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:
Describe two processes of weathering and two processes of erosion that are taking place in Sam's backyard.
es
Answer and Explanation:
When viewing the image of Sam's backyard, we can see the occurrence of chemical and physical weathering. Physical weathering is caused by the impact of water on rocks, which promotes the breakdown of rock particles. The chemical weathering is also caused by the water that I contact with the rock react with its elements causing chemical reactions that modify the rock.
Regarding erosion, we can consider the erosion by gravity that is common in mountainous regions, like the one shown in the photo. This type of erosion promotes the loss of mass of the rock due to the detachment and rolling of rock particles, due to gravity. We can also notice the rain erosion, created by the impact of water on the rock that detaches the fragments and transports them to other places.
Explain how fossils can be used to learn about earth’s past climates.
(is there a way to tell, is it like relative dating?)
Answer:
within these layers of sediment through time. The changing abundances of these fossils through time can tell us whether a change in the environment or climate was gradual or abrupt.
Explanation:
Fossils within these layers of sediment through time. The changing abundances of these fossils through time can tell us whether a change in the environment or climate was gradual or abrupt.
What do you mean by fossils?Fossils are the preserved remains of plants and animals whose bodies were buried in sediments, such as sand and mud, under ancient seas, lakes and rivers.
A fossil is any preserved remains, impression, or trace of any once-living thing from a past geological age. Examples include bones, shells, exoskeletons, stone imprints of animals or microbes, objects preserved in amber.
Fossils are the geologically altered remains of a once-living organism and/or its behaviour. There are two main types: body fossils represent all or part of the organism's body.
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pls help? it’s due at 11:59
Answer:
The answer is 2 birds.
Explanation:
I got to this conclusion by drawing a Punnett square.
The punnet square is below:
t t
T Tt Tt
t tt tt
Therefore, the answer is 2 birds, with a fifty per cent chance of having the same recessive and a 50 per cent chance of having different dominant.
Note:
It didn't allow me to use the technical science terms for the 'same' and 'different' as the system thought they were inappropriate words.
Please help me with this!!!!!!
which statement about DNA replication is true?
A. Prokaryotes only have one origin of replication to initiate replication
B. Prokaryotes can only replicate their single circular chromosome in the nucleus.
C. Eukaryotes can only replicate one segment of a chromosome at a time.
D. Eukaryotes only have one circular chromosome that unwinds at multiple locations.
How are bat forelimbs different from other mammals' forelimbs?
A: There are more bones.
B: The bones in the digits are longer.
C: Bats lack a thumb.
D: The wrist is more mobile.
Answer:
D
Explanation:
DDDDDDDDDDDDDDDDDDDDDDDDDDD
The forelimbs of bats are different from other mammals' forelimbs because the bat's wrist is more mobile. Therefore, option D is correct.
What are the functions of the forelimbs of bats?Tetrapod forelimbs are converted into bat wings. As mammals, bats have skeletal components in their wings that are morphologically similar to those in other tetrapod forelimbs. The primary function of the forelimbs of bats is to help them fly.
Wings are modified forelimbs. Skeletal changes enable muscle attachment and changed limb bones that can form wings to aid in aerial mobility. During the flight, the tail stabilizes and controls motions. The robust and well-developed muscles enable the beating of wings.
The forelimbs of bats are different from other mammals' forelimbs because the bat's wrist is more mobile. Therefore, option D is correct.
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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
Do you think that plants can get the building materials they need to grow from soil wateror air? Which ones? Explain your answer
Question 5 of 10
A child has learned to speak but is not able to understand the rules of a
game. He is likely in the stage.
A. preoperational
B. concrete operations
C. formal operations
D. sensorimotor
SUBMIT
Answer:
A) preoperational stage
Explanation:
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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How are the three domains, Bacteria, Archaea,
and Eukarya different?
Answer:
All of life can be divided into three domains, based on the type of cell of the organism: Bacteria: cells do not contain a nucleus. Archaea: cells do not contain a nucleus; they have a different cell wall from bacteria. Eukarya: cells do contain a nucleus.
Explanation:
Answer:All of life can be divided into three domains, based on the type of cell of the organism: Bacteria: cells do not contain a nucleus. Archaea: cells do not contain a nucleus; they have a different cell wall from bacteria. Eukarya: cells do contain a nucleus
Explanation:
Coal and oil are examples of
resources.
O non-natural
O non-efficient
O non-polluting
O non-renewable
How does tRNA determine the correct sequence in which to assemble the amino acids?
sequence of nitrogenous bases in DNA determines the order in which tRNA gets attached to mRNA
HOPE THIS HELPS
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Project: Abusive Relationship Resources.
Abusive relation ship resources Click the links to open the resources below. These resources will help you complete the assignment. Once you have created your file(s) and are ready to upload your assignment, click the Add Files button below and select each file from your desktop or network folder. Upload each file separately.
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Conduct online research on the classes of soil remediation: in-situ and ex-situ. Briefly describe your findings.
Answer:
(Answers may vary.)
There are two classes of soil remediation: in-situ and ex-situ.
In in-situ remediation, there is no excavation of the contaminated soil. This remediation is an economical way of cleaning up. However, it takes a long time for the treatment to be effective. In addition, the treatment is not uniform because of variability within soil and difficulty in monitoring remediation progress.
Ex-situ remediation involves excavating a contaminated area. In this method, the soil is either treated on the same site or transported to a remote site for cleaning. This type of remediation is complex and expensive, but very effective. It involves the following:
homogenization of the contaminated soil before treatment
monitoring to ensure that the soil is cleaned to the required level
Explanation:
Soil remediation is the process of making the soil pure and free of contamination which affect the health of the soil and the organisms that depend on it for their survival.
The two classes of soil remediation are:
In-situEx-situ
In-situ has to do with the treatment of the soil by removing the affected soil so that other parts of the soil does not get contaminated.
Ex-situ method is the process which involves taking the affected soil to an external site for decontamination which ensures that the other parts are not affected.
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Some PLEASE help!!!!!!!!!!!! TIMED
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-
What ability listed below is unique to bats compared to all other mammals?
Echolocation
Nocturnal hunting
Eating insects
Powered flight
The unique ability of bats as compared to other mammals is Echolocation. So, the correct option is A.
What do you mean by Echolocation?Echolocation may be defined as a physiological process for locating distant or invisible objects by means of sound waves reflected back to the emitter by the objects.
Echolocation is the unique ability of bats that have the capability to identify objects rather than seeing, while other mammals identify objects with help of sight.
Therefore, The unique ability of bats as compared to other mammals is Echolocation.
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Ribosomes are the site where
_______ are produced.
Amino acids are coded for by triplet bases in RNA called _______.
Answer:
plasma
Explanation:
nucleotide
shjshshais
Answer:
1.proteins
2.codons
Explanation:
the guy above is wrong
Waht is Environment Secretary?
Answer:
Thiru Sandeep Saxena, IAS, Additional Chief Secretary to Government, Environment and Forests Department, Government of Tamil Nadu.
Answer:
Thiru Sandeep Saxena, IAS, Additional Chief Secretary to Government, Environment and Forests Department, Government of Tamil Nadu.
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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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Do you think genetics play a role in the different skin colors we have on the top of our arms vs the bottom? Why or why not?
Answer:
the top of our arms may be darker because they get more exposure to the sun than under our arms causing them to be lighter
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.
Please help me
What is the average speed of an airplane that travels from New York to Los Angeles, a total distance of 4800 km, in 6.0 hours?
A. 800 km/hr
B. 0.00125 km/hr
C. 80 km/hr
D. 28,800 km/hr
Answer:
A
Explanation:
Because if you multiply 800 6.o it will give you 4800
pls do this right thanks you
Answer:
4: issac newton
5.D
6. d
Explanation:
yeah
PLEASE HELP ME
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Answer:
the following picture attached will help you
Explanation:
DNA makes RNA makes proteins
it starts with the relpication process above it, it will be DNA then it does a transcription process to mRNA(RNA) and then the last process called translation process into Proteins....
Hope this helps!!!
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.
Distinguish between natural selection and artificial selection.
Answer:
Natural selection is based on an animal's adaptive characteristics. Artificial selection is dependent on human-selected attractive characteristics. Natural selection only passes on positive or desirable characteristics to subsequent generations.
Explanation:
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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.