Answer:
A. Primary
Explanation:
When lichens die, they decompose, adding small amounts of organic matter to the rock to make soil.
Explain why Halley’s Comet is part of our solar system.
Answer:
because they were originally long period comets whose orbits were perturbed by the gravity of the giant planets and directed into the inner solarsystem
Halley's Comet is part of our solar system because it orbits around the Sun.
What is Halley's Comet?Halley's Comet is a periodic comet that follows a predictable orbit around the Sun and brings it close to the Earth once every 75-76 years. Halley's Comet originated from the Kuiper Belt, which is a region of the solar system containing icy objects.
When the comet approaches the Sun, the comet's ice and dust sublimate, which creates a bright coma that can be seen from Earth. The comet's nucleus is about 11 kilometers in diameter.
Halley's Comet is observed by humans for thousands of years. The regular return of comets allows scientists to study them in detail, thereby, helping us understand comets and the early solar system.
Therefore, Halley's Comet is part of our solar system because it orbits around the Sun like the other planets or objects in our solar system.
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A neuron that responds most strongly when an animal is in a particular location in the environment is a: a. Center-surround cell b. Location cell c. Hypercomplex cell d. place cell
A place cell is a neuron that responds most strongly when an animal is in a particular location in the environment.
What is a Place cell?These are types of neurons which fire when animals go to certain locations in the environment.
These type of cells are found in the hippocampus and is characterized by their peak activity.
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Please helppp with this question
Heyy.
So i did the alternative activity for this assignment.
In task one I only did part F:
answer:
Weathering damage on Cleopatra's Needle, an Egyptian obelisk in Central Park, New York City, is compared to known weathering rates of granites in various regions. The detrimental influence of the city's environment in 83 years of exposure has been attributed by textbook authors to damage to this coarse-grained foliated granite. As evidenced by the original depth of inscription in New York, about 11/2 inches of maximum surface reduction had occurred. Granite reduction rates in humid regions were calculated to be as low as 0.0076 mm per year, and even lower in deserts. The majority of the damage to the obelisk was caused by rising moisture laden with sulfate salts in Egypt, according to the findings. The hydration pressure of these salts, combined with frost wedging, is responsible for the major damage to the monument, which happened during its first few years in New York.
In task 2 I only did part D
answer:
Two independent sets of observations on sand activities in relation to the flowing river are recorded as the water passes through the meandering river. Stream abrasion can affect the morphology of a stream or river dramatically over time. Because the water can start erosion with anything near it, erosion can impact human communities near rivers.
MAKE SURE YOU SAY THAT YOU DID THE ALTERNATIVE ACTIVITY!!!!
Puberty in humans is the result of changes in the ___________, which result in an increased secretion of _________, which then stimulates an increased secretion of __________.
Answer:
hypothalamus; GnRH
Explanation:
Puberty is the result of chanes in the hypothalamus. Causing increased secretion of gonadotropin-releasing hormone (GnRH)
Evaluate whether a sea beeze could occur night
Answer:
During the night the water releases it's heat much slower causing the air over the water to be warmer than the air over the land. This ends up working the same as the sea breeze only this time the lower pressure is over the sea and the air then moves from the land.
Answer: During the night the water releases it's heat much slower causing the air over the water to be warmer than the air over the land.
Which statement is true about the structure of a double-stranded dna molecule?.
In the structure of a DNA, as the particular complementary base pairing of the DNA nucleotides, the diameter of a DNA molecule is the same over its length.
What is a DNA?DNA stands for deoxyribonucleic acid, is the hereditary unit of an organism which is responsible for the production of characters.
The missing options in the question are:
Purine nucleotides always form base pairs with other purines, and pyrimidine nucleotides always form base pairs with other pyrimidines.The nucleotides in a strand of DNA are held together by hydrogen bondsThe diameter of a DNA molecule is the same along its entire length due to the specific complementary base pairing of the DNA nucleotides.The nitrogenous bases in one strand are held to the nitrogenous bases of the other strand by phosphodiester bonds.In the structure of a DNA, as the particular complementary base pairing of the DNA nucleotides, the diameter of a DNA molecule is the same over its length.
Thus, this is the true statement regarding the structure of a double-stranded DNA molecule i.e., option C.
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Which type of vaccine could possibly cause a person to develop the disease?.
Answer:
Only those immunizations made from weakened (also called attenuated) live viruses — like the chickenpox (varicella) and measles-mumps-rubella (MMR) vaccines — could possibly make a child develop a mild form of the disease.
In some cases tumors support their unrestricted proliferation producing a growth factor that they also respond to. this mechanism is called _____ signalling
The tumors support their general proliferation by producing a growth element that they also respond to, this mechanism is called autocrine signalling.
What is autocrine signaling?Autocrine signaling means the display and secretion of an extracellular intermediate by a cell followed by the binding of that mediator to receptors on the same cell to start signal transduction.
A form of autocrine signaling is the secretion of IL-1 by macrophages.
Thus, this mechanism is called autocrine signalling.
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A newly synthesized protein destined for secretion from a eukaryotic cell will generally follow which of the pathways listed below, starting with where it was synthesized?
There is only one correct answer for this question.
A) ribosome →rough ER → smooth ER →Golgi → transport vesicle → nucleus
B) Golgi → rough ER → lysosome → transport vesicle → plasma membrane
C) ribosome →rough ER → transport vesicle → Golgi → transport vesicle → plasma membrane
D) rough ER → lysosome →ribosome→ transport vesicle → plasma membrane
why the walls of the ventricles are much thicker than the walls of the atria.
Answer:
The ventricles of the heart have thicker muscular walls than the atria. This is because blood is pumped out of the heart at greater pressure from these chambers compared to the atria.
Explanation:
hope this helps
which of these pairs of organisms are most closely related?
A) aix sponsa and anas acuta
B) anas discors and anas americana
C) martes americana and mycteria americana
D) anas cyanoptera and mycteria americana
Answer:
B anas discors and anas americana
Explanation:
They are the most related out of the options since they are from the same genus.
in the water culture experiment why should a lack of nitrate cause reduced growth
Answer:
Plants absorb nitrates in water through their roots. Nitrates are present in high levels in plant fertilisers. Without nitrates, the amount of chlorophyll in leaves reduces. ... This reduces the plant's ability to photosynthesise and grow properly, which reduces the farmers' crop yield .
What effect do predators have on the ecosystem?
Answer:
Dispersing rich nutrients and seeds from foraging, they influence the structure of ecosystems.
Answer:
They keep prey populations at a managable level.
Explanation:
For example, a wolf pack will hunt deer and kill deer. This killing will make sure there is never too many deer. If there are too many deer, too many plants may be eaten; And then the entire ecosystem can fall apart.
Important! Are wolfbloods real?
Answer:
No
Explanation:
Answer:
Even though there is no complete evidence there is a 50/50 chance of them being real. But at the moment they are an endangered speices
Explanation:
When Wolfbloods transform, the first visible sign is that the irises of their eyes turns from their regular eye colour, to a swirling black colour and then turns bright yellow. The veins in their hands and neck then start to become darker and reveal themselves. Every cell in their body changes, right down to their DNA and then, they become a wolf.
1. Get 1 piece of bread.
2. Tear it up into small pieces and put them into a ziplock bag (sandwich size preferred). 3. Add water to the bread pieces and seal the bag.
4. Gently squeeze and smash the bag for 30 seconds.
5. Unzip a small corner of the bag and drain out the water but leave the bread pieces. 6. Put the bag of bread in the trash can for storage until someone empties it.
