In tree rings, like those shown, each "ring" of growth represents what?

A. Two years of growth
B. One season of growth
C. One month of growth
D. One year of growth

Answer:

.975

Explanation:

1 millimeter is equal to .1 cm

so divide 9.75 by 10

Answer:

Butterfly

Explanation:

a heterotroph is an organism that cannot make its own food, and therefore relies on other organisms for sustenance.

potatoes, sunflowers and soybeans are all plants and make their own food through photosynthesis

(they are called autotrophs)

However a butterfly relies on flowering plants to provide the nectar that it consumes.

if all the flowering plants suddenly died the butterflies would most likely die as well because their food source has been eliminated.

therefore the butterfly is a heterotroph

During cytokinesis, cell pinch off and divides into 2 daughter cells in mitosis.

The division of the nucleus occurs after the cytoplasm (cytokinesis) during the cell cycle (karyokinetic).

Different cytokinesis processes take place during cell division in animal and plant cells.

Animal cells undergo cytokinesis by the production of two daughter cells as the parent cell's plasma membrane pinches inward along the equator, whereas plant cells undergo cytokinesis through the formation of a cell plate.

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Answer:

Selective pressure is any phenomena which alters the behavior and fitness of living organisms within a given environment. It is the driving force of evolution and natural selection, and it can be divided into two types of pressure: biotic or abiotic.

Explanation:

A  selective pressure is any reason for an organism with a certain phenotype to either have a benefit of survival, or a disadvantage.

Answer:

1 A,  2 B.

Explanation:

1. In carbonization, a thin film of carbon mineral is formed on the fossils, giving them a dark black coloration, which makes us conclude that the fossils observed are an example of carbonization.

2. The presence of tropical swamp plant impressions in polar regions is an indication of a different, likely warmer climate in the past, in the polar regions, because plants commonly grow in similar conditions as their living counterparts and no tropical swamp plants are known that can live in polar regions today. Lichens that live in the tundra are not real plants.

Answer:

Impressions of tropical swamp plants were observed on rocks in polar regions. The impressions were dark black imprints, which means the fossils are examples of trace fossils . The fossils tell us that polar regions had tropical plants that could grow in ice.

Explanation:

hope it helps :)

Answer:

There would be no fertilization.

Explanation:

When the fallopian tube is blocked, even after ovulation (an egg released by the ovary), it will be unable to travel down the fallopian tube towards the uterus. This way, even when the sperm swim up to the tube (where fertilization  of the egg usually occur) after copulation, it will be unable to meet the egg and fertilize it. There will never be conception as long as there is blockage on location X.

The removal of kangaroo rats from a desert food chain could lead to an overabundance of seeds and a decline in predator populations, such as kit foxes, potentially causing a collapse of the entire food web.

If the kangaroo rats were removed from a desert food chain, a ripple effect would take place, which would influence the entire ecosystem. As consumers of seeds, the absence of kangaroo rats could lead to an overabundance of seeds. Without kangaroo rats acting as a food source for their predators, such as kit foxes, these predators might face a decline in population due to a lack of food. This can create an imbalance, potentially leading to the overpopulation of some species while others might diminish or even become extinct. As tertiary consumers lose their prey, they may starve and die, which could even lead to the collapse of the entire food web. Ecosystems are interconnected, so the removal of one species, especially a key species like the kangaroo rat, can have far-reaching consequences.

Yes the answer’s C.

so what’s your question?(tell me in comments)

C. In plants, a new cell wall forms to split the cell.

Mitosis is the process of cell division that occurs in both plants and animals, but there are key differences in how the process is completed.

In animals, during the final stages of mitosis (cytokinesis), the cell membrane pinches inwards, forming a cleavage furrow, which eventually splits the cell into two daughter cells. This process is possible because animal cells lack a rigid cell wall, allowing the membrane to easily bend and constrict.

In plants, however, the presence of a rigid cell wall makes it impossible for the cell to constrict in the same manner. Instead, during cytokinesis, plant cells form a cell plate in the center of the dividing cell. This cell plate grows outward, eventually developing into a new cell wall that separates the two daughter cells.

Gene regulation results in each cell producing only the proteins it requires. It allows a cell to express or suppress genes as needed, creating differences between cell types.

