True/False
Indicate whether the sentence or statement is true or false.

1. Herd animals are usually concentrated in the forest biome.

2. The great northern coniferous forests are part of the tundra biome.

3. Phytoplankton are usually found concentrated in the cuphotic zone of the ocean.

4. The tundra is a region dominated by deciduous trees.

5. The colonization of new sites by communities of organisms is secondary succession.

6. The portion of the shoreline that is affected by the changing tides is the aphotic zone.

7. The region of the occan shallow enough for sunlight to penetrate is the photic zone.

8. Succession is the replacement of one community by another as environmental conditions change.

9. A body of water near the coast that is partly surrounded by land and contains both fresh and salt water is known as the intertidal zone.

10. Humus is a layer of soil that remains frozen throughout the year.

11. Microscopic organisms that float in the sunlit regions of the ocean are pioneer species.

12. The number of species in an area is a measure of biodiversity.

13. Temperate deciduous forests have more biodiversity than any other terrestrial biome.

14. The pesticide CFC damaged the eggs of the American bald eagle.

15. When roads cut across natural areas, this produces habitat fragmentation.

16. A species that is brought to a place where it never lived is considered a(n) native species.

Answer:

A

Explanation:

Option A is the orientation of phospholipids that best represents the  phospholipid bilayer of the plasma membrane.

The phospholipid bilayer (the lipid layer) is known to be a thin polar membrane. It is usually made of two layers of molecules that are lipids. These are flat sheets which actually form a continuous barrier around the cells.

The phospholipid is a lipid which is made up of glycerol, two fatty tails and the head is phosphate-linked. The tails point inward and are arranged in a way  called phospholipid bilayer.

Phospholipids are great for building the protective barrier around the cell of the body.

Answer:

The continuous movement of blood through heart and blood vessels is called blood circulation.

Answer:

atmosphere  -affecting the-  biosphere

(I had this question a week ago.)

atmosphere affecting the biosphere is the answer

atmosphere- the air

biosphere- supporting living organisms

Hope this helps you!! :)

Answer:

I need the picture or the numbers for it

Answer:

I believe its D speed and direction of the student

Explanation:

Unbalanced forces change an objects motion called acceleration

Acceleration is the change in speed or direction of an object

The following figure accurately depicts how heterozygous alleles can be located on homologous chromosomes: Aa ( The first diagram ).

DNA is ordered most highly in chromosomes. The primary role of chromosomes is to transport DNA and pass genetic material by one generation to the next. Cell division depends heavily on chromosomes. They shield the DNA against damage and tangling.

Male cells include X and Y chromosomes, whereas female cells have two X chromosomes. Sperm cells have either an X or a Y chromosome, whereas all egg cells have an X chromosome. Because of this arrangement, the sex of the baby is decided by the male during fertilization.

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Answer:

the last image, (a, a)

Explanation:

i put Aa (the first one) and it was wrong

Answer: Food shortages occur and living spaces become overcrowded or no longer available to the species.

Explanation:

Answer:

TACGGCA

Explanation:

We want to find the complementary strand of  

ATGCCGT

.

Remember that  

A

is adenine,  

G

is guanine,  

C

is cytosine, and  

T

is thymine.

Adenine always bonds with thymine, and guanine only bonds with cytosine. In  

RNA

however, uracil  

(

U

)

is substituted for thymine instead.

So, in translation, adenine turns into thymine, and guanine turns into cytosine, and vice-versa.

So, the complementary side would read  

TACGGCA

.

Answer:

The cell is the basic structural and functional unit of life. Cells are independent, single-celled organisms that take in nutrients, excrete wastes, detect and respond to their environment, move, breathe, grow, and reproduce.

lil more info

What is the basic unit of structure and function in plants and animals?

Cell Theory !

All living things are made of cells. The cell is the basic unit of structure and function in all living things.

Can i have brainlist?

Maybe, mosquitoes lay eggs in still water like a in pail or bucket

Based on the given information, we can analyze the effectiveness of bare metal stents compared to drug-coated stents in terms of retreatment rates. So as per the given information the P-value is 0.151.

To determine if the proportion of patients needing retreatment is lower for those who received drug-coated stents, we can conduct a hypothesis test using the given sample proportions and the P-value method with a significance level of α=0.05.

The null hypothesis (H₀) states that there is no difference in the proportion of patients needing retreatment between bare metal stents and drug-coated stents (p₁ = p₂). The alternative hypothesis (H₁) states that the proportion of patients needing retreatment is lower for drug-coated stents (p₁ > p₂).

By performing the hypothesis test and calculating the P-value, we can assess whether the observed data provides enough evidence to reject the null hypothesis in favor of the alternative hypothesis. The TI-84 Plus calculator can be used to calculate the P-value, which will help determine the statistical significance of the results.

For the group with bare metal stents:

n₁ = 5314 (total patients with bare metal stents)

X₁ = 832 (patients needing retreatment with bare metal stents)

p₁ = X₁ / n₁

For the group with drug-coated stents:

n₂ = 1119 (total patients with drug-coated stents)

X₂ = 140 (patients needing retreatment with drug-coated stents)

p₂ = X₂ / n₂

We can calculate the test statistic using the formula:

z = (p₁ - p₂) / sqrt(p(1 - p)(1/n₁ + 1/n₂))

where p = (X₁ + X₂) / (n₁ + n₂)

so the P-value is 0.151.

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Answer:

Thynine, Guanine

Explanation:

Answer:radius is 5,672

it will not vaporize venus and eart.

Explanation:

Answer:

Hot, less-dense air rises.

Explanation:

The diagram is not given in the question, so the diagram is attached below: Answer:

step E

Explanation:

The viruses are assembled in Step E.

The assembly of the virus occurs in nucleus or cytoplasm of host cell. In step D, viral components of virus are synthesized and in the next step E, The viral component assembled into mature virus.

Hence, the correct option is "Step E".

Answer:

C. step E

Explanation:

just took the test from E D G E and got 100% :D

hope this helps ya'll

Answer:

So, assuming the dice are 'fair' (that each of the six numbers has a probability of 1/6 of showing up on each of the dice), there is a probability of 1/36 that all three dice will show the same number.

Explanation:

Assuming resting conditions at sea level, the partial pressure of carbon dioxide in systemic veins is 46 mm Hg.

In systemic veins, the partial pressure of carbon dioxide is 46 mm Hg. Alveoli have a low partial pressure of carbon dioxide compared to lung capillaries.

Carbon dioxide concentration is high in the veins as compared to the arteries because veins carry deoxygenated blood from body to the heart chambers. Thus, amount of oxygen is low in comparison to carbon dioxide.

Using network of arteries, veins and capillaries, the blood carries carbon dioxide to lungs and picks up oxygen.

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Answer:

A single called organism does not differ from the parent and is an exact copy of it.

Explanation:

Increased fitness of large-beaked birds, leading to natural selection. So, the correct option is (B).

Natural selection is defined as the differential survival and reproduction of individuals due to differences in phenotype which is a major mechanism of evolution, a change in the genetic properties of populations over generations.

For Darwin, natural selection is a drawn-out, complex process involving many interrelated causes where it requires variation in populations of organisms. For the process to work, at least some of that variation must be heritable and passed on to the organism's descendants in some way.

Example of Natural selection is birds with larger beaks are better able to survive in the new environment.

Thus, increased fitness of large-beaked birds, leading to natural selection. So, the correct option is (B).

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The most beneficial action to stop the dead zones from reappearing in the Gulf of Mexico in the future would be to restore inland and coastal wetland areas that have been destroyed or degraded (option A).

Deаd zones аre аreаs of wаter where oxygen levels аre so low thаt mаrine life cаnnot survive. They аre cаused by аn excess of nutrients, such аs nitrogen аnd phosphorus, which come from аgriculturаl runoff аnd other sources. These nutrients stimulаte the growth of аlgаe, which then die аnd decompose, consuming oxygen in the process. By restoring wetlаnd аreаs, the excess nutrients cаn be аbsorbed, preventing them from reаching the Gulf of Mexico аnd contributing to the formаtion of deаd zones.

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Haploid: female gametophyte, male gametophyte . Diploid: sporophyte, endosperm . Other: egg cell, sperm .

Sporophyte is the diploid generation in the life cycle of most plants and algae. It is the multicellular stage that produces spores through meiosis. This stage is dominant in most plants, with the gametophyte (haploid) stage lasting for a much shorter period of time. The sporophyte develops from the zygote, which forms after fertilization of the egg cell by a sperm cell.

The sporophyte consists of cell divisions and cell growth, resulting in the formation of an embryo, which then grows into a mature sporophyte. The sporophyte produces haploid spores through meiosis, which then develop into gametophytes.

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Answer:

last one is the correct answer

1. Ant

2. Antelope

3. Baboon

4. Bat

5. Beagle

6. Bear

7. Bird

8. Butterfly

9. Cat

10. Caterpillar

11. Chicken

12. Cow

13. Dog

14. Dolphin

15. Donkey

16. Eagle

17. Fish

18. Fly

19. Fox

20. Frog

21. Gerbil

22. Goose

23. Gopher

24. Gorilla

25. Heron26. Honey Bee

27. Horn Shark

28. Horse

29. Ibis

30. Iguana

31. Impala

32. Jackal

33. Jaguar

34. Javanese

35. Jellyfish

36. Kakapo

37. Kangaroo

38. King Penguin

39. Kiwi

40. Koala

41. Lemming42. Lemur

43. Leopard

44. Saola

45. Scorpion

46. Snake

47. Swan

48. Tuatara

49. Turkey

50. Zebra

The emergence of methicillin-resistant strains of Staphylococcus aureus (MRSA) is due to the evolutionary process of natural selection in which bacteria that are able to resist the effects of antibiotics like methicillin are selected for and can survive and reproduce.

The emergence of methicillin-resistant strains of Staphylococcus aureus (MRSA) is due to the evolutionary process of natural selection. Methicillin and other antibiotics work by targeting specific proteins or enzymes involved in bacterial cell wall synthesis. In the case of methicillin, it targets an enzyme called penicillin-binding protein 2a (PBP2a), which is responsible for building the bacterial cell wall.

However, some bacteria have evolved mechanisms to resist the effects of antibiotics like methicillin. In the case of MRSA, the bacteria have acquired a gene called mec-A, which encodes for a modified form of PBP2a that is not affected by methicillin. This modified PBP2a allows MRSA to continue building a cell wall, even in the presence of methicillin, and to survive and reproduce. The mec-A gene is carried on a mobile genetic element called a staphylococcal chromosomal cassette (SCC-mec), which can be transferred between bacteria through a process called horizontal gene transfer. This allows MRSA to spread rapidly and for new strains of MRSA to emerge over time. The widespread use and overuse of antibiotics like methicillin have contributed to the evolution and spread of antibiotic-resistant bacteria like MRSA. When antibiotics are used, they kill susceptible bacteria but leave resistant bacteria to thrive and multiply, leading to the emergence of resistant strains. Additionally, the use of antibiotics in livestock and agriculture has also contributed to the evolution of resistant bacteria, as antibiotics are used to promote growth and prevent infections in these settings.

In summary, the emergence of methicillin-resistant strains of Staphylococcus aureus (MRSA) is due to the evolutionary process of natural selection, in which bacteria that are able to resist the effects of antibiotics like methicillin are selected for and can survive and reproduce. The mec-A gene, carried on a mobile genetic element called SCC-mec, confers resistance to methicillin, and horizontal gene transfer allows MRSA to spread rapidly and for new strains to emerge. The widespread use and overuse of antibiotics have contributed to the evolution and spread of antibiotic-resistant bacteria like MRSA.

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If I were a mad scientist with a cunning plan to create a new species, I would give this species the ability to fast proliferate and spread throughout the environment. I would also give it the ability to survive in a range of environmental conditions so that it can swiftly adapt to any changes in its habitat.

I would also place the species in a lot of confrontation with other species, to outcompete them for resources and eventually seize control of the habitat.

These abilities and characteristics were chosen because they are essential for a species to survive in a given habitat. Due to its potential for survival, fast reproduction, and spread, the species may quickly increase the size of its population.

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Answer:

When ATP is converted into ADP + P energy is released and used by the cell.

