PLEASE HELP!! 50 PTS!!

A eukaryotic cell has 6 chromosomes, explain what you would get at the end meiosis.

Answer:

The correct answer is D. Many lines of evidence show climate change occuring.

Explanation:

Answers A and C are obviously incorrect wich leaves B and D. Between those two, D seems the most logical.

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Answer:

1- The CRISPR-Cas system

2- Genetically modified organisms raise concerns associated with allergic reactions, horizontal gene transfer and outcrossing

Explanation:

The CRISPR (Clustered Regularly Interspaced Short Palindromic Repeats)-Cas (CRISPR-associated) technology is widely used in medicine and research. The CRISPR-Cas is a versatile RNA-programable genome editing system capable of introducing genetic modifications at target DNA sequences. This technology is based on the natural bacterial immune system that cleaves bacteriophages and plasmid DNA sequences. Moreover, Genetically Modified Organisms (GMO) have historically raised three major concerns on human health: 1-the allergenicity of GMO foods, 2-the ability that GMOs might have to insert genes through horizontal transfer and 3-outcrossing between GMOs and (genetically) unmodified crops, which are further consumed as non-GM foods.

Answer:

Fossil fuels are made from decomposing plants and animals. These fuels are found in the Earth's crust and contain carbon and hydrogen, which can be burned for energy. Coal, oil, and natural gas are examples of fossil fuels.

Explanation:

1. an animal that feeds on carrion, dead plant material, or refuse.

2. a person who searches for and collects discarded items.

The correct pathway of blood through the body, including the lungs, is heart----> aorta----> body----> vena cava----> heart----> pulmonary arteries----> lungs----> pulmonary veins----> heart.

It is the circulation of blood throughout the body.

The two types are:

Pulmonary circulation starts with deoxygenated blood from the right ventricle where, through pulmonary arteries, it reaches the lungs (oxygenation of blood occurs), then through pulmonary veins, blood enters the heart in the left atrium.

Systemic circulation starts with oxygenated blood from the left ventricle, from where, through the aorta, it is pumped to the body, then to the superior or inferior vena cava, and then blood reenters the heart in the right atrium.

Hence, the correct answer is option b): heart--> aorta--> body--> vena cava--> heart--> pulmonary arteries--> lungs--> pulmonary veins--> heart.

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Answer:

A. Susanna's toddler potbelly would continue to grow.

The one that would likely to be observed in Susanna is that the cartilage would turn to bone at a faster rate. The correct option is C.

Cartilage is a tough, pliable connective tissue that surrounds and protects your joints and bones.

It acts as a shock absorber all over your body. When you move your joints, cartilage at the ends of your bones reduces friction and keeps them from rubbing together.

Cartilage serves many purposes, including the ability to resist compressive forces, improve bone resilience, and provide support on bony areas that require flexibility.

The chondrocyte, which lives within the lacunae, is the primary cell that produces cartilage.

All of the cartilage is eventually replaced by bone. As a result, the cartilage tissue serves as a template for the bone that follows.

The skeletal components of the vertebral column, pelvis, and limbs are formed of cartilage first, then bone.

Thus, the correct option is C.

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The products in the chemical reaction for photosynthesis are \(C_{6} H_{12}O_{6}\)(glucose) and \(O_2\) (oxygen). The correct answer is C.

During photosynthesis, plants use carbon dioxide (\(CO_2\)), water (\(H_2O\)), and energy from sunlight to produce glucose (\(C_{6}H_{12}O_{6\)) and oxygen (\(O_2\)).

The equation represents the process of photosynthesis, where carbon dioxide and water are combined in the presence of sunlight to create glucose and release oxygen as a byproduct.

The glucose produced serves as the main energy source for plants, which can be used for growth, maintenance, and other metabolic processes.

Oxygen is released into the atmosphere as a waste product of photosynthesis and is essential for the survival of many organisms, including humans, as it is required for cellular respiration.

Therefore, the correct products of the chemical reaction in the equation are \(C_{6} H_{12}O_{6}\) (glucose) and \(O_2\) (oxygen). The correct answer is C.

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The citric acid cycle, sometimes referred to as glycolysis, is the initial phase of cellular respiration. The second stage is the Krebs cycle, also referred to as the electron transport chain (stage 3).

Glycolysis can still go place in the absence of oxygen through a process called fermentation. Whereas pyruvate oxidation, the Krebs cycle, and oxidative phosphorylation take place in the mitochondrion, glycolysis happens in the cytosol.

The Krebs cycle, commonly known as the citric acid cycle, is the third stage of aerobic respiration. Oxaloacetate and acetyl-coenzyme A interact during this step of aerobic respiration to create citric acid.

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Answer:

Prokaryotes are those organisms which lack true nucleus and membrane bounded organelles while eukaryotes have true membrane bound nucleus as well as membrane bound organelles.

Unicellualr organisms composed of only one cell while multicellular organisms consists of large number of cells.

Heterotrophic organisms get their food from other organisms while autotrophic organisms synthesize their own food b with the help of photosynthesis.

sexual reproduction involves meiosis for production of gametes then fertilization and dvelopment while in asexual reproduction cells simply divide by mitosis and develops a new organism.

these ar the basic characteristics used for classifcation. plants are autotrphic multicellular sexually or asexually reproducing organisms, while animals are hetertrophic, multicellular and can also reproduce sexually as well as asexually.

Explanation:

Answer:

He is practicing principles of visual encoding

Answer: the answer is carbon dioxide

Explanation:

Answer:

See the answer below

Explanation:

Liverworts, mosses, or ferns hardly grow in dry biomes because they require moist environment in order to successfully sexually propagate themselves.

