evolution by natural selection is an example of a scientific

Answers

Answer 1

Answer:

Ideas aimed at explaining how organisms change, or evolve, over time date back to Anaximander of Miletus, a Greek philosopher who lived in the 500s B.C.E. Noting that human babies are born helpless, Anaximander speculated that humans must have descended from some other type of creature whose young could survive without any help. He concluded that those ancestors must be fish, since fish hatch from eggs and immediately begin living with no help from their parents. From this reasoning, he proposed that all life began in the sea.

Answer 2
Have no idea hopefully some1 can help you

Related Questions

I need help which one is it so I can pass summer school

Answers

Answer:

the correct answer is will be option b

Explanation:

I hope this help you have a great day

xà phòng hóa hoàn toàn 66,6 gam hỗn hợp 2 este HCOOC2H5 và CH3COOCH3 bằng dung dịch NaOH thu được hỗn hợp X gồm 2 ancol. Đun nóng hỗn hợp X với H2SO4 đặc ở 140 độ C sau phản ứng xảy ra hoàn toàn thu được m gam nước. Giá trị của m

Answers

Answer:

IS THIS EVEN ENGLISH YES

Explanation:

Can someone please help me with this biology question?

Answers

i think it is a not sure though

Answer:

I think it's C. The female parent hemophiliac..eta

but I would wait for a second opinion

Is Brewer's yeast a type of bacteria

Answers

Explanation:

Brewer's yeast is an ingredient used in the production of beer and bread. It is made from Saccharomyces cerevisiae, a one-celled fungus. ... Brewer's yeast is considered a probiotic and is used to aid digestion.

Answer:

Well Brewers Yeast is actually a Probiotic, and well a bacteria as well,

but its a good bacteria.

Explanation:

In the plasma membrane, the phospholipid heads Group of answer choices are isotonic and do not respond to water. are hydrophobic and face inward, shielded from water. are hydrophilic and face inward, shielded from water. are hydrophilic and face outward toward the aqueous solution on both sides of the membrane. are hydrophobic and face outward toward the aqueous solution on both sides of the membrane.

Answers

Answer:

hydrophilic and face outward toward the aqueous solution on both sides of the membrane

Explanation:

The cell membrane is mainly composed of phospholipids, which are arranged in a lipid bilayer. In general, phospholipids consist of a glycerol unit, a phosphate group, and two fatty acids. In a lipid bilayer, hydrophilic (polar) phosphate heads are always oriented outwards and interact with surrounding water molecules; whereas hydrophobic fatty acid tails are oriented towards the center of the lipid bilayer away from water. It is for that reason that phospholipids are considered to be amphipathic molecules, where fatty acids confer hydrophobic properties and polar phosphate groups confer hydrophilic properties.

Signal transduction pathways that include a phosphorylation cascade

are generally initiated by a phosphorylase enzyme and limited to one step
are generally inactivated by a kinase enzyme and decrease signal transduction efficiency
are propagated by steroid hormone receptors to reach the final cellular response in one step
cause a structural change in each phosphorylated protein, with the addition of a phosphate group to activate the protein

Answers

Answer:

Signal transmission paths Learn how signals are transmitted within a cell from the cell membrane receptor. The chains of molecules that pass intracellular signals are known as intracellular signal transduction pathways.

Signal transduction pathways that include a phosphorylation cascade cause a structural change in each phosphorylated protein, with the addition of a phosphate group to activate the protein. Thus, the correct option for this question is D.

What is the Phosphorylation cascade?

The Phosphorylation cascade may be characterized as a series of signaling pathways that significantly involve the activation of one enzyme through the effect of other in order to accomplish the downstream signaling pathway.

According to the context of this question, the process of phosphorylation involves the addition of a phosphate group over the compound in order to stimulate its activity. This is accomplished by the structural change in each phosphorylated protein, with the addition of a phosphate group to activate the protein.

Therefore, the correct option for this question is D.

To learn more about the Signal transduction pathway, refer to the link:

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why heart is vrey important.

Answers

Answer:

It is important because if our heart isn't there we people can't survive if for a second to our heart doesn't beats then we won't survive it's really important

The heart is important because it pumps blood around your body, delivering oxygen and nutrients to your cells and removing waste products. 

different seeds need different cultivation. justify in 200 words.

for 18 points​

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Answer:

Cultivation is the process of growing crops. we need different seeds to cultivate different types of food. Similarly, different seeds need different cultivation. For eg: we grow potatoes in well-drained loam soil. But we grow rice in muddy soil. Every seed has a different way to produce food. They need different temperate or climates, different types of soil, to grow them. They have their own time or season to grow and produce food. If we try to grow plants or vegetables in the wrong season or the wrong process, then we can't get a good result. For eg: If we try to grow rice in drained soil then it will not give us a good result or if we try to grow potatoes in muddy soil we cant get our good result.

