While it may seem obvious today, most people at the time did not believe that fossils were once part of living creatures. The reason was that the fossils of clams, snails, and other marine animals were found in tall mountains, miles from any ocean. Two schools of thought explained these fossils. Some religious writers believed that the shells were washed up during the Biblical flood. But this explanation could not account for the fact that fossils were not only found on mountains, but also within mountains, in rocks that had been quarried from deep below Earth’s surface. Seeking an alternate explanation, other writers proposed that the fossils had formed within the rocks as a result of mysterious forces. In other words, fossil shells, bones, and teeth were never a part of a living creature!
Steno had other ideas. For Steno, the close resemblance between fossils and modern organisms was impossible to ignore. Instead of invoking supernatural forces to explain fossils, Steno concluded that fossils were once parts of living creatures. He then sought to explain how fossil seashells could be found in rocks far from any ocean. As in the Tyrannosaurus rex Figure 11.10, fossils resemble living organisms.
Superposition of Rock Layers
Steno first proposed that if a rock contained the fossils of marine animals, the rock was formed from sediments that were deposited on the seafloor. These rocks were then uplifted to become mountains. Based on those assumptions, Steno made a remarkable series of conjectures that are now known as Steno’s Laws.
Which of the following appear to cause movement of the Earth's tectonic
plates?
Answer:
The force that causes most of the movement is thermal convection, where heat from the Earth's interior causes currents of hot rising magna and cooler sinking magna to flow
Explanation:
Which of the following is NOT a structural feature of a neuron:
A. synaptic cleft
B. cell body
C. dendrites
D. axon
E. node of Ranvier
Answer:
A. synaptic cleft
Explanation:
The synaptic cleft isn't a structural part of the neuron, it is a space that separates two neurons :)
help pleaseeeeeeeeeeee ( use your own words if you can ) What is the difference between prokaryotic and eukaryotic cells?
Note* - i am writing it in points like firstly i write the point of prokaryotics in sequence and then eukaryotic.
➣ Eukaryotic[tex]\blue\star[/tex] These are the single cell organisms
[tex]\blue\star[/tex] They are having a simple body structure
[tex]\blue\star[/tex] Double membrane organelles are absent
[tex]\blue\star[/tex]One cell do all the activities
[tex]\blue\star[/tex] It includes Bacteria etc.
➣ Prokaryotics[tex]\blue\star[/tex]These are the multicellular organisms
[tex]\blue\star[/tex] They are having a complex body structure
[tex]\blue\star[/tex]Double membrane organelles are present
[tex]\blue\star[/tex]Different cells do different activities
[tex]\blue\star[/tex]It includes plant cell , animal cell etc.
Hope i helped u
This sequence of nucleotides represents a mRNA: AAAGCGAUUGACAUGGUGACUCAU. How many amino acids are coded by this segment of mRNA?
Answer:
8 amino acids
Explanation:
AAA GCG AUU GAC AUG GUG ACU CAU- 8 sections
Can you use Binomial nomenclature in a sentence please? I need help!
(Here's the definition to help btw): A system of nomenclature in which each species is given a unique name that consists of a generic and a specific term.
Other than crossing over, what is another way that meiosis created genetic diversity in sex cells?
Answer:
During prophase of meiosis I, the double-chromatid homologous pairs of chromosomes cross over with each other and often exchange chromosome segments. This recombination creates genetic diversity by allowing genes from each parent to intermix, resulting in chromosomes with a different genetic complement.
Explanation:
YO PLZ HELP!!
The Golgi apparatus modifies, sorts, and packages different substances for secretion out of the cell, or for use
within the cell.
Answer: The Golgi apparatus modifies, packages, and sorts proteins for secretion or use within the cell
Explanation:
The Golgi apparatus modifies, sorts, and packages different substances for secretion out of the cell, or for use within the cell. The Golgi apparatus is found close to the nucleus of the cell where it modifies proteins that have been delivered in transport vesicles from the RER.
Hope this help.
Answer:
.......................
have a good day :)
Explanation:
NEED HELP PLEASE as soon as possible
Some bacteria reproduce through both sexual and asexual reproduction. Which of the following is the most likely description of asexual reproduction in bacteria?
A. single cell divides, producing two new cells that have half the parent cell's genes.
B. A single cell makes copies of its DNA and divides, producing two identical offspring.
C. Sex cells from each parent combine to produce offspring
D. A bridge forms between two cells, allowing an exchange of genetic information
B. is the correct answer
EXPLANATION OF HOW BIG PANDA EVOLVE OVER THE YEARS?
Need it ASAP
Pleasee
Answer:
en español
Los pandas gigantes y los distantemente relacionados pandas rojos desarrollaron independientemente un “dedo” adicional —un falso pulgar— a través, aparentemente, de cambios en los mismos genes.
Las dos especies comparten un antepasado común que vivió hace más de 40 millones de años. Los pandas gigantes (Ailuropoda melanoleuca) son parientes lejanos de los otros osos, mientras que los pandas rojos (Ailurus fulgens) están más estrechamente relacionados con los hurones. Ambas especies subsisten con una dieta compuesta casi en su totalidad de bambú, gracias a la ayuda de un dedo falso.
Explanation:
Giant pandas and the distantly related red pandas independently developed an additional "finger" - a false thumb - apparently through changes in the same genes.
The two species share a common ancestor that lived more than 40 million years ago. Giant pandas (Ailuropoda melanoleuca) are distant relatives of the other bears, while red pandas (Ailurus fulgens) are more closely related to ferrets. Both species subsist on a diet composed almost entirely of bamboo, thanks to the help of a false finger.
how does the heart muscle differ from the muscle in your arm?
Answer:
While skeletal muscles are arranged in regular, parallel bundles, cardiac muscle connects at branching, irregular angles, called intercalated discs. Striated muscle contracts and relaxes in short, intense bursts, whereas smooth muscle sustains longer or even near-permanent contractions.
Answer:
Unlike skeletal muscle tissue which you can control, cardiac muscle tissue works to keep your heart pumping through involuntary movements
The organic compound below consists of an adenine molecule (blue), a ribose (purple), and three phosphate groups (orange). A compound has an adenine molecule, a ribose molecule, and 3 phosphate groups. Which compound is shown? chlorophyll ferredoxin ATP NADPH
Answer:
ATP
Explanation:
Adenosine Triphosphate (ATP) is an organic compound composed of an adenine nucleotide base attached to a ribose sugar and three (3) phosphate groups bonded to one another by high-energy (phosphoanhydride) bonds. In the ATP molecule, the ribose sugar is attached to a phosphate group. ATP is known as the energy unit of the cell because the energy released by the hydrolysis of phosphoanhydride bonds can be used to drive unfavorable reactions. ATP is also involved in intracellular signaling pathways by acting as a substrate for kinase proteins that transfer phosphate groups during phosphorylation.
Answer:
ATP
Explanation:
TRUST
Please help, I have no clue
Answer:
FRESHWATER FISH DUH. LIKE THE PERSON BIHIND ME SAID.
Explanation:
What is the process that allows people to improve the chances that offspring will have a desired trait
Answer: Selective breeding
Explanation:
Selective breeding or artificial breeding is a process that allows humans to select parents in plants and animals that have desirable traits. Such parents are bred to produce offspring that have desirable traits from both parents. Humans have bred many species of plants and animals to improve the quality of plant and animal yields in terms of crops, milk, meat, eggs, and other derivatives.
This is for today help me pls!!
Answer:
I do not see the picture
Explanation:
Which phrase best defines evolution by natural selection? pls help
Answer:
A process of change in a species over time. Interbreeding among members of a population results in. No change in the relative frequencies of alleles in the gene pool.
Answer:
Process where certain individuals in a population survive because they are better adapted to their environment, so they are more likely to pass on their genes. The mechanism of evolution.
Translate the following DNA Strand:
AUG GUA GGC CAU UAG
Answer:
UAC CAU CCG GUA AUC
Explanation:
Air at the equator is warmer and less dense than air at the equator at latitudes farther north and south. This is because the equator receives
more....
A. wind
B. air pressure
C. solar energy
D. greenhouse gases
10 pointsSIENCE
According to the chemical equation for photosynthesis below, plants
produce chemical energy for life processes.
6CO2 + 6H2O → C6H1206 + 602
What chemical energy do plants produce? (7.5A)
A
water (H20)
B
oxygen (O2)
C
glucose (C6H1206)
D
carbon dioxide (CO2)
А.
B c
M
Answer:
c. glucoseExplanation:
it is broken down to produce energy
A male and a female, both with dimples, have a son without dimples. Which of Mendel's laws does this pattern of inheritance illustrate, and how do you know? AND What is the chance that a daughter of these parents would have dimples? Explain your answer.
Answer:
Explanation: Could you have drawn something different in question 3d? Explain. ... yes if both parents are heterozygous. 14 Chance no dimples. 1/4 dd 1/4 no ... If a woman is heterozygous for dimples and has 5 fingers, and a male is ... a Punnett square and calculate genotype and phenotype frequencies to explain your answer.
People also ask
According to the Mendel's Law of Segregation. Since, a male and a female, both with dimples, have a son without dimples which mean both the parents are heterozygous (Aa). since both are Aa × Aa there will be Aa, Aa, AA, aa. in which AA is dominant and aa is recessive thus the chance that a daughter of these parents would have dimple is 3/4.
What is Mendel's law of segregation?
Mendel's Law of Segregation states that a diploid organism passes a randomly selected allele for a trait to its offspring, such that the offspring receives one allele from each parent.
Thus, the chance that a daughter of these parents would have dimple is 3/4.
To learn more about Mendel's law of segregation click here:
https://brainly.com/question/21489073
describe the sembiotic relationship between bacteria and leguminious plants
Answer:
legumes are able to form a symbiotic relationship with nitrogen-fixing soil bacteria called rhizobia.The result of this symbiosis is to form nodules on the plant root,within the bacteria can convert atmospheric nitrogen into ammonia that can be used by the plant
Legumes are able to form a symbiotic relationship with nitrogen-fixing soil bacteria called rhizobia. The result of this symbiosis is to form nodules on the plant root, within which the bacteria can convert atmospheric nitrogen into ammonia that can be used by the plant.
-Additional Information-
What is the symbiotic relationship between plants and bacteria?
Beyond fungi, some plants engage in symbiosis with bacteria called rhizobia that “fix” nitrogen from the atmosphere, making it available to the plant. Rhizobia enable legumes like soybeans and alfalfa to grow without nitrogen fertilizer.
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Hope It helps!
During meiosis, a process known as crossing over occurs. Which statement below summarizes the results of crossing over?
O Homologous chromosomes make copies of each other.
Genetic information is removed from both chromosomes.
O DNA winds up into chromosomes and genetic information is deleted.
O DNA is exchanged between homologous chromosomes, resulting in genetic variation.
Answer:the answers is B
Explanation:
Because reproduction occurs between homologous a chromosome
During meiosis, a process known as crossing over occurs. Genetic information is removed from both chromosomes.
What is meiosis ?Meiosis is the process where a single cell divides twice to produce four four haploid daughter cells which are otherwise called as gametes; It can occur in two substages such as meiosis I and meiosis II.
Humans have 46 chromosomes in every cell, where 23 chromosomes t came from one of our parents and 23 very similar chromosomes that came from the other parents.
Meiosis I consist of substages like Prophase I where nuclear envelope disintegrates, Chromosomes begin to condense, Spindle fibres appear.
Secondly Prometaphase I where Spindle fibres attach to the centromere followed by Metaphase I where The homologous chromosomes align at the equatorial plate, Anaphase I where he homologous chromosomes move towards the opposite poles.
Telophase I where Spindle fibres disappear, Cytokinesis I where the cytoplasm and the cell division result in 2 non-identical haploid daughter cells.
For more details regarding meiosis, visit
brainly.com/question/11622266
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Which of the following is found in plant cells and NOT in animal cells?
Cell membrane
Cell Wall
Cytoplasm
Mitochondria
HELP!!
the answer is calculated to "Cell Wall"
Explanation:
I'm pretty sure that it's cell wall!
Carefully analyze the above chart. After a natural disaster takes place, which of the following sequences best identifies
the three phases of recovery that take place?
A) risk, avoidance, reconstruction
B) restoration, reconstruction, reactivity
C) emergency, risk, restoration
D
emergency, restoration, reconstruction
E) risk, reactivity, restoration
Answer: D. emergency, restoration, reconstruction
Explanation: found it in the textbook
Choose any adaptation found in the desert (hot or cold). Describe how it helps the organism survive and/or reproduce in that biome. DO NOT CHOOSE A CAMEL HUMP
Answer:
Cactus spines
Explanation:
The cactus spines keep predators away and prevent different organisms from eating it. This helps it to survive in the desert. Another adaptation is very thick, waxy cuticle help to reduce water loss by evaporation.
Which of the two types of cell division (mitosis or meiosis) would lead to genetic differences between cells?
Answer:
There are two types of cell division: mitosis and meiosis. Most of the time when people refer to “cell division,” they mean mitosis, the process of making new body cells. Meiosis is the type of cell division that creates egg and sperm cells. Mitosis is a fundamental process for life
Mitosis produces two diploid (2n) somatic cells that are genetically identical to each other and the original parent cell, whereas meiosis produces four haploid (n) gametes that are genetically unique from each other and the original parent (germ) cell
Explanation:
Help me please will mark brainliest
Answer:
ecosy8, population, species, community
a bag of candy has 53 chocolate drops and 65 gum drops. what is the theoretical probability of picking gum drop from the bag?
Answer:
65/118
Explanation:
Because there is a total of 118 in the bag and only 65 are gum drop
Which best describes ideal growing conditions for fungi?
moist and warm
hot and dry
cool and damp
wet and cold
Answer:
Moist and Warm because fungi is bomb
Answer:
moist and warm
Explanation:
i has some fungi on trees :3
Oranges, limes and curd have a sour taste. Why?
Answer:
They all have citric acid and other acids in them... which is the sour taste...
Explanation:
also prolly sounds dum.b the way i did it....
Answer:
wanna zoo.m
Explanation:
What are the changes in distribution of adaptations of anatomical, behavioral, and physiological traits in a population?
Evolution is a process that results in changes in the genetic material of a population over time. Evolution reflects the adaptations of organisms to their changing environments and can result in altered genes, novel traits, and new species.