Answer:
The number of electrons in the outermost shell of a particular atom determines its reactivity, or tendency to form chemical bonds with other atoms.
Explanation:
Electrons in an atom's outermost shell determine the chemical reactivity of atoms; this is true as the electrons in an atom's outermost shell, also known as its valence electrons, play a crucial role in determining the chemical reactivity of the atom.
What is an electron?The chemical reactivity of an atom depends on its ability to gain or lose electrons, which is determined by the number of valence electrons in its outermost shell. The valence electrons are the ones that are involved in chemical bonding, which is the process by which atoms combine to form molecules. Atoms with incomplete valence shells tend to be more reactive because they have a strong tendency to gain or lose electrons to achieve a stable configuration. A stable configuration is achieved when an atom's outermost shell is completely filled with electrons.
Hence, Electrons in an outer shell determine the chemical reactivity of atoms; this is true as the electrons in an atom's outermost shell, also known as its valence electrons,
learn more about the elecrtons here.
https://brainly.com/question/1255220
#SPJ2
How are the carbon, nitrogen, and oxygen cycles similar?
a.
They are all biogeochemical cycles.
b.
They all involve an interaction between living and nonliving elements.
C.
They are all part of the Earth system.
d.
All of the above.
Answer:
The carbon, nitrogen, and oxygen cycles are similar in the sense that:
They are all biogeochemical cycles.
They all involve an interaction between living and nonliving elements.
They are all part of the Earth system
BIOGEOCHEMICAL CYCLES:
Biogeochemical cycles has to do with the interrelationship of certain elements with their biological, chemical and geological environment.
The elements that are cycled in this processes are oxygen, nitrogen, carbon, phosphorus etc.
The cycling of these elements occur on Earth and they involve an interaction between living and nonliving components of the Earth.
Therefore, the carbon, nitrogen, and oxygen cycles are similar in the sense that:
They are all biogeochemical cycles.
They all involve an interaction between living and nonliving elements.
They are all part of the Earth system
Explanation:
Answer:
D
Explanation:
A specific type of bacteria increases exponentially with a growth rate of r=0.4 per hour. Assume there are 16 bacteria present at t=0. When will the population reach 10000?
The population would reach 10000 at the time of 25,000 hours
Calculation of exponential growth rateThe exponential growth rate of the bacteria = 0.4 /hr
The number of bacteria at time 0 = 16 bacteria
The time for the bacteria population to reach 10000 = ?
But if , 1 hour = 0.4 bacteria
X hour = 10000
Make X the subject of formula;
X = 10000/0.4
X= 25,000 hours
Learn more about growth rate here:
https://brainly.com/question/1437549
#SPJ1
How can wax worms impact the environment
Answer:
Waxworms are not an end-all solution to plastic waste, however. Wax larvae are pests for bees, naturally feeding off honeycomb and running the risk of reducing their populations – and those of plants and crops.
Why do proteins help you gain muscle
Answer:
proteins help you gain muscle because of the amino acids found in them.
proteins also carry antibodies, which help fight against infection, which eventually leads to muscle. Overall, proteins are super impotrtant.
Explanation:
Here are some foods that contain amino acids to help you gain muscle
meat and fish
eggs
dairy products
seeds and nuts
legumes like beans and lentils.
(My last answer got removed for "copyright" even though I typed it myself, so I made another ;)
what do you think might happen to a bird that doesn't have a beak that can be used to eat the food that exists in a certain area?
Answer:
Down below
Explanation:
The bird would either die, find other food, or evolve to have the beak it needs. It's a matter of natural selection. If the bird doesn't learn that it needs a certain beak, then the species will die off. However, if the bird learns that it needs a certain type of beak, it's species will evolve to have this beak. In the off-chance that the bird doesn't evolve, it will most likely find another source of food to survive.
Hope this helps! If you have anymore questions, I am free to answer them! :D
What was Hans Molisch’s hypothesis?
Answer:
Molisch’s test is a chemical test which is used to check for the presence of carbohydrates in a given analyte. This test is named after Czech-Austrian botanist Hans Molisch, who is credited with its discovery. Molisch’s test involves the addition of Molisch’s reagent (a solution of ∝-naphthol in ethanol) to the analyte and the subsequent addition of a few drops of concentrated H2SO4 (sulphuric acid) to the mixture.Help a brother out the final day of exams pls someone
What type of energy transformation takes place during cellular respiration? Use complete sentences to explain how energy is conserved during cellular respiration.
