Explain why the barn owl is considered a keystone species

Answers

Answer 1

Answer:

bc it can help rats stay away and scares other animals

Explanation:

thank me later

Answer 2
a keystone species is one that
helps stabilize the populations of the other species in the community
Owls are fascinating creatures. They are beautiful birds with big eyes that make iconic hooting sounds, but they are, above all, incredible hunters. Because of this they have large impacts on the ecosystems in which they live, but their position near the top of the food chain makes them sensitive to changes that occur within i

Related Questions

This gene segment codes for a peptide in humans.
GCTGTGTGAGGCAGA
What is the expected mRNA sequence when the gene segment is
transcribed in transgenic mice?

Answers

Answer:CGACACACUCCGUCU

Explanation:

The expected mRNA sequence when the gene segment is transcribed in transgenic mice is GCUGUGUGAGGGCAGA

What is mRNA (messenger RNA)?

Responsible for transporting the information transcribed from the DNA chain. Information is transported through codons, which are sequences of three nucleotides, for example, AUG – Adenine, Uracil and Guanine.

With this information, we can conclude that the mRNA sequence expected when the gene segment is transcribed in transgenic mice is GCUGUGUGAGGGCAGA

Learn more about mRNA in brainly.com/question/12903143

what are the difference of meteor and meteorides ?​

Answers

Answer:

When meteoroids enter Earth's atmosphere (or that of another planet, like Mars) at high speed and burn up, the fireballs or “shooting stars” are called meteors. When a meteoroid survives a trip through the atmosphere and hits the ground, it's called a meteorite.

if fossils are in many different places, but only lived for a short period of time what are they considered

Answers

Answer:

index fossils

Explanation:

Answer: An ideal index fossil

Explanation: An ideal index fossil lived during a short period of time, was geographically and environmentally widespread, and is easy to identify. Some of the most useful index fossils are hard-shelled organisms that were once part of the marine plankton.

I hope this helps =3

What is the purpose of the part of the female reproductive system highlighted
below?
O A. Developing a fetus
B. Collecting sperm
C. Storing eggs
D. Transporting eggs

WILL MARK BRAINLIEST!!

Answers

Answer:

the picture isnt really clear but i guess B

Explanation:

just to explain the collecting of sperm happens in the oviduct

the developing of a fetus happens in the uterus

The female reproductive system includes the glands and organs that produce the female gamete, the egg. The highlighted part in the diagram stores eggs. Thus, option C is correct.

What are the parts of the female reproductive system?

The female reproductive system has various organs like ovaries, fallopian tubes, vagina, uterus, accessory, and other external organs. They are involved in the production and storage of eggs or the ovum.

The ovaries are the main organs that are two in number and oval-shaped structures, located on either side of the uterus, and produce ovum and hormones, estrogen and progesterone.

During the menstrual cycle, one of the ovaries releases the ovum in the fallopian tubes that may get fertilized or get shaded with the blood and tissues. The egg is produced through the process of oogenesis in the ovaries.

Therefore, the highlighted part is the ovary that stores the egg.

Learn more about the female reproductive system here:

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In prokaryotes, the processes of transcription and translation are said to be coupled, which means that: the primary transcript is immediately converted into mRNA. they are connected in space and time. the primary transcript is the mRNA. the primary transcripts carry the genetic information for the synthesis of several different proteins. several ribosomes bind to the same primary transcript.

Answers

Answer:

The correct answer is ''they are connected in space and time.''

Explanation:

Transcription consists of the copying of 1 DNA chain to give an RNA chain, thanks to the complementarity of bases. The strand that is copied is known as the template strand or the transcribed strand. This chain will obviously be complementary to the RNA. A transcription unit is known as that DNA that gives rise to an RNA molecule through the transcription process. For transcription, the presence of RNA polymerase is essential, since this enzyme is in charge of synthesizing RNA, thanks to its complementarity with the template chain. RNA polymerase initiates transcription when it binds to the promoter. Transcription and translation in prokaryotes are simultaneous and from a single gene many copies of RNA can be transcribed simultaneously, which are simultaneously translated, unlike in eukaryotes where the nuclear membrane separates transcription and translation in space and time.

Diabetes is a disease characterized by the inability to break down sugars. Often a person with diabetes has a defective DNA sequence that messes up the code for making insulin. Suppose a person has a mutation in their DNA, and the first triplet for the gene encoding insulin is CCC (instead of CCA). Determine what amino acid the new DNA triplet codes

Answers

Answer:

The new CCC codon codes for proline, while the original CCA codon also encodes for proline  

Explanation:

A synonymous substitution is a mutation produced by the substitution of one nucleotide for another in an exonic gene segment which doesn't modify the original amino acid in the protein sequence. Moreover, a silent mutation is any alteration in the nucleotide sequence that does not produce an observable effect on the organism's phenotype. The example above describes a synonymous substitution because the new codon (CCC) also codes for the same proline amino acid as the original non-mutated codon, thereby the resulting protein sequence remains unchanged. Consequently, in this case, mutations associated with diabetes are located at other gene regions. The genetic code is degenerate because different codons can code for the same amino acid.

PLEASE HURRY!!!!
When you have corresponding DNA sequences that comes from separate parents; one
from the mother and the other coming from the father... these are called _______________
That is why we have a pair for each chromosome.

Answers

Answer- Homologous (hope this helps)

Consider one such cell where the magnitude of the potential difference is 40 mV, and the inner surface of the membrane is at a higher potential than the outer surface. A sodium ion (Na ) is initially just outside the cell membrane (initially at rest). How much work (in J) is required for a cell to absorb the ion, so that it moves from the exterior of the cell to the interior

Answers

Answer: W = 6.4x10⁻²¹J

Explanation: Work is the energy transferred to or from an object due to the application of a force along a displacement.

The ion Na is gaining energy to move from a lower potential to a higher one.

For this to happen, the work done is calculated as

[tex]W=q.\Delta V[/tex]

in which

W is work in Joules (J)

q is charge in Coulomb (C)

[tex]\Delta V[/tex] is potential difference in Volts (V)

The ion Na has one positive charge. In coulombs, the charge is

q = 1.6x10⁻¹⁹C

The potential difference in Volts is

[tex]\Delta V[/tex] = 40x10⁻³ or 4x10⁻²V

Calculating

[tex]W=q.\Delta V[/tex]

W = 1.6x10⁻¹⁹. 4x10⁻²

W = 6.4 x 10⁻²¹ J

The work done to move an ion of sodium from the exterior to the interior is 6.4 x 10⁻²¹ J.

please pick the right option

Answers

what book is this ? what question is this for ?

what roles do photosynthesis and cellular respiration play in the formation of carbon-based compounds

Answers

Answer:

Cellular respiration and photosynthesis are important parts of the carbon cycle. The carbon cycle is the pathways through which carbon is recycled in the biosphere. While cellular respiration releases carbon dioxide into the environment, photosynthesis pulls carbon dioxide out of the atmosphere.

Explanation:big brain

Help&explain

Don’t use for points or will be reported and I’ll take the points back

Answers

Answer:

They have lungs.

Explanation:

Reptiles that are currently living have lungs means they breathe through their lungs not like fishes which breathe through gills. They have dry skin and have scales on their skin. Snakes, lizards, turtles are the examples of reptiles. Some reptiles such as sea turtles and penguins are also lives in water, but they come onto land to lay their eggs and comes to the surface breathing.

Describe the contributions made by various scientists to the discovery of the structure of DNA that we have discussed in this class

Answers

Im not in your class so i dont knoww. If your more explanatory i will help

Answer:

Since you didn't list the scientists, what you can do is look up contributions made by "scientist name"

good luck, i hope this helps :)

Please help :(

Imagine yourself as a naturalist. In your travels, you observe the toad and frog

shown here. Write two questions that might arise from these observations.

