Answer:
C. A prokaryote
Explanation:
A prokaryote is an organism that consists of a single cell that does not have a nucleus or membrane-bound organelles.
A prokaryote is an organism whose cells do not have a membrane-bound nucleus. Therefore, option (C) is correct.
What is a prokaryote cell?
Prokaryotes are unicellular organisms, such as bacteria and archaea, which lack many of the organelles found in eukaryotic cells, including a nucleus. In prokaryotic cells, the genetic material is contained in a single circular chromosome located in the cytoplasm, which is not separated from the rest of the cell by a nuclear membrane.
The lack of a nucleus is one of the defining characteristics of prokaryotic cells, which are distinct from eukaryotic cells found in animals, plants, fungi, and protists, which all have a nucleus and other membrane-bound organelles.
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Chromosomes from each homologous pair are randomly sorted into daughter cells in a process called
amount of
This gives them a greater
A. Meiosis 1. divisions
B. crossing over, chromosomes
C. Independent assortment, genetic diversity
D. DNA sorting, accuracy
Reset Selection
Answer: A. Meiosis 1. division
Explanation:
Meiosis is a division process in reproducing sex cells
Chromosomes from each homologous pair are randomly sorted into daughter cells. This give them a greater meiosis 1. Divisions. The correct option is A.
What are chromosomes?Chromosomes are long thread like structure, they are present in pairs and the pairs are attached to each other by centromere. They contain genes.
The meiosis is the process of producing germ cells. When sperm and egg fuse, the chromosomes from each parent are taken into the daughter cell.
Thus, the correct option is A. Meiosis 1. Divisions.
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Which correctly describes crossing over?
Answer:
when to genetic material is exchanged between two different chromosome or between different regions within the same chromosome
Explanation:
offspring which posses combination of traits that differ form those found in either of their parents
Answer:
the process whereby nonsister chromatids exchange genetic material
Explanation:
A
Which of these biomes tends to receive the most rainfall?
O A. Boreal forest
O B. Rain forest
O C. Tundra
O D. Taiga
Answer:
O B. Rain forest
Explanation:
What is the source of energy that drives photosynthesis?
(BRAINIEST FOR QUICKEST) Describe two safety precautions you should take when handling a flammable liquid.
Answer:
goggles and gloves
Explanation:
In the fossil record, there is no evidence of anything living on land before plants. Why are plants necessary before more complicated animals can evolve?
A. Plants were not needed.
B. Plants were needed to produce Carbon dioxide.
C. Plants were needed to change the soil content.
D. Plants were needed to produce oxygen.
Answer:
maybe option D is correct
Plants are necessary before more complicated animals can evolve because plants were needed to produce oxygen. The correct option is D.
What is the fossil record?The fossil record is the preserved remnants of plants and animals that are found in the layers of the earth's crust. They give information about organisms present in old times.
Plants give oxygen, food, and shelter to the organism, so it is necessary for surviving of organisms.
Thus, the correct option is D. Plants were needed to produce oxygen.
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Two fruit flies that are heterozygous for body color and eye color are crossed. Brown body color is dominant to black body color. Red eye color is dominant to brown eye color. Use the Punnett square to determine the ratio of offspring with: Brown body and red eyes Brown body and brown eyes : Black body and red eyes : Black body and brown eye.
The ratio of offspring that possess the following phenotype is as follows:
Brown body and red eyes: 9Brown body and brown eyes: 3Black body and red eyes : 3Black body and brown eye: 1This question involves two genes coding for body color and eye color in fruit flies respectively. The brown body color allele (B) is dominant over the black body color allele (b) in the first gene while the red eye color allele (R) is dominant over the brown eye color allele (r) in the second gene. In a dihybrid cross between two fruit flies that are heterozygous for both genes i.e. BbRr × BbRr, the allelic combinations of gametes produced by each parent fruit fly will be:BbRr- BR, Br, bR and brUsing these gametes to complete a punnet square (see attached image), 16 possible offsprings will be produced in a ratio 9:3:3:1 where;Brown body and red eyes (B_R_) : 9Brown body and brown eyes (B_rr) : 3 Black body and red eyes (bbR_) : 3Black body and brown eye (BbRr) : 1Hence, the ratio of the offsprings will be 9:3:3:1Learn more about punnet square at: https://brainly.com/question/14504341?referrer=searchResults
Answer:
9, 16, 3, 16, 3, 16, 1, 16
Explanation:
Brown body and red eyes ⇒ 9 ⇒ 16
Brown body and brown eyes ⇒ 3 ⇒ 16
Black body and red eyes ⇒ 3 ⇒ 16
Black body and brown eyes ⇒ 1 ⇒ 16
Which of the these do plants NOT obtain using Active transport?
A. Phosphorus
B. Carbon dioxide
C. Potassium
D. Nitrogen
Active transport is the system that requires energy to transport the macro and micronutrients. Carbon dioxide is not transported through active transport. Thus, option B is correct.
What is active transport?Active transport is the mechanism to transport the molecules and the ions from regions of low concentration to higher concentration with the help of the energy as the movement are opposite the gradient.
The macronutrients like phosphorus, nitrogen, and potassium are transported with the help of the transporter molecules across the membrane and utilize ATP. While carbon dioxide diffuses directly and requires no energy.
Therefore, carbon dioxide is transported by passive transport.
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Write a paragraph of 150 words on the subject ‘different ways to protect ozone layer and prevent emission of hazardous gases’ for hindi
Answer:
There are a few different steps we can take to protect the ozone layer. As you know, the ozone layer is the layer that protects us from the sun’s powerful UV rays and it also protects us from other harmful things roaming in space. The first thing we can do to protect the ozone layer is reduce the use of natural gases. The gases produced from the natural gases had torn holes in the ozone layer. A way to prevent emissions of hazardous gases Is to switch to renewable energy. Renewable energy is not only easier to access and replace, solar panels and wind energy dont give off harsh and hazardous gases that mess with the ozone layer and the climate.
Explanation:
I don’t know how Many words that is. You can add to it if you feel the need to. I don’t know Hindi, maybe you can translate it on google?
Read the passage: Genetically Engineered Corn. Then 1. Explain what Bt corn is and how it is made. 2. Describe the benefits of Bt corn. 3. Describe the risks of Bt corn. 4. Make an argument for or against the use of Bt corn and provide support for your position.
1. Bt maize is a genetically modified maize. It is produced through biochemical techniques and with the use of biotechnology that allows genes of Bacillus thuringiensis bacteria to be introduced in the DNA of corn. These genes allow Bt maize plants to produce a toxic protein specific to certain groups of insects.
2. With the production of this protein, Bt corn becomes immune to attack by these insects. As a result, the use of pesticides in the corn crop is reduced, which makes production healthier and avoids side effects on the soil. In addition, it prevents the production of corn from falling due to the attack of insects.
3. Among the disadvantages, we can say that Bt maize does not control all the pests that attack maize, only a few, which allows maize to be attacked. It can also trigger evolution in pest species that are immune, creating a toxin-resistant species. Finally, it can create contamination in wild maize crops (that is, those that have not been genetically modified), ending diversity.
4. I believe that the use of Bt corn is favorable. This is because it allows a greater production of food to meet our need and increasingly intense demand for food. However, it is necessary to affirm that the use of this corn needs regulation and inspection, mainly in the big industries that can harm the small producer.
Answer:
3. Among the disadvantages, we can say that Bt maize does not control all the pests that attack maize, only a few, which allows maize to be attacked. It can also trigger evolution in pest species that are immune, creating a toxin-resistant species. Finally, it can create contamination in wild maize crops (that is, those that have not been genetically modified), ending diversity.
Explanation:
What property of DNA makes it possible for a probe to find a single-stranded
DNA target gene?
A. Probes are dominant over genes.
B. Chromosomes come in pairs.
C. A DNA molecule has two paired strands.
D. Alleles are in pairs.
Answer:
A DNA molecule has two paired strands.
organism must go through mitosis to build new tissues.
Part C
Based on your model, do you think frogs reproduce sexually or asexually? What are the benefits and drawbacks to this
form of reproduction?
Answer:
Frogs reproducesexually and when organisisms reproduce sexually there are benefits which include:
produces genetic variation in the offspring.
the species can adapt to new environments due to variation, which gives them a survival advantage.
a disease is less likely to affect all the individuals in a population.
A disadvantage is that sexual reproduction takes longer than asexual reproduction. A mate must be found, the egg must be fertilised by sperm, and then the offspring develop. The benefit of introducing genetic variation into the species , however, outweighs this disadvantage.
Answer:
Frogs reproduce sexually: they require sperm from a male and an egg from a female to produce offspring. This type of reproduction allows for greater genetic variation. But organisms that sexually reproduce need to reach sexual maturity before they can reproduce. They also use energy to find a mate.
In what ways are fats and steroids similar to each other, and in what ways are they different? Fats and steroids are both hydrophilic lipids, but fats help with metabolism while steroids provide insulation. Fats and steroids are both hydrophobic lipids, but fats serve as energy while steroids serve as hormones. Steroids contain a four-carbon ring while fats consist of glycerol and fatty acids, but both are proteins. Steroids help with transport while fats store energy, but both are proteins.
Answer:
Fats and steroids are similar because fats & steroids are both lipids & are both hydrophobic. They are different because fats store energy for molecules & steroids function as a messenger around the cell membrane.
Explanation:
Which two large landmasses formed when Pangaea first started to separate?
Africa and Europe
O Europe and Laurasia
Gondwanaland and North America
Laurasia and Gondwanaland
Laurasia and Gondwanaland were formed when Pangaea first started to separate.
What are landma-sses?A landmass is a very large area of land such as a conti-nent.
Landmasses include:
super continents
continents
Is-lands
There exist four major continuous landmasses on Earth:
Americas,
Ant-arctica, and Australia.
Afr-o - Eurasia,
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farm animals can be classified based on what
Answer:
SEE BELOW
Explanation:
Farm animals are classified based on the following: Size, Habitat, Mammals, Non-mammal, and their types of stomach.
What is the function of the nucleus?
O A. To store the cell's genetic material
OB. To combine amino acids to make proteins
O C. To control what enters and leaves the cell
D. To provide the cell with energy
Answer:
A. To store the cell's genetic material
Explanation:
The nucleus stores DNA which is the genetic material.
A bacterial or archaeal species is best defined as _____ the most fully characterized and most representative member of a taxon a collection of strains that share many stable properties and differ significantly from other groups of strains a collection of strains that have distinctive immunological reactivity the descendants of a single, pure microbial culture that have been maintained by careful aseptic technique
Answer:“a monophyletic and genomically coherent cluster of individual organisms that show a high degree of overall similarity with respect to many independent characteristics
Explanation:
Explique la importancia e incidencia del buen funcionamiento de las hormonas en el cuerpo del ser humano y que consecuencias puede tener si hay alteración en el nivel hormonal
Answer:
Las hormonas activan vías de señalización celular, con lo cual regulando el crecimiento, metabolismo y reproducción del organismo
Explanation:
Las hormonas son moléculas mensajeras que circulan a través del torrente sanguíneo para llevar a cabo diferentes funciones. Estas moléculas se unen a receptores específicos presentes en la superficie de las células con la finalidad de controlar diferentes aspectos de su funcionamiento. Las hormonas son principalmente producidas por glándulas endocrinas pero también pueden ser secretadas por células intersticiales y epiteliales.
Las hormonas se dividen cinco clases principales:
a- pequeños neurotransmisores implicados en el funcionamiento del sistema nervioso (gonadotropina, somatostatina)
b- derivados de aminoácidos que también tienen funciones neuromotoras (dopamina, catecolamina)
c- proteínicas asociadas a funciones metabólicas y del desarrollo (insulina)
d- hormonas esteroideas derivadas de colesterol (estrógenos) que regulan el desarrollo de las características reproductivas y metabólicas e inmunológicas
e- hormonas derivadas de vitaminas liposolubles A y D (retinoides) vinculados a mecanismos que previenen el envejecimiento celular
The burrowing owl is found in dry, open areas such as grasslands, prairies, savannas, deserts, farmlands, golf courses, and other urban areas throughout most of western United States and Florida, Central America, and most of South America. It makes its home in burrows of other animals and primarily eats insects and small rodents. As humans build more cities, nearby burrowing owl habitats change due to destruction of burrows and loss of prey. Which is the least likely outcome of the habitat changes that are described?
Answer:
its population would increase
Explanation:
it says the least likely outcome which is the population increasing
Answer:
C
Explanation:
Which correctly lists three properties that are used to identify minerals? luster, weight, streak magnetism, size, weight size, weight, luster streak, luster, magnetism
Answer:
D.
Explanation:
just took the test
Answer:
D
Explanation:
No explanation .
Consider the following statements:
1) Glycolysis involves a partial breakdown of glucose to produce two molecules of
pyruvate
31) Glycolytic reactions produce a net total of two ATP molecules
111) Glycolysis occurs in the mitochondrial matrix of eukaryotic cells
IV) Glycolysis produces 2 NADH molecules
V) Glycolysis cannot occur without oxygen
Which of the above statements is/are correct?
A) I only
B) I and II
C) I and III
D) I, II, and IV
E) I, II, IV, and V
Answer:
The answer is option D.
I, II, and IVHope this helps you
A person in a dark room looking through a window can clearly see a person outside in the day light . But a person outside cannot see the person inside
Explanation:
The explanation for this is that the space outside is illuminated with light from the sun. The person inside has either a lesser or no illumination at all. The dark inside room appears dark, and darkens the surface of the window facing inside, making it act like the silvered surface of a mirror. When the outside observer looks at the window, the window acts as a mirror, reflecting the light from the sun onto the eyes of the outside observer. For the inside observer, some of the illumination from outside finds its way inside, since the outside window surface is well lit, carrying with it the sensation of vision onto the eyes of the inside observer.
help
why is using methylene blue as a stain necessary???
which food contains the material needed to build muscle, but does not contain the macromolecules that give quick energy? A. bread B. steak C. broccoli D. potatoes
Which of these is a producer? moth mushroom fern cheetah
Answer:
dear
from the above options fern is a producer
Answer:
ferns!
Explanation:
what main carbohydrate do grapes have
the main carbohydrate in grapes is sucrose
Most primates are arboreal, and living in this environmental context poses great challenges. Describe at least one specific problem or challenge a primate might encounter in a forested environment (consider things like movement, finding/accessing food, and finding mates).
Answer:
The main problem will be "habitat distraction".
Explanation:
The primary idea to all the combustion as well as cleaning up of boreal rainforests, which also generate excrete least 20% of global emissions that contributes to having some changed climate, and even the scavenging of animals for fruit and vegetables as well as illegal trade in the life of wild animals. For decades, we always expressed concerns more about the danger of primates, however now we just have strong evidence to demonstrate that the problem is much more serious than anyone expected.What is the role of the molecule pictured below?
Molecule with 3 phosphate groups bonded to an adenosine molecule
Answer:
ATP. Adenosine 5'-triphosphate, or ATP, is the principal molecule for storing and transferring energy in cells. ... These three phosphate groups are linked to one another by two high-energy bonds called phosphoanhydride bonds.
Answer:
Explanation:
ATP synthase
The energy released by the electrical potential across the membrane causes an enzyme, known as ATP synthase, to become attached to ADP. ATP synthase is a huge molecular complex and its function is to catalyze the addition of a third phosphorous group to form ATP.
Which correctly lists the three plates that border the
Indo-Australian Plate?
O Pacific, Eurasian, and African
O African, North American, and South American
O Eurasian, African, and South American
O North American, Pacific, and African
Answer:
A- Pacific, Eurasian, and African.
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Pacific, Eurasian, and African are the three plates that border the Indo-Australian Plate.
What plates border with the Indo-Australian Plate?The Indo-Australian Plate consists of the majority of the Indian Ocean. It borders with the Eurasian Plate in the northside, the Antarctic Plate in the southside and the Pacific Plate in the east.
So we can conclude that Pacific, Eurasian, and African are the three plates that border the Indo-Australian Plate.
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Foliated metamorphic rocks have mineral grains that are randomly placed. true or false
Answer:
True
Explanation:
Metamorphic rocks are foliated if their mineral grains are arranged randomly.
Answer:
False
Explanation:
Foliated means to have grains placed in parallel layers, while non foliated rocks mean the grains are placed randomly