In science, theories____?

In Science, Theories____?

Answers

Answer 1

Answer:

have limited explanatory power


Related Questions

Complete the sentences by matching the names of trees to the appropriate blanks. To do this, drag the names on the left into the appropriate blanks in the sentences on the right. Terms may be used more than once.
a. cedar
b. mango
c. elm
d, maple
e. pine
Evergreens are plants that maintain their leaves in all seasons and include trees such as___, ____, and____.
2. Deciduous trees lose their leaves seasonally and include trees such as___and___.
3. Conifer leaves are generally thin and needle-like, while seeds are contained in cones. Conifers include___and___.
4. Hardwoods reproduce using flowers and have broad leaves; hardwoods include trees such as___, ___, and____.

Answers

Answer:

1. cedar, mango and pine

2. elm and maple

3. pine and cedar  

4. mango, elm and maple

Explanation:

Evergreen trees are plant tree species that remain green across seasons, even in cold/dry conditions, thereby contrasting with deciduous trees that lose their leaves in cold/dry conditions.  Conifers (Coniferophyta) are gymnosperm plants that produce seeds without fruit/flowers. Conifers are vascular land plants composed of one that one class named Pinopsida, which consists of perennial plants with secondary growth. Moreover, mango, elm, and maple are hardwood trees that have seeds within fruits (i.e., they are angiosperms), which lose their leaves seasonally (i.e.,  they are deciduous trees).

Which of these human behaviors has the least potential to harm the
environment?
A. Focus on harvesting of high-value resources
B. Unregulated rates of harvesting resources
C. Use of technology to speed harvesting of resources
D. Focus on steady harvesting of abundant resources
ID

Answers

Answer:

D. Focus on steady harvesting of abundant resources

I think it’s d. Because resources are very important in an environment

a. AATACGTCCAGATTTT
b. TTAACCGAGTTCAGA
c. CCCGCGGAATATACA
d. AGGGCTACTTCAGAC







Answers

Answer:

what is the question??? I can't understand it sorry

I would say the answer is a

according to newtons 2nd law of motion if the force acting on the object stays the same but the mass increases what is most likely to happen to the acceleration of the object?


A. aceleration will decrease

b. acceleration with increase

c. acceleratin will change but the speed and direction will remain constant,

d. acceleration will remain the same.​

Answers

Answer:

D

Explanation:

I had this question before and this is the guaranteed answer

When human undergo anaerobic respiration , they

Answers

When humans and other animals lack sufficient oxygen, they'll create ATP through a form of anaerobic respiration that produces lactic acid as a byproduct. ... Yes 'Anaerobic' means 'without oxygen. Cells will produce ATP through lactic acid fermentation only under when they lack sufficient oxygen.

Answer:

They experience sore muscles

Explanation:

Have a nice day lol <3

What do we still need to know in order to determine why the two rock formations have such similar minerals?

Answers

Answer and Explanation:

Rock is defined as the collection of one or more minerals. Granite, sedimentary rock, igneous rock, metamorphic rock and limestone are the types of rock. Granite is the most common type of rock. Granite is made up of four minerals such as hornblende, feldspar, quartz and mica. Granite breaks down to form sedimentary rocks. Igneous rock begins as magma. The lava and magma harden to form igneous rock. Metamorphic rocks are made from pressure.  Rocks are made of one or more minerals, which are cooled and melted together, cemented together, or heated and squeezed together. The mineral occurs naturally and is made of crystals. The earth’s crust is made of rocks. Most rocks are covered by soil. Soil contains the small pieces of rocks.  The two rocks have similar composition but different texture. Rocks are formed in different ways. The rocks can be changed from one form to another.

Example on one of the 3 laws of motion

Answers

Answer:

Newton's First Law of Motion

Explanation:

A body at rest persists in its state of rest, and the body in motion remains in uniform motion along a straight line unless acted upon by a net external force.

Through which of the following processes are plant communities taking over the ecosystem

Answers

Answer:

Climate disturbance

Explanation:

unlike eukaryotes prokaryotes do not contain a system of internal membranes. Any organelles, proteins, and genetic material are free - floating within the cytosol. Select the description below that correctly identifies how protein synthesis differs in prokaryotic and eukaryotic cells as a result of eukaryotic compartmentalization.

A. RNA processing occurs outside of the nuclear membrane in prokaryotes and inside it in eukaryotes.

B. Translation can occur before transcription in a prokaryote but not in a eukaryote.

C. Transcription and translation can occur simultaneously in a prokaryote but not in a eukaryote.

D. Ribosomes are needed for translation of mRNA in eukaryotes, but they are not needed in prokaryotes.

Answers

Answer:

The difference in protein synthesis in prokaryotic and eukaryotic cells, due to the compartmentalization of the latter, is that transcription and translation can occur simultaneously in a prokaryote but not in a eukaryote (option C).

Explanation:

Eukaryotic cells are characterized by a true nucleus, surrounded by a nuclear membrane. Since transcription occurs in the nucleus and translation for protein synthesis occurs in the cytoplasm, the former process occurs before the latter.

In prokaryotic cells the absence of a nucleus and compartmentalization system makes it possible for transcription of DNA into RNA and translation to occur simultaneously.

The other options are not correct because:

    A. RNA processing, in both prokaryotes and eukaryotes, occurs in the cytoplasm.

    B. Transcription precedes translation in all organisms.

    D. Ribosomes are present and are necessary for protein synthesis in both prokaryotes and eukaryotes.

A Class-A 10 mL pipette is supposed to dispense 10.00 mL of water. A lab technician makes three measurements of the volume that the pipette actually dispenses, and obtains volumes of 9.70 mL, 9.69 mL, and 9.71 mL. The pipette is:__________
a) Accurate, but not precise
b) Precise, but not accurate
c) Accurate and precise
d) Neither accurate or precise

Answers

Answer:

d) Neither accurate or precise

Explanation:

Accuracy and precision are critical factors in the experimental procedure. Accuracy can be defined as the amount of uncertainty in the process of measurement in relation to the true value (in this case, 10 mL). On the other hand, precision is an independent feature of the accuracy which indicates the repeatability of the measurement process (in this case, three measures weren't repeated). Therefore, precision indicates the confidence of a particular measurement, while accuracy indicates how close is this value to the real value.

How are cellular respiration and photosynthesis mutually dependent

Answers

Answer:

Photosynthesis makes the glucose that is used in cellular respiration to make ATP. ... While photosynthesis requires carbon dioxide and releases oxygen, cellular respiration requires oxygen and releases carbon dioxide. It is the released oxygen that is used by us and most other organisms for cellular respiration.

Explanation:

Please read the following scenario to answer the following question. While working with cultured mouse cells, a researcher unknowingly treated the cells with a mutagen that causes the deletion or insertion of individual nucleotides in DNA. Subsequently, the researcher isolated and cultured a single cell from this group and noticed that the progeny of this cell were not producing a certain protein, and that this affected their survival. The mutation would be most harmful to the cells if it resulted in ________

Answers

Answer:

deletion or insertion of nucleotide from or in any coding sequence of the DNA

Explanation:

The mutation would be most harmful to the cells if it resulted in the deletion or insertion of nucleotide from or in any coding sequence of the DNA.

Deletion or insertion of a nucleotide from/into the coding sequence of DNA results in a frameshift mutation away from the original protein. Deletion/insertion of a nucleotide from/to the coding sequence of a DNA can cause a totally different protein to be synthesized from such DNA or, worse still, results in a nonfunctional protein. Both results could be grossly harmful to the cells.  

If it takes a frog 5 minutes to jump 3 blocks, how long will it take for him to jump 15 blocks?

Answers

25 minutes it will take the frog to jump over 15 blocks

Answer: It will take the frog 25 minutes.

Explanation:

Wolves that live in snowy climates often prey on rabbits. Some rabbits can move quickly across deep snow because they have large feet that don’t sink into the snow. Rabbits without this adaptation move more slowly across the snow. Which statement best justifies how the rabbit population changes over time?
A. Sea coral would make immediate adaptations through genetic mutations to adjust to the changes in the environment.

B. The ocean water would change its current so that the acidic water is relocated to another area and allow sea coral to survive.

C. The ocean water would change its composition to reduce the amount of carbon dioxide contained and allow sea coral to survive.

D. Sea coral would become extinct because of its inability to make adaptations fast enough to adjust to the changes in the environment

Answers

Answer:

It's A

Explanation:

Just like the corals have genetic mutations to adapt to their environment so do the rabbits change their genetic characteristics to make sure the species continue it's lineage by evolving and growing their feet so they can be faster and not sink in the snow, becoming harder preys to catch, otherwise, if their paws were smaller, they would be slower and, therefor, an easy catch for the wolves, probably becoming extinct after awhile.

The statement that justifies how the rabbit population changes over time is sea coral would make immediate adaptations through genetic mutations to adjust to the changes in the environment. So, the correct option is A.

What is Adaptation?

Adaptation is the process by which a species becomes fitted to its environment; it is the result of natural selection's acting upon heritable changes.

Rabbits have to change their genetic characteristics same as the coral have genetic mutations to adapt to their environment and to make sure the species continue its downstream by evolving and growing their feet, so they can run faster in the snow and successfully escape from predators. If rabbits are not evolved with an environment that does not favor them, they are surely eliminated from nature.

Therefore, the statement that justifies how the rabbit population changes over time are sea coral would make immediate adaptations through genetic mutations to adjust to the changes in the environment.

To learn more about Evolution, refer to the link:

https://brainly.com/question/1144962

What gametes are produced by the following organisms:_______.
a. Genotype YyRr, if Y and R are on different chromosomes
b. Genotype YyRr, if dominant Y and R are on the same chromosome, no crossing over
c. Genotype YyRr, if dominant Y and recessive r are on the same chromosome, no crossing over
d. Genotype YyRr, if dominant Y and R are on the same chromosome, 50% crossing over

Answers

Answer:

The correct answer would be -

1- YR, Yr, yR and yr.

2. Yr, yR

3. YR, yr

4. YR, Yr, yR & yr

Explanation:

A mature male or female haploid germ cell that fuses with another gamete of the opposite sex during the process of fertilization to make a zygote in sexual reproduction.

The law of Independent Assortment presented by Mendel says that alleles for different traits are passed and assort independently of one another in the gametes.

1. If Y and R on different chromosomes then they will produce four gametes and assort independently - YR, Yr, yR & yr.

2) If Y and R on the same chromosomes and no crossing over occurs then they will produce only two gametes as Y and R will not come together - Yr & yR.

3).  if dominant Y and recessive r are on the same chromosome, no crossing over then only two gametes will form as Y and r will not assort together - YR & yr.

4). if dominant Y and R are on the same chromosome, 50% crossing over produces 4 types of gametes, YR, Yr, yR & yr.

The final paragraph of the CNN report said that "several eye specialists" had pointed out that the study should have accounted for heredity. Myopia is passed down from parents to children. Myopic parents are more likely to have myopic children, and may also be more likely to leave lights on habitually (since the parents have poor vision). In what way does the knowledge of this possible genetic link affect how we interpret the data from the study? Explain.

Answers

Answer:

Myopia is a phenotype that results from interactions between genetic factors and the environment

Explanation:

A quantitative trait is a polygenic trait that depends on the cumulative effects of many genes and the environment. Some examples of quantitative traits include weight and height. Myopia is a quantitative trait whose phenotype depends on the combined action of different genes and the environment. It has been shown that genetics plays a central role in this trait (myopia), it is for that reason that myopic parents are more likely to have myopic children. However, there also are environmental factors (e.g., diet) which increase the risk to suffer myopia.

You are a glucose molecule in a disaccharide found in a drink that was sipped by an athlete who is about to begin running a 1600m (1 mile) race. Put the words in the list below in the appropriate order to describe the process of your journey from the mouth and ultimately to the muscle cells for energy.
a. electron transport system
b. active transport

c. stomach

d. pyruvate
e. brush border disaccharidases
f. carbon dioxide and water
g. mouth

h. citric acid cycle
i. glucose transporters
j. duodenum
k. glycolysis

l. jejunum
m. blood
n. esophagus

Answers

Answer:

Mouth -Esophagus-- Stomach -Duodenum -Jejunum -Brush border disaccharidases--Glucose transporters--Active transport--Blood-Glycolysis-Pyruvate--Citric acid cycle - Carbon dioxide and water  : )

Explanation:

The journey of a glucose molecule from the mouth and ultimately to the muscle cells for energy in the correct order is:

Mouth  > Esophagus  > Stomach > Duodenum  > Jejunum  > Brush Border Disaccharidases  > Blood  > Glucose Transporters > Glycolysis  > Pyruvate  > Citric Acid Cycle  > CO2 and Water  > Active Transport  > Electron Transport System.

The drink rich with disaccharides starts its journey from the mouth cavity and moves through the esophagus to the stomach. The disaccharide digestion takes place when it reaches the jejunum through the duodenum of the small intestine by enzyme maltase that also presents in Brush Border Disaccharidases to glucose.

Glucose moves o blood and through a glucose transporter for cellular respiration that starts with glycolysis that converts glucose to pyruvate and enters in TCA cycle and releases CO2 and water as byproducts that ultimately moves to the ETS system to provide energy to the muscles.

Thus, the correct answer is - given above in the correct order.

Learn more about the journey of carbon of glucose molecules:

https://brainly.com/question/7973068

i would appreciate it a lot if you answered this:

Answers

Answer:

the nucleus

Explanation:

Chromatin is a mass of genetic material composed of DNA and proteins that condense to form chromosomes during eukaryotic cell division. Chromatin is located in the nucleus of our cells. The primary function of chromatin is to compress the DNA into a compact unit that will be less voluminous and can fit within the nucleus.

which of the following statements about the cells of any multicelluar organisms is true

Answers

Answer The DNA in a cell is all the same

Explanation:

about minority intelligence levels may create feelings of vulnerability, which then undermine IQ

performance.

A. Stereotypes

B. Cultural bias

C. Socioeconomic issues

D. Inherited traits



It’s A

Answers

Answer: Stereotype

Explanation:

Stereotype is simply the expectation, belief or assumption witth regards to a certain group of people.

We should note that the stereotype about minority intelligence levels may bring about feelings of vulnerability, which then undermine the performance of ones intelligent qoutient.

Answer: A

Explanation:

Where does the water that a land plant uses for photosynthesis come from? The water comes from _____.


-Evaporation
-Condensation
-Precipitation

Answers

Answer:

precipitation

Explanation:

What causes the earths tides; describe the conditions for the largest tides?

Answers

Answer:

Earth's rotation and the gravitational pull of the sun and moon create tides on our planet. Because the sun is so much larger than the moon (27 million times more masssive), it has a much bigger graviational pull on Earth.

Which cell is a plant cell?

Answers

Answer:

b

Explanation:

Place the following events in
the cell cycle in the proper
order:
a. Anaphase
b. Cytokinesis
C. G2
d. Telophase
e. G1
f. Prophase
8. S
h. Metaphase

Answers

Easy: G1 stage, G2 stage, S phase, prophase, metaphase, anaphase, telophase and lastly cytokinesis

The cell cycle in the correct order is G1, S, G2, Prophase, Metaphase, Anaphase, Telophase, and Cytokinesis.

What is the cell cycle?

Prophase, metaphase, anaphase, and telophase are the four phases that a cell goes through. To form chromosomes, chromatin condenses (sister chromatids joined at the centromere).

In prophase, the chromosomes get shorter and thicker, in the center of the cell, during the metaphase, the chromosomes align. Chromatids separate during the anaphase process and travel to the opposing poles.

Telophase: Two nuclei are produced when nuclear envelopes have reformed around each chromosomal group.

Therefore, the cell spends the majority of its time in interphase, which is also when it grows, duplicates its chromosomes, and gets ready to divide.

Learn more about cells, here:

https://brainly.com/question/1600165

#SPJ2

True or False: Chromosomes can be seen with the naked eye.


Answers

the answer is false Because it is so thin, DNA cannot be seen by the naked eye unless its strands are released from the nuclei of the cells and allowed to clump together.

Which of the following is not true concerning the flow of energy through an ecosystem ​

Answers

Answer:

D. Most of the energy from photosynthesis flows out as heat

Explanation:

Energy flow is the amount of energy that moves through a food chain in a given ecosystem

HELP PLEASE DO THE WHOLE PAGE

Answers

Answer:

'krf'klmf

Explanation:

lkn4f4klng

Girl no that’s to much

when you move your hand up and down while holding on a jump rope, you make a wave. What is the medium

Answers

Answer:

The medium of the wave is the Rope.

Explanation:

This is because it is transverse wave and transverse wave need a medium to transfer energy and this is because in transverse wave,particles of the medium move in a direction that is perpendicular to the direction of the transverse wave. From the question, when you move you hand up and down, you make a wave and the direction of the wave is also up and down which is perpendicular to the direction of the wave.

Transcribe the following DNA strand. Then translate the tRNA strand you wrote.

Answers

Answer:

Transcription into mRNA strand will produce: ACU CAG CUG ACC GAC UGG CAU CUG

Translation into amino acid sequence will yield: Threonine- Glutamine- Leucine- Threonine- Aspartic acid- Tryptophan- Histidine- Leucine

Explanation:

- Transcription is the process by which DNA template is used to synthesize a mRNA molecule in the nucleus (eukaryotes). The transcription, which is carried out by an enzyme called RNA polymerase, follows the complementary base pairing rule i.e. A-T, G-C. Note that Uracil replaces Thymine in the RNA molecule.

Based on this question in which a DNA strand was given as follows: TGA GTC GAC TGG CTG ACC GTA GAC

The mRNA strand that will result from transcribing this DNA will be: ACU CAG CUG ACC GAC UGG CAU CUG

- Translation is the process by which mRNA strand is used to synthesize amino acid sequence (protein) in the ribosomes. In the mRNA sequence, nucleotides are read in a group of three called CODONS. Each codon specifies an amino acid. Based on the mRNA sequence as follows: ACU CAG CUG ACC GAC UGG CAU CUG, the amino acid sequence that will result after using the genetic code will be: Threonine (Thr)- Glutamine (Gln)- Leucine (Leu)- Threonine (Thr)- Aspartic acid (Asp)- Tryptophan (Try)- Histidine (His)- Leucine (Leu).

Which of the following statements is true?
OA. Chemical reactions can either absorb thermal energy or release thermal energy
ОВ.
Chemical reactions can only absorb thermal energy.
OC.
Chemical reactions can neither absorb thermal energy nor release thermal energy.
OD.
Chemical reactions can only release thermal energy.

Answers

I think the answer is A! i might be wrong

Answer: Chemical reactions can either absorb thermal energy or release thermal energy.

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