Answers

Answer:

1. What is the relationship between body shape and the habitat where they are most commonly found?

2. What is the difference between toads having a thicker skin than frogs?  

Explanation:

Toads and frogs are amphibians that belong to the same family, live in lakes, rivers and wetlands and have some similar characteristics. Among their main differences are:

The skin of toads is rougher, drier and rougher. While frog skin is moist and smooth. Frogs live in humid areas, although they can go out to dry land for food. Whereas toads can survive longer on the ground away from moisture, as they have greater water control in the body. Frogs are characterized by long limbs that favor long hopping and swimming. On the other hand, toads have shorter legs. Toads tend to be more rounded, muscular and stocky. Frogs tend to be more slender.Most toads are poisonous. In contrast in frogs, not all species are poisonous.

Given these observations, two questions that may arise could be:

1. What is the relationship between body shape and the habitat where they are most commonly found? This is that frogs have longer legs which helps them to swim and that is why they are more commonly found in water. While toads have shorter legs that even allow them to burrow into the ground, they can survive longer on land.

2. What is the difference between toads having a thicker skin than frogs?  Toads have thicker and more impermeable skin than frogs, which allows them to live in drier places. Also, the blood of the toad is of higher osmotic concentration than water.

Answer: what is the difference between the body’s and the habitat they are in?

Explanation:both have similar habitats and look the same

3. The half-life of carbon-14
is about 5600 years. A
fossil with 1/4 the normal
proportion of C4 is
probably
years
old.

A. 2,800
B. 11,200
C. 22,400

Answers

C. 22,400 (sorry if I get this wrong.)

What are the possible results of breeding a dark brown mouse with a light brown mouse?

Answers

Unfortunately you do not tell us which trait is dominant so we need to assume that dark mice light mice and medium colored are all possible.

Which of the following best compares the cells produced from mitosis to those produced during meiosis?

Answers

Answer:

brbe

Explanation:

vrwververge

Can two species share the same niche? Why or why not?​

Answers

Answer:

No

Explanation:

Because they'd be fighting for the exact same resources

Answer:

The competitive exclusion principle tells us that two species can't have exactly the same niche in a habitat and stably coexist. That's because species with identical niches also have identical needs, which means they would compete for precisely the same resources.

Explanation:

Several genes in humans in addition to the ABO gene (I) give rise to recognizable antigens on the surface of the red blood cells. The Rh marker is determined by positive (R) and negative alleles (r) of gene R, where R is completely dominant to r. The presence of M and N surface markers are controlled by two codominant alleles of gene L (LM and LN). For each mother-child pair, choose the father of the child from among the males in the right column. (Assume that all mothers and fathers are HH.)

Answers

Complete question:

You will find the mother-child pairs and the possible genotypes of the fathers in the attached files.

Answer:

Father 1: IBi LMLN RRFather 2: IBi LMLN RRFather 3: IAIA LMLN RRFather 4: IBi LMLN RRFather 5: IAi LMLN rr

Explanation:

Due to technical problems, you will find the complete explanation in the attached files

1. Light waves continue moving in a straight path until what?
2. What are the three properties of light?
3. Which property occurs when the object seems to have bent & changed directions?
4. What are the two main wave types?
5. Give an example of matter waves.
6. TRUE OR FALSE: You can hear in space.
7. Which waves travel faster, light or sound?

Answers

Answer:

2 frequency intensity wave lenghth spectrum

Explanation:

Using the human species as an example, explain what is meant by a variation of traits.​

Answers

Explanation:

a variation of traits could be a variation of personality traits? everybody is different? what I do know Is that variation can be inherited or environmental which means that you get it from your ancestors through DNA or you get it from the environment around you and your choices eg a tattoo

If mitosis happens in our gonad cells that produce egg or sperm. How will it impact the progeny's chromosome number? Emphasize also the point why is meiosis so very important.


Who understand this

Answers

Explanation:

If gametes were produced instead by mitosis each gamete would be diploid not haploid. During fertilization of diploid gametes, the zygote would become 4n=92. With each new generation the number of chromosomes would double.

When does oxygen uptake in the alveoli increase? Select all that apply. Carbon dioxide in the body decreases. Oxygen in the body decreases. Oxygen in the body increases. Carbon dioxide in the body increases.

Answers

Answer:

oxygen decreases and co2 increases

Explanation: to try to do more gas exchange

Name 3 bee popper traits that represent complete dominance

WHO CAN HELP MEE

Answers

Answer:

Alright let's see here, 1st pair of linked genes and 2nd pair of linked genes. I only know two sorry!

what is the major component of Bones and the proteins that build muscles​

Answers

Answer:

Carbon

Explanation:

Carbon is an essential building block in the bodies of living things. For example, carbon is a major component of bones and the proteins that build muscles. And most organisms use oxygen for their life processes.

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Rates of heritable mutations are lower in multicellular
organisms because only germ cell mutations heritable.
TRUE
FALSE

Answers

the answer is false i am pretty sure
The correct answer is false

What biome is an under water ecosystem chracterized by reef-building corals?

Answers

Answer:

A coral reef is an underwater ecosystem characterized by reef-building corals. Reefs are formed of colonies of coral polyps held together by calcium carbonate. Most coral reefs are built from stony corals, whose polyps cluster in groups.

What does the light red layer between the white lumen and blue lamina propria consist of

Answers

B

Explanation: lymphocytes in the epithelial layer with the villi (light red) and not the ones in the lamina propria at the base of the epithelial cells (blue stain

The light red layer between the white lumen and blue lamina propria consist of - options B. epithelium cells.

A type of connective tissue present under the thin layer of tissues covering a mucous membrane is called the lamina propria.

It is a large layer of connective tissueseparates the innermost layer from a layer of smooth muscle tissue.it s a light red layer barrier between the white lumen and blue lamina made up of epithelium cells.found in the respiratory tract, the GI tract, and the urogenital tract.

Thus, the correct answer is - option B. epithelium cells.

Learn more about epithelium cells:

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What is a dichotomous key

Answers

Answer:

A dichotomous key is a tool that allows the user to determine the identity of items in the natural world, such as trees, wildflowers, mammals, reptiles, rocks, and fish. Keys consist of a series of choices that lead the user to the correct name of a given item. "Dichotomous" means "divided into two parts"

Explanation:

From which molecules do organisms get energy to perform daily activities

Answers

Answer:

Carbohydrates

Explanation:

The result of photosynthesis is the production of sugar molecules knowns as. carbohydrates. carbohydrates are. energy rich molecules which organisms use to carry out daily activities. as organisms consume food and use energy from carbohydrates, the energy travels from. one organism to another.

What Causes The Cycle Of Seasons On Earth?

The Tilt Of Earths Axis?
The Shape Of Earth's Orbit?
The Direction Of Earth's Orbit?
The Distance Between Earth And The Sun?

Answers

                   ∧····║Hello Person║····∧

                                            Your answer should be:

                      A. The tilt of the axis

Earth's tilted axis causes the seasons. Throughout the year, different parts of Earth receive the Sun's most direct rays. So, when the North Pole tilts toward the Sun, it's summer in the Northern Hemisphere

I hope this helps!

⊕If this answer doesn't answer your question or highly displeases you, please tell me in the comments below⊕

I would appreciate a brainliest

Thank you have a wonderful day.

-Juri Davis

The Tilt of Earths axis causes the cycle of seasons on earth and is denoted as option A.

What is Season?

This is defined as a period of the year that is distinguished by special climate conditions.

This is due to the tilt of the earth axis which ensures different varying exposure of the earth to the sun thereby creating different seasons.

Read more about Season here https://brainly.com/question/13661560

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