Explanation:
This process is known as nucleosynthesis. But the universe was still too dense and hot for electrons to join these nuclei and form stable atoms. That's a busy first second. Next we'll find out what happened over the next 13 billion years.
1. Which change is an environmental effect of building dams?
A) weed growth upstream
B) increased fertility downstream
C) increased water temperature upstream
D) sediment builds up downstream
2. How can humans increase the rate of endangered or extinct species?
A) reduce environmental impacts
B) build and populate more zoos
C) pass more laws about land use
D) introduce new predators to an environment
Answer: 1. C) increased water temperature upstream. 2. D) introduce new predators to an environment. brainliest??
Explanation:
The change that is an environmental effect of building dams is increased water temperature upstream, which is in Option C, and humans can increase the rate of endangered or extinct species by reducing environmental impacts, which is in Option A.
What is Human activities on species?Human activities are the primary cause of species endangerment and extinction, so humans must take actions to reduce environmental impacts in order to increase the rate of endangered or extinct species, and by reducing hunting and poaching and restoring degraded ecosystems can help protect endangered species, and reducing carbon emissions and promoting sustainable development can help mitigate the effects of climate change.
Hence, the effect of building dams is increased water temperature upstream, which is Option C, and humans can increase the rate of endangered or extinct species by reducing environmental impacts, which is Option A.
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Which statement provides the best argument against making major changes to the atmosphere to help protect Earth’s resources? There will be less soil and dust in the air as construction increases. The atmosphere will improve as more people move to large cities. Making major changes to the atmosphere can be a costly process. It is more important to protect land and water resources than the atmosphere.
The answer is C. Making major changes to the atmosphere can be a costly process
Explanation:
Making major changes to the atmosphere can be a costly process.
The atmosphere refers to the layer of thin gases that lie above the surface of the earth. Plants and animals depend on the atmosphere for survival because it is region in which gaseous exchange takes place.
Changes to the atmosphere is very costly because it involves changes such as alteration in the kind of cars that are used and devising of alternative sources of energy etc. All these are expensive adventures.
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Plants have many characteristics.
What is responsible for these characteristics?
Select all that apply.
inherited from parents
inherited by sibling plants
affected by the environment
affected by soil position
Answer:bnunununun Noicd
Explanation: skssssss
Which country loaded botulism toxins into bombs? Why is botulism of less concern than anthrax or plague?
Answer:
Botulism is a rare, but life threatening infection caused by the bacteria Clostridium botulinum which spreads through contaminated food, soil, or through open wounds. Ingestion of bacterial spores and toxins are the main reasons behind the symptoms. Symptoms vary depending on the type of botulism. Medications and infected tissue removal methods are available to remove the bacterial toxins.
Explanation:
Which of the following can be explained as a mathematical formula
A. An observation
B. A Scientific theory
C. A Scientific Law
D. A hypothesis
Answer:
B
Explanation:
(blank) measures how much space matter takes up.
Answer:
volume
Explanation:
it's volume I think
what is the outcome of cell signaling
Answer:
Other important large-scale outcomes of cell signaling include cell migration, changes in cell identity, and induction of apoptosis (programmed cell death).
Explanation:
Describe the differences and similarities between lecithin and cephalin. Match the words in the left column to the appropriate blanks in the sentences on the right. ResetHelp Lecithins and cephalins are both sphingolipids; they consist of glycerol with fatty acids forming bonds with the first and second groups. The third group of the forms a with phosphoric acid, which forms another bond with an amino alcohol. In lecithins, the amino alcohol is ; in cephalins, the amino alcohol is usually .
Answer:
Here, we have a composition passage and we are required to fill in the with missing words. The missing words are highlighted in bold format and underlined.
Lecithins and cephalins are both glycerophospholipids; they consist of glycerol with fatty acids forming ester bonds with the first and second hydroxyl groups. The third hydroxyl group of the glycerol forms a phosphate bond with phosphoric acid, which forms another phosphate bond with an amino alcohol. In lecithins, the amino alcohol is choline; in cephalins, the amino alcohol is usually ethanolamine.
Explanation:
Lecithin is a chemical complex composed primarily of fatty acids, glycerol, phosphoric acid, and choline. It can be present in egg yolks, soybeans, sunflower seeds, and plant seed cells and is completely normal. Soybean and sunflower lecithins contain much more important fatty acids than rapeseed lecithin, making them nutritionally more useful.
Phosphatidylethanolamine, also known as cephalin, is a phosphoglyceride that, like phosphatidylcholines and lecithins, is a component of biological membranes. A glycerol residue esterified by two fatty acids and a phosphoethanolamine residue gives rise to phosphatidylethanolamines. They're made by combining CDP-ethanolamine with diglycerides and releasing a CMP molecule. Phosphatidylcholines are formed when S-adenosylmethionine methylates the amine in ethanolamines. They're mostly found in the inner layer of plasma membranes' lipid bilayers.
How many mL of stock solution of 2M NaCl do you need to prepare 100 mL of 0.150M NaCl?
Answer:
7.5mL
Explanation:
Comsidering the definition of dilution, 7.5 mL of the stock solution of 2 M are required to prepare 100 mL of 0.150 M solution.
Dilution is a procedure by which the concentration of a solution is lowered. It is achieved by adding more solvent to the same amount of solute.
Then the amount of solute does not vary, but the volume of the solvent does: when more solvent is added, the concentration of the solute decreases, as the volume of the solution increases.
A dilution is mathematically expressed as:
Ci×Vi = Cf×Vf
where
Ci: initial concentration Vi: initial volume Cf: final concentration Vf: final volume
In this case, you know:
Ci= 2 M Vi= ? Cf= 0.150 M Vf= 100 mLReplacing in the definition of dilution:
2 M×Vi= 0.150 M×100 mL
Solving:
[tex]Vi=\frac{0.150 M x 100 mL}{2 M}[/tex]
Vi= 7.5 mL
In summary, 7.5 mL of the stock solution of 2 M are required to prepare 100 mL of 0.150 M solution.
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brainly.com/question/20113402?referrer=searchResults brainly.com/question/22762236?referrer=searchResultsDuring the rock cycle, ______________ follows erosion. *
Answer:
deposition
Explanation:
Hope this helps and have a great day!!!!
[tex]\small\sf{During\: the\: rock \:cycle, \:{\underline{\bf{\red{\:\:\:\:Deposition\:\:\:\:}}}}follows\: erosion.}[/tex]
Which of the following is true?
A
The flow of gases varies directly with airway resistance.
As lung compliance increases, the energy required to breathe increases
Surfactant increases the cohesiveness of water molecules therefore decreasing
the surface tension of the alveolar fluid.
O Infant Respiratory Distress Syndrome occurs when there is a lack of surfactant
produced. THis is common in premature infants.
In healthy individuals, friction is a major factor affecting pulmonary ventilation
Answer: Infant Respiratory Distress Syndrome occurs when there is a lack of surfactant produced. This is common in premature infants.
Explanation:
Respiratory distress syndrome (RDS) is a well-known breathing disorder that is common in premature infants. It happens when there is a lack of surfactant produced in the baby's lungs which is quite bad because surfactant enables babies to breathe when they are born by keeping the lungs expanded.
It is common in premature infants because the lungs only begin to produce surfactant in the third trimester so babies that are born prematurely did not get to produce sufficient quantities. If not treated immediately, brain damage could follow.
Which of the following scenarios will decrease the genetic variation of a population?
Answer:
population of birds suddenly decrease their frequency of sexual reproduction.
Explanation:
This is the answer to quiz accordingly.
Carbon is found in the
atmosphere in which form?
A. calcium carbonate
B. carbon dioxide
C. carbonic acid
CARBON IS FOUND IN YHE ATMOSPHERE IN THE FORM OF carbon dioxide or CO2
AG CLASS
Which of the following professionals is most likely to be hired to mow the grass and lawns of an urban park and perform common maintenance chores?
landscape architect
landscape contractor
landscape worker
landscape designer
Jaguars are a keystone species in the Amazon. Describe how they can be so essential to the ecosystem despite
being significantly less abundant than many other species.
Answer:
jaguars are keystone species because they feed herbivorous species that might decimate the plants of the ecosystem
Explanation:
Keynote species are species that help to maintain the homeostasis of the ecosystem so if they lack then the ecosystem would change drastically. Moreover, a top predator is a predator that occupies the highest trophic level in the food chain. Jaguars are both keystone species and top predators that feed herbivorous species, maintaining the health of the food chain by eliminating the excess of primary consumers that otherwise would feed too many plants (i.e., primary producers) which produce and store energy at the bottom of the food chain.
Please select the word from the list that best fits the definition
Grouping items together to keep observations organized
inferring
predicting
classifying
observing
Answer:
classifying
Explanation:
for example like classifying the files from SVU classifying them keeps them more organized and labeled kind of like identifying them classifying them keeps them all together in one group
Which of the following statements are true about the esophagus? Select all that apply.
The esophagus is a bony tube.
The esophagus is a muscular tube.
The esophagus moves food from the mouth to the small intestine.
The esophagus moves food from the mouth to the stomach.
Which of the following statements are true about the esophagus?
The statements that are true about the esophagus are:
The esophagus is a muscular tube.The esophagus is the muscular tube of the digestive tract that develops from the pharynx to the stomach.
The esophagus moves food from the mouth to the stomach.This part of the digestive system is traversed by food, which enters through the mouth, passes through the pharynx, crosses the esophagus and reaches the stomach.
In this process, the esophagus has an active participation, since its walls contract to promote the advance of the food.
Therefore, we can conclude that the esophagus is a muscular tube that moves food from the mouth to the stomach.
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Which statements describe the effects of indoor pollution? Select two options.
Ultrafine particles cause poor health.
Nose hairs and mucus catch all the particles before they reach the lungs
Ultrafine particles are absorbed by the lungs when people breathe.
Ultrafine particles contribute to more than 20,000 deaths per year in the United States.
Most ultrafine particles can be seen with the unaided eye.
Answer:
A and C
Explanation:
The negative health impacts of indoor pollution are caused by ultrafine particles that are inhaled and absorbed by the lungs. So, the correct options are A and C.
What are Indoor pollution?Indoor air pollution, which can be as much as ten times worse than outside air pollution, is indeed the degradation in indoor air quality caused by hazardous chemicals and other elements. This is because enclosed rooms encourage the accumulation of possible contaminants more than do open ones.
The main contributors to indoor air pollution include: Bioaerosols, building materials, and combustion Although radon, asbestos, pesticides, toxic substances, organic volatile compounds, and environmental tobacco smoke are all regarded as serious indoor pollutants in industrialised countries, developing countries are primarily affected by the combustion byproducts of biomass fuels.
The negative health impacts of indoor pollution are caused by ultrafine particles that are inhaled and absorbed by the lungs.
Therefore, the correct options are A and C.
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Anoles are a family of IIzards found throughout the Americas. Green anoles, Anolis carolinensis, are native to i specific area of Florida. In this
area, the primary territory of green anoles was once along the ground and in low-level branches. However, the Introduction of brown anoles,
Anolis sagrei, from Cuba forced green anoles to shift o their territory to the tops of trees. The branches at the treetops are smoother and thinner
than those close to the ground. Over time, the toe pads of the green anoles have become larger and stickler.
What is the best explanation for the change In green anoles' toe pads?
Some individuals In the green anole population had mutations that helped them survive and reproduce In the new conditions,
so thelr genes were passed on to the next generation.
O B. Gene flow between the green and brown anoles provided the green anoles with traits that helped them survive and
reproduce, and those tralts were passed on to the next generation.
The feet of the green anoles became larger and stickler as they used them, which helped the green anoles to better survive,
reproduce, and pass the tralt on to the next generation.
O D. The change in conditions caused mutations In green anoles that gave them beneficial tralts for survival and reproduction, and
those mutations were passed on to the next generation.
Reset
Next
dmentum. All rights reserved.
ED INTL
Answer: D
Explanation:
Answer:
Some individuals in the green anole population had mutations that helped them survive and reproduce in the new conditions, so their genes were passed on to the next generation.
Explanation:
One scientist kept 20 grams of a radioactive material in a container. What will be the
mass of the radioactive material left in the container after 2 half lives?
40 grams
4 grams
10 grams
5 grams
After one half-life, there would be 10 g of the material left.
After two half-lives, there will be 5 g of the material left.
Therefore, 5 grams is the correct answer.
What is the unit of grams?The basic unit of mass or weight in the metric system is the gram. The most frequently used units of mass or weight used in the Canadian food industry are the gram and kilogram. Some of the types of grams are:-
Unit Abbreviation Mass (Weight)
kilogram kg 1000 grams
hectogram hg 100 grams
decagram dag 10 grams
gram g 1 gram
Therefore, last option is the correct answer.
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Why do you need to breathe in oxygen?
a.Oxygen is needed to split glucose.
b.Oxygen provides energy that is to be put into ATP.
c.Oxygen pulls electrons through the process of cell respiration.
d.Oxygen reduces the NAD+ and FADH to produce NADH and FADH2
Answer:
a
Explanation:
Breathing in of oxygen is respiration. And respiration is the taken in of oxygen to break down glucose and energy in form of ATP as by product
Which statement describes a non-native species?
A. It is a poor predator.
B. It increases stability of a community.
C. It has been introduced to a new area.
D. It has no permanent home.
Answer:
c
Explanation:
a non-native species is a species that isn't familiar/native to the place. if it is introduced or moved to a new area, then it is non-native.
The more diverse an ecosystem is-
A- the more threatened it’s populations are
B- the more similar the species will be
C- the more sustainable it is
D- the fewer varieties of species are present
Answer:b
Explanation:
i’ll give brainliest :) !!
Root hairs, a part of the root tissue system, does what?
Answer:
The third option is correct.
Hope this helps.
Which of the following measures would improve energy
efficiency/conserve energy?
1. Increasing fuel economy standards on cars
2. Purchasing larger in-home water heaters
3. Unpluging electronics when not in use
4. Eating more locally sourced food
5. Removing tax incentives on home-solar purchases
O i, ii, iii, iv, and v
O i and iv only
O i, iii, and iv
O i, ii, and iii
Answer:
l
Explanation:
This category of endangerment has so few individual survivors that the species could soon become extinct:
A. Invasive species
B. Threatened species
C. Endangered species
D. Endemic species
E. Red list species
Answer:
Endangered Species
Explanation:
C. Endangered species
Describe the flow of a river from beginning to the end
Use the following terms: headwaters, springs, tributaries, confluence, and mouth
The flow of river begins with the Headwater .
Springs are warmer water bodies compared to rivers,
The rivers connect to another river to form a confluence
Rivers flow into larger water bodies in the form of tributaries.
The mouth of the river flows from a larger source to a smaller body of water.
Describing the flow of a riverThe flow of river begins with the Headwater ( the beginning of the river ), springs are warmer water bodies compared to rivers, When the rivers flow they connect to another river ( confluence ) which flow into larger rivers in the form of tributaries while the mouth of the river flows form a larger source to a smaller body of water.
Hence we can conclude that the flow of river is as described above
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What is the genetic make-up of an organism?
Answer:
Explanation:
In a broad sense,genetic makeup of an organism can be regarded as the
"genotype" . It gives description about
complete set of genes an organism.
If we narrow it, it can be reffered to as "alleles" , this is is variant forms of a gene which is been carried by an organism. For instance, Humans can be regarded as diploid organisms, i.e there are two alleles at their each genetic position along with one allele which is been inherited from each parent. genotype of a specific gene is been represented by "Each pair of alleles". Instance of this is of "sweet pea plants" the gene responsible for flowering color posses two alleles, One of the alleles is responsible for coding purple flowers, symbolized with
uppercase letter F, the other allele is responsible for coding of white flowers
symbolized with Lowercase letter" f "
There are three possible genotypes which could be featured for Different population of a sweet pea, which are
✓FF
✓Ff
✓ ff.
Genotype of each plant have some contribution to the phenotype, by saying this, we mean outward appearance of its flowers.
Natural selection will only lead to evolution if it allows for an organism to ________.
a. possess advantageous traits.
b. compete for resources.
c. produce offspring.
d. all of the above.
Answer:
b
Explanation:
Natural selection will only lead to evolution if it allows for an organism to process traits, compete for resources and produce offspring. The correct option is d.
What is natural selection?Natural selection is indeed an evolutionary mechanism. Lifeforms which are better adapted to their surroundings are much more likely to flourish and pass on the genetic traits that helped them thrive. Species change and diverge as a result of this process.
Natural selection, Darwin proposed, is a framework for evolution in which genetic variants that help support life, reproduce and survive as well as become more prevalent in a population over time.
Natural selection will occur if three conditions are met, according to Darwin's theory. These conditions, which are outlined as,
Represent a struggle for survival.Exhibit variation.Undergo inheritance.These are the conditions that are said to be both necessary and sufficient for natural selection.
Natural selection will only result in evolution if an organism is able to process traits, compete for resources, and produce offspring.
Thus, the correct option is d.
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what is process of forming an exact copy of the dna molecule called?
