A scout on a hike becomes lost. He does not have a compass, but he does have a small needle, a magnet, and some water. He magnetizes the needle and then gently places it on the surface of the water, where it points to the north. What property of the water makes it possible for the needle to lie on the surface of the water?
A. viscosity
B. definite volume
C. surface tension
D. boiling point

Answer:

Their distance from the sun

Explanation:

Temperatures on gas giants are low because they are at a great distance from the sun and do not endure as much energy as terrestrial planets. Besides, of all the gas giants, Jupiter is closest to the sun; in contrast to Neptune, which is the furthest from the sun and has the longest period of revolution.  

The molecular conformation that facilitates crossing over is: tetrad.

Homologous chromosomes form tetrads composed of four sister chromatids. These chromatids are then able to cross over.

This happens during the stage of Meiosis I - in Meiosis II the tetrad has already split into pairs of sister chromatids.

The tetrad structure of homologous chromosomes facilitates crossing over during meiosis, promoting genetic diversity.

The molecular conformation of homologous chromosomes that facilitates crossing over is the tetrad structure. During the Prophase I of meiosis, homologous chromosomes pair up and form a structure known as a tetrad, which consists of four chromatids. The formation of tetrads is crucial for crossing over as it provides a physical basis for the chromosome to exchange genetic material. This process of crossing over results in recombination of genetic material, enhancing genetic diversity.

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Answer:

The greenhouse effect is a natural process that occurs due to the accumulation of greenhouse gases such as carbon dioxide, ozone, methane in the earth's surface.

Explanation:

The greenhouse effect is a phenomenon that occurs when the greenhouse gases(carbon dioxide, methane) in the Earth's surface trap heat from the sun and this process makes the Earth's surface warmer.

The greenhouse effect is caused due to burning of fossil fuels and cutting of trees or forests, which increase the concentration of methane, carbon dioxide(greenhouse gases).

The greenhouse effect is a natural mechanism that raises the temperature of the Earth's surface. It occurs when specific gases in the atmosphere capture solar radiation.

The greenhouse gases allow sunlight to enter the atmosphere while trapping heat reflected from the Earth's surface. This trapped heat raises the temperature of the Earth's surface and lower atmosphere.

Its effect is necessary for life on Earth to exist. The average temperature on Earth would be around -18 degrees Celsius (-0.4 degrees Fahrenheit) if the greenhouse effect did not exist.

Learn more about greenhouse effect, here:

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Abiotic factors (non-living things) in a tropical rainforest include temperature, humidity, soil composition, air, and many others. A few of the many biotic factors (living things) in that forest are toucans, frogs, snakes, and anteaters. All of the biotic factors are dependent upon the abiotic factors

Answer:

Plants

Explanation:

Abiotic factors in the rainforest are any living thing, including rainforest animals, plants, insects, fungi, and microorganisms. These aren't to be confused with abiotic factors, which are non-living things.

decomposers The principal forms of decomposer are bacteria and fungi.

Decomposers act as recyclers in many biogeochemical cycles. Decomposition occurs when a compound is broken down into simpler compounds or into its constituent elements. This is achieved primarily by decomposers, organisms that obtain their energy from the chemical breakdown of dead organisms as well as from animal and plant waste products.

Final answer:

The recycling of nitrogen through Earth's ecosystem heavily relies on decomposers, as they break down organic matter and return nitrogen to the soil in a usable form for plants.

Explanation:

The recycling of nitrogen through Earth's spheres relies heavily on a specific type of organism. These organisms are decomposers. Decomposers break down organic matter, which includes the bodies and wastes of organisms, recycling the nitrogen contained within them back into the ecosystem in a form that plants can use. As part of the nitrogen cycle, these decomposers play a crucial role, alongside other processes such as nitrogen fixation by bacteria and lightning, to convert nitrogen into a usable form for living organisms.

The brown paper test for lipids is positive when food is placed on the paper and a spot forms that will allow light to pass through it. Which food would give the strongest positive test for lipids? The answer is The brown paper test for lipids is positive when food is placed on the paper and a spot forms that will allow light to pass through it. Which food would give the strongest positive test for lipids? The answer is Potato chips

A food high in fat, such as butter or olive oil, would yield the strongest positive test for lipids because they are high in lipid content. A solution like the Sudan III stain can be used to visually identify the presence of lipids in a food source.

A food that would give the strongest positive test for lipids would be one that is high in fat. For instance, butter or olive oil would yield a strong positive result because they are both very high in lipids.

In a lab, this can be tested using a solution such as the Sudan III stain, which binds to fats and can be visually seen if fat is present. If the solution turns a red color, that indicates the presence of lipids. Given the high lipid content in butter or olive oil, these would react strongly to the solution, indicating a high amount of lipids.

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One positive choice someone can make to help their health would be to exercise if you are overweight. One negative choice someone can make that can worsen their health would be drinking any alcohol. Exercising when overweight can help your health by decreasing chances of heart diseases and drinking any alcohol to an excessive extent can harm your liver which can lead to death or a journey of pain and complications.

POSITIVE: a positive choice would include is if someone is gaining so much weight, they can start a diet or an exercise plan. Due to this they will control their weight and won't get diabetes(from junk food sugar candy etc.)

NEGATIVE: a negative choice is to smoke which would cause lung problems. People smoke because they have an addiction, and they just can't stop. later on you can die due lung issues.

Answer: Protist

Explanation:

Answer:

Protist is the answer

Explanation:

Scientists did not know how traits were inherited.

Answer: scientist didn’t know how traits were inherited

Explanation: a p e x

Mantle convection is the slow creeping motion of Earth's solid silicate mantle caused by convection currents carrying heat from the interior to the planet's surface. ... This hot added material cools down by conduction and convection of heat.

Convection is the type of heat transfer that causes material in the Earth's interior to move, affecting the movement of tectonic plates.

The type of heat transfer that causes material in the earth's interior to move is known as convection. This process involves convection movement within a gas or liquid, driven by the tendency of hotter, and therefore less dense material, to rise while colder, denser material sinks due to gravity. This results in a transfer of heat. In the Earth's mantle, this movement forms convection cells that drive the movement of tectonic plates. Hotter and less dense mantle material heated above the core rises towards the surface, cools, and then sinks back down at places such as deep sea trenches, completing a convection cell and perpetuating the cycle of heat transfer.

The effect of geographic isolation is that the two populations are subjected to different selection (pressures) and geographic conditions. The conditions in the two areas, if different, will produce different alleles in that species and will be selected for, where genetic differences will gradually accumulate between the two different populations.

In time, enough genetic differences will occur so that the two populations will no longer interbreed. Then, by definition, they have become different species.

B. Chloroplast

A chloroplast is an organelle found in the cells of green plants, it basically turns the plants green, animals do not have chloroplasts.

Answer:

chloroplasts

Explanation:

Answer:

A.

Explanation:

Im a few years late but an answer is an answer.

The rest is eliminated as heat.

Answer:

D

Explanation:

Eliminated as heat

fertilization is the process of male sperm cell and female egg cell joining together to form a zygote

Primary succession is one of two types of biological and ecological succession of plant life, occurring in an environment in which new substrate devoid of vegetation and other organisms usually lacking soil, such as a lava flow or area left from retreated glacier, is deposited.

Answer: a new volcanic rock

Explanation: Primary succession is a a type of ecological succession in which change in vegetation which occurs on previously unvegetated region. Examples of where primary succession may take place include the newly developed islands, new volcanic rock, and on land formed from glacial retreats.

Answer:

Asexual reproduction is a method of reproduction for most of single cell organisms including yeast, in this type of reproduction a single parent generates new organism and new one is exact copy of parent both physically and genetically.

In yeast asexual reproduction is carried out by budding, its an asymmetric type of division in which first a protruding body is produced on its surface, it fully grows and forms bud later. When full grown, buds detach from the parent cell and grows independently. Instead of single bud, a chain of buds could also be produced at the surface of yeast.

the answer is demography

I wanna say D, but I’m not entirely sure

by growing tress and by putting down hydro mulch as needed

Answer:

Yes they are identical.

Answer:

No they are not.

Explanation:

They’re antiparallel because the two strands are “built” in opposite ways: one runs from 3' to 5' while the other is a 5' to 3' direction, 3 and 5 indicating the number of carbon rings in the deoxyribose rings of the sugar-phosphate backbone. It has nothing to do with the coding itself.

Genetically modified food is food produced from plants or animals whose DNA has been altered through genetic engineering. These genetically modified organisms are often called GMOs for short.

d) a food product with genes that have been changed.

Answer: cedar tree.

Explanation:

Deciduous trees are trees that shed off their leaves seasonally and regrow them during spring.

Examples are maple, hickory,beech, mangoe e.t.c.

Cedar is an evergreen tree. Evergreen tree maintain their leaves in all seasons. Cedar maintain it's leaves in all seasons, it doesn't shed it leaves.

gene,chromosome,dna,nucleus, and cell

if you look it up you will get the following stated below

"nitrogenous base, nucleotide, codon, gene, chromosome, nucleus, and cell"\

an easy way to remember it will to be

the gene tells you what it would be you get one from mom and one from dad

you need genes to link and make chromosomes

chromosomes to link into strands of dna

there is dna in the nucleus and the nucleus in inside the cell.

hopefully this helps.

Final answer:

The correct order from the smallest to the largest is gene, DNA, nucleus, cell, which makes option 3 the correct answer.

Explanation:

To determine which of the following is in the correct order from the smallest to the largest, consider the hierarchical structure of genetic material within a cell. The correct order from smallest to largest is gene, DNA, nucleus, cell. Therefore, the correct option is (3) gene, DNA, nucleus, cell.

Genes are segments of DNA that code for specific proteins and represent the functional units of heredity. DNA (deoxyribonucleic acid) is the molecule that carries the genetic instructions. A nucleus is an organelle within eukaryotic cells that contains the DNA. Finally, the cell is the smallest unit of life, encompassing the nucleus and other organelles.

The correct answer choice would be C.) The death rate will increase. As the ecosystem's carrying capacity has been reached, more and more pressure is placed on the supplies the ecosystem can supply, eventually causing a collapse, which causes death rates to skyrocket. Hope this helped!

The answer would be C

i just took the test :)

Answer:

leading, in fragments, DNA polymerase cannot synthesize to the 3' to 5' direction

Explanation:

I took the test and got all of them right!!!!

It enters the citric acid cycle and associates with a 4-carbon molecule, forming citric acid, and then through redox reactions regenerates the 4-carbon molecule.

Answer:

B) it enters the citric acid cycle and associates with a four carbon molecule form is citric acid and then through redox reactions jet regenerates the four carbon molecule.

Explanation:

Acetyl CoA enters the citric acid cycle and reacts with a four carbon compound, that is, oxaloacetate. The reaction forms citric acid (6 carbons) which in turn undergo redox reactions to regenerate the oxaloacetate and the released electrons are accepted by NAD+ and FAD+. The final products of citric acid cycle are CO2, H2O, NADH and FADH2.

Chromosome and chromatid are closely related structures that are made from DNA molecules. Chromosomes contain genetic information in the form of specific DNA sequences or genes. A single strand of DNA is called a chromosome and two chromatids will form a single chromosome.

Answer:

Chromosome and chromatid  are related because there are both made from DNA molecules

Explanation: