Answer:
Theories are sometimes disproven because new discoveries show they are incorrect.
Explanation:
In science, theories constitute the explanations to natural phenomena, with an experimental base and whose variables are congruent, allowing to make inferences, explanations and to raise predictions of the reality to which this theory is applied.
All theories are susceptible to be refuted or substituted by a more solid approach. A theory is maintained and is valid only until new experiments or established theories detract from its validity or substitute it.
Other options are not correct because:
B. The scientific method does not experiment changes over time.
C. Updated mathematical formulas do not relate to the validity of a theory.
D. It is unlikely that theories from other eras are currently valid.
Answer:
D. Few theories from previous eras are actually valid.
Explanation:
2. Nitrogen, as it is found in the ATMOSPHERE, can be used by plants and
animals.
TRUE OR FALSE?
Answer:
false
Explanation:
Although the majority of the air we breathe is N2, most of the nitrogen in the atmosphere is unavailable for use by organisms. This is because the strong triple bond between the N atoms in N2 molecules makes it relatively unreactive. However organisms need reactive nitrogen to be able to incorporate it into cells.
7. Energy is released from food. *
Photosynthesis
Respiration
Both
Energy is released from Respiration.
Certain populations worldwide are much more lactose intolerant than others. Why might this be the case?
Answer:
Lactose persistence, and therefore lactose tolerance, is inherited as a dominant trait. Lactose intolerance is the result of having two identical alleles of a particular gene or genes. for the recessive lactase allele that is poorly expressed after early childhood.
You basically can get it from your parents.
what structures form when water molecules surround individual ions
what is polymer for carbohydrates?
Answer:
Disaccharides and Polysaccharides are polymers of Carbohydrates.
Explanation:
Which of the following pairs of chemicals are understood to be the chemical
reactants in photosynthesis and the products of cellular respiration?
A
Sugar and water
B
Carbon dioxide and oxygen
с
Sugar and oxygen
D
Carbon dioxide and water
The answer is D) Carbon dioxide and water.
Hope this helps! :)
The pairs of chemicals that are understood to be the chemical reactants in photosynthesis and the products of cellular respiration are Carbon dioxide and water. Thus, the correct option for this question is D.
What is Photosynthesis?Photosynthesis may be defined as a process through which green plants and some photosynthetic algae synthesize their food in the form of glucose with the help of carbon dioxide and water in the presence of sunlight.
The complete reaction of photosynthesis is as follows:
[tex]6CO_2+12H_2O[/tex] → [tex]C_6H_1_2O_6+6CO_2+6H_2O[/tex].With the help of this reaction, it is understood that the reactants of photosynthesis are carbon dioxide and water. While these compounds are the product of cellular respiration along with the derivation of energy in the form of ATP.
Therefore, carbon dioxide and water are the pair of chemicals that are understood to be the chemical reactants in photosynthesis and the products of cellular respiration.
To learn more about Cellular respiration and photosynthesis, refer to the link:
https://brainly.com/question/19255074
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Where does sugar enter the blood? B. How can you tell where sugar enters the blood? C. Where is sugar removed from the blood? D. How can you tell?
Answer:
Well,
Explanation:
For your first question, the intestines.
B.When the stomach digests food, the carbohydrate (sugars and starches) in the food breaks down into another type of sugar, called glucose. The stomach and small intestines absorb the glucose and then release it into the bloodstream.
C. The capillaries.
D. Glycogen is mainly stored in the liver (where it makes up as much as 10% of liver weight and can be released back into the blood stream) and muscle (where it can be converted back to glucose but only used by the muscle). Therefore, excess glucose is removed from the blood stream and stored. In short terms, when it has the lowest content.
Blood sugar or glucose is the major source of energy found in the body. It is derived from the food and nutrient an organism consumes.
A. The blood sugar enters the intestine, where it gets digested. This absorbed sugar then gets discharged in your blood from where it diffuses in the body as a source of energy.
B. The food in the stomach gets divided into smaller, simple compounds as the carbohydrates split into sugar and starch.
It further gets divided into glucose which is the simplest sugar. The glucose then gets absorbed by the stomach and intestine which later discharges into the blood.
C. The excess glucose gets expelled from the blood capillaries and gets stored in the form of glycogen.
D. The excess glucose in the form of glycogen gets collected in the liver cells and muscles, where they can be transformed back into glucose through the process of glycogenolysis.
To learn more about blood glucose follow the link:
https://brainly.com/question/8394646
Mrs. Lewis set up a lab for her biology students using a culture of the small crustacean Daphnia, obtained from a pond that was 20°C. The students are to investigate the effect temperature has on Daphnia. The students will observe the crustacean’s heartbeat under the microscope, at different temperatures, and count the number of heartbeats per sec. What is the independent variable in this experiment?
5 points
Answer:
Hiii, the answer is b, hope this helped! :)
Explanation:
Answer:
mr lewis planted 121x13 then esmiate the answer in 2 diff ways
Explanation:
4. Stratus Clouds are made of ice crystals.
Question 4
options:
True
False
I think it is false tell me
Answer:
Stratus clouds look like featureless gray to white sheets of cloud. They can be composed of water droplets, supercooled water droplets, or ice crystals depending upon the ambient temperature.
BUUUT, cirrus clouds are delicate, feathery clouds that are made mostly of ice crystals, so no. It is false, because sure, stratus clouds can be made of ice crystals, but cirrus clouds are, 100%.
WHY NO ONE IS ANSWERING, WILL MARK AS BRAINLIEST
1. Clownfish make their homes among the stinging tentacles of sea anemones. The clownfish gain protection from predators while attracting prey for the anemones to eat. Why is this an example of a mutualistic relationship? *
• The clownfish benefit but the anemones are not affected
• The clownfish and anemones both benefit
• The anemones benefit but the clownfish is not affected
• The anemones are harmed by clownfish
2. Which of the following is a biotic factor within the ecosystem *
• The climate in the area
• The herbivore that feed on producers
• Amount of oxygen
• Amount of sunlight
3. Which of the following contains only biotic factors? *
• Temperature, pH and rainfall
• Algae, shrimp and humidity
• Frog, climate and insect
• Ant, grass and snail
4 . In all symbiotic relationships, at least one organism benefits *
• True or False?
5 . Lions kill and eat animals such as zebras and wildebeasts. Jackals then scavenge on the leftover remains. The jackals benefit from the lions without harming or benefiting them in return. What type of relationship is this? *
• Mutualistic
• Parasitic
• Commensal
• Competitive
Answer:
1. The clownfish and anemones both benefit
2. The herbivore that feed on producers
3. Ant, grass and snail
4. True
5. Commensal
Explanation:
1. The clownfish and anemones both benefit - the clownfish benefit by gaining protection from predators, the anemones benefit from the prey being attracted
2. The herbivore that feed on producers - biotic factors are living factors. Oxygen, sunlight, and climate are all abiotic (non-living)
3. Ant, grass and snail - biotic factors are living factors. Temperature, pH, and rainfall and humidity are all abiotic (non-living)
4. True - At least one organism benefits. The other organism might also benefit (mutualism), be unaffected (commensalism), or be harmed (parasitism)
5. Commensal - commensalism is when one organism benefits and one organism is not harmed or benefited by the interaction
please help meeee asap
Answer:
A, I think
Explanation:
HELP JELP HELP PLZZ ITS TIMED
Answer:
Uhm..
Explanation:
Food safety questions
Answer:
your question is clearly viewing in my mobile sorry
What is the relationship between ecosystem stability & biodiversity?
Answer:
Well, ecosystem stability is the ability of an environment to sustain a stable condition, even after the occurrence of stress or disturbance, while biodiversity is the diversity of life through all the various stages of biological organization on this planet.
Explanation:
○ HURRY I HAVE TO TURN THIS END ANSWER ALL THESE QUESTIONS 30 POINTS○
Answer:
there will be a net flow of water into the cells
There will be a net flow because the water from the fish tank will keep going into the fish. The water will make it's way into the cells, making a net flow of water go into the cells.
Hope this helps you!
In four oʼclock plants, R is the allele for red color and W is the allele for white color. Two pink flowered four oʼclock plants were crossed.
Show the possible outcome of the cross between two pink (RW) flowered four o’clock plant by using the Punnett square.
Answer:
Please find the punnet square attached.
Genotype of offsprings: RR(1), RW(2), WW(1)
Phenotype of offsprings: 1 Red: 2Pink: 1White
Explanation:
This question involves a single gene coding for flower color in four oʼclock plants. The alleles for red flower (R) and white flower (W) exhibit incomplete dominance, hence, results in a third phenotype that is pink (RW).
If two pink flowered four oʼclock plants were crossed i.e. RW × RW, the following gametes will be produced by each parent
RW - R and W
Using these gametes in a punnet square (see attached image), the following genotype and phenotype of offsprings will be produced.
Genotype of offsprings: RR(1), RW(2), WW(1)
Phenotype of offsprings: 1 Red: 2Pink: 1White
Can someone help me please
Answer:
Waiting for edit.
Explanation:
Lipids are hydrocarbons. What does that mean?
Answer:
a compound of hydrogen and carbon, such as any of those which are the chief components of petroleum and natural gas.
Explanation:
Answer:
Lipids include a diverse group of compounds that are largely nonpolar in nature. This is because they are hydrocarbons that include mostly nonpolar carbon–carbon or carbon–hydrogen bonds.
21. Kinetic energy is energy associated with
a. chemical reactions
b. motion
c. food
d. coal
e.light
Answer:
food and chemical reactions
Which refers to the highness or lowness of a sound? pitch amplitude frequency softness
Answer:
Pitch is relative highness or lowness of sound.
Explanation:
Answer:
It's pitch :D
True or False: enzyme inhibitors act as drugs, antibiotics, and pesticides.
Answer:
Since blocking an enzyme's activity can kill a pathogen or correct a metabolic imbalance, many drugs are enzyme inhibitors. They are also used in pesticides.
Explanation:
Answer:
True
Explanation:
Since blocking an enzyme's activity can kill a pathogen or correct a metabolic imbalance, many drugs are enzyme inhibitors. They are also used in pesticides. The binding of an inhibitor can stop a substrate from entering the enzyme's active site and/or hinder the enzyme from catalyzing its reaction.
When switching to the 100X lens, what should you use?
O 100X should be used with a few drops of immersion oil to enhance the image
O The 100x lens should only be used with low light intensity
O The 100x lens should be used in conjunction with a 15X eyepiece only
What is a characteristic of matter that describes its ability to change into a different substance?
Answer:
PHYSICAL PROPERTY: A characteristic of a pure substance that can be observed without changing it into another substance.
CHEMICAL PROPERTY: A characteristic of a substance that describes its ability to change into a different substance.
Explanation:
hope this helps
1
If we compare photosynthesis and cellular respiration
in terms of energy
conversions involved, we observe that in-
A
photosynthesis, carbon dioxide is used to produce energy.
B
photosynthesis, energy is used to produce oxygen.
с
cellular respiration, carbon dioxide is used to produce energy.
D
cellular respiration, energy is used to produce oxygen.
A
Explanation:
Photosynthesis uses carbon dioxide and water to produce energy.
Hope this helps! :)
i need help with this im stuck PLZZZZZ
Answer:
Cellular Respiration: Carbon dioxide is a product. Oxygen is reactant. Produces usable energy source. Carried out in animals.
Photosynthesis: Carbon dioxide is a reactant. Oxygen is a product.
Both: Carried out in plants, chemical reaction
A secondary consumer cannot survive, if there are no plants on the earth because
thats easy... like really easy.... like really really easy.
oh well, here it is ✍(◔◡◔)
if there was no plant, all the herbivores would die of hunger,
no herbivores, means no food for carnivores, (AKA) secondary consumers, which would eventually mean they would eat each other causing a mass extinction in almost all secondary consumers
which plant cells are involved in transporting water and minerals
which plant cells are involved in transporting glucose
Answer:
Xylem,phloem and tissues from vascular systems produce stem
Xylem + phloem+ tissues from vascular systems = stem ( transport systems)
What are the four phases of mitosis?
O anaphase, cytokinesis, metaphase, telophase
O anaphase, cytokinesis, metaphase, prophase
O anaphase, metaphase, prophase, telophase
O anaphase, cytokinesis, prophase, telophase
Please answer fast
I will mark brainliest and if right will Venmo u $5 thanks
which tissue makes the husk of coconut hard and stiff.
Answer:
Sclerenchymatous tissuePlants take in carbon dioxide through holes in their _____.
Answer:
Leaves
Explanation: It moves by diffusion through small holes on the underside of the leaf that's called the stomata.
Answer:
stomata
Explanation:
Hope this helped :)