When considering ecosystem biodiversity, why would it be dangerous to treat each ecosystem as an isolated environment?
1. each ecosystem has a constant and consistent number of predators
2. rainfall is global occurrence that impacts every ecosystem on the planet
3. environmental conditions appearing in one ecosystem may appear in another
4. there are complex interactions that take place between ecosystems

Answers

Answer 1

Answer:

1

Explanation:

they can never be mixed


Related Questions

49. A test for starch in variegated leaves shows the importance of
A. sunlight
C. water
B. oxygen
D. chlorophyll

Answers

Answer:

D. Chlorophyll

Explanation:

Chlorophyll is important as it allows the plant to convert carbon dioxide and water into glucose.

D. Chlorophyll
Starch is what is needed to make food in plants and while all the other options help in the process of making food, chlorophyll is the green pigment in which plants make their food

Human skin cells are specialized to do what

Answers

Answer:

The primary function of these cells is to create the barrier between you and the rest of the world. Keratinocytes produce the protein called keratin, and by the time the cells have been pushed up from the basement membrane, they are mostly sacks filled with keratin.

Explanation:

Help me guys in science​

Answers

A=4
B=6
C=5
D=1
E=8
F=7
G=2
H=9
I=3

An estuary is _______.
a.
a freshwater biome
b.
an area with a low concentration of minerals and nutrients
c.
characterized by deep water
d.
an ecotone

Please select the best answer from the choices provided
D IS CORRECT

Answers

Answer:

An estuary is _______.

a.

a freshwater biome

Garlic mustard has been introduced to the beetles ecosystem. Describe what would happen to the beetles population as a result and explain why.

Answers

Answer:

It would collapse

Explanation:

Garlic mustard also produces root exudates that inhibit the growth of important soil fungi and leaf chemicals that kill native butterfly larvae that feed on the plant

In addition, invertebrates and other consumers that rely on these natural plant species for food are harmed by the spread of this invasive "weed". Garlic mustard also produces root exudates that inhibit the growth of important soil fungi and leaf chemicals that kill native butterfly larvae that feed on the plan

Garlic mustard is an invasive plant species that is known to negatively impact native plant populations in ecosystems.

What is invasive plant?

An invasive plant is a non-native plant species that is introduced to an ecosystem and has the ability to spread and negatively impact native plant and animal populations.

Garlic mustard is known to release chemicals that inhibit the growth of other plant species, including some that the beetles may rely on for food.

This could lead to a reduction in food availability for the beetles, which may cause a decline in their population.

Additionally, if the beetles are not adapted to feeding on garlic mustard, they may not be able to digest or utilize the plant efficiently, leading to further declines in population.

Thus, the impact of garlic mustard on the beetle population will depend on the specific beetle species and the extent to which they rely on native plant species for food.

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10 Which of the following are examples of natural selection?
SELECT ALL THAT APPLY
A Domesticated dog breeds
B Giraffes developing longer necks over time
A non-poisonous snake mimics a poisonous snake
D Breeding two racehorses that are fast and strong
E Genetically modified soybean
F Galapagos finches choosing mates with stronger and longer beaks
G Allowing only the cows that produce the most milk to reproduce
H Peppered moths choosing mates with darker colors

Answers

Answer:

B Giraffes developing longer necks over time

A non-poisonous snake mimics a poisonous snake

F Galapagos finches choosing mates with stronger and longer beaks

H Peppered moths choosing mates with darker colors

Explanation:

Hope this helps

The examples of natural selection are as follows:

Giraffes develop longer necks over time.A Non-poisonous snake mimics a poisonous snake.Galapagos finches choose mates with stronger and longer beaks.Peppered moths choose mates with darker colors.

Thus, the correct options for this question are B, C, F, and H.

What is Natural selection?

Natural selection may be defined as the methodology through which organisms that are better adapted to their environment tend to survive and reproduce more than those less adapted to their environment. The concept of Natural selection was first proposed by Charles Darwin.

According to the question, due to the requirement of long necks in order to get food from longer trees, Giraffe develops longer necks. In order to protect themselves from predators, a non-poisonous snake mimics a poisonous snake.  

On Galapagos island, if there were variations in the finches of the bird, they get a variety of food resources in order to get more nutrients and energy for survival and reproduction.

Therefore, the correct options for this question are B, C, F, and H.

