Which statement is true ?

The right answer is D.

Light is essential for any plant so as chlorophyll. They allow plants to convert light energy into sugars.

It appears that a correlation links productivity and chlorophyll under special conditions. The more chlorophyll there is, the more electron transfer is ensured, the more photosynthesis is amplified and the more oxygen and glucose are produced.

The amount of Chlorophyll contained in the leaves provides information on the health of the plant, its vigor and ensures that its Nitrogen requirements are met. The trace elements necessary for the plant are drawn by the roots in the soil.

The right answer is the lobed body.

The name trilobite comes from the subdivision of the body into three longitudinal lobes:

A medial lobe, the rachis,

And two lateral lobes, the pleura.

There is also a subdivision into three regions from front to back: the cephalon ("head"), the thorax and the pygidium ("tail").

The number of spines is a trilobite characteristic that did not change over time, unlike the shape of their eyes or the number of body segments.

Trilobites are an extinct group of marine arachnomorph arthropods. They are recognized by their characteristic 3-lobed, 3-segmented body structure. Although trilobites underwent numerous changes over time due to evolution, one characteristic that did not change was the number of spines. The number of spines remained consistent throughout the trilobite's existence. This is in contrast to other trilobite characteristics such as the shape of their eyes or the number of body segments, both of which evolved over time in response to changing environmental conditions.

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The right option is; to identify the 3 billion genes that comprise the human genome

The Genome Project (HGP) is the world’s largest international scientific research project that has the goal of mapping the nucleotides (more than 3 billion), that makes up the whole human genome, and recognizing the structure and functions of the entire genes. Several organizations that contributed to the project include; National Human Genome Research Institute (NHGRI) of Health, international partners in France, United Kingdom, the U.S. Department of Energy, and many universities and laboratories in the United States.

The Human Genome Project was aimed at finding out an accurate and complete sequence of the human genome that comprises around 3 billion base pairs in the DNA.

Further Explanation:

A scientific research project based internationally was Human Genome Project (HGP) whose goal was to determine the genetic makeup or base pair sequence of the human DNA. It also aimed at mapping and identifying all the genes belonging to the human genome based on their functional and physical viewpoint. It is the world’s largest biological project that has been collaborated so far. In the year 1984, the US government initially planned the project which was launched later in 1990 and completed in 2001. The project was funded by the National Institutes of Health (NIH), the US government and several other groups from all over the world.

The aim of the HGP was to identify and make the correct map of the nucleotides that are present in the haploid reference genome of a human which in turn contains more than 3 billion base pairs. Every individual has a unique set of nucleotide which represents his/her genome. The mapping process includes the sequencing of the individuals in small numbers which is followed by gathering the information in order to find out the complete sequence for every single chromosome. Therefore, the end result would be a mosaic of the human genome which does not represent just one individual.

The project could not estimate all the sequences of the DNA present in the human cells. It was only able to sequence the genome with euchromatic regions that make up around 92.1% of the genome. The heterochromatic regions were not sequenced under this project which was present in the telomeres and centromeres.

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Answer Details:

Grade: Secondary School

Chapter: Human Genome Project

Subject: Biology

Keywords:

Human Genome Project, genome, DNA, nucleotides, base pairs, haploid reference genome, chromosomes, euchromatic region, heterochromatic region, centromeres, telomeres.

Your best answers are T T F

Answer:

c) the energy pyramid will be completely disturbed.

Explanation:

Answer:

The correct answer would be option D.

Explanation:

Pollen of a plant is a gamete, that contains half of the alleles are required to produce the plant. Pollen fuse with stigma and complete the required alleles or genetic information.

Possible combinations in pollen would be one allele from each trait in every form either dominant or recessive. So ST, St, sT, st. would be the correct possible genetic combination present in a single grain.

Thus, the correct answer is option D.

Answer:

Option D

Explanation:

There are two different traits represented by the term "SsTt". Where "S" is the allele for a dominant trait 1 and "s" is the allele for a recessive trait 1.  Like wise "T" is the allele for a dominant trait 2 and "t" is the allele for recessive trait 2.

In a genetic combination , both the  allels of both the traits will pair up with each other one by one.

i.e "T" will pair up with both "S" and "s" to form "TS" and "Ts" gametes

Similarly "t"will pair up with both "S" and "s" to form "tS" and "ts" gametes

Hence, option D is correct

6. Answer;

- Faster

Explanation;

Compared to the time in Earth's history before humans appeared, rates of soil erosion are faster.

-Soil erosion is the wearing apart of topsoil. Topsoil is the top covering of soil and is the abundant fertile because it includes the several natural, nutrient-rich minerals. Every year, around 75 billion tons of soil is disintegrated from the land—a rate that is about 13–40 times as quick as the typical rate of erosion.

Additionally, some human activities associated with building structures increases the rate of erosion

7. Answer;

-Mass movement

The process responsible for moving material downslope under the influence of gravity is called mass movement.

Explanation;

-A mass movement is the geomorphic process through which soil, sand, regolith, and rock move downslope typically as a solid, continuous or discontinuous mass, largely under the force of gravity.

-It involves the sudden movement of a block of material along a flat, inclined surface is called a rock slide or a slide.

8. Answer;

The plant roots bind the soil and regolith together.

The removal of vegetation may trigger mass movements because the plant roots bind the soil and regolith together.

Explanation;

-Vegetation removal can trigger mass wasting or mass movement as vegetation stabilizes soil. When it is removed from a slope, the slope is vulnerable to water and wind erosion.

68 calories

The metaphor for life in the poem is a Monopoly game, as the poem begins with 'Some say life's a Monopoly game,' comparing life's journey to the board game.

The metaphor for life in the poem given is D. a Monopoly game. The opening line of the poem, "Some say life's a Monopoly game," explicitly states that life is being compared to the board game Monopoly. This is an example of metaphor as a literary device, where life is not literally a board game, but it is being compared to one in order to illustrate the idea that life, like Monopoly, has various ups and downs, successes and failures, and is ultimately a game of chance and strategy.

Answer: B. Water breaks down into oxygen molecules for respiration.  

Water is the required for photosynthesis, a process by which plants (terrestrial and aquatic) makes their food by utilizing water as a reactant to produce oxygen and glucose as product. The glucose act as a source of energy for conducting various metabolic processes in plants but oxygen is released in the air.

[tex]6CO_2\ \ \ \ +6H_2O\rightarrow\ C_6H_{12}O_6+6O_2\\carbon\ \ \ \ water\ \ \ \ \ \ \ \ glucose\ \ \ \ \ \ \ oxygen\\ dioxide[/tex]

This oxygen is necessary for terrestrial and aquatic animals for respiration. Therefore, water breaks down into oxygen by the process of photosynthesis, hence water plays important role in respiration in living beings.  

Answer:

The correct answer would be A. It has DNA that is not contained within a nucleus.

The main difference between prokaryotic and eukaryotic cell is the absence of a well-defined nucleus and other membrane-bound organelles like the Golgi body, mitochondria et cetera in a prokaryotic cell.

The DNA in the prokaryotic cell floats freely in the cytoplasm in the region called nucleoid which means nucleus-like.

Thus, an observation like the absence of a nucleus can provide the evidence that a cell is most likely a prokaryote.

Answer: c. waxy needles

Taiga is the biome with needle leaf trees. It is a cold biome. Douglas-fir have long, thin and waxy needle shaped leaves. Wax prevents the loss of water through transpiration and also prevents freezing and leaves being drying out.

The correct answer is:

d. growth pattern

Explanation:

Plants in the grassland must face dry situations, fires, and grazing animals. They have long, narrow leaves, long roots, soft stems, and can even go lethargic to sustain their tough environment. They have adjusted how they grow and scatter their pollen and seeds so that more plants can live in this incredible habitat.Average growth is the series of changes in height, weight, and head circumference that are harmonious with authorized standards for a released population.

Answer: it grows a tube to travel down to the ovary

Explanation:

As a result of pollination, pollen grain lands on the sigma of the pistil or carpel.  On the stigma pollen grain begins to germinate and grows a long pollen tube.  The pollen tube grows longer and makes its way from the stigma, down the style and reaches to the ovary. Pollen tube carries two male gametes or sex cells. One male gamete fertilize the egg cell to produce zygote and the gamete fuses with polar nuclei to form primary endosperm cell.

Answer:

It grows a tube to travel down to the ovary

Explanation:

Answer:

skin cancer is and ultraviolet light

Explanation:

Based on the visible features, one possible conclusion is that Cell B is more active than Cell A. The correct option is B. more active transport occurs in cell A than cell B.

Based on the image you sent, here are some possible conclusions that can be drawn about the activity of the two cells:

Cell A:

Less active: The presence of a cell wall suggests Cell A is a plant cell. Plant cells typically have less metabolic activity compared to animal cells due to their slower growth rates and photosynthetic energy production.

Storing energy: The large central vacuole in Cell A could indicate storage of excess nutrients or waste products, suggesting lower metabolic activity compared to Cell B.

Cell B:

More active: The absence of a cell wall suggests Cell B is an animal cell. Animal cells are generally more metabolically active than plant cells due to their diverse functions and constant need for energy from external sources.

Engaged in protein synthesis: The prominent rough endoplasmic reticulum (RER) in Cell B indicates high protein production activity, suggesting a more active metabolic state compared to Cell A.

Complete Question:

The diagram below represents two cells viewed using the same magnification with the same microscope.

One possible conclusion that can be drawn about the activity of these two cells is that: