Answers
Answer:
C. Only 1, 3 and 4
Explanation:
Deforestation is the process of cutting down trees by man, which eventually lead to the the sparseness of trees in otherwise forested areas. The reasons for cutting trees by man may include: habitation by man, clearing the land for agriculture or grazing, or using the timber for fuel, construction or manufacturing as well as mining of minerals.
Deforestation leads to many adverse effects on both man and his environment. These adverse effects include:
Loss of biodiversity in the forests which may lead to extinction of species.; when forest areas are cleared, plants and animals who live in these forests lose their homes and some may eventually die off due to inability to survive in other habitats
Increase in temperature of the earth: Trees serves to cool the earth by removing some gases which cause heating of the earth from the earth. Such gases include carbon dioxide. When these tree are removed, these gases accumulate in the atmosphere leading to increase in earth's temperature.
Also, since tree absorb some gases while releasing others into the atmosphere, when these trees are cut, there would be an imbalance of these atmospheric gases.
Related Questions
Which is NOT excreted by your skin?
A. heat
B. urine
C. sweat
D. salt
Answers
The skin does not excrete urine
It does excrete some heat when the body becomes to hot. It excretes sweat to cool off the body when the body is hot. Salt is excreted with sweat.
Hope that helps!
Because the bodies of animals contain carbon molecules, the animal kingdom stores huge amounts of carbon. Which of the following processes returns carbon from this vast reservoir to the active carbon cycle?
Answers
Answer:
burning fossil fuels and decomposition of dead organisms
Explanation:
A significant amount of the carbon in the biosphere is returned to the carbon cycle through decomposition by fungi and bacteria. Much of what is not decomposed becomes fossil fuels. When humans burn fossil fuels for energy, carbon is returned to the atmosphere.
The process that returns carbon from the vast reservoir of animal bodies to the active carbon cycle is called decomposition, which is present in Option A, as when an animal dies, its body is broken down by decomposers, such as bacteria and fungi.
What is decomposition?The decomposition process is essential for the cycling of carbon in the environment. When an animal dies, the organic molecules that make up its body become available to decomposers. These decomposers use enzymes to break down the complex organic molecules into simpler compounds, such as sugars, amino acids, and fatty acids.
Hence, the process that returns carbon from the vast reservoir of animal bodies to the active carbon cycle is called decomposition, which is present in Option A.
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complete question is below
Because the bodies of animals contain carbon molecules, the animal kingdom stores huge amounts of carbon. Which of the following processes returns carbon from this vast reservoir to the active carbon cycle?
A)decomposition
B) nitrogen fixation
which of the following statements best describes the end result of bacterial conjugation?
Answers
The best statement that describes the end result of bacterial conjugation is: "The transfer of genetic material between two bacterial cells, resulting in one cell acquiring new genetic information from the other."
Bacterial conjugation is a mechanism of horizontal gene transfer in bacteria where genetic material, typically in the form of plasmids, is transferred from a donor bacterium to a recipient bacterium. The process of conjugation involves physical contact between the two bacterial cells through a structure called a sex pilus, which allows for the transfer of genetic material.
The end result of bacterial conjugation is that the recipient cell acquires new genetic material from the donor cell. This transferred genetic material can include genes that provide the recipient cell with new traits or functions. These traits can be beneficial for the survival and adaptation of the recipient cell in different environments.
The acquired genetic material can provide the recipient bacterium with advantages such as antibiotic resistance, the ability to metabolize new substances, or the production of specific enzymes or toxins. This exchange of genetic material through conjugation plays a significant role in bacterial evolution and adaptation.
Conjugation is a key mechanism for the spread of antibiotic resistance genes among bacterial populations. It allows bacteria to transfer resistance genes to other bacteria, promoting the development of antibiotic-resistant strains. This has implications for human health and the effectiveness of antibiotic treatments.
In summary, bacterial conjugation results in the transfer of genetic material between bacterial cells, allowing for the acquisition of new traits by the recipient cell. This mechanism contributes to bacterial diversity, adaptation, and the spread of antibiotic resistance.
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The __
domain consists of a DNA recognition
helix and two antiparallel beta sheet structures.
Answers
Answer:
GCM
Explanation:
I majored in Biology
what is the best way to revise
Answers
Answer:
to revise on ur books is read a little u can and then rest ur brain
Explanation:
please mark as brainliest
One of the first explanations of evolution was put forth by a French biologist, Jean-Baptiste
Lamarck. He theorized that animals, in responding to different environments, adopted new
habits. Their new habits caused them to use some organs more and some organs less, which
resulted in the strengthening of the former and the weakening of the latter. New characters
thus acquired by organisms over the course of their lives were passed on to the next
generation. His theory proposed this process of use and disuse, repeated over many
generations, was how species evolved.
He was wrong. Why?
Answers
Answer:
Traits acquired during an organism's lifetime cannot be passed
Explanation:
The law of use and disuse of organs as postulated by Jean Lamarck was wrong due to the fact that environmentally acquired characters cannot be passed to offspring.
Changes to organisms that are not the level of the gene cannot be passed to the offspring. For example, a wrestler that got big muscles due to constant work out cannot pass big muscles to his offspring. The offspring will need to work out in order to have big muscles. This is because big muscles in the wrestler is environmentally acquired.
Only changes that happen to the genome of an organism (mutation) can be passed to offspring.
like animals, cyanobacteria have a circadian rhythm. by analyzing the genes that maintain bio- logical clocks, scientists concluded that the 24-hour rhythms of humans and cyanobacteria reflect convergent evolution (see concept 26.2). what evidence would have supported this conclusion? explain.
Answers
The evidence that would have supported the conclusion that the 24-hour rhythms of humans and cyanobacteria reflect convergent evolution is the genetic similarity of the genes that maintain the biological clocks in both organisms.
Convergent evolution is the process by which different organisms independently evolve similar features or adaptations in response to similar environmental pressures or selective pressures.
In the case of circadian rhythms, if scientists found that the genes that regulate the biological clocks in humans and cyanobacteria were similar, it would suggest that both organisms have evolved similar clock mechanisms in response to similar selective pressures, such as the daily cycle of light and dark.
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C. What is the special requirement of planting paddy saplings for transplantation?
Answers
Answer:
Raise seedlings in special mat nurseries or in seedling trays.
What organelle is labeled ?
Answers
One of the most common causes of severe food shortages in developing and least developed countries is:________
Answers
In developing and least developed nations, acute food shortages are frequently brought on by drought. The brain and nervous system sustain the least amount of organ damage during prolonged fasting.
The definition of drought"A period of exceptionally dry weather sufficiently extended for the lack of water to cause substantial hydrologic imbalance in the afflicted area" is the definition of a drought. -Meteorology Glossary (1959).
Why does drought occur?Low precipitation over a long period of time causes droughts. Drought is caused by a variety of atmospheric causes, including climate change, ocean temperature changes, jet stream changes, and local topography changes.
How can drought be avoided?Droughts can be avoided in part by being aware of how much water you consume each day. Using a water-saving technique like turning off the faucet while you wash your teeth or watering your lawn in the morning to reduce evaporation.
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Complex carbohydrates are a, composed of sugars linked together. b. found in grain products. c. good sources of energy, d. all of the above.
Answers
Answer:
D
Explanation:
Its d
Please help! Will mark brainlisttt !!!!
Answers
Answer:
It is not possible for Shaun's aunt and the fella to have a child with large eyes because either parent needs at least one dominant allele for large eyes to have a possibility of a child with large eyes
during the replication process how is the supercoiling DNA corrected?
Answers
Two solutions of different concentrations of glucose are separated by a membrane that allows both glucose and water to pass through. when dynamic equilibrium is reached, there will be:____.
Answers
water and glucose molecules will move across the membrane in order to balance the concentrations of glucose on either side of the membrane until equilibrium is reached. The final equilibrium state will be one in which there is an equal concentration of glucose on both sides of the membrane.
The two solutions of different concentrations of glucose are separated by a membrane that allows both glucose and water to pass through.
When dynamic equilibrium is reached, there will be an equal concentration of glucose on both sides of the membrane.
In an osmosis process, a semi-permeable membrane is used.
This membrane allows only the solvent (usually water) to pass through it, but not the solute (e.g. salt, glucose, etc.).
The movement of the solvent is from high to low concentration in order to balance the concentration on both sides of the membrane, which occurs spontaneously.
The solution that has the highest concentration of solutes is the hypertonic solution, whereas the solution that has the lowest concentration of solutes is the hypotonic solution.
In this situation, we're told that the membrane allows both water and glucose to pass through, indicating that it is not a traditional semi-permeable membrane.
As a result, water and glucose molecules will move across the membrane in order to balance the concentrations of glucose on either side of the membrane until equilibrium is reached.
The final equilibrium state will be one in which there is an equal concentration of glucose on both sides of the membrane.
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Jackson creates the model shown in the diagram. He forms a clay mountain at the bottom of a plastic container and adds water to the container. Jackson then places a lid on top of the container and a petri dish filled with ice cubes on top of the lid. Next, he places a lamp over the container and turns it on.
a. What observation would indicate to Jackson that water is being cycled within the model?
b. Explain why the observation is evidence that water is being cycled within the model.
Answers
a. Jackson would observe condensation on the lid of the container.
b. The observation of condensation on the lid of the container is evidence that water is being cycled within the model. When the lamp heats up the water in the container, the water evaporates and rises up to the cooler lid where it condenses and forms droplets. These droplets then fall back into the container, completing the cycle of evaporation, condensation, and precipitation. This process mimics the natural water cycle on Earth where water evaporates from oceans and other bodies of water, forms clouds, and then falls back to Earth as precipitation.
solve it according to the question please.
the subject is petroleum, so please solve it regardibg
this.
F- Explain the global carbon-climate cycle during the Cretaceous period. (Write only one paragraph describing what happened during the Cretaceous geological period in order to have good source rocks.)
Answers
During the Cretaceous period, high temperatures and abundant vegetation resulted in increased \(CO_2\) levels, leading to the accumulation of organic matter and the formation of good source rocks for oil and gas.
During the Cretaceous period, spanning from approximately 145 to 66 million years ago, the global carbon-climate cycle played a crucial role in the development of favorable conditions for the formation of good source rocks. The period was characterized by high global temperatures and abundant vegetation, resulting in increased carbon dioxide \((CO_2)\) levels in the atmosphere.
The elevated \(CO_2\) levels fueled vigorous photosynthesis, leading to the accumulation of organic matter in marine and terrestrial ecosystems. As this organic matter was buried and subjected to heat and pressure over millions of years, it transformed into oil and gas, creating potential source rocks. The warm climate and prolific vegetation during the Cretaceous, along with the subsequent geological processes, contributed to the formation of the rich hydrocarbon reserves that are vital to our energy resources today.
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The correct question is:
Explain the global carbon-climate cycle during the Cretaceous period. (Write only one paragraph describing what happened during the Cretaceous geological period in order to have good source rocks.)
What is biodiversity? Please explain. I’ll give literally anyone branliest...I NEED HELP ASAP!
Answers
Answer: Biodiversity is the variety and variability of life on Earth. Biodiversity is typically a measure of variation at the genetic, species, and ecosystem levels. Terrestrial biodiversity is usually greater near the equator, which is the result of the warm climate and high primary productivity.
Explanation:
Answer:
The variety of life in the world or in a particular habitat or ecosystem. (It is a noun).
Explanation:
Explain how the carbon, oxygen, and nitrogen cycles are similar.
Answers
Answer:
The carbon, oxygen, and nitrogen cycles are all biogeochemical cycles. They show the movement of elements through living and nonliving components of the Earth. Carbon, oxygen, and nitrogen, are essential components of life that pass through organisms and nonliving components, but are never used up.
Explanation:
example on edge.
Carbon, oxygen and nitrogen cycles are similar because:
They contain essential components of lifeThey show how biological and chemical phases occur, etcCarbon cycle is a biogeochemical process through which carbon is exchanged between the atmosphere to ensure the continuity of life.
Oxygen cycle is similar to carbon cycle in the sense that in this case it is oxygen that is exchanged as a biological compound for the mutual benefit of species and environment
Nitrogen cycle is the process of converting nitrogen into different chemical forms as it circulates through the different ecosystems.
These three cycles are similar in the sense that they are components of life.
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Which of the following choices correctly shows an example of the way energy flows in an ecosystem? A. Rattlesnake to Hawk to Kangaroo Rat to Fungus to Cactus B. Fungus to Hawk toRattlesnake to Kangaroo Rat to Cactus C. Cactus to Kangaroo Rat to Rattlesnake to Hawk to Fungus D. Cactus to Fungus to Kangaroo Rat to Hawk to Rattlesnake
Answers
ANSWER:
C. Cactus to Kangaroo Rat to Rattlesnake to Hawk to Fungus
EXPLANATION
Living organisms in an ecosystem obtain energy by feeding on one another. As one organisms feeds on the other, ENERGY FLOWS. However, the flow of energy is UNIDIRECTIONAL. The flow of energy is represented by a FOOD CHAIN where the arrow signals which organism is feeding on which.
According to this question, a typical example of energy flow in a terrestrial ecosystem is as follows:
Cactus → Kangaroo rat → Rattlesnake → Hawk → Fungus
In the above food chain, energy flows as cactus plant (producer) is fed on by kangaroo rat (primary consumer), which is fed on by rattlesnake (secondary consumer), which is fed on by hawk (tertiary consumer). Hawk is decomposed by fungi (decomposer) when it dies. Energy flows in this direction.
Hence, an example of the way energy flows in an ecosystem is represented by Cactus to Kangaroo Rat to Rattlesnake to Hawk to Fungus
Which organism would be classified as an arthropod? crab starfish snail earthworm
Answers
Answer: Crab, because an arthropod has no spine but an external skeleton.
What kind of skeleton is like armor?
Answers
Answer:
An exoskeleton is the outermost layer of the skeletal system and the most defensive/resistant to force.
the reproductive organ that produces gametes is called a
Answers
pls help and ill mark brainly
Students are using cubes to model how surface area to volume ratio impacts cellular homeostasis. The students have created two models of equal size. Model A is one solid cube. Model B is a cube composed of nine smaller cubes. Each cube represents a cell. Which cube would have difficulty maintaining homeostasis?
A) Model A because the larger surface area to volume ratio of the cell makes moving
nutrients and waste into and out of the cell more difficult.
B) Model B because the smaller surface area to volume ratio of the cells makes
moving nutrients and waste into and out of the cells more difficult.
C) Model B because the larger surface area to volume ratio of the cells makes
moving nutrients and waste into and out of the cells more difficult.
D) Model A because the smaller surface area to volume ratio of the cell makes moving nutrients and waste into and out of the cell more difficult.
Answers
The cube that would have difficulty for maintaining homeostasis is Model A because the smaller surface area to volume ratio of the cell makes moving nutrients and waste into and out of the cell more difficult (Option D).
What is the cellular homeostatic state?The cellular homeostatic state refers to the state of internal equilibrium in the cell which is mainly due to the ability to perform all metabolic activities such as the intake of nutrients and elimination of waste products.
A higher number of smaller cell increase the surface volume cell ratio, thereby many cells have more chances to maintain homeostasis than a larger single cell.
Therefore, with this data, we can see that the cellular homeostatic state is based on a state of internal equilibrium which can be reached by having a suitable surface volume ratio in multicellular organisms.
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A population started with 100 individuals. There were 14 births, 20 deaths, and 2 new individuals immigrated into the population. As a percentage, what rate did the population change?
Answers
Answer: r = -4%
Explanation: use the formula r = (B - D) + (I - E) /
population
which means growth rate = (Births - Deaths) + (Immigration - Emigration) /
populatio
plug the numbers in so you get r = (14 - 20) + (2 - 0) /
100
So the growth rate is -4%
Tim and Jan have freckles but their son Mike does not have. Show with a punnete square how this is possible. Tim and Jan have two more children, what is the probability that both will have freckles?.
Answers
Answer:
Parents are heterozygous for the trait, and this is how they got a child with no freckles.The probability that the two other children will have freckles is 9/16Explanation:
Due to technical problems, you will find the complete explanation in the attached file.
What is an accurate description of aerobic respiration?
a process that uses oxygen to break down molecules to absorb energy
a process that uses oxygen to break down molecules to release energy
a process that breaks down molecules without the use of oxygen to absorb energy
a process that breaks down molecules without the use of oxygen to release energy
Answers
Answer:
B. a process that uses oxygen to break down molecules to release energy
Explanation:
Answer:
B. a process that uses oxygen to break down molecules to release energy
is the following statement true or false?
the tissue of the capsule in a moss is diploid.
Answers
The given statement is true, the tissue of the capsule in a moss is diploid.
Funaria is moss and it belongs to the dominion Bryophyta. Funaria continues switching among the gametophytic department and sporophytic department phase. The pill and seta belong to the sporophyte which undergoes meiosis to provide spores. In mosses, the dominant level is the haploid generation (the gametophyte). This way that the green, leafy gametophytic tissue is haploid (has handiest one set of chromosomes). Each sporophyte plant consists of a pill, that's the middle of spore formation; a stalk; and a foot that attaches the sporophyte frame to the end of the gametophyte. Eventually, the diploid spores are launched and, upon a hit germination, develop into some other moss plant.
Thus, the given statement is true.
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A patient with a known case of AIDS would likely have periodic ________ to assess the immune status.
A.
Western blot test
B.
erythrocyte sedimentation rate (ESR)
C.
CD4 cell count
D.
enzyme-linked immunosorbent assay (ELISA
Answers
A patient with a known case of AIDS would likely have periodic CD4 cell count tests to assess the immune status.
CD4 cell count is an important measure of immune function and is commonly used in monitoring individuals with HIV/AIDS. CD4 cells, also known as T-helper cells, play a crucial role in coordinating the immune response. In individuals with AIDS, the HIV virus specifically targets and destroys CD4 cells, leading to a weakened immune system.
By regularly monitoring CD4 cell counts, healthcare providers can evaluate the progression of the disease and determine the appropriate course of treatment. A declining CD4 cell count indicates a worsening immune function and may necessitate adjustments in antiretroviral therapy to manage the condition effectively.
While the other options mentioned, such as the Western blot test, erythrocyte sedimentation rate (ESR), and enzyme-linked immunosorbent assay (ELISA), are relevant in the diagnosis and management of HIV/AIDS, they are not specifically used for assessing the immune status in the context of periodic monitoring.
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What are the parts of an bacteria
Answers
Answer:The numbered parts are: (1) pilus, (2) plasmid, (3) ribosome, (4) cytoplasm, (5) cytoplasmic membrane, (6) cell wall, (7) capsule, (8) nucleoid, and (9) flagellum (Source: LadyofHats [Public domain] via Wikimedia Commons). One of the most important structures of a bacterial cell is the cell wal
Explanation:
How can mutations lead to human evolution?
Answers
Answer:
How Mutations Can Lead to Human Evolution?
Explanation:
A mutation is the random change in the nucleotide sequence or in the DNA organization (genotype) of a living being, [1] that produces a variation in its characteristics and that is not necessarily transmitted to the offspring. It occurs spontaneously and suddenly or due to the action of mutagens. This change will be present in a small proportion of the population (variant) or the organism (mutation). The genetic unit capable of mutating is the gene, the unit of hereditary information that is part of DNA.
In multicellular beings, mutations can only be inherited when they affect reproductive cells. A consequence of mutations can be, for example, a genetic disease. However, although they may seem harmful in the short term, mutations are essential to our long-term existence. Without mutation there would be no change, and without change life could not evolve.
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