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Fossil fuels deep in the earth act as a carbon reservoir, storing it for millions 1 point
of years. What happens when humans extract and burn fossil fuels for
energy?
Carbon Dioxide levels increase in the atmosphere
Oxygen levels in the atmosphere decrease
There is more oxygen in the atmosphere
Carbon Dioxide is removed from the atmosphere
What elements make up most of the earth's.

Answers

Answer: By burning fossil fuels, people are changing the carbon cycle with far-reaching ... The rest is in the ocean, atmosphere, plants, soil, and fossil fuels. ... Graph of oxygen isotope ratios in the deep ocean for the past 67 million years. ... The increased temperature results in higher evaporation rates and a wetter ...

Explanation:

Cuando una celula se va a dividir, la cromatina se contrae y compacta y forma estructuras como la que se ve al lado. Diga qué nombre reciben estas estructuras y cuantas hay en una célula humana

Answers

Answer:

cromosomas

Explanation:

Los cromosomas son moléculas lineales de ADN que contienen parte o todo el material genético de un organismo. El ciclo celular se divide en dos etapas: 1-interfase o etapa de 'no división' y 2-división celular. Durante la interfase, las fibras de cromatina no poseen un grado de condensación suficiente como para hablar de cromosomas. Durante la primera etapa de división celular (es decir, durante la profase), las fibras de cromatina se condensan para formar estructuras compactas conocidas como 'cromosomas' los cuales serán distribuidos entre células hijas. Las células somáticas de los seres humanos son diploides (2n = 46 cromosomas), esto significa que contienen 23 pares de cromosomas homólogos los cuales se alinean durante la metafase de la mitosis en la placa ecuatorial de la célula para ser distribuidos equitativamente entre células hijas durante las fases posteriores del ciclo celular (anafase, telofase y citocinesis). Por otra parte, las células germinales o gametos (espermatozoides masculinos y los óvulos femeninos) son haploides (n = 23 cromosomas) las cuales contienen un sólo set completo de cromosomas.

Which of the options below would be most likely to happen if snails (animals) were added to a clear container (so sunlight can get through) that had a lid placed on top?

1) ATP levels would decrease

2) O2 levels would decrease

3) glucose levels would increase

4) CO2 levels would decrease

Answers

The container in which the snails are found will experience a decrease in oxygen level.(Option 2)

What are animals?

Animals require to take in oxygen in order to breakdown complex food materials during the process of metabolism. Unlike plants that take in carbon dioxide, animals take in oxygen.

Thus, the container in which the snails are found will experience a decrease in oxygen level.

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1) List three properties of rocks.​

Answers

Answer:

three properties of rocks are;

they are hardthey have shape and sizethey have different texture.

Answer:

Their shapes vary

They are hard

They have different textures

Explanation:

Hope it helps

Have a great day :)

What are two ways that meiosis contributes to genetic variation? How do these two ways lead to variation?

Answers

Answer:

During prophase of meiosis I, the double-chromatid homologous pairs of chromosomes cross over with each other and often exchange chromosome segments. This recombination creates genetic diversity by allowing genes from each parent to intermix, resulting in chromosomes with a different genetic complement.Hope this is fine for you!!

What are the two sensory functions of ears?​

Answers

Answer:

obviously listening and hearing

Why do structural similarities between living things point to common ancestry?

Answers

Explanation:

Comparative anatomy is the study of the similarities and differences in the structures of different species. Similar body parts may be homologies or analogies. Both provide evidence for evolution. ... The structures are similar because they evolved to do the same job, not because they were inherited from a common ancestor.

Some functions of cellular organelles are given below.
a)Protein synthesis
b)Cellular respiration
c)Detoxify certain compounds
The organelles that perform the above functions are given respectively in which option?
(a) Mitochondrium,
Ribosome, Plastid
(b) Ribosome,
Mitochondrium, Endoplasmic
Reticulum
O (c) Ribosome, Golgy body,
Endoplasmic reticulum
(d) Ribosome, Plastid,
Endoplasmic reticulum

Answers

B) ribosome, mitochondrium, endoplasmic reticulum

16. Which genotype represents a recessive trait? *
1 point
ee
Ee
EA
EE

Answers

Answer:

ee

Explanation:

in order for the genotype to represent a recessive trait both alleles ( letters ) have to be lowercase hence the answer is ee

Which of the images below depicts a healthy reef ecosystem?

Image A, B, C, or D?

Answers

Answer:

A is the answer i think because it has more reef

disadvantages of using inorganic manure​

Answers

Answer:

Inorganic fertilizers are not entirely composed of the nutrients needed by the plants. It also contains salts and other compounds. These are not absorbed by the plants so they are left behind in the soil and build up over time.

In the presence of lidocaine, the action potential was NOT affected at R1 because _______. In the presence of lidocaine, the action potential was NOT affected at R1 because _______. lidocaine doesn't have an effect on the generation of action potentials lidocaine was applied upstream of R1 lidocaine was applied downstream of R1 there are no voltage-gated sodium channels to be affected

Answers

Answer:

In the presence of lidocaine, the action potential was NOT affected at R1 because lidocaine was applied downstream of R1

Explanation:

Lidocaine is an anesthetic that has the power to neutralize neuromal membranes. This anesthetic power allows the ionic fluxes capable of stimulating impulses to be diffused and this allows a dormancy to be achieved. However, when lidocaine is applied downstream to a molecule or structure, the action potential of that structure or molecule is not affected and it may continue to receive impulses.

Proteins are important food nutrients. A technician working at a food company is interested in the nutritional content of seeds/nuts. She runs a PAGE with samples from two different seed extracts. She runs multiple lanes of the staples. The gel is stained with Coomassie Blue. Seed extract No. 1 has three faint bands at 25, 30, and 35 kDa. Extract No. 2 has two bands at 25 and 35 kDa, and the bands are very dark. What might she conclude from her results about the nutritional value of the seed extracts

Answers

Answer: Sample 1 then, has more variety of proteins but less quantity of each one, while sample 2 has less variety but more quantity of the two proteins present.

Explanation:

Proteins are molecules found in the cells of all living organisms. A protein is composed of monomers called amino acids linked together by peptide bonds. To analyze proteins, a technique called SDS-PAGE (sodium dodecyl sulfate polyacrylamide gel electrophoresis) is used. This technique is used to separate proteins according to their electrophoretic mobility, depending on polypeptide chain length, molecular mass, post-translational modifications and other factors. SDS (sodium dodecylsulfate) is an anionic surfactant compound that breaks non-covalent bonds in proteins, denatures them causing these protein molecules to lose their native conformation and provides the polypeptide with a negative charge that is proportional to the chain length (the number of amino acids) and, therefore, to the molecular mass of the protein. The electrostatic repulsion created by the binding of SDS to the protein is one of the causes of the protein losing its native conformation, thus eliminating the differences in conformation of the different proteins to be separated in the gel.

An electric current is applied to the gel where the proteins are seeded, causing the negatively charged proteins to migrate through the gel in the direction of the anode (positively charged region). Short proteins will move more easily and faster through the pores of the gel, while larger proteins will find it more difficult to do so. After a certain time, the proteins will have migrated according to their size (measured in kDa or kiloDaltons). After electrophoresis, the gel should be stained with Coomassie blue or silver stain, allowing visualization of the separated proteins. After staining, the different proteins will appear as distinct bands on the gel. In addition, the higher the amount of a protein, the more intense the color of its band will be.

Extract No. 1 shows three bands: 25, 30 and 35 kDa. This means that it has three different proteins, each with a different molecular weight. Extract number 2 shows two bands: 25 and 35 kDa. It means that this sample has only 2 proteins. And being bands of higher intensity, we can say that there is more of each protein.

Sample 1 then, has more variety of proteins but less quantity of each one, while sample 2 has less variety but more quantity of the two proteins present.

Which of the following facts is the best evidence that humans and salamanders had a common ancestor?

A) Both species eat meat
B) Both species have pharyngeal arches and slits when they are embryos
C) Both species can swim
D) Both species have skin

Answers

Answer:

B

Explanation:

Look up an image of a human embryo v. a salamander embryo if you look carefully you'll see the arches and slits.

The answer would be B

Which best describes a gene?
the short arm of a chromosome
tightly coiled strands of DNA
the center of a chromosome
a segment of chromosomal DNA

Answers

Answer:

A gene is a segment of a DNA strand.

Answer: a segment of chromosomal dna

Explanation:

I NEED HELP ASAP A gradual increase in temperature of the Earth's atmosphere caused by gases and pollutants


A.Greenhouse gases

B.Fossil fuels

C.Global warming

D.Climate change

Answers

Global warming

The increase of greenhouse gases result into global warming :)

Which of the following statements is
FALSE?

•Disposal of radioactive waste is easy & poselittle risks to the environment.

•Radioactive waste still emit radioactivity.

•Radioactive materials can cause mutations.

Answers

•Disposal of radioactive waste is easy & poselittle risks to the environment.

Someone please help me

Answers

Answer:

Because the reaction creates glucose and oxygen, the products will be C6H12O6 + O2

Explanation:

Which organelle is labeled l?

Answers

Answer:

A

Explanation:

As you increase the temperature, the rate of photosynthesis increases and then decreases.


True

False

Answers

Answer:

true

Explanation:

Because plants need sunlight to do photosynthesis.

the answer is true !

Which of the following describes hemophilia?
O multiple-allele trait
O dominant trait
O sex-linked trait
O codominant trait

Answers

Sex-linked trait, to remember hemophilia is passed on through the X chromosome which is why males are more susceptible to sex-linked traits because they only have 1 X chromosome and women have 2

Where are producers located on the energy pyramid?

Answers

Answer:

At the beginning of the pyramid

Answer:

At the ground state.

explanation:

How are genes and proteins related?
O A. Proteins are used to build genes.
O B. Genes contain the code to make proteins.
O C. Proteins are made of parts of genes.
O D. Genes and proteins are both made of DNA.
SUBMI

Answers

Answer:

Genes contain the code that makes proteins

As well i think genes and proteins are both made of DNA

Earth is tilted at a 23.5 degree angle. Explain how this causes the equator to be hot and the poles to be cold.

Answers

Answer:

sunlight

Explanation:

at the angle the earth is at, sunlight hits the equator almost directly, as well as the equator being closer to the sun.

Other Questions
a relative density bottle has a mass of 29.2 g when empty its mass is 116.2 g when it is full of liquid or diesel and when full of water it's mass is 129.2 g calculate the relative density of diesel hey dale plzzzz helppp I neeed the answer plssss A sports magazine prints 12 issues per year, and a technology magazine prints 10 issues per year. The total number of pages in all the issues of the sports magazine for one year is 32 more than the total number of pages in all the issues of the technology magazine for one year. Each issue of the sports magazine has 18 fewer pages than each issue of the technology magazine. Which system of equations can be used to find s, the number of pages in each issue of the sports magazine, and t, the number of pages in each issue of the technology magazine?A. t = s - 1810t = 12s + 32B. s = t - 1812s = 10t + 32C. s = t - 1810s = 12t + 32D. t = s - 1812t = 10s + 32 PLEASE HELP ITS TIMED LITTERALY IM BEGGING :(( 32 points WITH BRAINLIEST!! Please help Ill give brainliest ima give branliest if you answer this correctly Megan is shopping at a store that sells jewelry, scarves, and purses. The cost of all of the items at the store includes tax. Megan buys 3 bracelets and 3 necklaces. Each bracelet costs $5. Megan pays the clerk $40 and gets $4 change. What is the cost, in dollars, of one necklace? I would appreciate if someone could answer this Which expression is equivalent to 5^15 x 5^5 Select the correct answer.Which expression is equivalent to the glven expression?(3m-4)^3(3m^5)A. 81/m^2 B.27/m^7 C. 27/m^2 D.81/m^7 Which of these statements is a paradox ?A. Blood is thicker than water B. You have to hurt him to help himC. I had to tap into my inner strength D. All things are beautiful in their own way Simplify (2m^4)^4*-n^5this is the last questions but I'm confused A medical assistant is preparing to take a patient's vital signs. Which of the following levels of proximity is necessary for this task?A. Intimate spaceB. Personal space C. Social space D. Public space 1. In 1996 a meteor crashed into the Earth near Steelsville, Ontario. The resulting meteorite was found to contain 5,790 g of Molybdenum Chloride having a formula of Mo2Cl9. How many molecules of Mo2Cl9 are present in the 5,790 g meteor? Can someone help me? It's urgent and thank you! what type of food is made during photosynthesis The color spectrum isA. the colors in the rainbowB. all of the secondary colorsC. all the possible shades of a single colorD. the shades of gray between white and blackFirst person to answer gets Brainly halp its due today brainliest to best answer its really easy just put words with the correct ones. i dont know how to do it please halp Terrific Tents has a new two-person tent. If the material costs $0.02 per square inch, find out how much it costs to make each two-person tent.