Answer:
Fossils are the preserved remains or traces of animals, plants, and other organisms from the past. Fossils range in age from 10,000 to 3.48 billion years old. The observation that certain fossils were associated with certain rock strata led 19th century geologists to recognize a geological timescale.
Explanation:
good luck have a nice day
17. Which answer choice best describes a community?
Answer:
Different species of lizards occupying the same niche in a dessert
Explanation:
Multiple species in one habitat
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Which of these four solutions will dissolve the plastic wrapper fastest?
Water
Boiling water
Apple cider vinegar
Soda
Acetone
Answer:
Acetone
Explanation:
Answer: Acetone.
Explanation: Acetone molecules have a polar carbonyl group that allows them to ACCEPT hydrogen bonds from OTHER compounds. The slightly positive charge on each hydrogen can attract slightly negative oxygen atoms on other water molecules, forming hydrogen bonds. If acetone is added to water, acetone would completely dissolve.
How is form used in classification?
what type of disorder does a monosomy have?
Nondisjunction. Monosomy would mean it's missing a chromosome.
describe the structure of an atom of argon-38 and argon-40
Answer:
Argon 38 has 18 proton and 20 neutron
Argon 40 has 18 proton and 22 neutron
Explanation:
isotope is same no of proton diff no of neutron
Both argon-38 and argon-40 have 18 protons but they have different atomic masses. The atomic mass of argon-38 is 38u while the atomic mass of argon-40 is 40u. Thus, they are isotopes.
What are isotopes? Some atoms contain the same number of protons (i.e. same atomic number) but they have a different number of neutrons (i.e. different mass numbers). These types of atoms are called isotopes.Argon element has three isotopes namely, argon-36, argon-38 and argon-40. All the three isotopes of argon have the same number of protons i.e. 18. But, all have different numbers of neutrons and thus, different mass numbers. Argon-36 has 18 neutrons, argon-38 has 20 neutrons and argon-40 has 22 neutrons. Thus, the mass numbers of argon-36, argon-38 and argon-40 are 36u, 38u and 40u respectively.Thus, the structure of an atom of argon-38 and argon-40 is slightly different as they are isotopes. Argon 40 has more atomic mass than argon-38. But, both contain the same number of protons. They have similar chemical properties but different physical properties.
Learn more about isotopes here:
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A genetic disorder is caused by a mutation on DNA.
A. True
B. False
Answer:
True
Explanation:
Genetic disorders can be caused by a mutation in one gene(monogenic disorder) by mutations in multiple genes
In a paternity case there is a child with type O blood, and the mother has type A. The first potential Father has type A blood as well and the second potential Father has type B blood. Would blood type be enough to tell us which man is the father? *
Answer:
Blood type information is not enough to tell us which man is the father. We need to know the exact genotype of individuals to know which father gave the child a recessive allele.
Explanation:
Due to technical problems, you will find the complete answer and explanation in the attached files
Which of the following is made by male plant cells and is important for the reproduction of flowering plants?
A. ovule
B. photosynthesis
C. pollen
D. stigma
10. WHAT DO YOU THINK IS THE MOST DANGEROUS
EVENT THAT CAN HAPPEN AT A PLATE BOUNDARY? WHY?
Answer:
Movement in narrow zones along plate boundaries causes most earthquakes. Most seismic activity occurs at three types of plate boundaries—divergent, convergent, and transform. As the plates move past each other, they sometimes get caught and pressure builds up.
Explanation:
I hope it helps
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#Captainpower
Butterflies come in many different colors, but some butterflies incomplete dominance. Dark blue is incompletely dominant to white. If a dark and a light blue butterfly are crossed , what is the probability that an offspring will be white?
A. 0%
B. 100%
C. 25%
D. 50%
Please help me answer this question!
I NEED SOME HELP...
What are ions
14 points if you answer this
Answer:
Ions are an atom or group of atoms that either has a positive or negative charge. An ion with a negative charge is called an anion and one with a positive charge is a cation.
Hope this helps :)
Opposite of cellular respiration
Answer:
On a simplified level, photosynthesis and cellular respiration are opposite reactions of each other. In photosynthesis, solar energy is harvested as chemical energy in a process that converts water and carbon dioxide to glucose. Oxygen is released as a byproduct.
