Answer:8
Explanation:Octet rule: A rule stating that atoms lose, gain, or share electrons in order to have a full valence shell of 8 electrons. (Hydrogen is excluded because it can hold a maximum of 2 electrons in its valence shell
Answer:
8
Explanation:
cause the first shell can hold up to 2 electrons the second shell holds upto 8 electrons
A group of environmentalists was discussing the benefits and drawbacks associated with using fossil fuels. Which argument best fits the conversation?
Answer:
Fossil fuels are cheaper then alternative forms of energy
Explanation:
took the test
Do you think SSP is an organization that can be trusted to write articles that are truthful?
Answer:
The Society for Science & the Public (SSP) is a non-profit organization that was established in 1921, a few years after the first world war. The journalist and scientist who founded it aimed to promote science in the general masses. They have dedicated their time and resources into conducting research that could benefit the people as large and hence, can be seen as a credible source of information and guidance.
Hope that answers the question, have a great day!
Answer:
guy above is correct
Explanation:
Your friend has a dog with fleas. She goes to the pet store and buys over-the-counter flea medicine. It does not work. So she goes to the veterinarian and explains that she just spent $80 on medicine that does not work. The vet casually says, “Oh yeah, that medicine does not work anymore.” Because you now understand natural selection, your friend asks you questions. Answer them with evidence.
- What do the resistant fleas do that the sensitive fleas do not?
Answer:
Explanation:
The dog has fleas, but the medicine to counter this does not work. This means that the fleas have built up a resistance against the drug to ensure continued survival and reproductive success of these organisms. These resistant fleas may have existed in population as the population is always large but in small amounts. Thus, treatment with the drug will lead to the dieing out of the sensitive fleas and then leaving the resistant fleas with the favourable alleles to be selected for.
These favourable traits that have evolved against the drugs are then selected for and the organisms reproduce giving rise to more fleas with these favourable characteristics (being resistant to the drugs) such that their continued survival and reproductive is ensured compared to the sensitive fleas that die out.
Question 3 of 10
What is a B cell?
the extra cell in your blood cells
if light is removed from this environment the fish will eventually die explain why
Identify characteristics of fungi
Answer:
Characteristics of Fungi. Following are the important characteristics of fungi: Fungi are eukaryotic, non-vascular, non-motile and heterotrophic organisms. They may be unicellular or filamentous. They reproduce by means of spores. Fungi exhibit the phenomenon of alternation of generation.
Meiosis produces four sex cells with half the number of chromosomes. True or False
Answer:
True
Explanation:
Meiosis is a type of cell division that results in four daughter cells each with half the number of chromosomes of the parent cell.
ANSWER ASAP FOR BRAINLIST!!
part 1: is this a plant cell or animal cell?
part 2: what organelles are showing?
• cell membrane
• cell wall
• chloroplast
•nucleus
•mitochondria
•vacuole
(you can pick all more than one)
Answer:
pt 1 animal
Exp
Read "Charting the Pathways of Evolution" and answer the questions that follow.Explain the main idea of the article in detail.
Answer:
Organisms’ characteristics can be used to determine the evolutionary relationships among them. The more closely related two organisms, the more characteristics they have in common. These shared characteristics, along with the fossil record, indicate that organisms have evolved over time from a common ancestor.
Explanation:
Sample Response
When living cells break down molecules of food, what happens to the energy
Answer:
release energy,form molecules of ATP
Explain how embryology can be used as evidence for evolution
Answer:
the study of the development of the anatomy of an organism to its adult form, provides evidence for evolution as embryo formation in widely-divergent groups of organisms tends to be conserved. ... Another form of evidence of evolution is the convergence of form in organisms that share similar environments.
HOPE IT HELPS : D
Explanation:
What are asexual spores
Answer:
Asexual spores comes with both the male and female reproductive parts, in which one part of the spore produces the sperm (male), which mates with the egg (female), which is produced in a different part of the spore. It is asexual, for the beast or plant only needs itself (not another of the same family) to reproduce.
Which evidence best supports the theory that the
continents have moved over time?
Answer:
Explanation:
-how continents match up when put together like a puzzle
-fossils of the same animals found in two different continents
What characteristic do insects, centipedes, and millipedes share? Check all that apply
three pairs of legs
one pair of wings
one pair of antennae
two body sections
Answer:
One pair of antennae
Explanation:
They have more than three pairs of legs, centipedes and millipedes do not have wings, and they have more than two body sections.
Answer:
C is correct
Explanation:
What Niche does rabbits occupy in its ecosystem
Lots Of points 30!!!!!!!!!!!
Answer: i feel it should be c
Explanation:
Answer: i think its c or d
In a desert ecosystem, coyotes and rattlesnakes both eat the same type of mouse as a primary part of their diets. Recently, coyotes have been hunted and killed by people, decreasing the overall coyote population. How will this most likely affect the rattlesnake population over time?
Answer:
Answer: It will increase because coyotes are the competition.
Explanation:
An ecological niche can be defined as the functional role which an organism performs in the ecosystem in order to sustain it's life. The functional roles include how an organism obtains it's food, type of food eaten by the organism, type of habitat chosen by the organism and type of breeding season used by the organism.
In the given situation, both coyotes and rattlesnakes are dependent upon the same ecological niche that is they are dependent upon mouse as a primary part of their diets. As, both coyotes and rattlesnakes are dependent upon the same diet there may exist the competition between the two species. But it is mentioned that the coyote population is decreasing therefore the population of rattlesnake will most likely increase as the competition for the same diet decreased.
Answer:
D
Explanation:
what are the features of common to all cell
Answer:
Nucleus
Explanation:
every cell has a nucleus kind of like a factory has a ceo, does this make sense to you?
List the 4 main components that make up the blood
Answer:
1. plasma
2 Red blood cells
3. White blood cells
4. Platelets
Answer:
Blood is a specialized body fluid. It has four main components: plasma, red blood cells, white blood cells, and platelets.
Explanation:
hope this helps! :)
Help please! I will give brainly! The prefix aqua- refers to ""water."" The verb culture means ""to foster the growth of living things."" Use this information to define aquaculture.
Answer: im not sure but i think it means to grow plant because it is talking the key words are to foster the growth of living things.
i hope it is right if not sorry!!!!!!!!!!!!!!!!!!!!!
Answer:
Aquaculture means to foster organisms (for the most part fish) that live in water.
Explanation:
After reading Holt Enviromental Science's Food and Agricultural Section: Animals and Agriculture passage, you can define aquaculture. In the passage it reads "fish farms generally consist of many individual ponds that each contain fish at a specific stage of development." The fish grow until they are matured and then "they are harvested."
Which organelle supplies the cell with energy?
Describe the sequence of events during a blood clot.
Answer: Hemostasis includes three steps that occur in a rapid sequence:
Explanation: 1) vascular spasm, or vasoconstriction, a brief and intense contraction of blood vessels; (2) formation of a platelet plug; and (3) blood clotting or coagulation, which reinforces the platelet plug with fibrin mesh that acts as a glue to hold the clot.
or:
The Blood Clotting Process
Injury. A small tear in a blood vessel wall (for example, from a cut on the skin or an internal injury) causes bleeding.
Vessel constriction. To control blood loss the blood vessel narrows (called constriction), thus limiting blood flow through the vessel.
Platelet plug. ...
Fibrin clot.
What type of mutation has occurred?
Below are two sequences of a segment of DNA.
Normal sequence CAT TAC ACC
Mutated sequence CTT TAC ACC
Deletion mutation
Nonsense mutation
Insertion mutation
Substitution mutation
How is the virus reproduced during the lysogenic cycle?
A. through reproduction of the host cell
B. by using viral enzymes to reproduce viral DNA
C. by using the cell's enzymes to reproduce viral DNA
D. by breaking the cell open and releasing new viruses
Answer:
a through reproduction of the host cell
Explanation:
Describe how the carbon cycle transfers matter between organisms and their environment. Include three examples. For each example identify which of Earth's spheres (hydrosphere, geosphere, atmosphere, and biosphere) are involved in the exchange of carbon.
Answer:
Crabon is consumed by plants to produce food and taken by other organism as food from plants. They release then CO2 either through respiration or when they die. During this entire chain, carbon moves through all the spheres of earth
Explanation:
Carbon constitutes the base of life on earth. Carbon and its compound regulate between the different spheres of earth to sustain the ecosystems and flow of nutrients and energy.
Carbon is exchanged between all the hemisphere i.e biosphere, geosphere, hydrosphere and atmosphere. For instance – The ocean consists of largest reserve of carbon on earth (part of hydrosphere), Terrestrial biosphere comprising of non-living organic materials and fresh water sources as sink of carbon in biosphere. The sediments and soils consists of carbon (geosphere) and atmosphere consists of a large amount of gaseous carbon dioxide.
Plants take in gaseous carbon dioxide and produces food that stores in it or is consumed by other living organisms. When these organic animals or plants die eventually, they release the solid carbon contained within them either in the geosphere, biosphere or hydrosphere.
Food molecules such as proteins cannot be absorbed unless they are digested.
Give one reason why.
Answer:
Your body can't absorb proteins in their natural state. Certain proteases in your stomach and pancreas break the bonds that hold the amino acids in protein together so your body can absorb the composite amino acids individually.
Food molecules cannot be absorbed unless digested because ; They are too big to pass through the plasma membrane, in their natural state.
The food molecules such as protein needs to be broken down into its composites amino acids for easy absorption. food molecules, cannot be absorbed in their natural state because they are too big to pass through the plasma membrane.
Protein is broken down ( digested ) by proteases and pancreas into composite amino acids that is absorbable into the human cells.
Hence we can conclude that protein cannot be absorbed unless digested because they are too big to pass through the plasma membrane, in their natural state.
Learn more : https://brainly.com/question/19596068
how many electrons are in an atom of zirconium?
Answer:
There are 40 electrons and protons and 50 neutrons
Explanation:
Drag each label to the correct location. Each label can be used more than once.
Identify the types of breezes and the areas of high and low pressure that cause them.
Answer:
There are 4 types of breezes: land breeze, sea breeze, mountain breeze and valley breeze.
The breeze will originate from an area of high pressure and travel towards/blow in the direction of the area at a lower pressure.
In each case, the name of the breeze indicates where the breeze is blowing from. For instance, the land breeze will blow from the land (at high pressure) to the sea (at lower pressure). A mountain breeze will blow from mountain (at high pressure) towards the valley (at low pressure).
Hope that answers the question, have a great day!
What energy does an apple have
Answer:
Chemical
Explanation:
An apple has energy stored within fructose and glucose inside of it, which is a form of chemical energy. A typical apple has about 90 kilo calories of energy inside of it, which is enough to raise the temperature of 90 liters of water by 1 degree Celsius. Hope this helps!
Use the drop-down menus to complete each statement.
The___controls land for oil and gas development.
The___ensures that federal wildlife laws are followed.
The___protects ecosystems and supervises public access to forests.
The___regulates land used for mining, grazing, recreation, and wilderness.
The___manages monuments, historic sites, seashores, and more.
Answer:
the answers are
1.bureau of Land management
2.Us Fish and wildlife Service
3.Us forest Service
bureau of Land management
5. National park service
