You have a strand of DNA with 5 nucleotides on each side for a total of 10 nucleotides. 4 of the nucleotides are adenine.
pls help
Answer:
According to Chargaff’s rule, the amount of adenine is always equal to that of thymine and the amount of guanine is always equal to that of cytosine. A = T(120), G = C(120) The total number of nucleotides would be 120 × 4 = 480.
The diagram below represents a planet revolving in an elliptical orbit around a star.
Star
Planet →
As the planet makes one complete revolution around the star, starting at the position shown, the gravitational attraction between the star and the planet will:
O Decrease, then increase.
o Increase, then decrease.
Continually decrease
Remain the same
A planet: planet makes one complete revolution around the star
A biologist studies a population of anteaters living in a large nature reserve. The reserve is surrounded by farms where anteaters are not safe, but the reserve is a perfect place for anteaters: there are few predators and lots of ants. The biologist counts the number of anteaters in the reserve every year for twenty years and finds the size of the population does not change much. Which of the following is the best description of what life in this reserve is probably like for these anteaters?a. The anteaters have little or no difficulties obtaining food and raising offspring. ants. Their tongues are 24 inches long and covered with sticky saliva. Anteaters cannot open b. Adult anteaters compete for food and many young anteaters die. theirmouth, and do not have teeth. Even the stomachs of anteaters are unique: unlike most mammals,c. It is impossible to know without actually observing anteaters in the reserve.
Answer:
Adult anteaters compete for food and many young anteaters die
Explanation:
As there are not many predators and the number of ants is abundant, the population of anteaters should grow on a large scale, however, this is not what happens, since the size of the population is the same for twenty years. This shows that the anteater population itself is regulating the size of the population through internal disputes, where anteaters, due to the high birth rate, end up competing for food and shelter, causing the most young and inexperienced individuals to be killed.
List and explain the characteristics of living things
Answer:
Life process
Movement
Respiration
Sensitivity
Growth
Reproduction
reason:
Life process
Explanation
Earthworms
Movement
All living things move in some way. This may be obvious, such as animals that are able to walk, or less obvious, such as plants that have parts that move to track the movement of the sun.
Earthworms use circular and longitudinal muscles to move through soil or along surfaces.
Respiration
Respiration is a chemical reaction that happens within cells to release energy from food.
The food that earthworms eat supplies their body with energy-rich molecules such as glucose. On entering the cells of their body, these molecules are broken down in a series of steps to release energy to be used by the body, producing carbon dioxide and water as waste products.
Sensitivity
The ability to detect changes in the surrounding environment.
Earthworms have light-sensitive cells scattered in their outer skin. Their skin cells are also sensitive to touch and chemicals.
Growth
All living things grow.
Earthworms hatch from eggs and can grow up to a metre or more in length! Some earthworms are also able to regrow small parts of their body that have been lost or injured.
Reproduction
The ability to reproduce and pass genetic information onto their offspring.
Earthworms have both sperm and eggs within their bodies (they are hermaphrodites) but they cannot self-fertilise and need to mate with another individual. After mating, a cocoon containing the fertilised eggs is deposited in the soil.
Excretion
Getting rid of waste.
Earthworms excrete waste from their anus – the last segment of their body.
Nutrition
The intake and use of nutrients. This occurs in very different ways in different kinds of living things.
Earthworm nutrition comes from a variety of sources, depending on their species. Food types include manure, compost, plant material, fungi, microorganisms and decaying animals. They take in food through their mouths.
How much physical activity is recommended to prevent heart disease
Explanation:
moderate and low impact exercise can be beneficial for acid reflux problems. activities like walking, light jogging, yoga, riding a stationary bike, or swimming are good choixes! it can help you lose weight which will alleviate symptoms. my family has a really bad history of heartburn and we like to prevent it through dancing or yoga! (:
What structure has become useless through evolution but still exists,
typically in a much reduced form?
Answer:
A "vestigial structure" or "vestigial organ" is an anatomical feature or behavior that no longer seems to have a purpose in the current form of an organism of the given species. Often, these vestigial structures were organs that performed some important functions in the organism at one point in the past.
Explanation:
Based on the table above, which star can you predict would most likely appear blue?
Sun
Canopus
10 Lacertae
Betelgeuse
Fast plzzzzz
Answer:
10 Lacertae
Explanation:
There are Blue stars, these are the most luminous and the biggest and hottest. Ranging from above 10000 degrees Celsius to several thousand Celsius.
I think the answer should be 10 lacertae , I recently show this question somewhere and this was the answer , I hope this was helpful
When writing the name of an organism which part starts with a capitol letter?
A. Kingdom
B.genus
C.species
Answer:
I believe it is Genus, but I'm not sure.
Explanation:
increasing intracellular cAMP leads to smooth muscle relaxation by: Group of answer choices inhibiting IP3 channels, leading to decreased Ca2 in the sarcoplasm and reduced contraction. Increasing the relative activity of MLCP, leading to a decrease in tension. Activating K channels, increasing K leaking out of the cell which hyperpolarizes it and decreases the likelihood of Ca2 entry. Lower levels of MLCK activity, leading to decreased contraction.
Answer:
1. Inhibiting IP3 channels, leading to decreased Ca2 in the sarcoplasm and reduced contraction.
2. Increasing the relative activity of MLCP, leading to a decrease in tension.
3. Activating K channels, increasing K leaking out of the cell which hyperpolarizes it and decreases the likelihood of Ca2 entry.
Explanation
In smooth muscle, cyclic AMP (cAMP) mediates relaxation because cAMP inhibits a specific kinase required for myosin light chain protein (MLCP) phosphorylation, thereby triggering contraction in the smooth muscles. It has been shown that cAMP inhibits 1,4,5-trisphosphate (IP3)-dependent calcium ions (Ca 2+) release by activation of the cGMP-dependent protein kinase (PKG). PKG proteins act to modulate Ca2+ oscillations by stimulating sarcoplasmic Ca2+-ATPase membrane proteins, increasing Ca2+ in the sarcoplasmic reticulum stores and Ca2+ efflux from the cells, and activate voltage-gated potassium (K) channels, thereby leading to membrane hyperpolarization and reducing Ca2+ entry through Ca2+ channels.
Which of the following describes a lysosome
like animals plants need continuously reproduce themselves?
Explanation:
Plant reproduction is important to people and animals also because if plants were not continuing to make more of themselves then there would not any plants for people and animals to eat. ... Plants and animals and plants and pollinators are interdependent because they all need each other to survive.
Answer:
like animals plants reproduce by there parent plant from seeds there is three ways plants reproduce from wind, water and animal
animals: animal like monkey eat the fruit of the plant and throw the seed away later it will start growing
wind: when a strong winds occur it will carry plants like dandelions, swan plants away from its parents and when the wind is over it will start growing
water: plants like coconut will fall on the sea and plot away from its parent and after it landed on land it will start growing
Explanation:
hope it helps can you mark me as the brainliest have a nice day :)
What have been some contributing factors that have led to increasing temperatures on earth?
Answer:
im sorry bir şey yok khunub
Answer: Here-
Explanation:
Since the Industrial Revolution began around 1750, human activities have contributed substantially to climate change by adding CO2 and other heat-trapping gases to the atmosphere. These greenhouse gas emissions have
answer the correct answers to this assignment.
What is NOT apart of a seed?
Answer:
A) Stigma
Explanation:
This option makes the most sense of all of them. The food storage option is incorrect because food storage is a part of a seed. The stigma is part of producing the seed, not part of the actual seed. The testa is the seed coat (part of a seed). The plumule is also part of a seed (stem or seedling).
Hope it helps!
If a koala bear has sixteen pairs of chromosomes, what are the possible
combinations of genes that will be represented?
Answer:
Explanation:
All vombatid species have 2n = 14 chromosomes; the koala has 2n = 16, which G-banding studies suggest is derivable from a wombat-like karyotype by means of a simple centric fission in the equivalent of the submetacentric wombat second autosomal element
Help me plz on my biology
Answer:
no problem is the first time since I am now in number of people who are you doing today is a day off
Low-carbohydrate diets became popular in the late 1990s and were quickly proclaimed to be a fast and easy method of weight loss. The effectiveness and safety of these diets are dependent on the activity and overall health of the individual as well as the total nutritional content of the diet. However, it is true that in some cases, these diets have been effective. What metabolic effects caused by eating a low-carbohydrate diet can be linked directly to a decrease in fatty acid synthesis and an increase in fatty acid oxidation?
a. release of insulin from pancreatic's cells
b. dephosphorylation of AMPK
c. release of glucagon from pancreatic's cells
d. phosphorylation of AMPK
Answer:
c. release of glucagon from pancreatic's cells
d. phosphorylation of AMPK
Explanation:
Low-carbohydrate diets (LCDs) stimulate the secretion of glucagon by a decrease in the blood glucose concentration. Glucagon is a key hormone secreted by pancreatic cells in the same way as insulin but in an opposite way. This hormone (glucagon) prevents glucose accumulation as hepatic glycogen, while insulin helps to the accumulation of glucose in the liver as glycogen, thereby acting to reduce hepatic glucose output. Moreover, the AMP-activated protein kinase (AMPK) is a kinase protein that mediates the phosphorylation and inhibition of acetyl-CoA carboxylase (ACC) in order to reduce the synthesis of malonyl-CoA, a key molecule that regulates myocardial fatty acid oxidation.
Cape Town, South Africa has a significant water shortage. The amount of water available is not sufficient to support the current human population of the city.
Which three factors most likely contributed to the growing water shortage?
- Strict water management policies.
- Naturally-occurring drought conditions.
- Underdeveloped alternative and supplemental water sources.
- Migrations of residents out of the city and into surrounding areas.
- Higher demand for water than natural reservoirs accumulate each year.
Explanation:
The city's water supply shortage seems to be the result of a combination of physical, social, and political factors. Well below-average rainfall patterns, the increasing unpredictability of weather conditions due to anthropogenic climate change impacts, population growth, and government mismanagement have produced one of the worst urban water crises in recent memory.
here is the reason your explanation from the water shortage now just figure out what the factors are in your answers I would say it's naturally occurring drought conditions because it says on here well below average rainfall patterns and climate change
Water shortage can occur as a result of mismanagement practices by humans or as a result of natural occurrences such as droughts.
What is water shortage?Water shortage refers to a situation in which there is not enough water to meet the daily water needs of the human, animal and plant population in a particular area.
The water shortage issue in Cape Town, South Africa could have been as a result of:
Naturally-occurring drought conditionsUnderdeveloped alternative and supplemental water sourcesHigher demand for water than natural reservoirs accumulate each yearTherefore, water shortage can occur as a result of mismanagement practices by humans or as a result of natural occurrences such as droughts.
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What is the net force? Is it at rest or is it in motion?
ON, and in motion
13N and in motion
0N and at rest
13N and at rest
Answer
0N and at rest :)
Explanation:
7N+6N=13N
10N+3N=13N
Your teacher gives you a task in science class. You must decide which of the five samples you are given are alive or were once alive. One specimen is a crust gray-green object. What is the BEST clue you could use to decide: living thing or not a living thing.
A) Does it move?
B) Does it have DNA?
C) Is it made of cells?
D) Can it make its own food?
The best clue that can be used to decide living thing or not a living thing is the observation of living or dead cells present in the specimen. All the living or dead organisms exhibit cells. Cell is a structural and functional unit of life. The growth and metabolism of living organism are dependent upon a cell. A cell in a life form exhibit organelles and components which are not found in non-living objects
The BEST clue you could use to decide: living thing or not a living thing- is option C. is it made of cells and
The living things have some basic characteristic features of life in them that help in determining if an object or thing is living or nonliving thing. these characteristic can be present in all or some, are as follows:
Cellular organization - made of cell is very basic trait of life of every living being.the ability to reproduce - it is present in almost every living thing it could be sexual or asexual.growth & development - living things grow and developenergy use - use energy to perform various functionshomeostasis - regulate according the environmentGenetic material : it can have DNA as genetic materialthus, there is two options only that present in every living organism that are made of cells and presence of DNA, but for DNA one need to investigate thoroughly so the correct answer is - C) Is it made of cells?
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Which of the following is NOT a function attributed to Glia?
~They prevent toxic substances from reaching the brain.
~They process information going into the neuron
~They eliminate foreign substances inside neurons.
~They provide insulation for axons.
Answer:
~They process information going into the neuron
Explanation:
This is because Glia or neuroglia cells are cells found in the central nervous system that is brain and spinal cord and they did not transmit electrical impulses. Glia cells don't carry information because they don't carry electrical impulses. The cells include epipdymal cells,Schwann cells e.t.c.
They perform four major function and they include; They provide support and supply nutrients and oxygen to the cells,it prevent toxic or foreign substances from entering the neurons,they provide insulation for axons.
2. How does a generator create current?
It is important to understand that a generator does not actually 'create' electrical energy. ... This movement creates a voltage difference between the two ends of the wire or electrical conductor, which in turn causes the electric charges to flow, thus generating electric current.
jellyfish is considered as the deadliest marine animal in the world. how it causes fatal to human?
Answer:
i got stung by a jellyfish :( anyways lol heres why they are fatal to humans
Explanation:
Their venom is considered to be among the most deadly in the world, containing toxins that attack the heart, nervous system, and skin cells. It is so overpoweringly painful, human victims have been known to go into shock and drown or die of heart failure before even reaching shore.
How can the type of bedrock under soil affect the characteristics of the soil?
by absorbing water
by making the soil more fertile
by weathering and becoming new parent material
by providing surface area for nutrient accumulation
Answer:
the second one you had a good weekend
What if cellular respiration did not occur
Answer:
cellular respiration is a process that needs oxygen, so when oxygen is not present, they do not happen, but there is glycolysis, which doesn't need oxygen. the process of glycolysis produces 2 ATP and that is what is needed, so to continue glycolysis, the cells go through fermentation.
Explanation:
THE ANSWER IS FERMENTATION!!!!
Answer:
If cellular respiration does not occur, then the level of oxygen present in the cell will get decreased as a result cell can die due to lack of oxygen. This is because cellular respiration provides the energy necessary for cellular activities.
Explanation:
Question 7 of 10
Our ability to be conscious of some aspects of our environment while
ignoring others is called:
A. the conscious mind.
B. the two-track mind.
C. selective attention.
O D. preconscious attention.
SUBMIT
Selective attention is our ability to be conscious of some aspects of our environment while ignoring others. Therefore, the correct statement is option C.
What is selective attention?
Selective attention is the ability of our mind to be conscious of some aspects while ignoring others. In selective attention, our mind focuses on a certain aspect of the environment and filters out the rest of the aspects. Selective attention is useful as it allows one to focus only on the useful information and responds to an important stimulus in an environment.
Selective attention can be affected by various factors such as our dedication to particular interests and goals. For example, while we are driving in heavy traffic, we will only focus on the potential hazards and ignores all the other information, such as education, career, etc.
Selective attention involves top-down and bottom-up processing. Top-down processing involves the use of information, such as knowledge, goals, etc. to retain our attention, while bottom-up processing involves the use of sensory information to capture our attention.
Therefore, selective attention is our ability to focus on only certain aspects of the environment.
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Question 4 of 10 What is the difference between science and pseudoscience? O A. Science is done only in a laboratory, while pseudoscience is done in the real world." B. Pseudoscience is based on empirical evidence, while science is based on observation and experimentation. C. Scientific claims are biased, while pseudoscientific claims are unbiased. O D. Scientific claims can be verified through observation and experimentation, while pseudoscientific claims cannot SUBMIT
Explanation:
The difference between science and pseudoscience is that science relies on experimentation and data gathered.
Pseudoscience is based solely on one's opinion rather than fact. in the early 1800's, scientists used to speculate what type of a person you are or intelligence by the shape of your head.
Which of the following is a true statement about cellular respiration? (4 points)
Cellular respiration occurs only in plant cells.
Cellular respiration occurs only in animal cells.
Cellular respiration occurs in both plant and animal cells.
Cellular respiration occurs in some plant cells and some animal cells.
Answer:
Cellular respiration occurs in both plant and animal cells.
Explanation:
Cellular respiration occurs in both plant and animal cells, and is an essential process that organisms need to survive.
Cellular respiration is the main way that organisms create energy from the food that they eat.
It occurs in both plant and animal cells because both plants and animals need a way to convert their food into energy forms, such as ATP.
So, the correct answer is that cellular respiration occurs in both plant and animal cells.
Answer:
D
Explanation:
How many kingdoms are there in the classification system?
3
4
5
6
Answer:
5/6
Explanation:
The five are Monera, Protista, Fungi, Plantae, and Animalia
There are six if you include archaebacteria and eubacteria
It depends which one you learned honestly
Which of the following is not a way humans affect the Carbon Cycle?
a
Volcanic eruption which spew tons of carbon dioxide and other carbon rich gases into the air.
b
Conversion of forest and ecosystems into cities and other areas.
c
Burning of fossil fuels through transportation and industry.
d
Increase in farming and ranching of animals, which changes land use and produces Carbon rich gases.
Answer:
D or B
Explanation:
I think this is correct
hope this helps :)
