HELP PLS ASAP

Which of the following is an example of an ecosystem?

Choose the correct answer.


a. an oyster

b. a school of fish

c. fish and sharks

d. the open ocean

Answers

Answer 1

Answer:

d

Explanation:

Answer 2

Answer:

D. The Open Ocean........


Related Questions

Three of the four main stages of the cell cycle occur during which phase of mitosis?

Answers

Answer:

metaphase, anaphase, and telophase.

Explanation:

Mitosis takes place in four stages: prophase (sometimes divided into early prophase and prometaphase), metaphase, anaphase, and telophase

PLEASE HELP - Practice Selecting and Reading a Value on a Micropipette

Answers

Answer:

See email again. I am working on it.

An individual carries a heterozygote (two diff alleles on same gene) which will be located:

A) On the same spot on two sister chromatids
B) On the same spot on the same chromosome
C) On different spot on the same chromosome
D) On the same spot on the two homologous chromosomes carrying that gene
E) On different spots on the two homologous chromosomes carrying that gene

Answers

Answer:

B) On the same place on the same chromosome.

Explanation:

Both alleles are located on the same chromosome and present at the same place because genes come in pair. Each pair of gene is located at a specific place on a chromosome. If the two alleles present at a specific location are similar to each other, it is called homo-zygous while on the other hand, if both alleles are different from one another, they are considered as hetero-zygous.

which of the following is NOT a way that new alleles or traits can be brought into a population?

1) Mutations

2) Overpopulation

3) Genetic Drift

Answers

overpopulation , because it’s overpopulated with stuff that’s already there

5. The sequence of nitrogen bases on a portion of a strand of DNA is ATGCAA. Which
sequence best represents the portion of the messenger RNA strand that encodes this
information?
A TAGOTT
B. UAGOUU
CAUBCAA
D. UAOGLU
ace

Answers

Definitely the answer is B

UAGOUU is a messenger RNA strand that encodes this information.

What is Messenger RNA?

Single-stranded RNAs of the type known as messenger RNA, or mRNA, are used to make proteins. mRNA is created during transcription from a DNA template.

The function of mRNA is to transport protein information from DNA in the cell's nucleus to the cytoplasm (watery center), where the machinery responsible for producing proteins reads the mRNA sequence and converts each three-base codon into an amino acid that will eventually create a protein.

mRNA, or messenger RNA. Therefore, mRNA is actually a type of nucleic acid that aids in the cellular machinery's ability to read the human genome, which is encoded in DNA.

Therefore, UAGOUU is a messenger RNA strand that encodes this information.

To learn more about mRNA, refer to the link:

https://brainly.com/question/12903143

#SPJ2

Most plants have different colors in the fall because ________.

chlorophyll production slows

chlorophyll is the main pigment and absorbs green light
carotene production slows

carotene is the main pigment and reflects green light

Answers

The answer is a) chlorophyll productions slows

need help asap!!!!!!!!!

Answers

B

Explanation:

Due to that is the answer to the question

4. Why do total solar eclipses not happen in the same locations?

Answers

Answer: Eclipses do not happen at every new moon, of course. This is because the moon's orbit is tilted just over 5 degrees relative to Earth's orbit around the sun. ... After this interval, the relative positions of the sun and moon relative to a node are nearly the same as before.

Explanation:

Answer:

Eclipses do not happen at every new moon, of course. This is because the moon's orbit is tilted just over 5 degrees relative to Earth's orbit around the sun. For this reason, the moon's shadow usually passes either above or below Earth, so a solar eclipse doesn't occur.

Explanation:

Air and water quality are made worse by urbanization. true or false​

Answers

True!!

Urbanization causes a lot of pollution, which can ruin air and water quality.

HELP PLS I WILL GIVE LOTS OF POINTS pls answer good and i will give brainliest and give more points if its correct
After analyzing the DNA of a colony of bacteria, a scientist concludes that the colony was made of 3764 individual bacteria. For the genetic trait “B,” two alleles are present, B and b. In the colony, there were 4712 occurrences of “b” and 2816 occurrences of “B.”

5. What is the frequency of the B allele? (First, add together the number of b and B to find the total number of alleles. Next, divide the number of B alleles by the total number of alleles.)


6. What is the frequency of the b allele? (First, add together the number of b and B to find the total number of alleles. Next, divide the number of b alleles by the total number of alleles.)

Answers

Answer: .374 and .626

Explanation:

5. total number of alleles = 4712 + 2816 = 7528

       frequencey of B allele = B allele / total number of alleles --> 2816/7528 = 0.374                

             

6. total number of alleles =  4712 + 2816 = 7528

   freq of b allele = b allele/total number of alleles --> 4712/7528 = 0.626

We can confirm our answer as correct because if we add up the answers to 5 and 6 we should get one:

0.374 + 0.626 = 1

Which do you think is easier to identify on a karyotype - changes in chromosome number or in chromosome structure? Explain your answer.

Answers

number because a normal karyotype has 22 autosomes and 1 pair of s€x chromosomes

(sorry if I'm wrong)

The correct answer is that they can identify on a karyotype - changes in chromosome number easily.

In addition to adjustments in chromosome variety, karyotypes also can screen greater diffused adjustments in chromosome structure. In effect, the ordinary banding sample of a chromosome gives a "bar code" that may be translated right into a map of the chromosome.

What is the role of karyotype?

A karyotype is a check to discover and compare the size, shape, and variety of chromosomes in a pattern of frame cells. Extra or lacking chromosomes, or extraordinary positions of chromosome pieces, can reason troubles with a person's growth, development, and frame functions.

Hence concluded that karyotype can identify changes in chromosome number.  

To learn more about karyotype  refer to the link :

https://brainly.com/question/16665635

Hi please help me with my science work!

true or false

All living things are made up of cells.
A:true
B:false

Cells were first identified in the early 1400s.
A:true
B:false

the invention of the hand lens helped scientists discover cells.
A: true.
B:false

Cells have similar functions such as extracting energy from food, growing, reproducing, and responding to the environment.
A:true
B:false

One characteristic of any organism is that it must be composed of at least one cell
A:true
B:false

cells are considered the building blocks to life.
A:true
B:false​

Answers

Answer:

1. A  

2. B, i think it was actually 1665

3. A

4. A  

5. A

6. A  

haha these could be wrong but i hope i helped!

Explanation:

During which the phase of the cell cycle does cell division occur

Answers

Answer:

interphase I think

Explanation:

I hope I helped ;)

Which of the following statements correctly describes the genetic material inside a virus?


Has DNA or RNA, never both

Never has DNA

Never has RNA

Has both DNA and RNA

Answers

Has DNA or RNA, never both

Going from a gas to a liquid is called condensation.

True

False

Answers

Answer:

Going from a gas to a liquid is called condensation - TRUE.

WILL GIVE BRAINLIST

Which of the following best describes loess?

A. Sandy soil

B. Particles deposited by water

C. Deep and rich soil

D. Soil which is not prone to erosion

Answers

Answer:

There is only 1 answer

Explanation:

A. Sandy soil will be able to!

B: Yes it is possible for loess to occur but its pretty rare

C. Deep and rich soils are soils that are soaked with water and uses thick substances so no

D. Soils that are not prone to erosion so they can but in some cases they could erose

but loess is caused by a soil that was produced by rocks and sometimes when they grind and break down they turn into soil such as sandy, clay and even loamy sand brushed over by wind

Like such as a man made grand canyon is made of loamy sand soil that is absorbed by the rocks by rain water and soil turning the rocks into grand canyons

by best bet is sandy soil, particles deposited by water.

I tried my knowledge ;-;

Which forms the basis of modern DNA profiling? amplifying RFLPs with PCR digesting DNA with restriction enzymes to produce RFLPs amplifying STR loci using PCR sequencing the entire DNA from an evidence sample​

Answers

Answer:

Amplifying STR loci using PCR

Explanation:

What are two major health issues ?

Answers

Answer:

The first and third one

Explanation:

I'm pretty sure it is let me know if I'm wrong

What is a DNA
what does DNA stand for

Answers

Answer:Deoxyribonucleic acid is a molecule composed of two polynucleotide chains that coil around each other to form a double helix carrying genetic instructions for the development, functioning, growth and reproduction of all known organisms and many viruses. DNA and ribonucleic acid are nucleic acids

Explanation:

Explanation:

DNA is a double helical structure with two polynucleotide chains connected by hydrogen bonds .

DNA=Deoxyribonucleic Acid

What is nonrenewable and renewable mean?

Answers

Answer:

renewable is one that can be used repeatedly and does not run out because it is naturally replaced. A renewable resource, essentially, has an endless supply such as solar energy, wind energy, and geothermal pressure

Nonrenewable is a natural substance that is not replenished with the speed at which it is consumed. It is a finite resource. Fossil fuels such as oil, natural gas, and coal

*Urgent*

2. Which phrases best identify characteristics of
asexual reproduction?

A) one parent, union of gametes, offspring similar
to but not genetically identical to the parent

B)one parent, no union of gametes, offspring
genetically identical to parents

C) two parents, union of gametes, offspring
similar to but not genetically identical to
parents


D) two parents, no union of gametes, offspring
genetically identical to parents

Answers

Answer:

The correct answer is B.

Explanation:

There is only one parent cell, hence why it is called asexual reproduction. As there is only one parent, all of the DNA is genetically identical in its offspring. I hope this helps :)

Answer:

B)one parent, no union of gametes, offspring

genetically identical to parents

A younger neighbor told you that organs are large structures that keep us alive. How would you support their claim and explain the importance of cells keeping us alive?

Answers

Answer: A cell is defined as the smallest functional units of the body

Explanation:

These cells are grouped together to form tissues, each of which has a specialised function, example blood, muscles, bone. Different tissues are grouped together to form organs with a special function. For example heart is an organ made up of muscles tissue, connective tissue, nervous tissue and vascular tissue. These tissues work in a coordinated manner and enable the heart to carry out the broader function of pumping blood continuously.

While organs are grouped together to form systems, each of which performs a particular function that maintains the body Internal environment and contribute to the health of the individual. For example the digestive system is responsible for taking in, digesting and absorbing food which involves a number of organs, including the stomach and intestines.

Therefore the statement that 'organs are large structures that keeps us alive" is a correct claim.

Which describes step three of a muscle contraction?
The sarcomere lengthens.
The space between sarcomeres increases.
Actin and myosin are partially overlapped.
Actin and myosin are completely overlapped.

Answers

Answer:

Actin and myosin are completely overlapped

Answer:

Answer is D. Actin and myosin are completely overlapped.

Explanation:

Right on EDG.

14) What are Mark's biggest challenges in trying to get to the Ares IV launch site? In the movie Martian

Answers

Answer:

Limited water, food and more distance to the site.

Explanation:

Mark's biggest challenges in trying to get to the Ares IV launch site was limited food and water for the journey and to reach the site on time otherwise his crew can't reach to him. For this purpose Watney begins the 90-sol journey to Schiaparelli, where the MAV for Ares IV has been pre-positioned. The distance is about more than three months and there is no fast moving vehicle which provide quick transportation and he also have limited water and food supply so these are biggest challenges for Mark..

In the picture below identify an Abiotic factor

Answers

abiotic factor means no living so your answer is water :)

Which change in a cell could be inherited by the next generation

Answers

Mutations are the alterations in the sequences of DNA caused due to mutagens. This is how genetic disorders could be inherited and passed to the next generations.

is somebody willing to help me with my missing assignments I have 7!

THEY NEED TO GET DONE ASAP

Answers

Sure what are they
sheesh u have 7 missing assignments i have like 15 or so lol

This diagram represents some biochemical reactions involved in a cellular process. Which type of molecule is produced by this type of
process?

A. Carbohydrates
C. Nucleic Acids
B. Lipids
D. Proteins

Answers

It’s C. nucleus acids

CAN SOMEONE ANSWER RN PLZ List 3 characteristics that all living things share.

Answers

Answer:

there all made of cells

grow and reprorduce

need energy to live

>> how is atp produced in the mitochondria?

Answers

Answer:

Most of the adenosine triphosphate (ATP) synthesized during glucose metabolism is produced in the mitochondria through oxidative phosphorylation. This is a complex reaction powered by the proton gradient across the mitochondrial inner membrane, which is generated by mitochondrial respiration.

Explanation:

- Eijiro <3

Answer: Most of the adenosine triphosphate (ATP) synthesized during glucose metabolism is produced in the mitochondria through oxidative phosphorylation. This is a complex reaction powered by the proton gradient across the mitochondrial inner membrane, which is generated by mitochondrial respiration.

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