on the day of the race than it had been days or weeks before, to shows that the athlete was blood doping.

3. It can help the body produce more blood cells to carry more oxygen (get more energy) and the body can get used to that kind of high altitudes and climates. Which leads to you getting even more energy at lower altitude levels.

onsider a scenario where a native plant population is growing at it's carrying capacity in a community. The seed of an invasive species is brought in by a squirrel, which then germinates, grows and reproduces resulting in the establishment a population of this invasive plant species. The invasive species has very similar niche as the native plant species. How do you predict the invasive plant population to be affected by the presence of this native species

Answers

The given question is incomplete, the complete question is:

Consider a scenario where a native plant population is growing at it's carrying capacity in a community. The seed of an invasive species is brought in by a squirrel, which then germinates, grows and reproduces resulting in the establishment a population of this invasive plant species. The invasive species has very similar niche as the native plant species. How do you predict the native plant population to be affected by the presence of this invasive species?

The invasive species fitness will be limited by the native plant species

The native plant carrying capacity will go down, relative to that prior to the invasive species arrival

There will be no change to the native plant population

The invasive species will grow unchecked and exponentially

No listed answer is correct

Answer:

The correct statement is the fourth one, that is, the invasive species will grow exponentially and unchecked.

Explanation:

The fitness of the invasive species will not get restricted by the native species. Though the opposite takes place as the original niche of the local species does not possess the natural predator for the invasive species. Therefore, invasive species emerge fitter and reproduce exponentially without population control.

The carrying capacity of the native species will not go down before the arrival of the invasive species, however, will go down post its arrival.  

As the invasive species has no natural predators, one can witness a substantial reduction in the population of the local plant population. The invasive species will utilize the niche of the local plant, therefore, resulting in the reduction of the native species population, as they have share habitat, food resources, and other natural resources.  

It is correct that the invasive species will grow without any control. An outbreak of invasive species generally takes place due to the absence of its natural predators in the ecosystem at the time of its introduction. Hence, the correct statement is the fourth one.

Invasive species establish in a new area, overgrow, and negatively interact with native species. The correct option is  4). The invasive species will grow unchecked and exponentially

-----------------------------------

Let us firts reviw some framework.

When talking about dispersion, we refer to the change in a species' range or distribution area.

When species move and establish in a new area, out of their original distribution range, they might be considered exotic or invasive, according to their

reproductive rate,

population growth, and

interaction with native species.

The introduction of invasive species has ecological, economic, socio-cultural consequences.

Once an invasive species has been established, it overgrows.

In the new areas, these species have less environmental pressure and better conditions than in their origin area -fewer predators, more resources, better nitches-.

These factors favor their establishment because they are adapted to surviving under harder conditions.  

They interact with native species by competing for resources such -water, place, radiation, exposure, shelter, food, etcetera-.  

They can also become significant predators of native species, consuming a wide diversity of prey items, and in many cases, there are no native species that may prey on them.

They provoke significant damages in the structure of native ecosystems, causing severe damage in endemic species.

They produce ecological imbalances in the trophic chains and the dynamics of communities. Invasive species are uncontrollable.

As they expand, they can also affect human in an economic manner and has socio-cultural effects. Many invasive species might cause crops loss by eating cultures. They attack farm animals. They affect buildings and other structures or ships by eating wood. They might even attack humans and cause health problems.

According to this information, we can answer the question.

We need to predict how NATIVE species are affected by INVASIVE species.

The options are,

1) The invasive species fitness will be limited by the native plant species

When talking about invasive species, this is not an option. Invasive species always affect the fitness of native species. So this option is not correct.  

2) The native plant carrying capacity will go down, relative to that prior to the invasive species arrival

The carrying capacity will still be the same. But resources availability will decrease faster because both species have the same requirements. They compete for the same resources. This option is not correct.

3) There will be no change to the native plant population

The will occur changes for the native population for sure. It will be affected by the presence of invasive species. So this option is not correct.  

4) The invasive species will grow unchecked and exponentially

Invasive species population will express an uncontrol exponential growth during its establishment phase.

This plant species find the perfect conditions to reproduce and increase its population size.

It finds available space, no predators, water and nutrients availability, proper light exposure, among others.

They can successfully compete with native species, displacing them and getting more space.  

THIS IS THE CORRECT OPTION

5) No listed answer is correct

Not correct

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