Explain how each step you completed with the sandwich bag represents a section of the digestive process. Label each as a mechanical or chemical digestion. 15 pts
Process
Represents 2 pts ea Mechanical or Chemical? 1 pt each
Tearing bread into pieces
Adding water to bread
Squeezing bread
Draining out water
Storing bag of bread in garbage
How does gene pool and allele frequency terms relate to another??
Answer:
Allele frequency is how often an allele occurs in a gene pool
Explanation:
Allele frequency refers to how common an allele is in a population. It is determined by counting how many times the allele appears in the population then dividing by the total number of copies of the gene. The gene pool of a population consists of all the copies of all the genes in that population.
Name 3 factors you can use to determine if organisms are apart of separate species.
Answer:
According to the biological species concept, organisms belong to the same species if they can interbreed to produce viable, fertile offspring. Species are separated from one another by prezygotic and postzygotic barriers, which prevent mating or the production of viable, fertile offspring.
Use your notes to create a flow chart detailing the process of protein synthesis. Make sure to include the following terms.
Answer:
Hi! Here is the flow chart of the process of the protein synthesis, hope this helps! (Mark me as brainliest if the chart is accurate!) Have a great day :)
A forest was converted into a national park. this process required constructing roads and highways to make it accessible for people. construction of roads inside a forest has resulted in of natural habitat. a large population of organisms was split into several smaller populations, which decreased the chance that an individual would .
Construction of roads inside a forest has resulted in fragmentation of natural habitat.
What is Fragmentation?This is the process of breaking down larger particles into smaller bits known as fragments.
When it happens to a large population of organisms there is a decreased the chance that an individual would find an unrelated mate.
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Answer:
a
Explanation:
Match the term to the definition. Question 1 options: 19 The rising of ocean water bringing nutrients up from the deep. 1 The cyclical process of the changing state and movement of water around the Earth through evaporation, condensation, and precipitation. 4 As the amount of salt in water increases, the density of the water _________. Water circulation created by differences in density. The type of energy possessed by moving water. The distance from the crest of one wave to the crest of another. The amount of dissolved salt in a liquid. Water circulation created by prevailing wind systems. The Gulf Stream is an example. This is what moves forward and through a wave. The length of open sea over which wind can blow steadily to create waves. 1. The water cycle 2. vapor transport 3. salinity 4. increases 5. decreases 6. surface currents 7. Coriolis Effect 8. deepwater currents 9. trough 10. wave period 11. wavelength 12. water molecules 13. energy 14. crest 15. fetch 16. electrical 17. kinetic 18. downwelling 19. upwelling
The movement of molecules of water is due to the energy possessed by the water molecules.
What is upwelling?Upwelling refers to the rising of ocean water bringing nutrients up from the deep.
Other definitions are as follows:
Water cycle- the cyclical process of the changing state and movement of water around the Earth through evaporation, condensation, and precipitation.As the amount of salt in water increases, the density of the water increases.Deepwater currents -Water circulation created by differences in densityKinetic energy is the type of energy possessed by moving water.Wavelength is the distance from the crest of one wave to the crest of another.Salinity is the amount of dissolved salt in a liquid. Water circulation created by prevailing wind systems.The Gulf Stream is an example of Coriolis effect. Energy what moves forward and through a wave.The length of open sea over which wind can blow steadily to create waves fetchTherefore, the movement of molecules of water is due to the energy possessed by the water molecules.
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The hypothalamus communicates directly with which gland?.
The hypothalamus communicates directly with pituitary gland.
Hypothalamus?Hypothalamus is a small part lied f the brain that is between the inferior and anterior of thalamus. This gland is linked up with the pituitary gland by the stalk-like infundibulum. The pituitary gland comprises of an anterior and posterior lobe and each love produce different hormones in response to signals from the hypothalamus.
posterior lobe contains the ends of nerve cells that is from hypothalamus. The hypothalamus transmitt the hormones directly to the posterior lobe via these nerves, and then the pituitary gland releases them.
Therefore, The hypothalamus communicates directly with pituitary gland.
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what is the function of the organelles identifies in the picture
Answer:
As I remember the answer is B)
hope it helps!!
How many spermatids result from one spermatogonium?.
Four (4) spermatids result from one spermatogonium. Details about spermatogenesis can be found below.
What is spermatogenesis?Spermatogenesis is the process by which sperm cells are produced from the testes of a male animal.
Spermatogenesis involves series of mitotic and meiotic divisions that finally result into the haploid sperm cells.
Spermatids are haploid cells produced by meiosis of a spermatocyte that develops into a spermatozoon.
The spermatogonium divides mitotically into primary spermatocyte which then develops into secondary spermatocyte via meiosis. Each secondary spermatocyte forms 4 spermatids.
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Lilah’s family has a large garden in their backyard. after learning about the role of organisms in an ecosystem, lilah compares the garden to a small ecosystem. what role would each organism play in this garden ecosystem? bird: earthworm: flower: butterfly:
An ecosystem is a self supporting system in which there is a flow of materials and energy.
What is an ecosystem?An ecosystem is a self supporting system in which there is a flow of materials and energy.
Let us now see the role of each organism in the small ecosystem.
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Answer:
Bird: consumer
Earthworm: decomposer
Flower: producer
Butterfly: consumer
Explanation:
Identify the type of energy that is directly causing the water to boil.
sorry it’s not multiple choice and I can’t take a picture of it bc I’m not on the app
Answer:
can you reply with the answer choices?
There is some evidence that a relatively low level of autonomic nervous system arousal may contribute to:.
There is some evidence that a relatively low level of autonomic nervous system arousal may contribute to antisocial personality disorder.
What is an antisocial personality disorder?An antisocial personality disorder is a mental (cognitive) disorder characterized by antisocial behavior.
An antisocial personality disorder can be triggered by both genetic factors and environmental factors.
It has been shown that a low level of autonomic nervous system arousal may influence this personality disorder.
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Can anyone help me please and please thank you
Answer: call me daddy
Explanation:
ill give you a honey bun
Which class of drugs for human immune deficiency virus infection reduces how well HIV genetic material can be converted into human genetic material
The class of drugs for human immune deficiency virus infection which reduces how well HIV genetic material can be converted into human genetic material is called The Nucleoside Reverse Transcriptase inhibitors (NRTIs)
Meaning of HIV and NRTIsHIV also called human immunodeficiency virus is an infection that always attack the body immune system but majorly the white blood cells which is called the CD4 cells. The human immunodeficiency virus destroys these CD4 cells thereby causing a persons immune system to be weak and unable to fight other infections, leading to ill health.
The NRTIs also known as the Nucleoside Reverse Transcriptase inhibitors prevent viral replication, binding and interaction with the CD4+
in conclusion The class of drugs for human immune deficiency virus infection which reduces how well HIV genetic material can be converted into human genetic material is called The Nucleoside Reverse Transcriptase inhibitors (NRTIs)
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fill in the table pls i will give brainliest
Answer:
Decomposers - Oranisms that decompose, or break down, dead or decaying organisms.
Tertiary Consumers - Organisms that obtain nutrients and energy by eating primary and secondary consumers. They are at the topmost level of the food chain.
Secondary Consumers - Organsims that prey on primary consumers for their food and energy.
Primary Consumers - Organisms that feed on primary producers, or plants for energy. They are herbivores, and make up the second trohpic level.
Producers - They are autotrophs, or organisms that produce their own food using light, or chemical energy. Plants are the main producers in many ecosystems. Others include algae, and bacteria.
Explanation:
hope this helps!
What is oxygen and why it is important??((´^ω^))
Explanation:
Oxygen helps organisms grow, reproduce, and turn food into energy. Humans get the oxygen they need by breathing through their nose and mouth into their lungs. Oxygen gives our cells the ability to break down food in order to get the energy we need to survive.