Biology College


Earth's core is mainly composed of.......
A:iron and aluminum.
B:silicon and hydrogen.
C:iron and nickel.
D:silicon and oxygen.

Answers

Answer 1

Answer:C

Explanation:

Answer 2

Answer:

C:iron and nickel.

Explanation: Vote me Brainliest Thx

Related Questions

What are the three steps scientists take to evaluate a scientific explanation?​

Answers

Make an observation.

Ask a question.

Form a hypothesis, or testable explanation.

Make a prediction based on the hypothesis.

Test the prediction.

Iterate: use the results to make new hypotheses or predictions.

Which is an outer planet?​

Answers

Saturn is an outer planet

need answer ASAP Or I will fail my class so please hurry and give me the answer

The digestive system includes your mouth, esophagus,
stomach, small and large intestines. Identify two ways that
the digestive system works with other systems.

Answers

Answer:

intestine i believe

Explanation:

because i remeber back when i was learning about it

This monarch butterfly has orange wings. Is orange
the genotype or the phenotype? Explain

Answers

Answer:

Phenotype

Explanation:

It's phenotype because a genotype is not a physical trait; a genotype means genes. It's phenotype because it a physical trait you can see. Lets say twins look the same on the outside but on the inside they have completely DNA. This is like how some butterflies look the same with orange wings but one might have a mutation in its genes.

Who was recognized as an honorary member of the social society of London because of his outstanding work and making and using lenses to see tiny organisms?

Answers

Answer: royal society

Explanation: royal society

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Which is one characteristic that is used to identify types of metamorphic rocks?

color
rock size
grain arrangement
type of rock before metamorphosis
------------------------------------------------------------------------------------------------------------------------
In addition to liquid precipitation, which are present when freezing rain occurs?

ice pellets
snowflakes
cold surfaces
warm temperatures
----------------------------------------------------------------------------------------------------------------------
Which describes a condition of the neritic zone?

few organisms
ample sunlight
changing salinity
frigid temperatures

Answers

Answer:

I agree with the other answer.

Explanation:

Answer:

ample sunlight

Explanation:

Which of the following happens when a phosphate-phosphate bond in an ATP molecule
is broken?
Lysosome contents are released in a cell.
Energy is released in a cell.
Water is transported into an animal cell
Light energy is absorbed in a plant cell.

Answers

Answer:

An event that occurs when a phosphate-phosphate bond is broken in ATP is that energy is released in a cell.

Explanation:

Adenosine triphosphate or ATP is the molecule in charge of providing energy to the cell, which is necessary to perform its functions.

The energy contained in ATP depends on the high-energy bonds that bind the phosphate groups to the energetic nucleotide molecule. Through the hydrolysis of ATP, phosphate is separated from ATP, obtaining ADP, and a large amount of energy is released. This energy serves for the cell to perform its metabolic functions.

The other options are not correct because:

Lysosomes act on cellular digestion. Transport of water into the cell occurs by osmosis, through aquaporins. Light energy is absorbed in a plant cell, through photosynthesis.

Robert eats a burger and drinks a milkshake for lunch. As a result, his blood glucose level increases. His body responds by releasing insulin to bring glucose levels back down. Which organ functions to release insulin?

Stomach

Pancreas

Kidney

Adrenal glands

Answers

Your pancreas release insulin

Which of the following best describes giant stars? A. hot, dim stars B. cool,dim stars C. hot ,bright stars D. cool, bright stars

Answers

Answer:

C hot bright stars

Explanation:

they are literally hot burning balls of bright gas

Answer:

It is the answer C

:)

A membrane that allows some molecules to pass through but not others is called a(n)_____ _____ _____

Answers

has a selection function so it selects the substances which to enter or not inside the cell

Which of the following identify as fungi or parts of fungi

Answers

Answer:i have no idea

Explanation:

Please list 3 separate facts about the 2 different types of changes in matter:

Answers

Physical Changes:

Physical changes are processes in which a material changes its physical appearance but not its basic identity.

Physical change is the evaporation of water.

All changes are a state of physical changes

Chemical Changes:

Chemical Changes will experience changes in their basic identity in addition to changes in physical appearance.

Hydrogen burning in air will convert into water. Therefore, hydrogen burning in air involves physical and chemical changes.

During a chemical change one substance is converted into another substance, and this new substance has different characteristics.


Hope this helps you!

How does increased biodiversity increase the stability ot a community

Answers

Answer:It crease more population .

Explanation:

What are the inputs in cellular respiration?

Answers

The inputs are glucose and oxygen and the outputs are water and carbon dioxide.

Answer:

En las células eucariotas la respiración se realiza en las mitocondrias y ocurre en tres etapas que son: 

1.Oxidación del piruvato. 

2.Ciclo de los ácidos tricarboxílicos (ciclo de Krebs) 

3.Cadena respiratoria y fosforilación oxidativa del ADP a ATP. 

La respiración celular podría dividirse en dos tipos, según el papel atribuido al oxígeno: Respiración anaeróbicaRespiración aeróbica:

Explanation:

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What are the steps involved in the process of how mRNA is produced during DNA transcription? (Choose all that apply)
initiation
construction
termination
elongation

Answers

Answer:

initiation

Explanation:

It involves copying a gene's DNA sequence to make an RNA molecule. Transcription is performed by enzymes called RNA polymerase, which link nucleotides to form an RNA strand (using a DNA strand as a template). Transcription has three stages: initiation, elongation, and termination.

Answer:

initiation

termination

elongation

Explanation:

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Which are scentific questions that can be asked about a collection of diffrent ochid types?

Answers

Answer:

Do different colors attract different pollinators.

Explanation:

FIRST RIGHT ANSWER GETS BRAINLYEST OR WHATEVER
Water molecules usually end up as:
a.
Carbon
c.
Nitrogen
b.
Water molecules
d.
Blood

Answers

Answer:

The answer would be C) Nitrogen

Explanation:

Answer:

I think is A

please mark me as brainliest

Some one pls help need done fast

Answers

It’s A.
Foods rich in thiamine (vitamin B1) include beef, liver, beans, nuts and rice. Vitamin B1, also called thiamine, is a B complex vitamin. It is found in many foods and is vitally important to keeping a body operating properly.

do ghosts exist? testable or not testable
​

Answers

Answer:

Not testable

Explanation:

There's really no way you can prove that with a scientific experiement.

Answer:

Not testable

Explanation:

Every scientific question must be testable. There are no scientific tools that can prove ghosts exist. Instead, this question is based on beliefs, opinions, and in some cases - religion. Thus, this is not a testable question, which means it is not scientific either.

Explain how two organisms can have the same
phenotype but different genotypes. Give an example.

Answers

Answer:

2 organisms can have the same physical traits but no matter what, every single living creature has different DNA. Like how twins can look the same but their DNA won't be exact.

Explanation:

What s the point in the vascular system in a plant

Answers

Answer:

Vascular system, in plants, assemblage of conducting tissues and associated supportive fibres. ... Xylem tissue transports water and dissolved minerals to the leaves, and phloem tissue conducts food from the leaves to all parts of the plant.

Explanation:

Please help need it

Answers

Oxygen, a plant doesn’t need oxygen but it produces it through photosynthesis

What are some methods scientists have discovered that can stop a virus from spreading in its host? (Choose all that apply)
destroy the RNA polymerase altogether
prohibit the RNA polymerase from starting initiation
stop the RNA polymerase from moving along the DNA strand.
use antibiotics to destroy the RNA polymerase before initiation

Answers

Answer:

destroy the RNA polymerase altogether

prohibit the RNA polymerase from starting initiation

stop the RNA polymerase from moving along the DNA strand.

These are the correct answers

Explanation:

A virus can be stopped from spreading in its host by destroying the RNA polymerase altogether, Prohibition so the RNA polymerase from the starting initiation, and by stopping the RNA polymerase from moving along the DNA strand. Thus, the correct options are A, B, and C.

What is a Virus?

A virus is a sub-microscopic organism, which is an infectious agent that replicates only when present inside the living cells of an organism by using its replication machinery. Viruses infect all the life forms, from animals and plants to the microorganisms, such as bacteria and archaea.

Viruses can be stopped from spreading in the host body by destroying the RNA polymerase, this RNA polymerase is responsible for the multiplication of RNA from host DNA in an organism. By prohibiting the activity of RNA polymerase from initiating the replication the multiplication of viruses can be stopped. This RNA polymerase moves along the host DNA and forms new strands for the replication purpose.

Therefore, A, B, and C all are correct options.

Learn more about Viruses here:

https://brainly.com/question/13588519

#SPJ5

Please fully explain the answer​

Answers

Answer:

thermal energy to heat our homes; mechanical energy to transport people and things; and electrical energy to power just about every other technology we use.

Explanation:

ahaha<3 still more questions luv

Answers

Answer:

organism, the leopard frog is an organism made up of other tissues and organs.

6
How has human activity negatively affected sea turtle populations?

Answers

Answer:

Because humans liter on beaches and around the world.This can cause sea turtles to eat trash and get trash stuck up there noses.Also when sea turtle lay eggs on the beaches humans tend to step on them and that is a sense of human activity that can affect the sea turtle population.

Explanation:

I really hope this helps.;)

Every living thing is made up of one or more _____​

Answers

Answer:

cells is the correct answer

What makes man more than his body?

Answers

his behavior and his efforts (in my opinion)

Please help ASAP! I’ll mark you brainly



2. Light is captured using__________
the absorbed light is passed along
throughout molecules
and pigments until it is transferred to a single__________.

Answers

Answer:

1st: pigments 2nd: molocule

Explanation:

BIOLOGY HELP, 1 QUESTION

Answers

Answer:

D. glucose, a large sugar

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