Answer:
A taxonomic key is a simple tool used to identify a specific object. A taxonomic key is one of the most useful tools available to scientists trying to identify an unknown organism. Systematists rely on keys to help identify known organisms and determine whether they have discovered a new organism entirely.
Explanation: Hope this helps
it would be nice if you could ples help me answer : Because endothermic animals must maintain a constant body temperature, they must
Question 8 options:
eat more often to have energy to keep a constant temperature.
become sluggish when it becomes to cold to conserve energy.
move to sunlight to warm, and shade to cool.
constantly move around to keep their bodies warm.
Answer !!!! I will give you 20 points
Answer:
its a cladogram :D
Explanation:
Answer:
it D
Explanation:
When light passes into a more dense material, it bends away from the normal
True or false
Answer : Flase
(つ ^_^ )つ Hey There!
Answer : False, When light passes from a more dense to a less dense substance, (for example passing from water into air), the light is refracted (or bent) away from the normal.
~Hope this Helps!~
Cells have all the components necessary for protein synthesis but viruses do not. Complete the following sentences to indicate which gene expression components are found in virus particles. Click on a term and drag into the blank space. A term may be used more than once.
A. RNA polymerase is______ present in a cell, but present in viruses.
B. tRNA is________ present in a cell, but present in viruses.
C. Ribosomes are________ present in a cell, but present in viruses.
D. Genes are_______ present in a cell, but present in viruses.
1. Never
2. Sometimes
3. Always
Answer:
A. RNA polymerase is always present in a cell, but sometimes present in viruses.
B. tRNA is always present in a cell, but Never present in viruses
C. Ribosomes are always present in a cell, but Never present in viruses.
D. Genes are always present in a cell, but always present in viruses..
Explanation:
A. RNA polymerase is always present in a cell, but sometimes present in viruses. RNA polymerase is the enzyme responsible for transcription in eukaryotic cells, it is the enzyme that stimulates transcription, that is, the passage from DNA to RNA. All RNA viruses encode in their genome an RNA-dependent RNA-polymerase (RdRp) that acts as a catalytic subunit, along with other viral and cellular proteins, in the replication of the viral genome. B. tRNA is always present in a cell, but Never present in viruses Transfer RNA is a type of ribonucleic acid that is responsible for transporting amino acids to ribosomes where, according to the sequence specified in a messenger RNA (transcribed, in turn , from DNA), proteins are synthesized. C. Ribosomes are always present in a cell, but Never present in viruses. Ribosomes are responsible for the granular appearance of the cytoplasm of cells. It is the most abundant organelle, several million per cell. Viruses do not have cytoplasm or ribosomes (elements necessary to form a cell), so they cannot multiply on their own and they need to infect the cell of another organism to do so.D. Genes are always present in a cell, but always present in viruses.Genes are the storage units of genetic information, they are fragments / segments of DNA that encode a specific functional product. Viruses are small pieces of RNA (ribonucleic acid) or DNA (deoxyribonucleic acid), many are encapsulated in an envelope made of base of proteins known as capsid, others protect their genetic material with a membrane or envelope derived from the cell they infect and some others also surround their capsid with a cell membrane. RNA viruses bring with them their own genetic information copying machines (eg, RNA polymerase enzyme) or possess genes (genetic information) that produce the proteins required to assemble the copying machines within the cell that they infect, thereby which makes them independent of the cellular machinery and capable of infecting cells that are not actively reproducing.
how to cultivate yam
Explanation:
Yams are produced through slips, which have been generated again from sprouts of mature yams, rather than seeds, as most other crops are. Split a yam in part and place one half in a bowl of cool water to develop sprouts.
I need help with this
Answer:
It is b. thermal
Explanation:
A plant species has two alleles for petal color: pink and white. The pink (A) allele is
dominant. If a true breeding pink flower is crossed with a carrier pink flower, what is the
probability in a percentage) that their offspring will be born as carriers for the white
flower trait? Use a Punnett Square to justify your answer
Answer:
There's no such thing as a carrier pink flower, as pink is a dominant trait. Only carrier white flowers are possible because white is recessive.
If you meant carrier white flower, the percentage of offspring born as carriers for the white flower trait is 50%
Explanation:
Punnett squares are in the image
How does the environment influence populations of organisms over multiple
generations?
Answer: Species can change over time in response to changes in environmental conditions through adaptation by natural selection acting over generations. ... Evolution results primarily from genetic variation of individuals in a species, competition for resources, and proliferation of organisms better able to survive and reproduce.
Explanation:
All of these ___ help to block, trap or flush pathogens out of the body.
What are the following 6-
A-e???
Answer:
natural barriers
Explanation:
skin, mucous membrane, tears, earwax, muscus, stomach acid
3. How do nutrients and other materials move in fungi?
Answer:
Nutrients and other materials from the environment are absorbed through mycelia. The branching mycelia have a high surface-area-to-volume ratio which allows the absorption of nutrients to be more efficient. Fungi may even digest nutrients by releasing enzymes into the environment.
Explanation:
I have a strange feeling that this isn't the answer you were looking for.
Question:
The phenylketonuria occurs in 1 of 10,000 individuals in a population. It is
caused by an autosomal recessive allele. Calculate the frequency of heterozygotes
in the population.
Answer:
10000 divided by 1 and then that answer
true or false the nucleus takes up about 30% of the cell’s volume
It is false that the nucleus takes up about 30% of the cell’s volume.
What is nucleus?The part of a cell that houses the chromosomes in biology is nucleus. The membrane-enclosed nucleus is where RNA is synthesized from the chromosomal DNA. Enlarge. component cells.
The nucleus' principal jobs include storing the cell's DNA, preserving its integrity, and assisting with transcription and replication.
One of the most noticeable features of a eukaryotic cell is its spherical nucleus, which normally makes up 10% of the cell's volume.
The genetic information and other instructions necessary for cellular functions are found in the double-membraned organelle known as the nucleus. It is one of the biggest organelles and is only present in eukaryotic cells.
Thus, the given statement is false.
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How many different amino acids are used in human proteins?
Answer:
20 amino acids
Explanation:
500 amino acids have been identified in nature, but just 20 amino acids make up the proteins found in the human body.
HELP ME PLEASE SOMEONE :(
Answer:
D
Explanation:
The other person is right, pls give them brainliest pls?
The students decide to model how the motion of two plates occurs. Which statement best describes the ability of the model to predictyplate movement? A The motion of the plates cannot be modeled on a scale that is much smaller than the plates themselves. B The motion of the plates cannot be modeled by simplifying the factors that contribute to plate movement. C The motion of the plates can be modeled by including only the main factors that contribute to plate movement. D The motion of the plates can be modeled only by including every factor that contributes to plate movement.
Explanation:
In my view, all factors are equally responsible for this.
1. What is structure A?
2. During which numbered step(s) (#1-6) is a restriction enzyme used?
3. Which structure (A, B or C) shows recombinant DNA?
4. Which structure (A, B, C, D) shows a transgenic organism?
Answer:
l
Explanation:
Structure A is a plasmid. A restriction enzyme is used in step 4. Structure C shows recombinant DNA. Structure D shows a transgenic organism.
What is DNA recombination?DNA fragments are broken and recombined during the recombination process to create novel allele combinations. The genetic diversity that results from this recombination process at the gene level reflects variations in the DNA sequences of various organisms.
Recombination happens when two DNA molecules trade genetic material with one another. When homologous chromosomes align in pairs and exchange DNA segments during prophase I of meiosis, one of the most notable instances of recombination occurs.
Therefore, the correct options are
a plasmid. step 4.Structure C.structure D.To learn more about DNA recombination, refer to the below link:
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What's the side effects of the flu vaccine nasal spray
A population of insects became divided when a flood created a lake in the middle of the original population. After many generations, the divided populations differ from each other in several traits such as wing color. Which process likely occurred
Answer:
the process is called allopatric speciation
Explanation:
when two organism separate each other by a geographical barrier or gepgraphical separation (because of flood) it is likely that the two organisms will evolve another certain characteristics.
PLEASE I NEED HELP ASAP :(
Answer:
b
Explanation:
the rest just wont help when you are trying to identify them
Place the pieces on the appropriate spot on the diagram.
32c
32f
212f
100f
212c
please help asap and I’ll give brainiest!
Answer:
I think so A is the answer
Explanation:
changes in Geology over Time ... relative age – a rock layer's age compared to other rock layers ... Fossils give clues on how Earth may ... weather. ▫This helps us to infer that West. Virginia and Pennsylvania were both ... in the area. ... Many fish. Silurian 438 to 408 mya. First insects, vascular plants on land.
i hope my answer is correct and would help a little bit.
an organisms habitat must provide all of the following except
Answer: Predators (trust me)
Answer:
except what? there are no possible answer
Explanation: Please give possible answers
Greenhouse gases are important to climate change because they
A. Are the best way to measure if the temperature is changing over time
B. help to trap energy from the sun in the Earth's atmosphere
C.help to block the radiation of the sun from harming Earth
D. are the main reason that the earth becomes warmer and cooler
Answer:
D
Explanation:
well, without the greenhouse gases the earth's temperature will drop drastically but too much of it will cause the earth's temperature to rise
Explanation:
Answer- help to trap energy from the sun in the Earth's atmosphere.
What are some ways that oceans influence climate change?
Answer:
Answer is below.
Explanation:
The oceans influence climate by absorbing solar radiation and releasing heat needed to drive the atmospheric circulation, by releasing aerosols that influence cloud cover, by emitting most of the water that falls on land as rain, by absorbing carbon dioxide from the atmosphere and storing it for years to millions of years.
Hope this helps:)
ANSWER: the oceans influence climate by absorbing solar radiation and releasing it is needed to drive the atmospheric circulation by releasing a resource that influence cloud cover by a meeting the most of the water that falls on land as a by absorbing carbon dioxide from the atmosphere and storing it for years to millions of years ii.
Explanation: hope it helps
What does it mean to be impartial?
O A. To be unbiased
OB. To be strong
O c. To be useful
D. To be smart
Answer:
i think A
Explanation:
PLEASE HELP!!! How many ATP can we get from one molecule of phosphocreatine?
a.1
b.2
c.10
d.32
Phosphocreatine is a chemical compound that provides high energy to the skeletal muscles. One molecule of phosphocreatine produces one ATP molecule. Thus, option a is correct.
What is phosphocreatine?The phosphocreatine system is a way to generate ATP and energy in the body (muscles). During muscle contraction, the phosphocreatine yields a phosphate molecule that in turn produces ATP.
The phosphocreatine system provides quick and fast energy in the form of ATP molecules through the anaerobic system that does not require oxygen. It gives its phosphate group to ADP to produce ATP as,
ADP + phosphocreatine → ATP + Creatine
The ATP-PC system yields only one molecule per phosphocreatine at a very fast rate for the muscles to utilize when doing any exercise or physical activity that involves contraction and relaxation.
Therefore, phosphocreatine produces 1 ATP.
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how do scientists use rock layers to date fossils ? USE IN YOUR OWN WORDS.
40 POINTS DONT SKIP !
Answer:
By comparing a fossil to similar rocks and fossils of known ages, relative dating can be used to estimate its age. Absolute dating is a method of determining the precise age of a fossil by using radiometric dating to measure the decay of isotopes, either within the fossil itself or, more commonly, the rocks that surround it.
Explanation:
5. DQ 5 Which of the following is NOT a class of clastic rock?
A.fossil
B.conglomerate
C.sandstone
D.shale
Answer:
B.conglomerate us not a class of clastic rock
A compact cluster of spore-bearing structures in
some seedless vascular plant sporophytes.
Answer:
B :)
Explanation:
can someone help???? Question: In what domain would humans be included?
A Eukarya
B Archea
C Bacteria
Answer:
A Eukarya
Explanation:
Answer:
A Eukarya
explanation: Eukaryotes are organisms whose cells have a nucleus enclosed within a nuclear envelope