Answer: Photosynthesis
Explanation: Cell respiration and photosynthesis are essentially opposite processes. Photosynthesis is the process by which organisms make high-energy compounds – the sugar glucose in particular – through the chemical "reduction" of carbon dioxide (CO2).
9. The Sun provides Earth with both light and thermal energy. Which of
the following is an example of the Sun's thermal energy at work in the
water cycle?
a. Accumulation
b. Precipitation
C. Condensation
8
d. Evaporation
Answer: The answer is d!
Explanation:
What has been the experience of cats and dogs in space? Explain several different situations in which cats and dogs were involved with space travel. its astronomy
Answer:
Animals in space originally served to test the survivability of spaceflight, before human spaceflights were attempted. Later, other animals were flown to investigate various biological processes and the effects microgravity and space flight might have on them. Bioastronautics is an area of bioengineering research which spans the study and support of life in space.
Explanation:
Example 1: Albert II became the first monkey in space on June 4, 1949. He reached an altitude of 83 miles (134 km), but died on impact when the parachute failed. A previous monkey, Albert I, died when the V-2 rocket failed before reaching peak altitude. Two other monkeys, Albert III and IV, also died when their rockets failed.
Example 2:A mouse launched on Aug. 15, 1950, attained an altitude of 85 miles (137 km), but died when the rocket disintegrated due to parachute failure. Several other mice were launched during the 1950s.
Example 3 (and the most important example): Laika became the first living being to orbit the Earth on Sputnik 2, Nov. 3, 1957. She died several hours into the flight from stress and heat.
Indicate whether each of the following occurs in the ER (E), Cytoplasm (C), Golgi apparatus (G), lysosome (L) or mitochondria (M). Your answer would be a four-letter string composed of letters E, C, G, L and Monly (e.g. ECEM, please do not use spaces). You may choose the same letter twice or not choose it at all. This is an all or none questions, no partial credit will be given.
(1) Addition of the first GlcNAc oligosaccharides to the asparagine residue of a protein
(2) Synthesis of phosphatidylcholine
(3) Degradation of misfolded ER protein
(4) O-linked glycosylation
Answer:
EELG
(1) Addition of the first GlcNAc oligosaccharides to the asparagine residue of a protein occurs in the Lumen of the Endopslamic Reticulum
(2) Synthesis of phosphatidylcholine occurs in the Endoplasmic Reticulum
(3) Degradation of misfolded ER protein ossurs in the Lysosome
(4) O-linked glycosylation occurs in the Golgiapparatus
Explanation:
1. The covalent attachment of a carbohydrate to a macromolecule such as proteins or lipids is known as glycosylation.
N-linked glycosylation is a very common form of glycosylation and it occurs in eukaryotes in the lumen of the endoplasmic reticulum.
The addition of the first GlcNAc oligosaccharides to the asparagine residue of a proteinmos an example of N-linked glycosylation.
2. Phosphatidylcholine is synthesized through the CDP-choline pathway which occurs at the cytoplasmic face of the endoplasmic reticulum. Choline entering the cell is immediately phosphorylated by choline kinase, converting choline to phosphocholine.
Phosphocholine is then converted to CDP-choline by the second enzyme in the pathway, CTP:phosphocholine cytidylyltransferase (CT).
The phosphocholine moiety is then added to diacylglycerol in a reaction catalyzed by CDP-choline:1,2-diacylgylcerol cholinephosphotransferase to complete the synthesis of phosphocholine.
3. Lysosomes are the cell organelles which are responsible for the breakdown of proteins as well as other components of the cell. Misfolded proteins are identified and transported to lysosomes through chaperone-mediated autophagy, macroautophagy and endocytosis, where they are then degraded.
4. O-linked glycosylation is a form of glycosylation that occurs in eukaryotes in the Golgi apparatus.
I need this asap please
Answer:
The Third Conclusion.
Explanation:
Hope this helps!
SELECT ALL THAT APPLY.
Chromosomes _____.
□ are tight coils of DNA
□ are carried on genes
□ always occur in pairs
□ can be analyzed in a karyotype
□ carry thousands of genes
Answer:
☑ are tight coils of DNA
☑ always occur in pairs
☑ carry thousands of genes
María and Sean both have brown eyes (a dominant trait), yet their first child has blue eyes (a recessive trait). Using "B" for brown and "r" for blue, fill out the punnett square below to show how that could happen.
Answer:
i put a ss of a punnett square i made:) i hope this helped !!
Explanation:
Name two types of fluids
found
in female reproductive
Organs
Answer:
A female's internal reproductive organs are the vagina, uterus, fallopian tubes, and ovaries. The vagina is a muscular, hollow tube that extends from the vaginal opening to the uterus. Because it has muscular walls, the vagina can expand and contract.
Explanation:
Welcome!
Answer:
The oviduct and uterus provide the environments for the earliest stages of mammalian embryo development. However, little is known about the mechanisms that underlie the formation of oviduct and uterine fluids, or the extent to which the supply of nutrients via these reproductive tract tissues matches the nutrient requirements of early embryos. After reviewing our limited knowledge of these phenomena, a new experimental paradigm is proposed in which the epithelia lining the endosalpinx and endometrium are seen as the final components in a supply line that links maternal diet at one end and embryo uptake of nutrients at the other. When considered in this way, the oviduct and uterine epithelia become, for a few days, potentially the most critical maternal tissues in the establishment of a healthy pregnancy. In fulfilling this 'gatekeeper' role, female reproductive tract fluids have a key role in the 'developmental origins of health and disease' concept.
Explanation i made it because it a weird question
The principle of dominance states that some alleles are dominant and others
are recessive true or false?
Answer:
False, it says that all alleles are dominant :D
Explanation:
Which external stimulus are the ears of a coyote best able to detect?
O A. The motion of a mouse
B. The taste of a rabbit
C. The smell of a flower
D. The sound of a hawk
Coyote is the canine species of North America, which is close member of wolf. The sound of the hawk are best detected by the ears of coyote.
What is stimulus?The event generally evokes a functional reaction in the body.
It can be also defined as the factor that sufficiently evokes a behavioral response in the organism.
The external stimulus is the ears of a coyote best able to detect the sound of a hawk.
Thus, the correct answer is D.
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I need please!!!!!!!!
Answer:
Sure i can help, what do u need help with tho?
Just tell me!!!!
:)
2. The prefix homo- means the same." Explain how this meaning relates to the
definition of homologous chromosomes.
Answer:
It means that the chromosomes shown are the same. For example, WW, ww, SS, ss, GG, etc
Explanation:
Sections of mRNA that are kept and ultimately code for proteins are called:
Answer:
codon?
Explanation:
Which of the following is a product of the photosynthesis reaction? OA. carbon dioxide OB. glucose O C. lactose OD. fructose
Answer:
Glucose
Explanation:
Glucose is the sugar found in plant leaves and is produced by photosynthesis. Photosynthesis requires carbon dioxide. Fructose is found in fruit while lactose is found in milk. Therefore, glucose is the only possible answer. Hope it helps :)
Which of the following statement is NOT true about Eukaryotic
cells?
o They are bigger and more complex than prokaryotes.
o They have membrane bound Organelles
o They do not have a nucleus
o Their DNA forms chromosomes
Answer:
they do not have nucleus
Answer:
they do not have a nucleus
why do you keep using that link
Explanation:
which link???????.....
HISTORICAL DATA QUIZ IN SCIENCE PLZZ HELPP ME BEEN HAVING A ROUGH DAY IF YOU COULD HELP I WOULD REALLY APPRECIATE ITT ASAPPP
Answer:
c. Montana
Explanation:
Although many states have dinosaur sites, so far the states that seem to be the most prolific producers of fossils are Colorado, Utah, Wyoming, and Montana.
All cells contain DNA, which allows them to function and carry out tasks for 1 point
the living things.
*
True
False
Answer:
true
Explanation:
what do these polygons have in common
Explanation:
they all are congruent figures
Answer: A polygon is any shape made up of straight lines that can be drawn on a flat surface, like a piece of paper. Such shapes include squares, rectangles, triangles and pentagons but not circles or any other shape that includes a curve. Understanding shapes is important in mathematics.
Explanation:
All what I just wrote is all that on your assignment they have all that in common.