magnetite is________that acts like a magnet
A.a compass
B.an electric circuit
C.a mineral
D.a planet
Answer:
C. a mineral
Explanation:
magnetite is a naturally-occuring mineral found in the lithosphere. Like other metals (such as iron), it has electromagnetic properties.
The chemical colchicine is used in the production of karyotypes. Colchicine prevents spindle fibers from forming during the cell cycle. What is a result of preventing spindle fibers from forming? Answer
A The cell cycle skips G1 phase
B Mitotic division is skipped, and the cell cycle proceeds to cytokinesis.
C Mitotic division stops in metaphase and cannot proceed to anaphase.
D The cell cycle skips S phase and proceeds to G2 phase.
Answer: the correct answer is C
Explanation:
Preventing the formation of spindle fibers makes the mitotic division stop in metaphase, and thus fail to proceed to anaphase.
• Colchicine prevents the polymerization of the microtubule, and thus, prevents the arrangement of the mitotic spindle, which shows the prevalence of another checkpoint in the cell cycle.
• As a result, the activity of the maturation promoting factor remains high, the chromosomes stay condensed, and the nuclear envelope fails to redevelop.
• A toxic effect is exerted on the living cells by the colchicine, which usually results in the arrest of the process of mitosis at an eventual stage, generally the metaphase, with the generation of unusual and bizarre nuclear configurations, and thus, resulting in the death of the cell.
Thus, the correct answer is option C.
To know more about:
https://brainly.com/question/1953842
Why are DNA fingerprints are more reliable than hand fingerprints in solving crimes.
Answer:
Fingerprints are still the most cost-effective and reliable way to identify people: ... No two fingerprints have ever been identical in the many millions of comparisons. Fingerprints solve ten times more unknown-suspect cases than DNA fingerprinting.
Explanation:
HELP MEEE,!!!!! PLEASE
Answer:
C
Explanation:
spindle fibers are important during metaphase. division stops without them.
Match the mechanism to the most likely outcome for each column. One mechanism may be chosen more than once.
PUNTOskkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkj
The greatest amount of genetic variation is produced in offspring that reproduce -
A. sexually through fission B. asexually through budding C. sexually through meiosis D. asexually through mitosis
In meiosis, the greatest amount of genetic variation is produced in offspring that reproduce sexually, hence option C is correct.
How do organisms reproduce sexually through meiosis?Because the environment is continually changing, sexual reproduction often has an advantage over asexual reproduction.
Increased phenotypic variation, or the physical variety of the organisms, results from higher genetic diversity.
Each gamete has a unique DNA set because of recombination and independent assortment during meiosis. The resultant zygote has a special set of genes as a result.
Genetic variety can be increased by new genes and alleles being created as a result of gene duplication, mutation, or other events.
Therefore, it is possible for novel gene combinations to arise during sexual reproduction.
Learn more about meiosis, here:
https://brainly.com/question/7002092
#SPJ6
What's cycle works together with the carbon cycle
Answer: The carbon cycle is nature's way of reusing carbon atoms, which travel from the atmosphere into organisms in the Earth and then back into the atmosphere over and over again. Most carbon is stored in rocks and sediments, while the rest is stored in the ocean, atmosphere, and living organisms
Explanation:
Pls help! Explain why blood pressure must decrease in the arterioles before entering the capillaries ahhhhh
this is because the blood flow slow through the capillaries to allow gaseous exchange. Plus the pressure is higher in capillaries because the diameter of the capillaries is smaller than arterioles
A group of individuals of the same species living together is called a:
Answer:
Population
Explanation:
PLEASE HELP! Giving extra points & will mark as Brainliest!
1.Looking at the map of epicenters shown above, what do you notice about the location of most of the worlds earthquakes? What patterns do you notice?
2. Explain the pattern of the earthquake epicenters shown on the map. Why do most of the world’s earthquakes occur in these areas?
Answer:
the answer is jesus... the answer to everything is jesus
Explanation:
he is the son of god and died for our sins
Which two fields of study provide the core information that is used to classify organisms?
how many codons specify 5 amino acids?
Answer:
20, Im not completely sure tho
Explanation:
A train travels a distance of 1,200 kilometers in 20 hours. The speed is _________ per __________.
Which monomer – polymer pair below is mismatched? *
2 points
amino acid-protein
glucose-glycogen
glucose-starch
amino acids-nucleotide
Answer:
glucose-glycogen
Explanation:
Because extra glucose is converted into glycogen and stored for when it is needed. It is not a polymer pair.
If today is Monday and it is a 1st quarter moon, what phase will it be on Thursday
Answer:
Saturday
Explanation:
because
List at least five facts about brain health and protection.
Answer:
always use protection but of no one lisens to that saying.
1.)Weave heart-pumping exercise into your daily routine.
2.)Take care of any medical problems.
3.)Get enough sleep, and get help for existing sleep problems.
4.)Review the medications you’re taking with your doctor.
5.)Stay socially engaged.
Why do we not use a Punnett Square to determine the offspring for asexual reproduction? Is that form of reproduction diverse? Explain your answer.
Answer: There isn’t another organism to cross with
Explanation:
In asexual reproduction there is only one parent so all the genes come from one person.
Which of Earth's layers is the thinnest?
OA.
outer core
ОВ.
crust
OC.
mantle
OD.
inner core
The loss of most vegetation is a prominelt cause of desertification. (Tor F)
PLEASE HELP
Answer: true
Explanation:
Standing on a diving board kinetic energy or potential energy
while standing on the diving board you'd have potential energy. after jumping you'd have kinetic energy.
Are those right guys?
How do the terms Amino Acids, Proteins, Lipids, Fatty Acids, Glycerol , Monosaccharide, and nucleotide relate to each other
Answer:
Amino acids are simple units of Protein
Fatty acids are simple units of lipids
Explanation:
. Which statement best expresses the central idea in the article?
A. Scientists have discovered a way to prevent genetic defects in babies, but some believe genetic development should be left to nature
B. Scientists have discovered a way to prevent genetic defects in babies, but some worry that the process could be used for great economic gain
C. Scientists have discovered a way to prevent genetic defects in babies, but the method is against many families’ religions
D. Scientists have discovered a way to prevent genetic defects in babies, but the process is still very risky
Answer:
I believe the Answer is D
Explanation:
Mainly because b, c, arent very logical and A is also a decent choice but i believe d is the answer
Each chromosome contains thousands of genes. Each gene contains the
information required to build specific……..
needed in an organism.
A. Carbohydrates
B. Lipids
C. Proteins
Name THREE products in the food industry that are produced by biotechnology
what's one thing u wonder about ocean exploration
how cutting down trees contribute to global warming??
Answer:
Carbon is stored in the plant, which helps a plant to grow. But when trees are cut down and burned and or allowed to rot, their basically storing carbon dioxide, which then gets released into the air ... again known as carbon dioxide. In conclusion this is how deforestation or cutting down trees and including forests can lead to and or contribute to global warming.
I will mark someone brainliest! Please help!!
Answer:
The first one
Explanation:
Mark me brainliest please
Mom is a dominant purebred for big feet. Dad is a hybrid for foot size. What are their chances of big feet? Or little feet? _ out of _ or _ %
Answer:
Parent´s chances:
Mom´s chances of giving their children the big feet allele are 2 out of 2, or 100%Mom´s chances of giving their children the small feet allele are 0 out of 2, or 0%Dad´s chances of giving their children the big feet allele are 1 out of 2, or 50%.Dad´s chances of giving their children the small feet allele are 1 out of 2, or 50%Offspring chances:
The offspring have 4 out of 4 or 100% of probability of having big feet. And 0 over 4 or 0% of probabilities of having short feet.Explanation:
Due to technical problems, you will find the complete answer and explanation in the attached file
When an organism has two alleles at a particular locus that are different, then the organism is called what?
Purebred
Dominant
Heterozygous
Recessive
Answer:
Heterozygous
Explanation: