Help, needed. Its for a grade and im confused.

Answer:

Explanation: If two people had given you an answer to your question, then there is a option to mark ONE of them as brainliest. Click on the option “mark as brainliest” near the answer u like most. If only one person gave a answer then after some time u will receive a notification that u can mark their answer an brainiest. In which u just repeat the step of clicking on “mark as brainiest”

English:

Behavioral – responses made by an organism that help it to survive/reproduce.

Physiological – a body process that helps an organism to survive/reproduce.

Structural – a feature of an organism’s body that helps it to survive/reproduce.

Which is the best definition of species?

Spanish:

Conductual: respuestas hechas por un organismo que lo ayudan a sobrevivir / reproducirse.

Fisiológico: un proceso corporal que ayuda a un organismo a sobrevivir / reproducirse.

Estructural: una característica del cuerpo de un organismo que lo ayuda a sobrevivir / reproducirse.

¿Cuál es la mejor definición de especie?

No hablo español, tuve que traducir todo esto jaja

I dont speak spanish, i had to translate all of this lol

Hemoglobin: The high iron-containing protein in red blood cells (RBCs) is known as hemoglobin. This gives the blood a red color.

It has two main functions: it carries oxygen from the lungs to tissues of the body, and it carries carbon dioxide from cells back to the lungs for excretion.

Functions of hemoglobin:

Consequences of hemoglobin deficiency:

Hemoglobin deficiency reduces the blood's oxygen-carrying capacity.

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Answer:

because these genes are present in different copy numbers in males and females.

The Streptococcus pneumoniae bacteria are surrounded by a polysaccharide capsule that makes phagocytosis very difficult.

What is the Streptococcus pneumonia bacteria?

Streptococcus pneumoniae is a type of bacterium that is spherical and has a thick polysaccharide capsule. This bacterium is one of the most common causes of pneumonia, meningitis, and otitis media. Infections with the bacteria Streptococcus pneumonia can be serious and fatal, especially in people who are vulnerable, such as children and the elderly.

Some strains of Streptococcus pneumoniae are resistant to antibiotics, making treatment more difficult. The development of vaccines, on the other hand, has had a significant effect in reducing the incidence of pneumococcal disease in young children.

What are the characteristics of the Streptococcus pneumonia bacteria?

Streptococcus pneumoniae has the following characteristics:

Shape: spherical.

Color: Gram-positive.

Symptoms: pneumonia, meningitis, otitis media, sinusitis, sepsis, and bacteremia.

Resistance: Some strains are resistant to antibiotics.

Motility: non-motile.

Growth: facultative anaerobe.

Oxygen requirements: facultative anaerobe.

The capsule: The Streptococcus pneumoniae bacteria are surrounded by a polysaccharide capsule that makes phagocytosis very difficult. This capsule serves as a barrier to phagocytosis, allowing the bacteria to avoid being destroyed by the immune system.

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According to the research, the correct option is Relative dating. It involves age-dating fossils with known time periods grouped into four eras that represent distinct ages in the history of earth.

It consists of ordering fossils or events in a proper formation sequence from the oldest to the most modern, it tends to be used as a method for making chronologies, the ordering of events, fossils or rocks.

Since it does not give an exact or approximate date, they can only give us a fairly long period of time, or in their case a temporal ordering of the fossils.

Therefore, we can conclude that according to the research,  the correct option is Relative dating. It involves age-dating fossils with known time periods grouped into four eras that represent distinct ages in the history of earth.

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Answer:

This question is asking to identify the following variables in the experiment:

Hypothesis: IF vinegar are applied to geranium plants, THEN the plants will not grow taller.

Independent variable: VINEGAR

Dependent variable: HEIGHT OF PLANTS

Constants: SAME AMOUNT OF SOIL, SAME TYPE OF SOIL, SAME SIZE OF CONTAINER, SAME AMOUNT OF SUNLIGHT, SAME AMOUNT OF WATER

Control group: PLANTS GIVEN PURE WATER

Experimental group: PLANTS GIVEN VINEGAR SOLUTION

Explanation:

The hypothesis is a testable explanation to an observed problem or question. In this case, the hypothesis as stated by Rosa is: IF vinegar are applied to geranium plants, THEN the plants will not grow taller.

Independent variable is the variable that is changed or manipulated by the experimenter in an experiment. In this case, the independent variable is the VINEGAR.

Dependent variable is the variable being measured by the experimenter. In this experiment, the dependent variable is the HEIGHT OF GERANIUM PLANTS.

Constants are those variables that are kept unchanged throughout the experiment in order not to influence the outcome. In this experiment, the constants are SAME AMOUNT OF SOIL, SAME TYPE OF SOIL, SAME SIZE OF CONTAINER, SAME AMOUNT OF SUNLIGHT, SAME AMOUNT OF WATER.

Control group is the group that does not receive the experimental treatment (vinegar). In this case, the group of PLANTS GIVEN PURE WATER are the control group.

Experimental group are the group that receives the experimental treatment in an experiment. In this case, the experimental group are the group of PLANTS GIVEN VINEGAR SOLUTION

The most likely arbuscular mycorrhizal fungi (AMF) association would be with crop plants, as AMF are known to form symbiotic relationships with the roots of many agricultural crops, enhancing nutrient uptake.

Arbuscular mycorrhizal fungi (AMF) are known for their symbiotic associations with plant roots, forming arbuscular structures within the root cells. These fungi have a widespread occurrence and are particularly common in agricultural ecosystems. They establish mutualistic relationships with a variety of crop plants, facilitating nutrient uptake, particularly phosphorus, in exchange for carbohydrates provided by the plant. This association benefits both the AMF and the crop plants, contributing to improved plant growth and productivity.

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Afferent arteriolar vasoconstriction decreases blood flow into the glomerulus, which causes the glomerular-capillary blood pressure to decrease, leading to a(n) decrease in the net filtration pressure and a resultant decrease in the GFR.

Constriction of the afferent arterioles has two inpact

it increases the vascular resistance which lessens renal blood flow (RBF), and it lowers the pressure downstream from the constriction, which lower the GFR.

Thus, Afferent arteriolar vasoconstriction reduces blood flow into the glomerulus, which causes the glomerular-capillary blood pressure to lessens .

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Loss of the protein MazF could result in a cheater cell phenotype in response to extreme starvation in bacterial cells.

In bacterial cells, programmed cell death (PCD) in response to extreme starvation is mediated by the toxin-antitoxin pair MazF and MazE. MazF acts as the toxin that initiates PCD, while MazE functions as the antitoxin that keeps MazF in check. PCD sacrifices some cells in the population to increase the fitness of the genetically related cells.

In the scenario described, the risk arises from mutant "cheater" cells that do not undergo PCD but still benefit from the nutrients released by the dead cells. To become cheater cells, these mutants need to bypass or avoid the effects of PCD mediated by MazF.

Therefore, loss of the protein MazF would result in a cheater cell phenotype. Without MazF, the initiation of PCD would be disrupted, allowing the mutant cells to survive and take advantage of the nutrients released by the dying cells. Loss of the other proteins mentioned (CIPAP protease, glucose 6-phosphate dehydrogenase - G6PD) would not directly influence the initiation or regulation of PCD mediated by the MazF-MazE toxin-antitoxin system.

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Traits of the cow arose by c)Artificial selection resulted in changes in the lineage which leads to domestic cows because humans wanted animals with high milk output and high muscle content. So, correct option is c.

Well before Darwin and Wallace, individuals were utilizing determination to change the elements of plants and creatures. Ranchers and raisers permitted just the plants and animals with beneficial attributes to duplicate, causing the advancement of homestead stock. This cycle is called counterfeit determination since individuals (rather than nature) select which living beings get to reproduce. Artificial selection is the ID by people of beneficial attributes in plants and creatures, and the means taken to upgrade and sustain those qualities in people in the future.

Artificial selection  works the same way as normal choice, then again, actually with regular determination it is nature, not human impedance, that makes these decisions. Artificial selection has for some time been utilized in agribusiness to create creatures and harvests with helpful attributes. The meats sold today are the aftereffect of the specific reproducing of chickens, steers, sheep, and pigs.

Hence,correct option is b.

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(Complete question) is:

The cow Bos primigenius (which is farmed for meat and milk) has a smaller brain and larger eyes than closely related species of wild ungulates. Which of the following statements best describes the process that led to differences between domesticated/farmed cows and their wild relatives?

a) Natural selection resulted in changes in the wild species because humans preyed upon them.

b) Natural selection resulted in changes in the lineage leading to domesticated cows because humans provided food for their cows.

c) Artificial selection resulted in changes in the lineage which lead to domestic  cows because humans wanted animals with high milk output and high muscle content.

d) Artificial selection resulted in changes in the lineage leading to domesticated cows because humans wanted animals that would see predators and escape from them.

Students are observing an aquatic plant, and from that, they get to know about the photosynthesis process and they observe that in the light of the sun, the bubbles intensify, and when the sun goes down, the bubbles lessen, that is the last option.

Photosynthesis takes place in plants, algae, and some bacteria, and they can make their own food using energy from sunlight and photosynthesis provides the energy source, which is the basis of the food chain. Photosynthesis is essential for regulating the Earth's climate, producing oxygen, and maintaining many important ecological cycles in ecosystems.

Hence, students are observing an aquatic plant, and from that, they get to know about the photosynthesis process and they observe that in the light of the sun, the bubbles intensify, and when the sun goes down, the bubbles lessen, that is the last option.

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Answer:

BH BH bH bH

Explanation:

I used the foil method to solve the problem

Answer:true

Explanation: i took bio before i would know

Answer:

Carbon, Hydrogen and Oxygen :)

Answer:

Hey!

LIPIDS consist of HYDROGEN, OXYGEN and CARBON!

Explanation:

They are insoluble in water and produce high energy yields...

(mostly thanks to the hydrogen and oxygen)

Answer:

CLAIM: IF THE FUSED B CANCER CELLS ARE GROWN IN A MEDIUM THAT DOES NOT CONTAIN NITROGEN SOURCE, THE CELLS WILL STOP SYNTHESIZING PROTEINS AND THEIR LIFE SPAN WILL BE GREATLY REDUCED

Explanation:

The growth medium that was used to reproduce the fused cancer B cells contains nitrogenous compounds that serves as source of nitrogen for the production of nitrogenous bases of DNA, If the nitrogen source is removed, the DNA in the nucleus of the white blood cell will lack adenine and guanine, which are necessary for the synthesis of DNA molecules.

2. Nitrogen is an integral part of DNA and protein. Nitrogen is needed to produce nitrogenous bases that are found in DNA. The DNA molecule is the one that initiate and direct the synthesis of protein in living cells.

In the fused B cancer cells, DNA must be produced, so that the dividing cancerous cells can continue their uncontrolled division, this will keep the cells alive. Nitrogen is also needed for the continuous synthesis of the special protein that the fused B cell is producing.

Thus, if nitrogen source is removed from the growth medium used for the cultivation of fused B cells, then the cells will stop synthesizing protein, their life span will be greatly reduced and they will eventually die out.

Answer:

fruit

Explanation:

Answer:

Horticulturist

Answer:

horticulturist

Explanation:

on  e d g e n u i t y

predators

Explanation:

Primary consumers are carnivores that survive on secondary consumers (herbivores).

Answer:

1st more autotrophs than heterotrophs

Explanation:

Hope this helps

The MPF Cyclin concentration in fertilised clam eggs is seen over time in the cyclin levels graph. During a normal cell cycle, MPF Cyclin concentration would decrease as mitosis progressed.

Thus, following fertilisation, the MPF Cyclin concentration shows a sharp rise in the cyclin levels graph, peaking at about 15 minutes. The advancement of the cell cycle, notably the change from the G2 phase to mitosis, depends on this rise in cyclin concentration.

As mitosis advances and the cell divides, the cyclin concentration steadily declines after reaching its peak in the cyclin levels graph. When a result, the fall in MPF Cyclin concentration during a normal cell cycle in clam eggs would take place when the cell completes its division in the latter stages of mitosis.

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Answer:

Tubarial gland i believe

Explanation:

Selection refers to the process whereby certain traits are favored over others in a given population, usually based on their adaptability to the environment. This process can lead to the increased frequency of certain phenotypes, thereby changing the overall genetic composition of the population.

An experimental setup can be designed to test the influence of selection on leading to the increased frequency of certain phenotypes.In this experimental setup, two populations of a particular species are taken, and they are subjected to different environmental conditions. One population is exposed to favorable conditions, while the other is exposed to unfavorable conditions. The populations are then allowed to breed for several generations, and the phenotypic traits of the offspring are recorded.The experimenters can then compare the frequency of certain phenotypic traits between the two populations to see whether or not selection has occurred.

If the frequency of certain traits has increased in the population exposed to favorable conditions, then this would suggest that selection has occurred and that these traits are adaptive in the given environment. If the frequency of certain traits has decreased in the population exposed to unfavorable conditions, then this would suggest that these traits are not adaptive in the given environment. Thus, the experimental setup tests the influence of selection on leading to the increased frequency of certain phenotypes.

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Answer:

B.) Glycolysis -> alcohol fermentation

Explanation:

The correct pathway of anaerobic respiration in yeast is Glycolysis -> alcohol fermentation. Thus option B is correct.

Alcohol fermentation is a complex process where sugars like glucose, sucrose, and fructose are converted into ethanol, carbon dioxide, and  other metabolic by-products, these products are mainly contribute to the sensorial properties and chemical composition of the fermented food.

It is also called as ethanol fermentation is processed by yeast or some other microorganisms, used to make ATP. Yeast functions in the presence of oxygen called as aerobic fermentation but it can also perform  in absence of oxygen or under anaerobic conditions.

This process show has a profound importance for the manufacturing of alcoholic beverages like beer and wine.

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Despite their seemingly simple anatomy and radial symmetry, echinoderms are a type of deuterostome, and closely related to the chordates.

Deuterostomes are a group of animals characterized by the way they develop during embryonic development. During this process, the orifice develops before the mouth,

which is opposite of what happens in protostomes. Chordates, on the other hand, are animals that possess a notochord, dorsal nerve cord, pharyngeal slits, and a post-orifice tail at some point in their life.

While echinoderms do not possess these exact characteristics, they do possess similar structures, such as a water vascular system and tube feet, which are believed to be evolutionary adaptations from the same ancestral structures found in chordates.

Therefore, despite their differences in anatomy, echinoderms are considered a close evolutionary relative to chordates and both are part of the larger deuterostome group.

Although they exhibit radial symmetry as adults, their larval stages have bilateral symmetry, hinting at their close relationship with chordates.

Both groups are part of the larger Deuterostomia  superphylum, highlighting their shared evolutionary history.

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Answer:

In tube 3, water molecules are moving towards higher concentration i.e., from beaker to tube content, thus the mass increases but in case of tube 4, water is moving out from tube contents to beaker, as the beaker contains more concentrated solution. Thus, the correct answer is 'Water is moving into Tube 3, and water is moving out of Tube 4.'

Solve any question of Excretory Products

Answer:

burning of fossil fuels

Explanation:

Air pollution is human-provoked, because of the factories, powerplants, cars, planes, and most important, because of the burning of fossil fuels, such as coal, gas, oil, gasoline.

The indicator that shows how much fossil fuel is burned every day is carbon-dioxide, as it indicates how many dangerous gases are let in the air.

The following is a density-dependent limiting factor: the disease that is in Option a. The disease is a density-dependent factor that is dependent on the density of the population.

There are two types of factors that regulate the population: density-dependent factors and density-independent factors. The density-dependent factors include disease, a shortage of food, etc., and all these negatively affect the density of the population, while the density-independent factors are the heat wave, fire, and drought, which do not depend upon the population density.

Hence, the following is a density-dependent limiting factor: the disease that is in Option a.

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