Answer:
see below
Explanation:
The data indicates that hydrogen and helium make up nearly all of the nuclear matter in the universe. The most abundant element, hydrogen, accounts for 74% of the mass while helium contributes 25%. Heavier elements comprise less than 1% of the total. Basically , the hydrogen-helium abundance helps us to model the expansion rate of the early universe. If it had been faster, there would be more neutrons and more helium. If it had been slower, more of the free neutrons would have decayed before the deuterium stability point and there would be less helium.
A group of similar cells with common function is known as a(n)
Answer:
tissue
Explanation:
tissue. is the right answer
Hunting in the area causes all of the shrews in the area to be
killed. How would this affect the rest of the organisms in the
food web?
Answer:
C: the number of crickets would increase
Explanation:
If less shrews were to exist than their prey would increase because they have less predators.
What is the defrence between animal sharp and round ears?
It's also known as the pinna or auricle. The outer ear's shape helps to collect sound and direct it inside the head toward the middle and inner ears. Along the way, the shape of the ear helps to amplify the sound — or increase its volume — and determine where it's coming from.
(hope this helps ✌)
Jolly Green Giant is heterozygous for Green Bean Feet. His wife is
recessive for her Yellow Bean feet. What percentage of the off spring will be green feet?
Answer:
50%
Explanation:
heterozygous for Green Bean Feet : Gg
recessive for her Yellow Bean feet : gg
punnet square
G g
g Gg gg
g Gg gg
quizlet
When many minerals are formed from where as water?
Answer:
When the water evaporates, it leaves behind a solid layer of minerals
An atom whose valence electrons conform to the octet rule is:
Answer:
less likely to form any bond with another atom
Explanation:
Cellulose is found throughout the cell walls of plant cells. Cellulose makes cell walls rigid, which indicates that cellulose is a
carbohydrate.
lipid.
nucleic acid.
protein.
Answer:
Carbohydrate
Explanation:
Cellulose is a polysaccharide composed of a linear chain of β-1,4 linked d-glucose units so it is a carbs
What characteristic of the cell membranes determines what gets into the cell and doesn't?
Answer:
launamcdaniel The characteristics of the cell membrane that determines what gets into a cell and what doesn't is the properties of the phospholipid bilayer and its proteins
Which of the following is a density-independent regulating factor?
a
competition
b
weather
c
resource availability
d
predation
Answer:
b
Explanation:
Weather is a density-independent regulating factor.
Competition, resource availability, and predation are all density-dependent regulating factors.
Give two reasons-
Bacteria can be considered as a chain between animals and plants
Bacteria can be considered as a chain between animals and plants because it give benefits both plant and animal.
What is unique about bacteria?Bacteria has unique features that can benefits both plant and animal. Bacteria like Rhizobium make soil fertile for plants whereas Lactobacillus bacteria help to convert milk into curd.
So we can conclude that Bacteria can be considered as a chain between animals and plants because it give benefits both plant and animal.
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Which sources would preserve the soft tissue of an early mammal?
Answer:
Amber, tar pits, and ice
Explanation:
This is what it says in my notes for edge 2020
what is science and what is momentum
Answer:
science is the use of technology and momentum is conserved in school
A plant can have green (G) or yellow (g) leaves. It can also have a long (K) or
short (k) stem. A scientist is preparing a Punnett square for a dihybrid cross
of a plant with a genotype GgKk. What possible gametes can the plant
produce?
O A. GK, Gk, gk, gK
• B. GK, GG, KK, kK
• C. GK, Gk
O D. GK, gk
The possible gametes the plant can produce would be GK, Gk, gK, and gk. The correct option is A.
Gametes formationIn order to determine the possible gametes from the parent with the genotype GgKk, we need to cross the two traits in a monohybrid cross.
Thus: Gg x Kk
GK Gg gK gk
Thus, the possible gametes are GK, Gg, gK, and gk.
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Question 14 of 15
Which do scientists think would lead to more powerful hurricanes?
O A. Warmer tropical landmasses
OB. Warmer arctic oceans
O C. Warmer tropical oceans
1 Identify the hormones (and their functions) of the hypothalamus and the anterior and posterior pituitary glands in homeostasis.
2 Detect the endocrine glands on models and charts and their histological properties in the microscope.
3. Analyze the effects of aging, imbalances, and diseases of the endocrine system.
1.The hormones of the hypothalamus and the anterior and posterior pituitary gland are antidiuretic hormone and oxytocin and ADH.
What hormones are produced by the hypothalamus and their functions?The hormones produced by the hypothalamus and secreted by the neurohypophysis are antidiuretic hormone and oxytocin. Antidiuretic hormone promotes an increase in urine concentration, as it ensures greater reabsorption of water by the kidneys.
2. The endocrine glands on models are :
hypothalamus.Hypophysis. Thyroid gland.Parathyroid glands.Islet cells of the pancreas.Adrenal glands. Testicles in men and ovaries in women.What are the general characteristics of the endocrine glands?The main feature of endocrine glands is the absence of excretory ducts. The service product produced by endocrine cells is transported to the extra diffusion space, reaching the interior of blood vessels.
3. When an imbalance of the endocrine system occurs, it results in Hormonal disorders can be caused by various factors such as diabetes, psychological changes, stress, eating disorders, regular use of medication and cancer.
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Which process connects glycolysis and the citric acid cycle?What role does cellular respiration play in the carbon cycle?
Answer:
Glycolysis and the TCA cycle are linked by the linking reaction catalysed by pyruvate dehydrogenase complex. Pyruvic acid produced at the end of glycolysis is transported to the matrix of mitochondria, where it undergoes oxidative decarboxylation to produce acetyl CoA. Acetyl CoA enters the TCA cycle.
Explain further the idea that indicates that all of life is related and can be divided into three major clades, often referred to as the three domains. How does that relate to the common confusion indicating that "humans didn't come from monkeysLinks to an external site."?
All of life can be divided into three major clades because it is believed that all branches of the tree of life have the same evolutionary origin.
What is evolution?Evolution is descendence with modification, which generally is due to the process of natural selection.
Evolution indicates that all organisms derive from an ancestral organism (it is related to the cell theory).
In conclusion, all of life can be divided into three major clades because it is believed that all branches of the tree of life have the same evolutionary origin.
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Which factor can decrease the rate of a chemical reaction?
O low activation energy
O high pressure
O low temperature
O high concentration of enzyme
Activity: Climate-Change Essay
Hello Teresa,
Goal: Write an essay about your opinion on anthropogenic global warming. The paper should be at least three pages long and typed, following MLA format.
The following should be included in the essay:
Your opinion on global warming and climate change
.
Scientific studies to support your opinion (Choose specific aspects such as solar maximums, ice-core samples, computer modeling, etc.)
.
At least three sources of scientific studies with notes about who funded and published the research (How does the funding and publishing of the rese
Descriptions of potential causes and potential consequences of global warming and climate change
.
At least five recommendations for the future
Carbon dioxide (CO2) is the most significant of the greenhouse gases. Volcanic outgassing, organic matter burning and natural decay, and aerobic (oxygen-using) organisms' respiration are all natural sources of atmospheric CO2. On average, these sources are counterbalanced by a collection of physical, chemical, or biological processes known as "sinks," which remove CO2 from the atmosphere. Terrestrial flora, which absorbs CO2 during the photosynthesis process, is a significant natural sink.
What is the normal level of CO2 in the atmosphere?CO2 levels in the air and probable health issues are as follows: The average outdoor air level is 400 parts per million. 400–1,000 ppm: typical concentration found in inhabited spaces with adequate ventilation. Drowsiness and poor air quality are linked to levels of 1,000–2,000 ppm.
Human activities, on the other hand, increase atmospheric CO2 levels primarily through the combustion of fossil fuels—primarily oil and coal, and secondarily natural gas—for transportation, heating, and electrical power generation, as well as the creation of cement. Forest fires and land clearing are two further examples of anthropogenic origins.
Anthropogenic emissions currently account for around 7 gigatons (7 billion tons) of carbon released into the atmosphere each year. Anthropogenic CO2 emissions account for about 3% of total CO2 emissions from natural sources, and this magnified carbon burden from human activities far surpasses natural sinks' balancing capacity (by as much as 2–3 gigatons per year).
Effects:Sea levels are rising, and the oceans are warming. Droughts that last longer and are more intense endanger crops, wildlife, and freshwater supplies. The richness of life on our world is threatened by climate change, from polar bears in the Arctic to sea turtles off the coast of Africa.
Ways to reduce global warming?
Improvements to energy efficiency and vehicle fuel economy, increases in wind and solar power, biofuels from organic waste, setting a price on carbon, and protecting forests are all potent ways to reduce the amount of carbon dioxide and other gases trapping heat on the planet.
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what is inertia and how it is solved
Answer:
The inertia is directly proportional to the mass of the object or to the velocity if the object is in motion. According to Newton's first law of motion, an object not subjected to any net external force moves at constant velocity and will continue to do so until some force causes its speed or direction to change.
Explain how isolation causes the making of new species?
Answer:
Explanation:
When organisms become isolated the two groups are also not able to reproduce together, so in one group are not necessarily found in the other group. The longer the groups are isolated, the more different they are. They eventually become different species.
Question 4 (Mandatory) (1 point) ✓ What color would we see in the nodule if the bacteria are reproducing but
are not actively fixing nitrogen?
Question 5 (Mandatory) (1 point)
What color would we see in the nodule if the bacteria are not reproducing
but are actively fixing nitrogen?
A reddish pink color indicates that the bacteria are active and fixing nitrogen.
What is nitrogen fixation?The term nitrogen fixation has to do with the ability of certain bacteria to trap and fix nitrogen into the root noodles of leguminous plants. This is an active part of the nitrogen cycle.
Thus, a reddish pink color indicates that the bacteria are active and fixing nitrogen.
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Please tell me the following correct answers if I am wrong. Multiple Choice
The step of the scientific method that comes after conducting experiments is to
Answer:
The answer is conclusion
Explanation:
After you have conducted your experiment, you will form your conclusion to prove whether or not your theory is correct
Julia is trying to place a duckbilled platypus, lizard, bear, and monkey on a phylogenetic tree. She learns that the duckbilled platypus, bear, and monkey are classified as mammals. She also learns that mammals share a common ancestor with reptiles. Which additional piece of information will be most helpful to Julia to properly build her phylogenetic tree
The additional information required is that the platypus lays eggs like a reptile.
What are mammals?The animals classified as mammals are those animals that give birth to their young ones alive and also possess the mammary gland. As such, they can breastfeed their young ones.
Since the mammals share a similar ancestry as the reptiles, the additional information that Julia requires is that the platypus lays eggs like a reptile.
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Do you think that the heart muscle has the same structure as the arm muscle?
Answer:
No.
Explanation:
Heart muscles are involuntary muscles, so you can't control them. You can, however, control arm muscles. They are called voluntary muscles.
A microscopic image of plant cells is shown. An arrow points to the cell membrane.
Which is a function of the cell structure that is labeled X?
Answer:
The function of cell membrane is to allow only certain substances to go in or out the cell.
Some weight-loss diets are believed to speed up the body's metabolism to help a person lose weight quickly. Other diets rely on very low-calorie intake for rapid weight loss. Is it important, when changing one's diet, to know how the cells in your body will react to the introduction of new substances or removal of other substances?
Answer:
It is super important
Explanation:
It is critically important that one must know how and what your body needs before introducing new things or removing old things. For eg. people tend to go on keto diets (high fats). But, one must know that our brain neurons require very high energy and need constant sugar. Therefore, if you intake very low sugar in keto diet, you might actually harm yourself more than benefit.
3. Provide examples from your model of conservation of matter through Earth's spheres.
4. Identify the limitations of your carbon model in accounting for all of Earth's carbon.
3. Matter is lost on earth but energy is transformed from one form to another. The ultimate source of energy is the sun and then its is transformed from one form to another. The matter is not converted from one form to another form, it gets destroyed as the plant and dies. So, we can say the energy is conserved on earth but the matter gets destroyed.
4. The carbon model is the flow and the movement of the carbon and its compound in the atmosphere. Climate change is the limitation of the carbon model.
What is climate change?A climate change is a variation in the weather and the climate pattern due to a change in temperature and other atmospheric factors. It will lead to a transformation in the flow of carbon in the environment.
Increased carbon in surroundings increases temperature and results in a change in seasons and humidity levels, leading to changes in the rainfall.
Therefore, climate change is the limitation of the carbon model.
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Which statement best describes the kinds of questions science can answer
Answer:
Science can answer only questions about the natural world.