Answer:
Scientific laws are similar to mathematical postulates. They don't really need any complex external proofs; they are accepted at face value based upon the fact that they have always been observed to be true. Specifically, scientific laws must be simple, true, universal, and absolute.
Explanation:
Which of the following shows the correct genotypes of purebred individuals?
BB, bb, Bb
TT, Tt, Tt
Ss, Ss, ss
bb, BB, bb
What groups of organisms are most in danger of extinction?
A. Those with small population
B. Those that migrate or need special habitats
C. Those with large populations that breed quickly
D. Both a and b
Explanation:
D.Both a and B
As organisms with small population and those who migrate and need special habitat are most in danger of extinction.
The group of organisms that are in danger of extinction is those that have small populations and those that migrate or need special habits. So the correct option is D.
What is the extinction of species?
In biology, extinction refers to the extinction or death of a species. Extinction happens when a species' numbers are reduced due to evolutionary changes in its members, such as genetic inbreeding, poor reproduction, and population decline, or due to environmental factors like habitat fragmentation, climate change, natural disasters, and overexploitation of the species for human use.
The majority of species that have ever existed on Earth have gone extinct, but the fossil record indicates five very significant extinctions, known as mass extinction events, each of which resulted in the extinction of enormous numbers of species. The bulk of extinctions, which happen continuously and are described as background extinctions, are separated from these glaring decreases in the variety by the term "mass extinction."
Therefore, the correct option is D.
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Which sentence correctly explains the process and conditions needed for sleet to form? (15 pointsss :)
Group of answer choices:
A. During thunderstorms and extremely cold temperatures, water droplets freeze in layers and form balls or chunks of ice.
B. Both the temperature of the cloud and the temperature of the air must be below freezing in order for the flakes to fall from the sky.
C. A liquid form of precipitation that is formed in above freezing temperatures becomes heavier as it falls the ground in the form of raindrops.
D. Ice crystals melt as they fall through a warm layer of air and then refreeze into small ice pellets as they pass through a colder layer of air.
green was not the impostor
Explanation:
u are all idiots
Answer:
gerijddhbdykbzdkvci
What is the monomer of DNA and RNA? Which part is variable (can change)?
nucleotide, base
Onucleotide, phosphate
amino acid, R group
monosaccharide, sugar
Answer:
nucleotide, phosphate
Explanation:
HEP PLEASE btw the answer is not D I am not sure what’s the answe
Answer:
I believe the answer is A
Explanation:
Some plants produce a _________________________ between the plasma membrane and the primary cell wall.
Answer: some plants produce a secondary cell wall between the plasma membrane and the cell wall
= secondary cell wall
Explanation:
Relationship between Photosynthesis and Cellular Respiration Video and
POSSIBLE POINTS: 20
What is the relationship between photosynthesis and cellular respiration?
O
The reactants of cellular respiration are the products of photosynthesis and the reactants of photosynthesis are the products of cellular
respiration
The reactants of cellular respiration and photosynthesis are the same but their products are different
O Cellular respiration is one of the steps in the process of photosynthesis
ο ο
O Photosynthesis is one of the steps in the process of cellular respiration.
1 2 3 4 5
Rev
You are a scientist and would like to know if a new fertilizer will help plants grow faster. What would the experimental group be?
The plants that only get soil
The plants that only get water
The plants that get different amounts of the new fertilizer
Answer:
The plants that get different amounts of fertilizer.
In your letter, you need to explain how the theory of evolution is supported by evidence. Be sure to include the 4 pieces of evidence for evolution as well as an example of each.
The evidence of evolution was posited by Charles Darwin. The theory of evolution states that all species are related and that they change over time
The different postulates of Drawin support the natural selection phenomenon. Darwin stated that the organisms that are fit and are able to change according to evolution are able to survive. This was known as the survival of the fittest.
The evidence of the evolution can be studied by fossil record , comparative embryology , molecular biology , and comparative anatomy.
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Stage 1 of Photosynthesis. Fill in the blank. ____________ in plant cells captures energy from _________.
Answer:
1st blank- chlorphyll
2nd blank: sun
Answer:
blank one the light dependent reaction blak two chlorophyll
Explanation: hope this the right answer if it is not i'm sorry
1. What does aerobic refer to?
A. How your body uses oxygen
B. Limit the uses of oxygen
C. The absence of oxygen
D. With little available oxygen
Answer:
A. How your body uses oxygen
Explanation:
Aerobic literally means "with oxygen", and refers to the use of oxygen in muscles' energy-generating process. Aerobic exercise includes any type of exercise, typically those performed at moderate levels of intensity for extended periods of time, that maintains an increased heart rate.
The correct answer to your question "What does aerobic refer to?" is: A. How your body uses oxygen.
Aerobic reaction can be defined as a biological and chemical reaction that occurs in the presence of oxygen.
On the other hand, an anaerobic reaction refers to a biological and chemical reaction that doesn't require oxygen such as glycolysis.
Some examples of an aerobic reaction include the following:
Krebs cycle.Electron transport chain.In conclusion, aerobic refer to how the human body uses oxygen such as during physical exercises e.g running, walking, jogging, etc.
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Aspirin makes the blood thinner and prevents blood clotting which causes heart attack. i) What type of rupture did Suman suffer from? ii) What did the doctor advise her to do? Why do you think so? iii) What is the cause of Amit's heart attack? iv) Why do doctors give Aspirin to the heart patient?
Answer:
Aspirin is administered in patients who produce blood hypercoagulation, that is why it is prescribed in order to antiaggregate platelets or platelet thrombi, this is how the platelets do not add or encompass each other and do not generate obstructions in the blood vessels to trigger an AMI (acute myocardial infarction) or CVA (cerebrovascular accident.)
Explanation:
Aspirin is an anticoagulant that is made up of N acetylsalicylic acid, that is, by an acid that inhibits the union of platelets with each other, that is why these in systemic situations where there is a tendency to hypercoagulation of the blood is a benefit for the patient .
Amit's infarction is caused by a platelet thrombus that obstructs the arterioles that supply the cardiac muscle tissue, that is, the coronary arteries. When these arteries are blocked by a platelet engulfment, the irrigation does not oxygenate the tissue and it suffers a transient hypoxia or anoxia that leads to partial necrosis and even in some cases of more serious situation it could be total where the person loses his life.
Some bacteria cells divide at a rate of
Answer:
Each daughter cell is a clone of the parent cell. When conditions are favorable such as the right temperature and nutrients are available, some bacteria like Escherichia coli can divide every 20 minutes. This means that in just seven hours one bacterium can generate 2,097,152 bacteria.
PLS help me for my assignment, here's a lot of points :D
What are examples of social, ethical, economical and legal issues of embryonic screening?
Answer:
Privacy and Confidentiality. Privacy has many dimensions. ...
Socially Vulnerable Populations. ...
Health Insurance Discrimination. ...
Employment Discrimination. ...
Individual Responsibility. ...
Race and Ethnicity. ...
Implementation Issues.
A food chain in an ecosystem flows from green algae, to freshwater snails, to small fish, and finally to large fish.
The primary consumer would is freshwater snails.
Explanation:
Producers are organisms that produce their own food and not depends on any other organism by the process of photosynthesis such as algae. Primary organisms on the other hand directly depend on the producers for their food and often get killed by secondary consumers.
Freshwater snails are the perfect example of the primary consumer as they get their food and energy from algae and are the primary source of food and energy for small fishes.
The ADP-ATP cycle is critical to producing cell energy. What do you know about this cycle? (More than one answer)
1. On average, 34-36 molecules of ATP are gained through the process of aerobic cellular respiration from
one glucose molecule.
2. When phosphate is added to ADP, free energy from food sources is stored in the phosphate bond,
producing ATP.
3. The hydrolysis of ATP to ADP is reversible.
4. When a phosphate group is removed from ATP by hydrolysis, ADP is produced and energy is stored for
cellular processes.
5. Only aerobic cellular respiration is used to break down glucose into ATP that is usable by the cell.
6. Glycolysis is the first step in both aerobic and anaerobic cellular respiration.
The ADP-ATP cycle is critical to producing cell energy, it is known about this cycle -
1. On average, 34-36 molecules of ATP are gained through the process of aerobic cellular respiration from one glucose molecule.2. When phosphate is added to ADP, free energy from food sources is stored in the phosphate bond, producing ATP.3. The hydrolysis of ATP to ADP is reversible.6. Glycolysis is the first step in aerobic and anaerobic cellular respiration.Cellular respirationIt includes biochemical reactions in which different organic compounds are entirely degraded, through oxidation, and converted into inorganic substances that serve as a source of usable energy for the cell.
It is of two two one takes place in the presence of oxygen, aerobic, and the other in absence of oxygen, anaerobic cell respiration. However, both processes involve glycolysis as their first step.
The production of energy requires ATP hydrolysis to the ADP where is the production of ATP takes place phosphate is added to ADP, free energy from food sources is stored in the phosphate bond.
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11. What is one of the benefits of sexual reproduction? 1
Answer:
One benefit of sexual reproduction is that your (or whoever is mating) genes will be passed on to your (their) children. If you want a specific trait to show (for example, in horses), then the two horses (say, long legs) with long legs would be bred together to get a horse with longer legs.
A mother and daughter are both talented pianist. Give an inherited trait and learned trait would lead to this similarity
Answer:
long fingers or slim hands i think would make sense for inherited trait and learned trait would be the mother teaching the daughter how to play piano
countable and uncountable noun ten examples
Answer:
Countable: dogs, cats, sheep, trees, roads, signs, men, women, planets, universes
Uncountable: rain, water, dirt, flour, wine, wood, plastic, glass, dust, grass
Explanation:
an xkmKJGWIgdK>kCKbmanvK.UEFIU;lage;kfkahefkj
Which statement describes the electron sharing between two oxygen atoms?
Each oxygen shares one electron with the other.
Each oxygen shares two electrons with the other.
Each oxygen shares eight electrons with the other.
Each oxygen shares six electrons with the other.
When two oxygen atoms get close to each other, the attractions from the nucleus of both atoms attract the outer electrons.
What is Electrons?A negatively charged subatomic particle known as an electron can either be free or attached to an atom (not bound). The nucleus of an atom is made up of electrons, protons, and neutrons together.
The positive charge of a proton balances the negative charge of an electron. An atom is in a neutral condition when it has the same number of protons and electrons.
There are several ways in which electrons differ from the other particles. They are substantially less massive, exist outside of the nucleus, and show both wave- and particle-like properties.
Therefore, When two oxygen atoms get close to each other, the attractions from the nucleus of both atoms attract the outer electrons.
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A student observes that a mountain has a layer of coal at the top of it.
How did the coal come to be at the top of the mountain?*
Answer:
Explanation:
During meiosis, the chromatids of homologous chromosomes have just undergone crossing over. Which of the following phases will the cell enter next?
A: Metaphase I
B: Anaphase II
C: Prophase II
D: Telophase I
Answer:
Metaphase I
Explanation:
Got it right on the test nun to worry about.
PLLLLLLLLLLLLLLLLLLLLLLLLLLLLSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSS HELP!
DUE RIGHT NOW
You know we have a ‘leap year’ every 4 years in February right? Make a guess- do you think these dates are exactly the same every year? *Explain completely*
I need help againnnnnn.....
Answer:
Compound are substances which can be formed by chemically combining two or more elements. Mixtures are substances that are formed by physically mixing two or more substances.
Explanation: brainliest?
what characteristics below distinguishes viruses from other types of parasites?
a.they need the blood of the host to survive
b.they need to live inside of the host to survive
c.they are not considered to be alive
d.they need a host to complete feeding
Answer:
B
Explanation:
what does photosynthesis and cellular respiration have in common?
Plants may grow faster if they have more
carbon dioxide.
Clear plastic bag
Indigestion tablets dissolve in water to form a
solution.
This solution slowly gives off carbon dioxide.
A student set up an investigation to see what
concentration of carbon dioxide is best for
increasing the growth of geranium plants.
Dish containing water
and one tablet
The student:
put a geranium plant in a clear plastic bag
put a dish containing water and one tablet in the bag and sealed the top of the bag.
The student:
set up 5 more experiments each with water and a different number of tablet and left all
the plants in a well-lit place for four weeks.
The student used a clear plastic bag, not a black plastic bag.
Explain why.
Answer:
the clear plastic bag is used for the sunlight penetration to allow photosynthesis to take place (i guess this is the answer I'm not sure tho but think about it) Black plastic bag would prevent the light penetration
Motion can be described through a change in ____.
Answer:
distance, velocity, acceleration, speed, and time
Explanation:
True of false: The wings on an airplane are flat.
1. False
2. True
Answer:
False
Explanation:
An airplane wing is round on top.
help plzzzzzzzzz asap
Answer:
Vestigial structures: are various cells, tissues, and organs in a body which no longer serve a function. (Ex: human appendix, the pelvic bone of a snake, and the wings of flightless birds)
Homologous Structures: Homologous structures are organs or skeletal elements of animals and organisms that, by virtue of their similarity, suggest their connection to a common ancestor (Ex: humerus, radius, and ulna, just as the arms of the other animals included in the figure.
Embryological Similarities: The study of one type of evidence of evolution is called embryology, the study of embryos. (Ex: fish embryos and human embryos both have gill slits)
Fossil Record: history of life as documented by fossils, the remains or imprints of organisms from earlier geological periods preserved in sedimentary rock. (Ex: bones, shells, exoskeletons, stone imprints of animals or microbes, objects preserved in amber, hair, petrified wood, oil, coal, and DNA remnants)
Genetic (DNA) Similarities: a self-replicating material that is present in nearly all living organisms as the main constituent of chromosomes. It is the carrier of genetic information. (Ex: basic materials in the chromosomes of the human cell.)
Divergent Evolution: is the accumulation of differences between closely related populations within a species, leading to speciation. (Ex: Darwin's finches are a clear and famous)