Answer: Chemical Energy
Explanation: Cellular respiration is the process of transforming chemical energy into forms usable by the cell or organism
Answer:
In this exercise, we will have to explain the transformation of energy in cellular respiration, as:
The type of energy transformation takes is chemical energy and the energy is conserved because The ATP molecule stores energy from cellular respiration and photosynthesis for immediate consumption.
Recalling how cellular respiration works we have:
Cellular respiration is a process by which organisms obtain energy to perform the most diverse activities. Cellular respiration occurs in mitochondria, in the presence of oxygen, and is divided into three steps: glycolysis, the citric acid cycle (or Krebs cycle), and oxidative phosphorylation.
How is energy stored in ATP?
Energy is stored in the bonds between phosphates. The molecule acts as a cellular currency, that is, it is a convenient form of energy transformation. The ATP molecule stores energy from cellular respiration and photosynthesis for immediate consumption.
Explanation:
Write the complementary DNA sequence
GAA TCG AGT
Answer:
CTT AGC TCA
Explanation:
Opposite DNA molecules pair with each other
Adenine (A) pairs to Thymine (T)
Cytosine (C) pairs to Gaunine (G)
Since 2000, pet owners in Florida have been releasing their pet pythons into the wild once they become too large to keep in their homes. The pythons do not have any natural predators and feed on native wildlife such as rabbits and racoons. They consume resources that would normally be available to plants and animals in the Florida ecosystem. What would the pythons be considered?
What is compost manure ?
Which statements describe situations where organisms interact and depend on each other for survival?
Choose all correct answers.
1. Tree frogs use plants as protection from predators. The plants receive nothing from the tree frogs.
2. Zebras eat grass, Zebras spread the grass seeds to new locations in their droppings as they move with their herd.
3. Birds find shelter in trees as they build their nests and raise their young. Birds also eat the fruit on trees and then spread the seeds to new places in their droppings.
4. The oxpecker feeds on the insects that surround the rhinoceros, The rhinoceros has fewer bugs surrounding it.
Answer:
Predation is an interaction in which one organism, the predator, eats all or part of the body of another organism, the prey.
Herbivory is a form of predation in which the prey organism is a plant.
Predator and prey populations affect each other's dynamics. The sizes of predator and prey populations often go up and down in linked cycles.
Predators and prey often have adaptations—beneficial features arising by natural selection—that are related to their interaction. For prey, these include various defenses and warning signals, such as bright coloration.
Explanation:
how are antibiotics able to target the bacteria cells but not the healthy cells within your body ?
Answer:
See below
Explanation:
Antibiotics:Medications used specifically against bacteria are called antibiotics.Difference between bacterial cells and our healthy cells:
Bacterial cells have cell walls. However, Healthy cells of our body lack cell wall.Why are antibiotics able to target bacterial cells:
Antibiotics are specific in their functions. They are designed as to attack only bacterial cells. They attack the cell wall of the bacterial cell most often. Since, the healthy cells of our body lack cell wall, antibiotics are not able to attack healthy cells of our body.In this way, our body cells are safe from the attack of antibiotics.
[tex]\rule[225]{225}{2}[/tex]
PLEASE ANSWER 60 POINTS
Which of these is the strongest evidence that all organisms on Earth evolved from a common ancestor?
A. All organisms inherit instructions for their development in DNA.
B. Many species have body parts with homologous structures.
C. Major groups of organisms share a specific type of embryo.
D. The fossil record shows an example of every organism that ever lived.
Why is sunlight important to all aquatic ecosystems?
Pick a answer
---------------------
A. Sunlight allows fish to see their surroundings, even at depth.
B. All of the other answer choices
C. Aquatic producers need sunlight to make food and release oxygen.
D. Aquatic organisms cannot carry out life processes in the dark.
Answer:
Sunlight stimulates the growth of phytoplanktons which belong to the first trophic level in an aquatic ecosystem pyramid. If these do not exist, aquatic ecosystem would also disappear.
I Will mark Brainliest: Which area is the most common source region for cold, dry air masses that move over NYS? 1) North Atlantic Ocean 2) Gulf of Mexico 3) Central Canada 4) Central Mexico
Answer:
1
Explanation:
north Atlantis ocean is the most common source region for cold
Which of the following statements about the Hardy-Weinberg principle are true?
Select all that apply.
It assumes certain forces are acting on a population.
It is used to model genetic equilibrium.
It assumes certain forces are not acting on a population.
It is used to model gene flow.
Answer:
-It assumes certain forces are not acting on a population
-It is used to model genetic equilibrium
It assumes certain forces are not acting on a population and It is used to model genetic equilibrium.
Thus, Mendelian genetics are discussed in the context of populations of diploid, sexually reproducing individuals in the Hardy-Weinberg Theorem.
This theorem argues that allele frequencies in a population won't change from generation to generation under a particular set of assumptions.
The anticipated genotype frequencies are p2, 2pq, and q2 if a population has two alleles at a particular site and the allele frequencies are p and q. Once a population is in Hardy-Weinberg equilibrium, its frequency distribution won't vary from generation to generation.
Thus, It assumes certain forces are not acting on a population and It is used to model genetic equilibrium.
Learn more about Hardy weinberg, refer to the link:
https://brainly.com/question/29776155
#SPJ2
What does band mean in Edwin Drake’s lucky strike
Answer:
Edwin Drake was the first person to strike oil in America. His world-famous well was drilled in Titusville, PA, a small town in Crawford Count
Answer:
Drake met stockholders of the Pennsylvania Rock Oil Company, which claimed a lease on land near Titusville, Pennsylvania, where oil had been gathered from ground-level seepages for medicinal uses. The company hoped to make money selling the oil for lighting, and to this end the stockholders sent Drake to Titusville to assess the viability of the enterprise. Letters of introduction to businessmen in the area referred to Drake as “Colonel,” and for the rest of his life he was known as Colonel Drake. After Drake returned to New Haven with a favourable report, the New Haven stockholders formed a new company, the Seneca Oil Company, sold some stock to Drake, and sent him back to develop the site.
Explanation:
can anybody help me
pic below
Answer:
Option D- A long, sticky tongue
Since the tounge is sticky all the ants stick to it and Anteater eats them.
Answer:
D
Explanation:
A long, sticky tongue helps the anteaters to stick its tongue long enough into mounds containing ants/termites which get stuck onto its tongue, thereby helping it get food.
Overall garbage burns ______.
A: Easily
B: With much effort
C: With difficulty
D: By requiring large amounts of additional fuel
Answer:
a
Explanation:
it really depends on what is in the garbage but any garbage release methane which is heavily flammable. (why fires are prohibited near landfill sites)
In Meiosis, what phase does crossing over, independent assortment, and non disjunctions occur? What are the two types of gametes produced in meiosis? How is genetic variation created in meiosis? What are the possible conditions that could arise is as a result of nondisjunction? What are the phases of meiosis?
Tongue curling in humans is a dominant genetic trait. What are the possible genotypes and phenotypes of their children and the percent chance for each ? Include genotypic and phenotypic ratios
I WILL MARK YOU BRAINLIEST
please help!!
** peptide bond picture is for 1 and 2**
1. In this CHEMICAL reaction, what happens to WATER?
a.water is not involved in this reaction in any way
b.water goes both "in/enters" and "out/exits" of the reaction
c.water goes "into" or "enters" the reaction
d.water comes "out of" or "exits" the reaction
2. In this METABOLIC reaction, what happens to ENERGY?
a.energy goes "into" or "enters" the reaction
b.energy is not involved in this reaction in any way
c.energy comes "out" of or "exits" the reaction
d.energy goes both "in/enters" and "out/exits" the reaction
3.Which pathway depicts transport of a hydrophobic molecule?
Answer:
1. d.water comes "out of" or "exits" the reaction
2. a.energy goes "into" or "enters" the reaction
3. Path A
Explanation:
1) Peptide bond synthesis is dehydration reaction which means water is "dehydrated" meaning released when the reaction occurs.
2) Anytime we want to join things together we gotta use energy, these processes are anabolic reactions such as making sugars, proteins, lipids, in our cell. Since we are making protein here, we need to put energy into the reaction.
3) Path A is hydrophobic b/c they directly diffuse thru cell membrane to attach to intracellular receptor.
My best attempt, hope its right.
Healthcare workers are exposed to many different types of patho genic and nonpathogenic micro organisms which body system works together to protect the body from pathogens
The body systems that work together to protect the body from pathogens are the immune system and circulatory system.
What are body systems?Body systems are groups of organs, tissues and cells that act to perform one or more specialized functions.
The immune system is an organ system that acts to protect the body against the entry of pathogenic organisms such as bacteria.
In conclusion, the body systems that work together to protect the body from pathogens are the immune system and circulatory system.
Learn more about the immune system here:
https://brainly.com/question/6612564
#SPJ1
Sometimes, due to inherited disorders, nerve cells in the muscular system do not function properly. What problems might a person have if he or she had one of these disorders?
Answer: common inhereted disorders are: bad eye sight, bad hearing, and autisim and other nurogical disorders!
Explanation:
What is known about colony
collapse disorder?
O A. Mites are the sole cause of colony collapse disorder.
O B. Invasive species are implicated in colony collapse disorder.
O C. The factors responsible for colony collapse disorder are well known.
O D. Several factors are likely
contributing to colony collapse
disorder.
Answer:
O A. Mites are the sole cause of colony collapse disorder.
Anybody ask questions
[tex]\huge{\color{pink}{\fbox{\color{pink}{\color{pink}{\color{Red}{Question}}}}}}[/tex]
(i) What is fertilisation? Distinguish between external fertilisation and internal fertilisation. (ii) What is the site of fertilisation in human beings?
What Is Internal Fertilization? Syngamy of gametes occurs inside the female body after insemination through copulationObserved in birds, mammals, birds occurring in terrestrial plants and animals, also in some of the aquatic entities. This is observed in three ways – ovoviviparity (eggs retained in the female body, hatched when fully developed, oviparity(egg-laying), viviparity(offsprings develop within the female body) Observes in plants such as bryophytes, pteridophytesWhat Is External Fertilization?Syngamy of gametes outside the female body/outer environment, notably in water bodiesObserved in few vertebrates, sea urchins, fish, aquatic invertebrates, almost all amphibiansDeposition of sperms and eggs by males and females in open surroundings is known as spawningBroadcast fertilization – used when sperms swim through the water uniting with eggs to fertilizeii) In humans, the process of fertilization takes place in the fallopian tube. During this process, semen comprising thousands of sperms are inseminated into the female vagina during coitus. The sperms move towards the uterus and reach the opening of the fallopian tube.✯ Hope this helps ✯
Explanation:
..♡ Innocent bachi ♡..Sorry if the answer is wrong !!
why do blue whales explode when they die
Answer:
Gas build up inside the body.
Explanation:
When a blue whale dies, the body starts decomposing, and the gases cannot escape, resulting into the explosion.
Answer:
A decomposing whale carcass generates gases which build up inside their stomach and large internal organs. This then causes them to expand, but whale skin and blubber are tough so the gases become trapped inside. Whales can apparently hold in gasses, or the “death burp,” for long periods after they die, sometimes resulting in massive and extremely messy explosions.
Explanation:
what is a factor that affects soil development.
a. Time
b. Slope
c. Type of rock
d. all of the above
Please select the best answer from the choices provided
Answer:
D) All of The Above
Explanation:
depending on what type of soil, it could take longer or shorter for it to develop properly. The slope can cause certain parts to develop better than. others as well.
hope that helps
ANSWER QUICK
How could a doctor test someone for hyperglycemia?
a) Do a cardiac stress test.
b) Check the urine for glucose.
c) Check the blood for sodium.
d) Check the platelet count with a blood draw.
Answer:
the answer is b check the urine for glucose
Hyperglycemia, otherwise known as high blood sugar, can be diagnosed with a blood test such as a fasting plasma glucose (FPG) test, an A1C test, or a fructosamine test. Additionally, hyperglycemia can be identified using a glucose monitor or by drinking a beverage and monitoring the body's glucose response—a test referred to as an oral glucose tolerance test (OGTT).
So, out of the options you provided, checking the urine for glucose (option b) would be one way to test for hyperglycemia. However, there are other tests that can be done as well.
Sorry if I took too long to answer.
name the level of organisations
Answer:
organelle, cells, tissues, organs, organ systems, organisms, populations, communities, ecosystem, and biosphere.
Explanation:
