Answer:
Our results contrast with research conducted in protected areas that suggested human effects in the food web are primarily predator-mediated. Instead, human influence on vegetation may strengthen bottom-up predominance and weaken top-down trophic cascades in ecosystems.
Explanation:
Humans affect the different trophic levels in ecosystems on Earth through destroying it via activities such as habitat destruction, pollution etc.
What is Ecosystem?This refers to all the organisms and the physical environment with which they interact.
Humans have destroyed most of the trophic level through predator mediated activities but however have increased the producers through agricultural processes.
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Most bacteria are surrounded by a rigid protective structure called the _____.
•cell wall
•cell membrane
•flagellum
•protein coat
Answer:
Most bacteria are surrounded by a rigid protective structure called the cell wall.
Hello, I'm 18 yrs, I just wanted to see the answer pls for this!
Answer:
Central diagram
Explanation:
The shark and remora fish have a __________________ relationship. The remora fish benefits by attaching itself to a shark and eating scraps and pieces of fish that the shark does not eat. The shark is not harmed and does not benefit from the remora fish.
Answer:
commensalism
Explanation:
one benefits while the other does not
Answer:
commensalism
Explanation:
4. There are three codons that signal the end of synthesis, these are called STOP codons.
What are the three stop codons?
Answer:
UAG, UAA, and UGA are the three STOP codons.
Explanation:
Suppose that millions of years from now Australia moves to South America. Would Australia still have the same kinds of mammals? Explain your answer.
Answer:
Which best explains why Australia has life forms that do not exist anywhere else on Earth? Australia was separated from the other landmasses by geological forces. Scientists think that dolphins and whales may have evolved from a common ancestor.
Assuming that millions of years from now Australia moves to South America. Australia would not have the same types of mammals, because with the junction of the continents new conditions would suggest for animals to evolve.
What was the evolution of continents?Continental Drift is a theory that claims that, at one time, all the present-day continents formed just a single landmass, called Pangea. This supercontinent, thanks to the movement of the Tectonic Plates, fragmented several times until it provided the current shape of the land masses.
With this information, we can conclude that millions of years from now Australia will move to South America. Australia would not have the same types of mammals, as with the joining of the continents new conditions would suggest the evolution of animals.
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What is the system that performs the collection of glands that secrete hormones into the bloodstream?
A. Nervous system
B. Endocrine system
C. Lymphatic system
D. Immune system
Answer:
The answer is B. Endocrine system.
Answer:
B. Endocrine system
Endocrine glands release hormones into the bloodstream. This lets the hormones travel to cells in other parts of the body. The endocrine hormones help control mood, growth and development, the way our organs work, metabolism , and reproduction.
4) Complete the statement below showing the relationship between chromosomes,
genes and DNA.
Histone proteins form the chromosomes when the DNA is inserted into the active sites of the proteins.
Woodpeckers and squirrels fight for nesting rights in the same holes and spaces in trees, while the lions and cheetahs of the African savanna fight for the same antelope and gazelle prey. Which of the following statements about these relationships is accurate?
Answer:
its probably somehting abt competition :)
Explanation:
they fight for a limited resource which is competing
Answer:
These are examples of competition because the organisms are fighting for resources.
Explanation:
They are all fighting for the same things so it would be a competition.
what are the types of receptors being used by the serval, the spider, the chameleon, and the male silkworm moth?
Answer:
yaeh
Explanation:
Silkworm moth, (Bombyx mori), lepidopteran whose caterpillar has been used in silk production (sericulture) for thousands of years. Although native to China, the silkworm has been introduced throughout the world and has undergone complete domestication, with the species no longer being found in
A climbing plant wraps around a lattice structure as it grows. This is an example of which type of tropism?
Answer: I believe it is Thigmotropism.
This is thigmotropism as it is responding to touch. Since the plant cannot support itself, it wraps around the lattice structure.
Using homologous structures and any other information (from notes, activities, etc),
explain your opinion on the THEORY OF EVOLUTION in 8 sentences. Be sure to cite
evidence (supporting details) for your ideas (EVALUATION RI 8.8).
evolution is fundamentally unpredictable.the theory of evolution as it is used here refers to "macroevolution'a theory is meant to both explain and predict;the theory of evolution only explains .the theory of evolution is not a theory and it is suggested calling it a working hypothesis:the working hypothesis of evolution
What phase of the moon does this image represent?
Answer:
Waxing Quarter
Explanation:
Which statements correctly describe the grana and stroma?
Select two that apply.
A. Inside the outer membranes is a gel-like fluid known as the stroma.
B. Inside the outer membranes is a gel-like fluid known as the grana.
C. Stacks of thylakoid membranes are collectively called the stroma.
D. Stacks of thylakoid membranes are collectively called grana.
Answer:
Stacks of thylakoid membranes are collectively called grana.
When plants with red flowers are crossed with plants with blue flowers, sometimes only red flowers are produced; other times either red or blue flowers are produced. Which gene is dominant?
Answer:
The colors you see in flowers come from the DNA of a plant. Genes in a plant's DNA direct cells to produce pigments of various colors. When a flower is red, for instance, it means that the cells in the petals have produced a pigment that absorbs all colors of light but red.
Explanation:
Dominant refers to the relationship between two versions of a gene. Individuals receive two versions of each gene, known as alleles, from each parent. If the alleles of a gene are different, one allele will be expressed; it is the dominant gene. The effect of the other allele, called recessive, is masked.
places where seeds are stored to help preserve biodiversity?
Answer:
Millions of these tiny brown specks, from more than 930,000 varieties of food crops, are stored in the Global Seed Vault on Spitsbergen, part of Norway's Svalbard archipelago. It is essentially a huge safety deposit box, holding the world's largest collection of agricultural biodiversity.
Explanation:
thanks me later
What is the function of the structure identified by the red arrow? (4 points)
The image shows bacteria with thick cell walls. The red arrow points to these cell walls.
© 2011 FLVS
Food capture
Mobility
DNA transfer
Protection
Answer:
The cell wall provides protection/strength and structure to the cell
Answer:
Protection
Explanation:
fog is a cloud that has.
And red is a color not the word "stop"
Answer:
it's Base near the ground
Explanation:
occurs close to the earth surface
A $10 shirt is on sale for 25% off the price. What is the sale price of the shirt?
vinosum is most closely related to which organism
Answer:
Radiodurans, thermophilius
Explanation:
A Vinosum is most closely associated with the thermophilus and the Radiodurans.
What do you mean by Vinosum?Vinosum may be defined as a gram-negative bacteria which is rod-shaped in structure, anoxygenic in nature, and categorized under purple-sulphur bacteria.
Vinosum bacteria are thermophilus which means they survive at relatively high temperatures. They are halotolerant which means they survive in extremely high salt concentrations.
Therefore, a Vinosum is most closely related to the thermophilus and the Radiodurans.
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UHMM I REALLY NEED HELP IM BAD AT Science
Answer:
the answer is A im 99 percent shure
Explain at least two advantages of having both parents involved in raising a child as part of a two-parent family.
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AND DONT USE THOSE CRAZY LINKS OR YOU WILL BE REPORTED
Answer:
this is a fake account to make u brainiest
Explanation:
Which of the following describes an effect of particulate matter on health?
Fine particles are less dangerous, as they mainly affect nasal passages.
Coarse particles are associated with aggravated asthma.
Coarse particles are more dangerous, as they infiltrate deep into the lungs.
Fine particles are associated with decreased lung function.
Answer:Particle pollution and health risks, including premature death. Health effects may include cardiovascular effects such as cardiac arrhythmia´s and heart attacks, and respiratory effects such as asthma attacks and bronchitis.
Explanation:
Millicent encountered this organism while walking in the forest. It grows on dead trees, consuming the detritus left by other decomposers. What term best describes this organism?:
A
saprotroph
B
detritivore
C
predator
D
scavenger
MULTIPLE CHOICE
Answer:
A. Saprotroph
Explanation:
A saprotroph is described as an organism that gains nourishment from organic matter that has started to decay.
As per the situation, the organism that grows on dead trees, consuming the detritus left by another decomposer are saprotroph.
What is a saprotroph?
Saprotroph, also called saprophyte or saprobe, are organism that grazes on the nonliving organic matter known as debris at a microscopic level.
Bacteria, fungi, etc are examples of saprotrophs.
Thus, option "A" saprotroph.
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Answer:
B. Repetition is when a scientist does the same experiment several times; replication is when other scientist reproduce a scientist's experiment.
Explanation:
Repetition: Repeat.
Replication: remake
In an article about saving the whales written by a marine biologist, which word might be used by the author to make you want to help with saving the whales?
Answer:
Endangered
Explanation:
Endangered species are organisms that are at risk of extinction if deliberate efforts are not made to conserve them due to a rapid decrease in their population.
Hence, if a marine biologist writes an article about saving whales and labels them as endangered species, all efforts should be geared towards saving the animals lest they go extinct and leave a vacuum in the functioning of the ecosystem. Every species have the critical roles they play in the functioning of the ecosystem and the extinction of any particular species represents a loss that might not be replaceable.
Answer:
endangered
i did the USAtestprep
what organelles work together to produce proteins?
A. nucleus and ribosome
B.cell membrane and nucleus
C.mitchondria and ribosomes
D.Mitchinondria and vacuole
Answer: A
Explanation:
The nucleus provides the instructions for making the proteins (the DNA) and the ribosomes are actually where the proteins are made.
Answer:
Explanation:
Option C is the correct answer
Your normal heartbeat before exercise is called your ____________________.
heart rate
muscle
pre-heart rate
tissue
Answer:
Heart rate i think
Explanation:
Answer:
it should be resting heart rate, but i dont see that as an answer...
Please help me and no file
Explain IN YOUR OWN WORDS why cancer drugs "turn a cancer's weakness against itself."
Answer:
There are several possible reasons for chemotherapy resistance: Some of the cells that are not killed by the chemotherapy mutate (change) and become resistant to the drug. Once they multiply, there may be more resistant cells than cells that are sensitive to the chemotherapy. Gene amplification.
Which best describes the transfer of energy through food webs?
A. Energy from animals is recycled among herbivores and carnivores.
B. Energy from plants is transferred from decomposers to consumers.
C. Energy from animals is recycled from decomposers to consumers and then to producers.
D. Energy from plants is transferred to consumers, and then from producers and consumers to decomposers.
Answer:
D.
Explanation:
Energy from plants is transferred to consumers and then producers and consumers to decomposers.
Which three terms relate to sexual reproduction but not to asexual reproduction?
A. Sperm
B. Mitosis
C. Gametes
D. Meiosis
Answer:
I believe its A, C, and D
Explanation: