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Posted in Biology

Which best describes reproduction? Asexual reproduction may lead to an accumulation of mutations in the DNA. Sexual reproduction allows for diploid gametes to combine to increase genetic variation. Asexual reproduction leads to the formation of haploid gametes. Sexual reproduction allows for more gametes to be formed than asexual reproduction does.


The best and most correct answer among the choices provided by the question is the second choice. The statement "Sexual reproduction allows for diploid gametes to combine to increase genetic variation." best describes reproduction. I hope my answers has come to your help. God bless and have a nice day ahead!

Related Questions

Posted in Biology

Which produces the sediments that ultimately lead to soil formation? A. rivers B. plants C. weathering D. rainfall

I think the correct answer from the choices listed above is option C. It is weathering that  produces the sediments that ultimately lead to soil formation. Weathering is the breaking down of rocks, soil, and minerals as well as wood and artificial materials through contact with the Earth's atmosphere, waters, and biological organisms.

Posted in Biology

The organism shown in the drawing usually reproduces through the _________ process called binary fission. A) asexual B) heterosexual C) isosexual D) sexual

The best and most correct answer among the choices provided by the question is the first choice or letter A. The organism shown in the drawing usually reproduces through the asexual process called binary fission. I hope my answers has come to your help. God bless and have a nice day ahead!

Posted in Biology

Why do you think plasmids and bacterial cells are such important tools in genetic engineering?

Plasmids contain extra nucleoid genitic material. By virtue of plasmids bacteria have won their battle againt the miracle drugs like penicillin, streptromycin, asprin etc. Well genitic engineering retrieves their adapted and evolved tendencies to be applied for a long lasting cure.


I hope my answers has come to your help. God bless and have a nice day ahead!

Posted in Biology

A bird stalks, kills, and then eats an insect. Based on its behavior, which pair of ecological terms describes the bird? herbivore, decomposer producer, heterotroph carnivore, consumer autotroph, herbivore

For the answer to the question above, A carnivore is an animal that gets food from killing and eating other animals. Carnivores generally eat herbivores, but can eat omnivores, and occasionally other carnivores. So my answer would be the third choice. Carnivore, Consumer.

Posted in Biology

Which is a potential negative consequence of using genetically engineered medicine? A.Gene markers that are resistant to antibiotics are used, providing the possibility for humans to have increased antibiotic resistance. B.Products that are used to genetically engineer medicine are poisonous. C.Restriction enzymes are used to create the medicine and have been known to cause cancer. D.Medicine that is created this way is less effective than medicine that is created the traditional way.

I think the correct answer from the choices listed above is option A. A potential negative  consequence of using genetically engineered medicine would be that gene markers that are resistant to antibiotics are used, providing the possibility for humans to have increased antibiotic resistance. Hope this answers the question. Have a nice day.

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Posted in Biology

Which of the following best describes the solar radiation absorbed by and radiated from earth? a. Most incoming solar energy is absorbed by the atmosphere. b. Only a small fraction of energy radiating from Earth is from the atmosphere. c. The Earth’s surface is responsible for a small fraction of heat radiation to space. d. Earth’s surface absorbs little of the energy that strikes as solar radiation.

Answer: c. The Earth’s surface is responsible for a small fraction of heat radiation to space.

Explanation:

In later ages the large amount of sun's energy is reflected back by the terrestrial surface back to the space. But now due to the abundance of large concentration of greenhouse gases in the atmosphere is responsible for the absorption of thermal energy from sunlight by these gases causing the atmosphere to be hot. This is the reason of global warming. Now only small fraction of heat is radiated back to the space.        

Posted in Biology

Which evidence did Carl Linnaeus use to classify organisms? A.physical characteristics B.evolutionary history C.physical characteristics and evolutionary history D.physical characteristics, genetics, and evolutionary history

I think the correct answer from the choices listed above is option C. The evidence that Carl Linnaeus used to classify organisms are physical characteristics and evolutionary history. Carolus Linnaeus is the father of taxonomy, which is the system of classifying and naming organisms. Hope this answers the question.

Posted in Biology

Scientists use critical thinking skills throughout the process of research and experimentation. Why is it important for scientists to remain open-minded about the information they come across in their experiments? a. It prevents them from injecting bias into their experiments. b. It allows them to inject bias into their experiments. c. It improves the accuracy of the information. d. It lowers the accuracy of the information.

I think the correct answer from the choices listed above is option A. It is important for scientists to remain open-minded about the information they come across in their experiments in order to prevent them from injecting bias into their experiments. Experiments ans researches should be done in an unbiased way. Hope this answers the question. Have a nice day.

Posted in Biology

What events caused the formation of most islands in the South Pacific?

I think it is volcanic activities that caused the formation of most islands in the South Pacific. This part of the globe is known to contain the pacific ring of fire where most volcanoes can be found. The eruption of these volcanoes might caused the formation mass of soils which turns into islands through time.

Posted in Biology

Which best describes a rhinovirus? A. A tube the comes off a virus B. A virus that causes a common cold C. A protective shell around a virus D. A piece of DNA transferred by a virus

The right option is; B.  

A virus that causes a common cold best describes a rhinovirus.

A rhinovirus is any of many common infectious viruses in humans and the primary cause of the common cold. Rhinoviruses can be transmitted directly from person to person through contaminated objects or through aerosols of respiratory droplets. Other diseases such as ear infections, sore throats and infections of the sinuses may also be caused by rhinoviruses.

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Posted in Biology

What do eukaryotic cells have that prokaryotic cells do not? A.Cell membranes B.DNA C.Cytoplasm D.Membrane-enclosed organelles

Answer:

The answer is D.Membrane-enclosed organelles

Explanation:

Eukaryotic cells have a cytoplasm organized in compartments, with separate or interconnected organelles, limited by biological membranes that have the same nature as the plasma membrane. In the nucleus is the genetic material in the form of chromosomes, where all the necessary information is given so that all the processes both intracellular and outside the cell are carried out.

Posted in Biology

DNA technology in agriculture.

In agriculture DNA technology is used in cross breeding between two plants, maybe

Posted in Biology

A bird stalks, kills, and then eats an insect. Based on its behavior, which pair of ecological terms describes the bird? herbivore, decomposer producer, heterotroph carnivore, consumer autotroph, herbivore

Answer: Carnivore, consumer

Explanation:

The carnivores are the animals that feed on the smaller organism for their energy. They can be as small as a bird and as bid as a lion.

Consumers are the organism that feed on the producers for their energy needs. Here, the bird is omnivores that feed on insect as well as on plants for their energy needs.

A bird feeding on insect is an example of consumer, carnivore.

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Posted in Biology

Describe how a volcano is formed at a Continental Rift. Be sure to include, in your description, what is occurring at the plate boundary.

At a plate boundary, magma slowly pushes up via convection currents between two plates and cools, forming a ridge that gets taller and forms a volcano. As more magma flows to the surface, it cools and makes new layers of crust and pushes the older crust away, therefore moving the plate.

Posted in Biology

DNA is aspiral ladder shaped structure with the sides of the ladder representing which components

DNA is made up of six smaller molecules; a five carbon sugar called deoxyribose, a phosphate molecule, and four different nitrogenous bases (adenine, thymine, cytosine and guanine). The model is known as a double helix because two long strands twist around each other like a "twisted ladder." The rails of the ladder are made of alternating sugar and phosphate molecules. The steps of the ladder are made of two bases joined together.

Posted in Biology

Which scientist formed his ideas about living things by performing observations with out using a microscope? A.Hooke B.malpighi C.van leeuwenhoek D.vesalius

The correct answer is D. Vesalius

Explanation:

Andreas Vesalius was a Flemish scientist and anatomist that lived during the 16th century, considered as the father of modern anatomy. During this life, Vesalius studied anatomy mainly using dissection and observing the tissues, organs, and structures in them, especially those in animals and humans. Also, he used his findings and ideas to create written works that were the base for later studies in anatomy. Besides this, as compound microscopes for studying living organisms had not been created during Vesalius time, he only used regular observations different to other scientists such as Hooke or Malpighi. Thus, it was Vesalius the one that formed his ideas by performing observations without using a microscope.

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Posted in Biology

What describes the inner bark of a woody stem


It produces the new vascular tissues.?

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Posted in Biology

How is good (stratospheric) ozone formed? a. combining an oxygen molecule (O2) an atom of chlorine (Cl) b. combining a single oxygen atom (O) with an oxygen molecule (O2) c. combining two single oxygen atoms d. breaking apart an oxygen molecule

The correct answer is option (b). combining a single oxygen atom (O) with an oxygen molecule (O_{2}).

The molecular formula of the ozone is O_{3}. the combination of the molecular oxygen with the oxygen atom can result in the formation of the ozone molecule.

As the ozone do not have chlorine in its structure, combining oxygen and chlorine cannot form ozone.

Combining two oxygen atom would form an oxygen molecule, not the ozone.

Breaking oxygen molecule would result in formation oxygen atom, not ozone.

Hence, the options (a), (c), and (d) are incorrect.

Posted in Biology

Adaptive melanism describes selection for _______. a. mottled pigmentation b. lighter pigmentation c. darker pigmentation d. more colorful pigmentation

Answer:

Adaptive melanism describes selection for darker pigmentation.

Explanation:

Hereditary changes in melanin production cause the darkening in color of populations of animals as a survival strategy that makes them less conspicuous to predators.

For example the rock pocket mouse has a sandy dorsal pelage and white underbelly, and it inhabits light-colored rocks. In other regions these mice are found on lava flows where they are typically melanic, with dark-colored dorsal hairs and white underbellies. This darker coloration provides protection from avian and mammalian predators.

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