Answer:
Changes in population size may have important effects on genetic variation and on the survival potential of viral species. Genetic bottlenecks are evolutionary events that reduce genetic variation of a population in a stochastic manner and result in founding populations that can lead to genetic drift.Explanation:
Hopes this helps. Mark as brainlest plz!Rewrite the TEKS for taxonomy as if you were explaining it to a kindergartener.
(A) define taxonomy and recognize the importance of a standardized taxonomic system to the scientific community;
(B) categorize organisms using a hierarchical classification system based on similarities and differences shared among groups; and
(C) compare characteristics of taxonomic groups, including archaea, bacteria, protists, fungi, plants, and animals.
The atom of sodium has one valence electron. To form a bond, the sodium atom should
Answer:
Loose that one electron
Explanation:
Sodium is a member of group 1 in the periodic table. The members of this group are known to form a univalent positive ion and are highly electropositive.
They give out one electron and go into electrovalent of ionic combination.
Hence, for sodium to form a bond, it looses the only electron in its outermost shell.
why are some penguin species geographically isolated from other penguin species?
Answer:
Penguins generally live on islands and remote continental regions free from land predators, where their inability to fly is not detrimental to their survival. Penguins are usually found near nutrient-rich, cold-water currents that provide an abundant supply of food. ...
Explanation:
Penguins generally live on islands and remote continental regions free from land predators, where their inability to fly is not detrimental to their survival. Penguins are usually found near nutrient-rich, cold-water currents that provide an abundant supply of food.
What do you mean by predators?Predators are organisms that hunt and kill other organisms for food. The organisms that are consumed by the predators are known as the prey. Predators can be carnivores and omnivores. Lions, tigers, sharks, and snakes, all are predators.
Moreover, the best-known examples of predation involve carnivorous interactions, in which one animal consumes another. Think of wolves hunting moose, owls hunting mice, or shrews hunting worms and insects.
Therefore, predators are wild animals that hunt, or prey on, other animals. All animals need food to live. Predator animals need the flesh of the animals that they kill to survive. Weasels, hawks, wolves, mountain lions, and grizzly bears are all predators.
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6. The first trial of a controlled experiment allows a scientist to isolate and test
(1) a logical conclusion (2) a variety of information
(3) a single variable (4) several variables
Answer:
(3) a single variable
Explanation:
A control experiment can be defined as an experiment in which a condition assumed to be a probable cause of the effect is being compared to the same situation by the scientist without involving or using the suspected condition.
Controlled variable refers to anything or quantity such as group, person, event, etc., that is held constant by the researcher during an experiment and as such is limited.
The first trial of a controlled experiment allows a scientist to isolate and test a single variable.
Generally, most scientific experiments usually have a control group so as to avail scientists (experimentalists) an ability to compare the outcome of their test results before testing a single variable. This control group is not given the treatment or influenced by the same single (independent) variable as the experimental group.
Therefore, this is the reason why science completely or totally rejects any hypothesis which is not supported by observations, as well as the results obtained from control experiments.
This ultimately implies that, for any hypothesis to be acceptable in science, it must be supported by observations and the results of control experiments; this give rise to factual informations, theories and by extension solutions to problems.
The passageways which permit blood to circulate through bones are called______canals.
-periosteum
-cartilage
-Haversain
Answer:
its Haversian not Haversain hope it helps
true or false mutation alone can cause rapid evolution
Answer:
true ig
Explanation:
how does fossil fuel use affect the climate
Answer:
Fossil fuels produce large quantities of carbon dioxide when burned. Carbon emissions trap heat in the atmosphere and lead to climate change. In the United States, the burning of fossil fuels, particularly for the power and transportation sectors, accounts for about three-quarters of our carbon emissions.
Explanation:
- Eijiro <3
Which term best describes the pattern of distribution for the human population shown in the picture?
Answer:
even.
Explanation:
pls do this right thanks you
Answer:
4: issac newton
5.D
6. d
Explanation:
yeah
who discovered cell?
Answer:
Robert Hooke discovered cells
Answer:
Alexander Fleming discover the cell in our body
G G A---T A G---C C G---T T A Find the mRNA strand. *
Answer:
CCU-----AUC----GGC-----AAU
Explanation:
This question is describing the process of transcription, which is the process by which a DNA strand is used as template to synthesize a mRNA strand or molecule. This synthesis in transcription, which is carried out by an enzymes called RNA polymerase, is based on the COMPLEMENTARY BASE PAIRING RULE.
Complementary base pairing rule states that Adenine base will always hydrogen pair with Thymine while Guanine will always pair with Cytosine. However, Uracil base (U) replaces Thymine (T) in RNA. Hence, the pairing is as follows: A-U, T-A, G-C etc.
Based on the above, a DNA strand containing the following sequence: G G A---T A G---C C G---T T A will be transcribed into the following sequence of mRNA: CCU----AUC----GGC----AAU.
(NO LINKS)
In the transcription process, segments of DNA serve as templates to produce what kind of base sequences in RNA molecules?
A. complementary
B. identical
C. opposite
D. random
Answer:
A.
Explanation:
I don't have an explanation
In the transcription process, segments of DNA serve as templates to produce complementary RNA molecules.
Ribonucleic acid (abbreviated RNA) is a nucleic acid present in all living cells that has structural similarities to DNA. Unlike DNA, however, RNA is most often single-stranded. An RNA molecule has a backbone made of alternating phosphate groups and the sugar ribose, rather than the deoxyribose found in DNA. Attached to each sugar is one of four bases: adenine (A), uracil (U), cytosine (C) or guanine (G). Different types of RNA exist in cells: messenger RNA (mRNA), ribosomal RNA (rRNA) and transfer RNA (tRNA). In addition, some RNAs are involved in regulating gene expression. Certain viruses use RNA as their genomic material.
Ribonucleic acid, or RNA. I often think of RNA as being the less well-known cousin of DNA, particularly for people outside the field of biology or genomics. But really, when you think about it, RNA, in so many ways, is the actual functional form of nucleic acids that really the body uses to do the business of, you know, constructing cells or responding to immune challenges, of carrying amino acids from one part of the cell to the other, that quite often I feel that RNA doesn't get the respect it deserves. So what I think we can share is that the different forms of RNA -- mRNA, tRNA, rRNA -- each in their own way have absolutely fundamental functions without which the biology of the genome could not be translated into practice.
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I NEED HELP WITH THESE TWO QUESTIONS! Brainliest for correct replies!
Answer:
5 Million Years Ago
Explanation:
Tell me if I'm wrong I'll fix it. Thx!
Help me pleaseeee!!???
Answer:
it A
Explanation:
pick A hopefully it right
A tick crawls onto a cat and attaches to the cat's skin which type of symbiotic relationship is being described
Answer:
Parasitism!
Explanation:
The tick is being benefited while the cat suffers.
What are the three types of Fossils? Group of answer choices Body, Trace, and Chemical Bones, Soft Tissue, and Fecal Oil, Coal, and Natural Gas Chemical, Physical, and Biological
Answer:Body, Trace, and Chemical Bones
Explanation:
Fossils are remains of ancients organisms that are preserved. They are usually in rock form. This remain could be compressed after the decay of other body part, it indicates the existence of a particular organism at a time.
Fossil can be Body fossils : this include body structures suck as teeth, hand or any other body part that is not decayed.
Trace fossils are rock materials or substance that indicated the existence of an organism and Chemical Bones - Bones are specialized body structure, it also helps identify an organism existence and for record.
Distinguish between phenotype and genotype.
Explanation:
Phenotype is the PHyiscal trait e.g height, eye colour and blood type.
Genotype is the GENE of the trait or the alleles. E.g height; tall is T, short is t. these are the alleles that could make up the height.
Why was the discovery of DNA important to our daily lives?
Answer:
Understanding the structure and function of DNA has helped revolutionise the investigation of disease pathways, assess an individual's genetic susceptibility to specific diseases, diagnose genetic disorders, and formulate new drugs. It is also critical to the identification of pathogens.
All cells must have?
Answer:
All cells share four common components: (1) a plasma membrane, an outer covering that separates the cell's interior from its surrounding environment; (2) cytoplasm, consisting of a jelly-like region within the cell in which other cellular components are found; (3) DNA, the genetic material of the cell; and (4)
Explanation:
Explanation:
In order to accomplish them, they must have: A cell membrane that separates the inside of the cell from the outside. By concentrating the chemical reactions of life inside a small area within a membrane, cells allow the reactions of life to proceed much faster than they otherwise would.
The main reason why this type of model would be developed is that an animal cell
A. is too large to be observed directly
B. is too small to be observed directly
C. moves too quickly to observe directly
D. poses too much risk to observe directly
When the Wave gets Smaller in Size, What happens to the frequency (strength) of the wave ?
Answer:
The frequency goes down
Do you think that plants can get the building materials they need to grow from soil wateror air? Which ones? Explain your answer
Chromosome definition in your own words
What do you mean by respiration?
Answer:
respiration is the process of intake of oxygen and excrete out a carbon dioxide by our body.
Answer:
a process in living organisms involving the production of energy, typically with the intake of oxygen and the release of carbon dioxide from the oxidation of complex organic substances.
please answer this. i need this.
Answer:
The scorpionsExplanation:
If you look the scorpion would only eat the insects so if the insects were removed then the scorpions wouldn't have any food and would die out causing extinction.
Hope I helped! Have a good day! . . . . or don't its up to you-
1. Write Tor F beside each of the
following statements.
This picture shows
a. The Earth orbiting the Moon.
_b. Earth revolving around the Sun
C. The Sun revolving around the Earth
d. The Moon orbiting the Earth.
e. The Moon revolving around the Earth.
f. The Earth orbiting the Sun.
Answer:
A. The earth orbiting the moon (false)
B. Earth revolving around the sun (true)
C. The sun revolving around the earth (false)
D. The moon orbiting the earth (true)
E. The moon revolving around the earth (true)
F. The earth orbiting the sun (true)
sorry if I'm wrong anywaysWhat land conservation practices is illustrated
Answer:
No till farming
Explanation:
There is an article about no till farming that uses this image as an example.
Fossils are actually formed from minerals in the exact shape of the original bone.
Question 5 options:
True
False
Fossils being formed from minerals in the exact shape of the original bone is False.
What is a Fossil?This refers to any remains, impression, or trace of any once-living thing from a past geological age which have been preserved in the earth crust.
They are formed through mineral replacement from water beginning when an organism dies and is buried and not from the original substance.
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Answer: true
Explanation: fossils are formed in the original shape of the tissue or organism
Scientists use many resources to piece together the history of life on Earth. The fossil record is one source of information that can help scientists understand the way life on Earth has changed over millions of years. What does the fossil record tell us about the history of different species on Earth?
Answer:
See explanation
Explanation:
Fossil records contain an extensive detail of the evolution of various species on earth which have been preserved in the remains of these organisms or imprints that organisms that existed long ago must have left in sedimentary rocks.
Fossil records basically tell us about the past. They tell us about the species that once existed on earth. They also tell us how long these species existed and how the were related to other species.
This information help us to work out how these organisms lived and the environment where they lived.
Answer: B
Species remain the same over time.
Explanation:
(PLESE HELP) If you exert a force of 500 N to walk 4 m up a flight of stairs in 5 s, how much power do you
use? (INCLUDE THE UNIT for power!)
Answer:
100 good luck with the answer
Answer:
500 watts
Explanation:
power=force×vertical distance/ time
2000J/4s
500 watts