Answer:
D. Aids
Explanation:
Aids is one of the most deadliest diseases in the world. When you contract aids, it's designed to infect the cells that try to destroy it, it's a whole zombie apocalypse in your body and you don't even know it.
It attacks and weakens the immune system, and our immune system defends our bodies against infections, but HIV is extremely strong and it over powers the system, I'm not sure if there's an immune system strong enough to fight HIV or aids.
Human activity, such as the burning of coal and oil, refining petroleum in factories has impacted which of the following
A) carbon cycle
B) water cycle
C) nitrogen cycle
D) oxygen cycle
Answer:
carbon cycle
Explanation:
Carbon is an essential element in the bodies of living organisms. It is also economically important to modern humans, in the form of fossil fuels.
Carbon dioxide—\text {CO}_2CO
2
start text, C, O, end text, start subscript, 2, end subscript—from the atmosphere is taken up by photosynthetic organisms and used to make organic molecules, which travel through food chains. In the end, the carbon atoms are released as \text {CO}_2CO
2
start text, C, O, end text, start subscript, 2, end subscript in respiration.
Slow geological processes, including the formation of sedimentary rock and fossil fuels, contribute to the carbon cycle over long timescales.
Some human activities, such as burning of fossil fuels and deforestation, increase atmospheric \text{CO}_2CO
2
start text, C, O, end text, start subscript, 2, end subscript and affect Earth's climate and oceans.
Answer:
carbon cycle
Explanation:
what is some sun bears facts
Answer:
Bears are extraordinarily intelligent animals. ...
Bears grieve deeply for others. ...
Bears have excellent senses of smell, sight and hearing. ...
Some species of Asiatic bear build nests in the trees. ...
Bears care deeply about family members.
Explanation: Grizzly bears possess a bite force of over 1200 PSI, which is enough to crush a bowling ball, or an iron skillet.
What is migration? Give an example.
Answer:
Migration is when animals move on a regular cycle. For example, caribou in the Arctic go south in winter and return in summer when it's warmer. Many birds migrate, such as geese and storks. Migration is the travelling of long distances in search of new habitat.
Explanation:
please help me out.
Answer:_____________
Explanation:_____________
What organic molecules have the function of being part of cell membranes?
Answer:
Cholesterol and steroid hormones. Cholesterol, an important component of cell membranes, is an amphipathic molecule because of its polar hydroxyl group. Cholesterol is also a precursor to the steroid hormones, such as testosterone and estradiol
Explanation:
Neurogenesis is especially evident in brain areas related to learning and memory. Based on this statement, you might expect neurogenesis to be particularly prevalent in the brain's:
Cortex, especially neo-cortex and pre frontal cortex. Where neuroplasticity can occur.
Help me with this question plsssss answer this in a complete paragraph
Answer:
It's possible.
Explanation:
It said if they were nearly as smart as humans. They never said if they were as capable as Humans. Naturally, some would be smarter than others so some might be able to live here but others might have to have their own country. So, it is likely that some Neanderthals will be able to live in modern society, though not all.
what does osmosis mean
Water molcules diffuse from a dilute solution to a more concentrated solution through a semipermeable membrame.
______ makes up tissues in the body?
how does plan b work?
Answer:
Plan b is a backup plan if your original plan doesn't work:)
Explanation:
ASAP I WILL MARK BRAINLIST
What is the purpose of transcription?
A.It is the first step in DNA synthesis.
B.It is the last step in protein synthesis.
C.It is the first step in protein synthesis.
D.It is the last step in DNA synthesis.
Answer:
D
Explanation:
it is the last step in DNA synthesis
Answer:
it is A because it's the first step
In a certain species of flowering plant, the purple allele P is dominant to the
Yellow allele p.
A student performed a cross between a purple-flowered plant and a
yellow-flowered plant. When planted, the 146 seeds that were produced from the
cross matured into 87 plants with purple flowers and 59 plants with yellow
flowers.
Calculate the chi-square value for the null hypothesis that the purple-flowered
parent was heterozygous for the flower-color gene. Give your answer to the
nearest tenth.
Answer:
3.4
Explanation:
If the purple flower is heterozygous:
Pp x pp
Pp Pp pp pp
the expected ratio of purple flower offspring to yellow flower offspring would be 50:50.
Chi square = [tex]\frac{(O - E)^2}{E}[/tex] where O = observed frequency and E = expected frequency.
phenotype O E Chi square
purple 87 73 [tex]\frac{(80-73)^2}{73}[/tex] = 0.67
yellow 59 73 [tex]\frac{(59-73)^2}{73}[/tex] = 2.68
Total = 0.67 + 2.68 = 3.35 to the nearest tenth = 3.4
Degree of freedom = 2 - 1 = 1
Critical Chi square value (alpha = 0.05) = 3.84
SInce the critical Chi square value is greater than the calculated value, the null hypothesis is accepted.
what is the difference of the atomic masses of the heaviest and lightest elements in the table?
Answer:
The lightest chemical element is Hydrogen and the heaviest is Hassium. The unity for atomic mass is gram per mol. ... There you can find the metals, semi-conductor(s), non-metal(s), inert noble gas(ses), Halogens, Lanthanoides, Actinoids (rare earth elements) and transition metals.
Explanation:
The difference of the atomic masses of the Uranium which is the heaviest and hydrogen which is the lightest element in the table is 237.
The lightest element in the periodic table is hydrogen having atomic mass of 1 amu whereas Uranium is the heaviest element present in the periodic table having atomic mass of 238 amu. The difference between atomic masses of the heaviest i.e. uranium and lightest element i.e. hydrogen in the table is 237. In hydrogen, there are only one proton and no neutron is present inside the nucleus while on the other hand, in uranium there is 92 protons and 146 neutrons are present in the nucleus which make it heaviest element.
https://brainly.com/question/19894581
Write a few sentences about how being small helps cells survive, and being made of many small cells help large organisms maintain homeostasis?
Answer:
It is important for the cell to be able to bring necessary nutrients immedriately where it needs to and to be able to dispose of harmful byproducts of the cell process. It is equally important to be able to regulate water concentration.
Answer:
For the first question, you have to first understand how cells work. Cells transport nutrients and water through their cell membrane, and it's their only way of transporting things they need in and out of their interior. Hence, a larger surface area would be best for cells to survive.
You might ask, but then why wouldn't it be better for cells to be bigger if a larger cell membrane is beneficial to their survival? After all, as the cell gets bigger, their cell membrane gets bigger too!
Unfortunately, you'd be forgetting one thing: the insides of the cell, otherwise known as the volume of the cell, grows too. So, it becomes a mathematical question at this point: imagine a cube. If you doubled it's side length, your surface area would grow by 4 times ([tex]2x \cdot 2x = 4x^{2}[/tex]), and your volume would grow by 8 times! ([tex]2x \cdot 2x \cdot 2x = 8x^{3}[/tex])
Hence, if the cell got bigger, it's volume would grow faster than the surface area, and the cell would start to build up carbon dioxide and other waste materials.
This is the main reason why being small helps cells survive. Of course, there are many other reasons, like compactness, efficiency and survivability, but this is the main reason.
Of course, if you're smart, you'd have already discovered one thing: this is exactly the reason for your second question as well. Since a large organism being made of one or few large cells would greatly decrease surface area-to-volume ratio, the efficiency would plummet and the large organism would die. Hence, many small cells would help large organisms maintain homeostasis.
Explanation:
Hope this helped!
5. What is the response of an ectotherm, such as a lizard, when it encounters cold temperatures?
It will move to a warmer spot.
It will remain in the cold environment.
It will run toward the stimulus.
It will become hungry.
Answer: It will move to a warmer spot.
Explanation:
An ectotherm will move to a warmer spot if they found themselves in cold temperatures because they are not tolerating good cold temperatures. If they do not have any other options they will run toward the stimulus which means that they will try to bury themselves and hide from cold temperatures and in that way they will have to remain in the cold environment.
GUYS I NEED HELP PLZZ
Which statement does not describe
checkpoints?
O Normal checkpoints assess damage to DNA.
O Defective checkpoints result in the death of the cell.
O Cell checkpoints can fail in mitosis and meiosis.
O Faulty checkpoints may lead to abnormal cell growth.
Answer:
Defective checkpoints result in the death of the cell.
Explanation:
What information does the author use to support the point of view in "The Problem with Plastic" that is not included in "Make a Change: Alternatives to Plastic Straws"
Answer:
The environmental threat posed by the egregious amounts of plastic waste that have accumulated over the years, and that will likely continue to increase unabated.
The enormous amount of plastic waste that has collected over time and that will probably continue to grow unabatedly poses a hazard to the ecosystem.
What is point of view?A logical argument supported by substantial evidence is a scientific worldview. We need consider what science actually is in order to comprehend why.
Science is a subject that seeks to comprehend the natural world through methodical observation and experimentation.
Because it is a standardized process, the scientific method is significant. Because the steps in the scientific method are methodical, scientists carry out experiments in a predictable way. Thus, such tests may be conducted more widely.
"The Problem with Plastic" suggests that the massive amount of plastic garbage that has accumulated over time and that will likely continue to grow unabatedly poses a threat to the ecology. It is not mentioned in "Make a Change: Alternatives to Plastic Straws."
Thus, this is the meaning of the given quotation.
For more details regarding point of view, visit:
https://brainly.com/question/11983141
#SPJ2
Which of the following is found in both cellular respiration and
photosynthesis?
A. Glycolysis
B. The Calvin Cycle
C. The Krebs Cycle
D. Electron transport chains
The process found in both cellular respiration and photosynthesis is Electron transport chain.
Photosynthesis is the process whereby green plants obtain their food using energy from sunlight. Cellular respiration is the process whereby living organisms obtain energy by breaking down food molecules in their cells. Photosynthesis occurs in the chloroplast organelle where a process called electron transport chain (ETC) synthesizes ATP (energy). The process of ETC occurs in the mitochondria organelle, which is the site of cellular respiration. Therefore, process found in both cellular respiration and photosynthesis is Electron transport chain.Learn more at: https://brainly.com/question/13721588?referrer=searchResults
meinsarde Shat you'll analye is from the National Oceanic and Atmospheric Administration (NOAA). Open this
page and select the Human Influence tab. Read the article and list three conclusions the author draws about human
movement in cimate change. In two to three sentences describe the evidence cited that explains each conclusion.
Answer:
hope it helps you plz mark me brilliantest
Explanation:
Impacts from climate change are happening now. These impacts extend well beyond an increase in temperature, affecting ecosystems and communities in the United States and around the world. Things that we depend upon and value — water, energy, transportation, wildlife, agriculture, ecosystems, and human health — are experiencing the effects of a changing climate.
water
food
health
environment.
Answer:
Impacts from climate change are happening now. These impacts extend well beyond an increase in temperature, affecting ecosystems and communities in the United States and around the world. Things that we depend upon and value — water, energy, transportation, wildlife, agriculture, ecosystems, and human health — are experiencing the effects of a changing climate.
water
food
health
environment.
Explanation:
credit- the person above
How do you think you impact climate change?
Answer:
I think that I impact climate change is that we are hurting our planet including ourselves use a lot of fossils fuel and a lot of energy and we mostly used a lot of plastic and it is killing our ocean environment.
Explanation:
What are four Main parts of the skeletal system
Answer:
bones, ligaments, tendons, and joints.
Explanation:
Answer:
connective tissues : bones, ligaments, tendons, and joints.
Explanation:
true or false & pleasee number them so i know which goes to which question THANKSS <3
Answer:
1. true
2. true
3. true
4. true
5. true
6. true
hope it helps!
Answer:
True for all 6
Explanation:
Which of the following is not a true statement about seed bearing plants?
The wind and animals can plant the seed in different locations.
Some seed bearing plants produce flowers.
Seed bearing plants produce spores.
Some seed bearing plants produce cones.
Answer:
Seed bearing plants produce spores is not a correct statement.
Explanation:
The plants have different mechanisms of reproduction. The more primitive plants, for example, tend to reproduce through spores that are dispersed over a wide area by the wind. The plants that evolved later in history tend to produce seeds through which they reproduce, and the seeds can be dispersed in numerous different ways.
Some of the plants that bear seeds produce flowers, some fruits or vegetables, while some cones. The reason why they produce such things is to be more attractive for animals because by eating or getting near them the animals manage to disperse the seeds over a wide area. The plants of this type that have the smallest seeds don't really need animals though, as the wind is able to easily pick up and move their seeds around with ease.
Answer: best guess: A. The wind and animals can plant the seed in different locations.
Explanation: I hope this helps<3
What happens to the sugars (carbohydrates) that are made during photosynthesis in plants?
two answers.
Answer:
the sugar produced by photosynthesis can be stored, transported through out the tree, and converted into energy which is used to power all cellular process. Respiration occur occurs when glucose combines with oxygen to produce useable cellular energy
What other molecules are carbon atoms in Before the chemical change?
Answer:
Carbon atoms in ethanol become part of carbon dioxide molecules.
Explanation:
Hope this helps :)
the diagram below shows a strand of DNA matched to a strand of mRNA. what process does this diagram represent?
a. mutation
b. respiration
c. translation
d. transcription
Which event occurs after erosion of Earth’s surface?
Surface material breaks down into smaller pieces.
Very dense particles settle faster than low-density particles.
Large particles are carried away to a new location by ice and glaciers.
Round particles form new landforms more slowly than flat particles do.
Answer:
Very dense particles settle faster than low-density particles.
Explanation:
Erosion is the process of destroying and destroying existing forms in relief.
Erosion is the destruction of the existing structural connections of the rock mass due to the action of exogenous forces and the change of its shape.
The term erosion in the elementary sense should mean changes in the surface layer of the soil relief, which occur as a result of rain, snow, frost, temperature differences, wind, and running water, or due to the work of anthropogenic factors.
Answer:
B
Explanation:
What are barrier islands? What protects the barrier islands?
Answer:
Barrier islands form in three ways. They can form from spits, from drowned dune ridges or from sand bars. Longshore drift is the movement of sand parallel to the shore caused by the angle of the waves breaking on the beach. When a storm such as a hurricane digs an inlet through the spit a barrier island is formed. Barrier islands are a specific type of island that lie parallel to the coastline of a larger mainland. They are separated from shore by a bay, lagoon or sound and because of where they are situated, they protect the coast from being directly impacted by storm waves or winds.
Explanation:
just a simple multiple choice question. its times, ple help
Answer:
do you remember the questions?
Explanation:
Explain how humans obtain the energy and matter they need in order to survive.
Answer:
Humans get the energy and matter they need to survive from the food they eat. The foods humans eat contain carbohydrates, vitamins, and protein. All of those components are broken down by the human body with the aid of digestion.
Explanation: