If you looked under a microscope and saw a particle with DNA but no nucleus, you would know the particle was?
(A) a protist
(B) a plant cell
(C) an animal cell
(D) a unicellular bacteria

Final answer:

Fraternal twins are no more similar genetically than are regular, non-twin siblings. Fraternal twins have the same level of genetic similarity as non-twin siblings because they come from different eggs fertilized by different sperm. Their similarity in IQ likely stems from similar environmental treatments rather than genetics.

Explanation:

Fraternal twins are no more similar genetically than are regular, non-twin siblings. Fraternal twins develop from two different eggs that are fertilized by different sperm, meaning their genetic material varies the same as in non-twin siblings. Although fraternal twins may have more similar IQs than do nontwin siblings, this similarity in IQ is likely due to the fact that they are treated more similarly than are siblings in terms of environmental factors, rather than having more genetic similarity.

Answer:

A) Phytoplankton

Explanation:

All organisms need energy which they derive by naturally feeding on one another in a series of chain called FOOD CHAIN. The food chain can form a more complex interrelated series called FOOD WEB. All food chains and webs starts with a set of unique organisms called PRODUCERS.

Producers are autotophs that produce their own food via the process of photosynthesis. They are the only set of organisms that have the ability to tap the energy from the sun, which then flows in the food chain as organisms feed on one another.

Phytoplanktons are aquatic producers, hence, they photosynthesize in water. The food chain will be immediately affected if the phytoplanktons (producers) are removed from the food web because there will be no organism to start the energy flow.

Embryonic stem cell research requires the use of human embryos.

In the taxonomic classification system, the correct order from most inclusive to most specific is: Domain, Kingdom, Phylum/Division, Class, Order, Family, Genus, and Species.

To order the given taxa from the most inclusive (largest) to the most specific (smallest), we need to understand the taxonomic classification system. This system, established by Carl Linnaeus, organizes living organisms into hierarchical categories. Starting from the broadest category, the correct order is as follows:

Note that in the original list, Phyla/Division is listed as the largest, which is incorrect. In the correct order, the Domain is the largest category, and Species is the most specific.

the answer is B. it involves random segregation of the homologous chromosomes to each daughter cell

Cell is like a factory because Cells and factories are analogous because they operate in a methodical manner, with various parts carrying out specific functions to achieve a larger goal. For example, factories produce goods using blueprints, while cells carry out functions like protein synthesis based on DNA instructions

Cells are often compared to factories due to their similar functional structures and operations. For instance, a factory has different departments that specialize in different functions, in the same way, a cell has different organelles each performing a specific role to maintain the cell's overall function, much like a factory's assembly line.

Each cell contains genetic instructions in the DNA much like the blueprints used in a factory. The Proteins, which are crucial for most of the cell's functions, are produced in the ribosomes, similar to a commodity being produced in a factory. This analogy is further highlighted by the cell cycle, where cells grow and divide to produce more cells in a controlled and systematic manner similar to a production line in a factory.

As both cells and factories operate in a systematic and controlled manner, with several small components working together to achieve a larger goal — survival in the case of cells, and production in the case of factories.

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??? where id a? not enough answers

Answer:

The 3 types of eroding action by water are as follows-

(1) Sliding and rolling- The rock particles or sediments are eroded along an inclined plane either by sliding or rolling down. The coarser particles are generally transported from one place to another by this process and these sediments move at a much slower rate.

(2) Saltation- It is a process by which the sediments are carried from one place to another in a series of jumps. These are comparatively less coarser or medium grained sediments.

(3) Suspension- It is the process by which the sediments are transported from one place to another by suspension, which means that the sediments are dissolve in the solution. These are the finer particles.

Answer: Energy is released

Explanation:

Organic molecules has the ability to decompose and release energy in the ecosystem. Energy can neither be created nor be destroyed, it can only be converted from one form to another form.

The organic molecules have energy stored in them, this energy is released when the organic matter is decomposed, it gets into the form of nutrients in soil.

This nutrient is used by plants and this is how the organic molecules transform energy from one form to another.

The correct answer is A metamorphosis and B lungs.

Amphibians develop special adaptation by which they are compatible of living both on land and in water.

The animals that live on land needs lungs to respire and the animals that live in water needs gills to respire.

The amphibians live in water in the starting days of their life as they have gills later they undergo through metamorphosis in which there is a development of lungs to live on land.

Answer:

Possible Genotypes are Ww and ww

Percentage of genotype Ww - [tex]50[/tex]%

Percentage of genotype ww - [tex]50[/tex]%

Possible phenotypes are Wrinkled and smooth

Percentage of Wrinkled  phenotype  - [tex]50[/tex]%

Percentage of smooth phenotype - [tex]50[/tex]%

Explanation:

Given -

Parent I  is heterozygous for the dominant trait of wrinkled seeds. Thus, its genotype would be "Ww"

Parent II is homozygous for the recessive trait of smooth seeds. Thus, its genotype would be "ww"

The punnet square representing the cross between "Ww" and "ww" is as follows -

W w

w Ww ww

w Ww ww

Possible Genotypes are Ww and ww

Percentage of genotype Ww - [tex]50[/tex]%

Percentage of genotype ww - [tex]50[/tex]%

Possible phenotypes are Wrinkled and smooth

Percentage of Wrinkled  phenotype  - [tex]50[/tex]%

Percentage of smooth phenotype - [tex]50[/tex]%

Answer:

The correct answer is the skill of memorization.

Explanation:

The memorization of the information assists the scientist in recalling all the theories and the facts that are associated with the experiments. In a situation, when the scientist remembers all the things, the assessing of the data would become easier, as he or she can associate the information without considering various sources. Thus, memorization would play an essential part in forming connections through the data.

In this exercise we have to use the knowledge of isotopes to determine how many neutrals it has, as well as:

This isotope have 10 neutrons.

These are atoms of the same chemical element that have the same number of protons (same atomic number), but differ by mass number (A = protons + neutrons). Their mass number is different because the number of neutrons in the nucleus is different.

Then we can write as:

Mass number - Atomic number = Number of neutrons

Putting the given values ​​in the statement we have:

[tex]18-8=10[/tex]

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Answer:

mechanical weathering can produce smaller pieces of rock that have more surface area for chemical weathering to work on.

Explanation:

As mechanical weathering breakdown the rocks into smaller pieces, mechanically, the chemical weathering on the rocks also increases. This is because smaller pieces of the rock have a larger surface area to volume ration on which chemical weathering can act upon. This even further increases the weathering of the rock.