During sexual reproduction, the male sperm requires water to swim and meet the female egg. This means that without water, fertilization cannot take place and sexual propagation will become impossible. This is unlike advanced plants in which there are various means by which the pollen can travel to meet the ovule.

Hence, the group of plants in question hardly grow in dry biomes.

Answer:

D

Explanation:

It is transferred as heredity.

Molecules (DNA) that contain the information that determines eye color are passed from parents to children.

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The correct statement that accurately uses the diagrams to support the claim that an energy pyramid may not have the same shape as a pyramid of numbers for the same ecosystem is:  Higher trophic levels always contain fewer individuals, as shown in both the energy pyramid and the pyramid of numbers.

The correct answer is option D.

Both the energy pyramid and the pyramid of numbers illustrate the relationship between trophic levels in an ecosystem. The energy pyramid represents the flow of energy through different trophic levels, with each level consuming a portion of the energy from the level below. As energy is transferred, some energy is lost as heat, resulting in a decrease in available energy at higher trophic levels. This reduction in energy availability limits the number of organisms that can be supported at each level, leading to a decrease in the number of individuals as we move up the pyramid.

Similarly, the pyramid of numbers represents the number of individuals at each trophic level in the ecosystem. It typically follows a similar pattern to the energy pyramid, with a larger number of individuals at lower trophic levels and a decreasing number of individuals at higher trophic levels. This is because energy transfer is not 100% efficient, and as energy flows through the food chain, it supports a smaller number of organisms at each successive level.

The statement in option D accurately highlights the consistent pattern observed in both the energy pyramid and the pyramid of numbers, where higher trophic levels contain fewer individuals. This supports the claim that the shape of an energy pyramid may not necessarily match the shape of a pyramid of numbers, as the number of individuals in each trophic level is influenced by factors other than energy availability, such as predator-prey interactions and reproductive rates.

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Answer:plants grow

Explanation:te she said so

Cheetahs are one of my favorite creatures.

Cheetahs' physical characteristics, such as their speed, agility, and razor-sharp claws, have probably evolved over time to help them survive in their habitat.

Cheetahs are swift hunters that can pursue prey in wide-open savannahs. Their keen claws enable them to grip the ground while racing quickly.

Cheetahs may need to adjust to new environmental conditions in the future, including greater competition for food and water and habitat loss brought on by human activities.

They could need to change their hunting techniques, pick other prey, or even broaden their range to encompass new ecosystems.

Additionally, they might need to strengthen their defenses against illnesses and other environmental stresses in order to survive in a changing world.

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Answer:

Heavy growth in the incubator refers to the significant increase in the number of bacteria that were being cultured or grown in a controlled environment. The incubator refers to the device that provides the optimal conditions, such as temperature and humidity, for the growth of microorganisms.

Explanation:

When bacterial strains were incubated in candle and anaerobic jars, it means that the bacteria were placed in two different environments to observe their growth. The candle jar is used to create a low-oxygen environment, while the anaerobic jar creates a completely oxygen-free environment. The fact that there was heavy growth observed indicates that the bacteria thrived and multiplied rapidly in both the candle jar and anaerobic jar. This means that the bacterial strains were able to adapt and survive in low-oxygen or oxygen-free conditions. Overall, the observation of heavy growth in the incubator after incubating the bacterial strains in candle and anaerobic jars highlights the ability of these bacteria to flourish in specific environments with limited or no oxygen availability.

Answer:

The brain is a complex organ that controls thought, memory, emotion, touch, motor skills, vision, breathing, temperature, hunger and every process that regulates our body

Answer:

The six functions of the brain are:

1.thoughts and decisions

2.memories and emotions

3.perception of various sensations including pain

4.Regulations of organ function

5.speech and language function

6.movements(motor function),balance and coordination

Drought, plant die-off and wind leave a very vulnerable soil, which can be erosionated easly by wind because of low water retention (option B).

Answer:

B i hand it right

Explanation:

Answer:

Epideral Cells

Explanation:

The parts of a typical leaf include the upper and lower epidermis, the mesophyll, the vascular bundle(s) (veins), and the stomata. The upper and lower epidermal cells do not have chloroplasts, thus photosynthesis does not occur there.

Answer:

founder effect.

Explanation:

Answer:

The process of crossing over during Meiosis 1 happens in the Pachytene stage. The process itself is called Recombination and it occurs with the help of the enzyme Recombinase, the sites of crossing over are called Recombinant modules.

Explanation:

Answer:

C trust me in this you got this

Answer:

A threat to the natural restorative nature of the water cycle is acid rain. Acid rain is caused by certain gas emissions in our atmosphere. Volcanoes release some of these gases naturally.

Explanation:

=)

When lung volume increases, the intrapulmonary pressure decreases. This is due to the fact that the lungs are enclosed in the thoracic cavity

which is bounded by the diaphragm at the bottom and the ribcage on the sides. The diaphragm is the primary muscle of respiration, and when it contracts, it flattens and moves downward, increasing the volume of the thoracic cavity. This increase in volume causes the lungs to expand and pull away from the thoracic wall, resulting in a decrease in intrapulmonary pressure.

This decrease in pressure creates a pressure gradient between the atmosphere and the alveoli of the lungs, causing air to flow into the lungs. This process is known as inhalation, and it is the first step in the process of respiration. When lung volume decreases, the reverse happens, with an increase in intrapulmonary pressure causing air to flow out of the lungs during exhalation.

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