Explanation: ATP contains energy, when a certain part breaks off it converts into ADP and releases energy for the cell tp use.

When ATP is converted into ADP + Pi , energy is released and used by the cell is the most accurately describes the role of ATP as a source of energy.

An organic substance called adenosine triphosphate (ATP) gives energy to a variety of biological functions in living cells, including muscular contraction, nerve impulse transmission, condensate dissolving, and chemical synthesis.

ATP is frequently referred to as the "molecular unit of currency" of intracellular energy transfer and is present in all known forms of life. It either transforms into adenosine monophosphate (AMP) or adenosine diphosphate (ADP) when absorbed in metabolic activities (AMP).

ATP is replenished by other processes. Every day, the human body recycles the equivalent amount of ATP to its own body weight. Additionally, it serves as a coenzyme and a precursor to DNA and RNA.

Therefore, When ATP is converted into ADP + Pi , energy is released and used by the cell is the most accurately describes the role of ATP as a source of energy.

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Answer:

Explanation:

Here are 10 examples of disease-causing microorganisms (pathogens), along with their habitats and the diseases they can cause:

1.Escherichia coli (E. coli)

Habitat: Found in the intestines of humans and animals.

Disease: Causes food poisoning and urinary tract infections.

2.Influenza virus

Habitat: Found in respiratory droplets and surfaces contaminated by infected individuals.

Disease: Causes seasonal flu and can lead to severe respiratory illness.

3.Salmonella

Habitat: Found in the intestines of animals, including birds, reptiles, and mammals.

Disease: Causes salmonellosis, which leads to gastrointestinal symptoms such as diarrhea and vomiting.

4.Streptococcus pneumoniae

Habitat: Found in the respiratory tract of humans.

Disease: Causes pneumonia, sinus infections, and other respiratory tract infections.

5.Human Immunodeficiency Virus (HIV)

Habitat: Found in human blood, semen, vaginal fluids, and breast milk.

Disease: Causes Acquired Immunodeficiency Syndrome (AIDS), which weakens the immune system.

6.Staphylococcus aureus

Habitat: Found on the skin and in the nasal passages of humans.

Disease: Causes various infections, including skin infections, pneumonia, and bloodstream infections.

7.Plasmodium

Habitat: Found in the gut of female Anopheles mosquitoes and the blood of infected humans.

Disease: Causes malaria, a mosquito-borne disease characterized by recurring fever and other symptoms.

8.Mycobacterium tuberculosis

Habitat: Primarily affects the lungs of humans.

Disease: Causes tuberculosis (TB), a bacterial infection that primarily affects the respiratory system.

9.Candida albicans

Habitat: Found on the skin, mucous membranes, and gastrointestinal tract of humans.

Disease: Causes candidiasis, which includes yeast infections in various parts of the body.

10.Chlamydia trachomatis

Habitat: Infects the genital and urinary tracts of humans.

Disease: Causes sexually transmitted infections (STIs) such as chlamydia, which can lead to various complications if left untreated.

The abundance of silicates in the Earth's crust is due to the prevalence of silicon and oxygen in the Earth system.

Silicon is the second most abundant element in the Earth's crust after oxygen, making up approximately 28% of its composition. Meanwhile, oxygen makes up approximately 46% of the Earth's crust.

The combination of silicon and oxygen forms the basic building block of silicate minerals, which account for more than 90% of the Earth's crust. Silicates can contain other minerals, such as aluminum, magnesium, potassium, and sodium, among others, which further increase their diversity.

The abundance of silicon and oxygen in the Earth's crust is a result of the planet's formation. When the Earth was formed approximately 4.5 billion years ago, it went through a process called differentiation. This process caused the heavier elements, such as iron and nickel, to sink to the core, while lighter elements, including silicon and oxygen, remained in the outer layers of the planet.

Over time, the Earth's crust has undergone a variety of geological processes, including weathering, erosion, and metamorphism, which have helped to create and modify the different types of silicate minerals we see today.

Overall, the prevalence of silicates in the Earth's crust is a result of the abundance of silicon and oxygen in the Earth system, which has been shaped by the planet's formation and geological processes over billions of years

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