So, we can say that different seeds need different cultivation.

hope this helps. please mark me as brainlist

fundamental molecules produced in photosynthesis is

(a) glucose (b) amino acids (c) fatty acids (d) nucleotide​

Answers

glucose is the fundamental molecules produced in photosynthesis

plz mark me as brilliant answer

Determine if the statement is true or false, and why. “Most features are caused by a mixture of inheritance and environmental factors.”
A. False, it should read “Most features are caused by inheritance.”
B. True
C. False, it should read “Most features are caused by environmental factors.”
D. False, it should read “All features are caused by a mixture of inheritance and environmental factors.”

Answers

The statement is False, it should read, Most features are caused by inheritance of a character. Thus option A is correct.

What is inherited trait ?

Inheritance is defined as the transfer of genetic information from parents to their offspring.

The transferred characters or traits include eye color, hair color, and blood type.

Trait can be defined as the genetic character which can be transmitted by the parent to its offspring during fertilization.

The trait which is expressed phenotypically is called as dominant trait while the other trait which is not expressed called as recessive trait.

These variations are observed in the species due to survival benefits or genetic drift.

Acquired traits are acquired by an individual in his lifetime which is due to their own activities or external influence.

Like inherited traits, acquired traits are unable tp pass to the next generation like ability to dance, cook.

Thus option A is correct.

Learn more about inheritance of character, here:

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plzzzzzz hellppppp......​

Answers

The answers for 1 are…..
a) The process is called glucose homeostasis.
b) i) The hormone is Glucagon.
ii) The organ is the pancreases.
iii) The compound is is pyruvate?
Hope this helps, please give me brainliest:))

Xerophytic plants have thick stem why.​

Answers

Answer:

to store large masses of water for survival since they live in areas of little water.

Due RN pls help!!!


Summarize the nervous system’s influence on the respiratory system.


a. It stimulates pathogen response.



b. It regulates breathing rate.



c. It controls muscle contraction.



d. It regulates heart rate.

Answers

Answer:

C

Explanation:

It controls muscle contraction

Answer:

C

Explanation:

Breathing pretty much requires complex interactions of central nervous system with the respiratory system. Therefore as you breathe muscle contraction occurs making the nervous system and respiratory system work hand in hand.

hope this makes sense.

:)

Give a positive and a negative impact of an environmental law or regulation.

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Answer:

negative impact

Humans impact the physical environment in many ways: overpopulation, pollution, burning fossil fuels, and deforestation. Changes like these have triggered climate change, soil erosion, poor air quality, and undrinkable water. These negative impacts can affect human behavior and can prompt mass migrations or battles over clean water.

positive impact  

Environmental regulations have greatly improved air and water quality, especially in areas that were dirtiest before regulation. Reducing airborne particulates is especially beneficial, saving thousands of lives and preventing millions of illnesses each year.

ways in which soil organisms such as earth worms improve soil fertility

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Answer:

by eating organic matter in the soil and excreting castings that are rich in nitrogen, phosphorus, and potassium which make the soil nourishing.

Which phrase describes a feature of groundwater?

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Answer:

feeds rivers

Explanation:

Answer:

A

Explanation:

Im confused can someone assist me ?

Answers

Answer:

recessive trait ,I think it

Give a reason why lack of roughage in diet often lead to constipation?​

Answers

Answer:

Roughages increase fecal volume and promote peristalsis

Explanation:

Constipation refers to the condition in which bowel evacuations occur infrequently, leading to health problems. Some of the most common causes of constipation include 1-insufficient intake of dietary fibers or roughages, 2-poor hydration, 3-lack of physical exercise, 4-abuse of laxatives, etc. Dietary fibers are divided into two classes based on their water solubility: soluble and insoluble. These fibers represent the part of plant foods that the body can't digest, which absorbs and retains water (soluble fibers) as foods pass through the bowel and create bulk (insoluble fibers), thereby leading to regular bowel habits.

What maintains the concentration gradient across
respiration membranes?
A. Ventilation
B. Cartilage
C. Spiracles
D. Cohesion

Answers

spiracles which is c

help is needed please!!

Answers

Answer:

That would be the 3rd option.

Explanation:

Plants rely on nitrogen fixation to fix atmospheric nitrogen into nitrogen that they can use to perform photosynthesis. By removing that step, there would be significantly less reliance on nitrogen fixation as plants can do the work.

A small size is advantageous for marine organisms because it ________. increases the surface area to volume ratio that in turn reduces frictional resistance to sinking increases the ability to absorb nutrients increases the ability of wastes to diffuse out of the organism All of the above

Answers

Answer:

increases the ability of wastes to diffuse out of the organism

Explanation:

A small size of an organism is advantageous for marine organisms because it increases the ability of wastes to diffuse out of the body of organism. Small size of an organism produces less amount of waste material and these organism does not need a very special and complex excretory system so simple diffusion of waste material occurs from the body in order to clean the body.

What is science DO NOT COPY AND PASTE!!!

Answers

Accorfing to me science is all about logic and imagination.First, imaginating and putting own views then finding reasons behind it and proving.........

Answer:

Science is the study of both living and non-living things that are present in the huge diversity in this mysterious yet unique world.

What is the purpose of a Punnett square?

Answers

Answer:

Punnett square is a chart that allows you to determine the expected percentages of different genotypes in the offspring of two parents

A Punnett square is a chart that allows you to determine the expected percentages of different genotypes in the offspring of two parents. A Punnett square allows the prediction of the percentages of phenotypes in the offspring of a cross from known genotypes.

Gangguan pada sistem pencernaan sering kali terjadi karena kebiasaan buruk, seperti pola makan yang tidak teratur dan sembarangan. Salah satu dampak dari kebiasaan buruk yaitu penyakit maag atau gastritis. Coba jelaskan oleh Anda mengapa dapat terjadi?​

Answers

Answer:

i don't know answer of this question

Answer:

Periode yang lama tanpa makanan cenderung menyebabkan refluks asam, gastritis, dan asam lambung. Jumlah cairan pencernaan yang berlebihan dapat mengikis lapisan usus Anda dan menyebabkan bisul

*EARTH SCIENCE CLASS*

1. Scales are used to figure out the ratio of the distance in the map to the actual distance between locations.

A. what is the name of two different types of scales found on maps?

B. how does each scale work?

Answers

Answer:

Bar and lexical.

Explanation:

Bar and lexical are the name of two different types of scales that are found on maps. Bar scales are used more frequently in the maps because they represent or show the distance ratio visually instead of in words, while on the other hand, lexical scales may be expressed in words, as a ratio, or as a fraction. Examples are 1:10,000 or 1/10,000. Using map scales is very important in the real world if you want to find out the distance you are traveling.

what is photosynthesis?


........​

Answers

Answer:

Photosynthesis is the process by which green plants and some other organisms use sunlight to synthesize nutrients from carbon dioxide and water.

Explanation:

Photosynthesis in plants generally involves the green pigment chlorophyll and generates oxygen as a by-product.

Explanation:

photosynthesis, the process by which green plants and certain other organisms transform light energy into chemical energy. During photosynthesis in green plants, light energy is captured and used to convert water, carbon dioxide, and minerals into oxygen and energy-rich organic compounds.[tex]\pmb{ }[/tex]

in guinea pigs long hair is dominant over short hair. describe the results of a cross between a long haired, heterozygous guinea pig with a short haired guinea pig

Answers

Answer:

50% chance of long hair heterozygous

50% chance of short hair

Explanation:

    L   l

l   Ll   ll

l   Ll   ll            <------ punnet square

L = dominant long hair

l = recessive short hair

50% chance of long hair heterozygous

50% chance of short hair

A technique that can be used to separate proteins based primarily on the presence of non-polar residues on their surface is called A) ion-exchange chromatography. B) gel filtration chromatography. C) affinity chromatography. D) gel electrophoresis. E) hydrophobic interaction chromatography.

Answers

Answer:

E) hydrophobic interaction chromatography.

Explanation:

Hydrophobic interaction chromatography (HIC) is a methodology used to separate protein molecules depending on their hydrophobicity. HIC enables the separation and purification of proteins by using a reversible interaction between the target protein and the hydrophobic ligand of a HIC resin such as, for example, methacrylate-based beads. This interaction is influenced by the running buffer (high salt concentrations favor hydrophobic interactions). HIC enables the separation of proteins under low denaturation conditions, thereby preserving their biological functions.

sustitución de una es estructura que el animal ha perdido​

Answers

Answer:

we'll need a translator to get what you expressing

Please help! Show work please!

Answers

Answer:

7. 18m = 1800 cm = 18×10² cm

8. 23 dm = 0.23 hm

9. 5 cm = 50 mm

10. 5.3 hL = 530000 mL

11. 167 mm = 0.167 m

12. 1.589 daL = 158.9 dL

13. 35.45 mg = 0.0003545 hg

14. 43 dam = 4300 dm

15. 500 kg = 500000 g

16. 700mL = 0.0007 KL

17. 130 dag = 1.3 kg

18. 59.932 mm = 59.932 × 10 –⁵ km = 59.932 × 10^–5 km

* Note; 1 m —> 100 cm1 dm —> 0.001 hm1 cm —> 10 mm1 hL —> 100000 mL = 10⁵ mL1mm —> 0.001 m1 dal —> 100 dL1 mg —> 0.00001 hg = 10^–5 hg1 dam—> 100 dm1 kg —> 1000 g1 mL —> 0.000001 kL = 10^–61 dag —> 0.01 kg1 mm —> 0.00001 km = 10^–5 km

I hope I helped you^_^

Other Questions
Write 1 paragraph (at least 150 words) answering the following question:Do you think the eye for an eye justice found in Hammurabi's code is fair? Use at least two of the examples provided from Hammurabi's Code to justify your response.If any one finds runaway male or female slaves in the open country and bring them to their masters, the master of the slaves shall pay him two shekels of silver.If anyone is committing a robbery and is caught, then he shall be put to death.If a son of a paramour or a prostitute say to his adoptive father or mother: You are not my father, or my mother, his tongue shall be cut off.If a son strike his father, his hands shall be hewn off.If any one "point the finger" (slander) at a sister of a god or the wife of any one, and can not prove it, this man shall be taken before the judges and his brow shall be marked. 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