1. What are the 2 ways producers can produce food energy?

The correct answer is option c) antigens. Antigens can elicit a severe immune reaction in the body.

Antigens are substances that can be recognized by the immune system as foreign. When the immune system encounters an antigen, it triggers an immune response to eliminate or neutralize the perceived threat. This immune response involves the activation of various immune cells, such as T cells and B cells, which produce antibodies to target and neutralize the antigen.

While antibodies (option a) are produced by the immune system in response to antigens and play a crucial role in immune defense, they do not themselves directly cause severe immune reactions. Iron supplements (option b), lead (option d), and epinephrine (option e) are not inherently antigenic and do not typically provoke strong immune responses.

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Answer:

carbon dioxide

Explanation:

because when these things burn they produce many harmful gases which harm the environment and cause pollution

In the weather map given below, the letter L represents the low-pressure system that is present in option C. Wind or air flows from the high-pressure area to the low-pressure area.

During the day, the air above the land easily heats up and rises due to its light weight, whereas the water nearby takes longer to heat up, so the air above the water has a high pressure, and the air moves from the high pressure to the low pressure that is from the water to the land.

Hence, In the weather map given below, the letter L represents the low-pressure system that is present in option C.

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Answer:

\(\huge\boxed{\sf Option \ B. }\)

Explanation:

Cell Membrane:

Surface of the cell membrane:

\(\rule[225]{225}{2}\)

Answer:

(c) zygote is the answer

Explanation:

How does a single cell develop into many different types of cells? During the third week after fertilization, the embryo begins to undergo cellular differentiation. Differentiation is the process by which unspecialized cells become specialized.

In the LYTIC PATHWAY of bacteriophages, the virus initiates its replication process and eventually produces enough viral particles to cause its host cell to burst.

In the LYSOGENIC PATHWAY of bacteriophages, viral DNA is integrated into the host's chromosome and replicates with the host until the integrated DNA is reactivated and viral particle replication initiates.

Of the protists, cells of a COLONIAL ORGANISM live together and behave together in an integrated fashion, but remain self-sufficient. In comparison, the cells of a MULTICELLULAR ORGANISM have a division of labor and rely on one another for survival.

Binary fission is a prokaryotic mechanism of ASEXUAL reproduction that yields two equal-sized, GENETICALLY IDENTICAL descendant cells.

The experiments of Stanley Miller and Harold Urey tested whether ELECTRICITY could trigger the formation of simple organic compounds from A MIXTURE OF GASES MIMICKING THE EARLY EARTH ATMOSPHERE.

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It occurs when foreign harmful materials like chemicals, waste matter, or contaminated substances are directly or indirectly discharged into water bodies. ... Any alterations in the chemical, physical, or biological water properties qualify as water pollution.

Answer:

Both water and oil are not minerals because they are liquids.

Explanation:

Answer:

The term that describes the relationship in which one organism lives inside the other one is endosymbiosis.

Explanation:

A base analog that can cause A-T > G-C or G-C>A-T transitions.

Thymine's base analog is 5BU. The thymine analog 5BU pairs with Guanine while thymine pairs with Adenine. The bromine atom in 5BU can switch between its keto and enol forms.

During replication, an A-T pair generates an A-5BU pair when 5BU in keto form replaces the thymine. The unusual enol form of 5BU pairs with G in the first mutagenic phase of replication, and then G couples with C in the subsequent replication cycle. Consequently, the change from the A-T to the G-C pair takes place.

Rarely, the 5-BU in enol form can function as a cytosine analog. This causes C to be replaced by 5BU, turning the G-C pair into a G-BU pair, which eventually transforms into an A-T pair during the second replication cycle.

Therefore, 5BU is a base analog that can lead to transitions from A-T to G-C or G-C to A-T.

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Answer:

i dont about this question ❓

Depending on the type of cell injured by radiation, the biological effects of radiation can be classified as radiation or exposure.

The main health risks from radiation exposure include cancer and genetic damage. Compared to a genetic effect, cancer would be around five times more likely. Chromosome alterations, stillbirths, congenital disorders, and infant and young child mortality are examples of genetic consequences.

The dosage, or the amount of energy physically deposited in your body, is the most crucial element. The extent of the biological harm increases as cells absorb more energy. Radiation dose is the term used by health physicists to describe the quantity of energy received by the body.

Atoms in a DNA molecule can directly interact with ionizing radiation. Cells are unable to reproduce as a result. Direct action can harm vital cellular systems as well. It may occasionally even cause cancer.

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Answer:

The correct answer is : 144.

Explanation:

Given:

K or carrying capacity = 2000

N or population size = 1200

rmax or maximum per capita growth rate = 0.3

formula:

growth rate = \((rmax) (N) \frac{K-N}{K}\)

Solution:

by the formula ,

growth rate =

\((0.3) (1200) \frac{2000-1200}{2000}\)

= \(360 [\frac{800}{2000}]\)

= 360 × 0.4

= 144

Thus, the correct answer is : 144.

Answer:

asthenosphere

Explanation:

simple, asthenosphere.

B. The catalyzed reaction must be protected from water is a general feature of kinases.

What are kinases?

Kinases are the enzymes that facilitate the transfer of a phosphoryl group from ATP to an acceptor. Other molecules in the cell might change their state and become active or inactive as a result. Numerous cell processes involve kinases. Certain kinases that are connected to cancer are the focus of some cancer treatments.

The enzymes known as kinases are responsible for catalyzing the transfer of phosphate groups from high-energy molecules like ATP that can donate phosphate to particular substrates. This method is known as phosphorylation. Kinases are members of the phosphotransferase family of enzymes.

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Answer:

Explanation:

Lactose is the only sugar that cannot be extracted from plants. It can only be found in milk, including human breast milk, and in some dairy products.

Answer: (1.) several hierarchical levels in an ecosystem, that share the same function in the food chain and the same nutritional relationship to the primary sources of energy (2.) that only ten percent is available to the next level  

Explanation:

The probable fact that caused a decrease in the rabbit population, could have been the stated on the last answer option: "d. a higher-than-ideal population of snakes" because of the environmental pressure these animals have upon rabbits.

Answer:

thick and low in nutrients

Explanation:

because it is so cold and has barely any room for life in the first place, the soil is extremely low in nutrients. it is very thick. i know this because worms cannot move or live in that area because it is too cold and the soil is too thick. if you see what i mean since the worms cant get into the soild since its so thick and cold the soil has no nutrients so sorry it was very hard to explain

Answer: C

Explanation:

The cell membrane controls/ regulates the transport of materials that enter into the cell.

To calculate the atoms of an element in a given molecule, we need to multiply stoichiometry by the number that is written on the foot of that element. Therefore, The balanced equation for photosynthesis reaction can be given as

CO\(_2\) + 6 H\(_2\) O → C \(_6\) H \(_{12}\)O \(_6\)+ 6 O \(_2\)

Balanced equation is the one in which the total number of atoms of a species on reactant side is equal to the total number of atoms on product side. The mass of the overall reaction should be conserved. There are so many types of chemical reaction reaction like combination reaction, displacement reaction.

The balanced equation for photosynthesis reaction can be given as

CO\(_2\) + 6 H\(_2\) O → C \(_6\) H \(_{12}\)O \(_6\)+ 6 O \(_2\)

Therefore, the balanced equation for photosynthesis reaction can be given as

CO\(_2\) + 6 H\(_2\) O → C \(_6\) H \(_{12}\)O \(_6\)+ 6 O \(_2\)

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Of the available options, the first one states that cellulose is a structural part of the hair, this is not correct for several reasons, first cellulose is a biopolymer characteristic of cellular walls in plants, and it's not present in animal cells, secondly human hair is formed mainly of keratin a protein, therefore their basic units are amino acids, not carbohydrates. Therefore taking this into consideration, the correct answer is option 1.

Answer:

concealing coloration

Explanation:

Concealing coloration is when an animal's colors match with natural things in it's background, such as trees or flowers.

Answer:

A, most likely

Explanation:

Guard dogs are meant to protect and warn their owners of dangers, and a loud bark would be the best trait to have!!

Answer:

3.5264 x \(10^{7}\)

Explanation:

The metric ton is used as a unit of mass. The metric ton in British units can be represented as 2240 pounds or long ton whereas in United state is termed as 1.102 short ton.

In the given question, it has been mentioned that the growers around the world produce about 3.2 x \(10^{7}\) a metric ton of sunflower.

So the short ton produced will be

= ( 3.2 x \(10^{7}\) ) x 1.102

= 3.5264 x \(10^{7}\) short ton.

Thus, 3.5264 x \(10^{7}\) is the correct answer.

Therefore, if all of the primary producers in this ecosystem are eliminated, option D is the one that is most likely to happen. Populations of sand sagebrush and silk grass will decline.

The breakup of the entire food chain would ensue from the destruction of the producers. Primary consumers or herbivores, which consume producers directly, would vanish.

When a creature is eliminated from the food chain, the ecosystem's energy and nutrient cycles are disrupted. The food chain's equilibrium is disturbed. As a result, the species that rely on other organisms for nourishment will starve to death.

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Methods Stage 1 Germination:  

1. Collect two pot labels. Write your group name and the species you are growing on the labels. Leave enough space to write in the treatments next week.  

2. Collect two pots. Fill each one with white sand and stick in the label. Add water to the pots until there is a trickle from the base:

at this point the sand is holding as the largest volume of water it can under natural circumstances, which is called its 'field capacity.  

3. Collect 10 seeds. Check the seed packet the depth at which the seeds should be sown, and then sow five seeds in each pot. Cover them with sand and water lightly.  

4. Place your pots on the bench in the glasshouse, with their labels in them. The seeds will germinate over the coming week.  

Method Step 2 -

After the seeds germinate, they should be thinned to 3 per pot. Then, the plants should be applied with nutrients. One pot should receive nitrogen (N), phosphorus (P), potassium (K), and micronutrients. The other pot should only receive N, K, and micronutrients, i.e. no phosphorus.  

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