The outcome of gene regulation is that each cell produces only the proteins it needs (option C). In other words, gene regulation allows a cell to express or suppress gene information as necessary, thus helping it respond appropriately to its changing needs and the conditions around it. This is why, for instance, a liver cell differs from a muscle cell, even though they contain the same genetic information. The liver cell will only produce proteins necessary for its functions whilst suppressing the genes required for muscle functions, and vice versa.

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Answer:

C. They live for only 120 days

Explanation:

Red blood cells are small and biconcave cells that are known for their lack of nucleus. (Rules out A) Aside form that, they also lack mitochondria and robsomes. They are created in the bone marrow and they live for about 100 to 120 days (rules out B and D) before macrophages recycle them.

Answer:

C

Explanation:

The true statement about viruses is that they have no nucleus. Viruses are acellular entities that require a living host to reproduce and are not considered alive since they cannot maintain homeostasis or reproduce on their own.

The true statement about viruses is that viruses have no nucleus. Unlike living cells, viruses are acellular and do not have a cell membrane, cytoplasm, or ribosomes. They need a living host to reproduce as they cannot replicate outside of a host cell. Not all viruses are deadly, and while some can cause serious illness, many can be relatively harmless or cause only mild diseases.

The viral structure can be simplified as a nucleic acid (either DNA or RNA, but not both) encased in a protein coat known as a capsid, and in some cases, an envelope derived from the host's membrane with embedded glycoproteins that help the virus attach to the host cell. These characteristics make viruses unique entities on the borderline of living and non-living matter.

Answer:

A. Diseases will increase

Answer: A. Diseases will increase.

Explanation:

A limiting factor is the one which is potent enough to limit the growth, abundance and distribution of the population of species in an ecosystem. Carrying capacity is the maximum number of the population of species which an ecosystem can support by availing resources. If the population exceeds above the carrying capacity, it starts declining.

According to the situation given, diseases will increase is the correct option. Diseases can be limiting factor for reducing the population of humans in an area. Hence, will maintain the carrying capacity.

Glycolysis is the only energy extraction mechanism used throughout fermentation, with one or two additional processes added at the end. Both cellular respiration and fermentation start with glycolysis.

Many different kinds of organisms and cells use fermentation, another anaerobic (non-oxygen-requiring) process for breaking down glucose.

Glycolysis is the only energy extraction mechanism used throughout fermentation, with one or two additional processes added at the end.

An anaerobic metabolic process that begins with the same stage as cellular respiration—the production of pyruvic acid by glycolysis, where net 2 ATP molecules are produced. Pyruvate is converted to lactic acid, ethanol, or other compounds in the following phase.

Therefore, both cellular respiration and fermentation start with glycolysis.

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A compound microscope creates a two-dimensional image. It's constructed from two convex lenses, with the first serving as the eyepiece and the second as the objective lens. It does not construct a three-dimensional image like confocal microscopes.

.As the light travels through these lenses, the image is maximally focused at a single distance from the observer creating a two-dimensional image. A compound microscope provides a magnified and clear view of tissue structure as well as the anatomy of the whole organism, but unlike other forms of microscopy, does not construct a three-dimensional image by scanning multiple z-planes successively like the confocal microscope.

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Final answer:

A compound microscope typically creates a two-dimensional image through the use of convex lenses. Confocal microscopes enhance this capability, allowing for the capture of high-resolution two-dimensional images at different depths that are reconstructed into three-dimensional images using computer software.

Explanation:

The type of microscope that creates a two-dimensional image is a standard compound microscope, which generally comprises two sets of convex lenses: the eyepiece and the objective lens. However, when it comes to sophisticated microscopy techniques capable of capturing higher resolution images, confocal microscopy enters the picture. Despite its capability of producing numerous two-dimensional high-resolution images at various depths, a confocal microscope is also able to reconstruct these images into a three-dimensional image with the help of specialized software. The confocal microscope makes use of a laser to scan the specimen at multiple z-planes, using a pinhole to eliminate out-of-focus light, hence significantly enhancing images of thicker specimens. Contrastingly, the two-photon microscope represents a more advanced form of imaging, capable of penetrating deeper into thick specimens and is highly suitable for live cell imaging in intact tissues.

The wind will blow from the higher pressure over the water to lower pressure over the land causing the sea breeze. The sea breeze strength will vary depending on the temperature difference between the land and the ocean. At night, the roles reverse. The air over the ocean is now warmer than the air over the land.

hopefully i got this right and also helped

Temperature varies seasonally in ponds and lakes. In summer, the temperature can range from 4°C at ground level to 22°C at the top.

In winter, the temperature can be 4 °C below and 0 °C above (ice).

What are the seasons in freshwater?

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Answer: Carbohydrates like sugar and starch are readily broken down into glucose, which is the body's main energy source. Glucose can be used immediately as fuel or stored as glycogen.

Hello There!

An "Urban Microclimate" is the climate of a smaller area in an urban envioment, which may be different to that of another section of the same urban environment.

Cities are microclimates because cities are warmer than the areas around them.

Answer: Micro-climate refers to the small scale climatic condition prevailing in a small area.

Micro-climate in cities differs from place to place depending upon the amount of solar radiations absorbed in that area, amount of precipitation, moisture content, overall surrounding temperature and air pressure.

Most of the cities micro-climates are generally warmer because of its high absorption of solar radiation, lack of spaces between the houses and building and high emission of gases, creating pollution.

Answer:

ovulation, Hormones Rise and Egg Travels to the Fallopian Tube

Explanation:

Answer:

germination and first growth

Pretty sure its Part F

From the diagram, the part of the compound light microscope that provides the light source would be the mirror. The correct answer would be the part F.

In a compound light microscope, the light source can be:

The mirror works by collecting rays of light from the environment and then transmitting such to the stage through the condenser. The electric bulb generate light rays by itself.

Since the microscope in the diagram has no bulb but a mirror, the only light source remains the mirror.

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Answer: The digestive system breaks down food and the circulatory system transports nutrients to cells. Hope this helps.

Explanation:

Answer:

ovaries

Explanation:

In human females, the process of cell division, meiosis occurs in cells of the ovaries.

The process of meiosis occurs in the sexual organs of sexually producing organisms.

Answer:

Ovaries

Explanation:

In human females, the process of cell division, meiosis occurs in cells of the Ovaries.

This is also called oogenesis.

Answer: I believe that would be camouflage.

Explanation:

Camouflage is a defense mechanisms.

this is called mimicry. mimicry is the imitation or looking like something else like in this case. this is also because mimicry is the act of copying the sounds or behaviour of another person or animal.

Answer:

alleles are passed from the parents sex chromosomes

Explanation:

sex linked chromosemes are found in the y and x chromosomes in the reproductive cell i.e the sperm and ovum

The right answer for this question is C - sex-linked traits are inherited through alleles, which are passed from the parents' nonsex chromosomes to the sex chromosomes in the offspring. This means that the child will have a combination of both parents' nonsex chromosomes.

Answer:

A mouse, his homozygous dominant trait is AA which might be shows black color of fur and with homozygous recessive trait aa which might be shows brown color of fur.

Explanation:

A mouse, his homozygous dominant trait is AA which might be shows black color of fur and with homozygous recessive trait aa which might be shows brown color of fur.

If we cross, both the genotypes  dominant trait is AA  and recessive trait aa together, then the offspring will produce with all Aa genotypes which shows black color of fur of the mouse. Brown color is suppressed under the effect of dominant trait AA, but it may be appear in the F2 generation.

Answer:

J.J Thomas - B

John Dalton - A

Ernest Rutherford - D

James Chadwick - C

Answer:

d. freezing temps

Explanation:

Freezing temps allows liquid water to exist on earth.

Answer:

Cerebellum

Explanation:

The cerebellum is a region of the brain whose main function is to integrate the sensory and motor pathways. There is a large number of nerve bundles that connect the cerebellum with other brain structures and with the spinal cord. The cerebellum integrates all the information received to specify and control the orders that the cerebral cortex sends to the musculoskeletal system through the motor pathways. It is the regulator of physiological tremor.

Answer: deserts

Explanation:

Deep ocean habitats are typically the abyssal floors which consists of very few nutrients and this region receives very low sunlight and even no sunlight this results in scanty growth of plants just like deserts. As the plant growth is scanty the animals and zooplankton population dependent upon plants is also low.

It is Deserts..................................