Select all features of ginkgophytes. multiple select question.

A. they have lost the gametophyte generation.

B. they produce sperm with flagella.

C. they produce fruits.

D. they are dioecious.

E. they produce seeds.

Answer:

3.  (a) the amount of energy found in the fatty acid.

4. (d) all of the above

5. (c) DNA is how inherited characteristics are passed from one generation to the next.

6. (b) lipid

7. (c) cellulose

Explanation:

3. Saturated fats have more energy due to the double bonds that are found in the molecules.

4. Different proteins have various and roles within the cell.

5. Each nucleotide, in turn, is made up of a nitrogenous base (not carbon base), a pentose sugar, and a phosphate. DNA is a double chain.

6. Biological membranes consist of a continuous double layer of lipid molecules in which membrane proteins are embedded.

7. The cell wall is composed of a network of cellulose microfibrils and cross-linking glycans embedded in a highly cross-linked matrix of pectin polysaccharides.

Digestive enzymes convert the nutrients in food into a soluble form that are then absorbed into the circulatory system.

1. Role of Digestive System: The digestive system is responsible for breaking down food into smaller molecules that can be absorbed and utilized by the body. It consists of various organs, including the mouth, esophagus, stomach, small intestine, and large intestine.

2. Digestive Enzymes: Digestive enzymes play a crucial role in the digestive process. These enzymes are produced by various organs in the digestive system, such as the salivary glands, stomach, pancreas, and small intestine. Each enzyme has a specific function and targets a particular type of nutrient.

3. Conversion of Nutrients: When we consume food, digestive enzymes are released and act on the complex molecules present in the food. These enzymes break down carbohydrates into simple sugars, proteins into amino acids, and fats into fatty acids and glycerol.

4. Soluble Form: The digestive enzymes convert these complex nutrients into a soluble form, which means they are broken down into small molecules that can dissolve in water. This process enables easy absorption and transport of nutrients across the walls of the digestive tract.

5. Absorption into the Circulatory System: Once the nutrients are in a soluble form, they are absorbed into the circulatory system through the walls of the small intestine. The circulatory system, specifically the blood vessels, carries these nutrients to various cells and tissues throughout the body, providing them with the necessary energy and building blocks for growth, repair, and maintenance.

In summary, digestive enzymes convert the nutrients in food into a soluble form, breaking them down into smaller molecules that can dissolve in water. These soluble nutrients are then absorbed into the circulatory system, where they are transported to different parts of the body to support essential functions.

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Lipids are responsible for segmenting the inside of a cell into different compartments.

Any of a wide range of organic substances that are classified together as lipids because they do not significantly interact with water, such as fats, oils, hormones, and some membrane components. The adipose cells, which act as an organism's energy storage depot and thermal insulator, sequester one form of lipid, the triglycerides, as fat. Some lipids, like steroid hormones, transmit messages between biochemical systems inside a single cell whereas others act as chemical messengers between cells, tissues, and organs. Organelles (structures within cells) and cell membranes are tiny thin structures made of two layers of phospholipid molecules. Membranes serve to compartmentalise the interior of cells into structures that perform specific tasks and to isolate individual cells from their surroundings. This compartmentalising function is so significant that membranes and the lipids that make them up must have been crucial to the beginning of life.

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Answer:

During active transport, substances move against the concentration gradient, from an area of low concentration to an area of high concentration. This process is “active” because it requires the use of energy (usually in the form of ATP). It is the opposite of passive transport.

Answer:

carrying capacity

Explanation:

Mendel then combined these plant lines for purebreeding and noted the characteristics of the hybrid offspring. He discovered that every F1 hybrid of the first generation resembled one of the mother plants.

Mendel observed that the F1 generation produced by hybridizing true-breeding  progeny plants only exhibited one feature of a characteristic. A true-breeding purple-flowering plant, for instance, might have been crossed with a truthful white-flowering plant.

However, Mendel found that crossing two distinct purebred plant varieties resulted in offspring that resembled either of the parents, not a combination of the two.

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Answer:c

Explanation: edg

Answer:

Solar energy is any type of energy generated by the sun. Solar energy is created by nuclear fusion that takes place in the sun. Fusion occurs when protons of hydrogen atoms violently collide in the sun's core and fuse to create a helium atom.

Answer:

cellulose

Explanation:

Explanation:

Hi, so this diagram is obviously a diagram of a eukaryotic cell. (It's not prokaryotic since there are many organelles, and there is a nucleus). From more observing, we see that it's a plant cell (There are cell walls around the cell, which animals cells don't have).

So anyways, onto the labeling.

So beforehand, we saw that this is a plant cell, which helps us in labeling. Plant cells have certain organelles animal cells don't have.

I bolded the answers, and I started with the top left box and went clockwise around the diagram.

For the label top left next to the word 'Cell', you would put plant, or eukaryotic. I would say plant, since that would be more specific.

Next to the word 'Cell', there is another label pointing to the purple structure. This is the Golgi apparatus, where vesicles drop off proteins and other substances for modification. (Think of it like the 'packaging center'). You can tell because the 'purple structures' are not connected.

Next to that label we have another one pointing to the clear and bluish big blobby like structure. That is the vacuole. The vacuole stores wastes, water, and can enlarge or become smaller.

Next to that box we have another one pointing to the blue structure. The answer is the nucleus. Just think of it as the 'directory' of the cell.

After, next to the previous box, on the top right, that box is pointing to a purple structure. Light purple actually. This is the smooth endoplasmic reticulum, or ER. It's usually next to the nucleus and the rough ER, which we'll talk about afterwards.

On the box below the previous, pointing to the small dots, those are the ribosomes. To clarify, ribosomes are NOT organelles. They make proteins for the cell, and can be found on the rough ER.

Coming to the bottom right, that box is pointing to a red structure, or the rough ER (endoplasmic reticulum). They have ribosomes on their surface, unlike the smooth ER.

For the next box, it would be the cell wall. I thought it was the cell membrane at first, but no it isn't. The things sticking out from the diagram are also cell walls, but from other plant cells.

The next box points to the green organelle, or the chloroplast. It contains chlorophylls which give the green color to plants.

On the next box we have it pointing to the yellow structure(light yellow). I'm not sure what to call it, but that is the cell membrane. This is different from the cell wall, because it surrounds the whole cell. (If you trace the very outer light green wall, you will see that it doesn't surround the whole cell).

The box pointing to the yellow structure with the blue lines inside is the mitochondria. It is the 'powerhouse of the cell', where cellular respiration takes place.

The next box is pointing to the light green space. That is the cytoplasm, which consists of the cytosol. It's a jelly like substance that is mostly consisted of water.

Finally, for the last box, I am not really sure what it is, as it looks like it is also pointing to the cell membrane. I would answer plasma membrane. It's composed of phospholipids and other proteins.

Hopefully this helps you!

Yes. It`s been common to read and even watch news about how plastic has affected the environment, wildlife and human health. Also, many initiatives have been taken, such as the suspension of the use of straws in restaurants, for example. That shows that more and more people are aware of the damage plastic can cause.

Answer:

A. Clams and mussels

Cell theory has 3 basic points: Cells are the basic unit of all living things. The tiniest living organism that is capable of carrying out all life's duties is the cell.

According to the unified cell theory, each living entity is made up of one or more cells, each cell is the building block of life, and new cells develop from existing cells. this idea benefited greatly by the contributions of Rudolf Virchow.

The G1/S checkpoint, the intra-S checkpoint, and the G2/M checkpoint are the three primary cell cycle checkpoints [60]. Cyclin-dependent kinases control how the cell cycle progresses through its many stages.

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Answer:

B. The dog would not have any energy left for activity

Explanation:

A dog paddles across a lake, and if the hydrogen ion pumps in its mitochondria stopped functioning, then the dog would not have any energy left for activity, which is present in option B.

When a dog paddles in a lake, it requires energy, and the mitochondria are considered the powerhouse of the cell as they produce ATP by creating the hydrogen ion gradient across the inner cell membrane of the mitochondria. If the hydrogen ion pump fails, ATP and energy are not produced, and the dog is unable to paddle in the lake. The energy is created due to the gradient, and later, the hydrogen ions enter the matrix through the ATP synthase.

Hence, A dog paddles across a lake, and if the hydrogen ion pumps in its mitochondria stopped functioning, then the dog would not have any energy left for activity, which is present in option B.

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Answer:

Huskies were bred by the Chukchi people in Northeast Asia and Siberia to be sled dogs, reindeer-herding dogs, multi-purpose workers, companion dogs and guard dogs. Today, Huskies are primarily family companions, though many are still pulling sleds in Alaska and other snowy regions.

Explanation:

Review a credible scientific website about dog breeding the specific traits that people selected when they developed this breed, and explain why people found these traits beneficial. Huskies were bred by the Chukchi people in Northeast Asia and Siberia to be sled dogs, reindeer-herding dogs, multi-purpose workers, companion dogs and guard dogs.

The website of the company has been all web sites which is operated by any occupied company or via any occupied company conducts the business. Any business website has been website that is designed in such a way that it can represent the identity of a business on the internet.

Company's name and fame id totally depends upon advertisement and its products and websites play an important role in order to make company popular and due to this reason company used the website or designed the website in unique and knowledgeable manner.

Therefore, Review a credible scientific website about dog breeding the specific traits that people selected when they developed this breed, and explain why people found these traits beneficial. Huskies were bred by the Chukchi people in Northeast Asia and Siberia to be sled dogs, reindeer-herding dogs, multi-purpose workers, companion dogs and guard dogs.

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Answer:

C: they threaten biodiversity.

They don`t always pollute because they just eat or destroy things in the environment. (Thus "invasive")

Not all are predators. My state has an invasive form or blue reed river algae that kills fish.

Being nonrenewable is mostly irrelevant to the environment.

Hope that helps.

Invasive specie threaten biodiversity hence, they are dangerous to the environment. Thus, option C is correct.

An invasive organism which is not native to the environment but cause ecological or economical harm to the environment are called as invasive species. For example water hyacinth, this plant is native to South America but has spreaded over many places in world and became invasive species. This is an aquatic plant, which spreads quickly in water and choke out native wildlife.

Invasive species can spread through fishing, ships, and accidental release. It is major threat to ecosystem because it can be responsible for extinction of plants and animals, reducing biodiversity, alteration of habitats, and can compete with organisms for limited food in the native area.  

Therefore, invasive species threaten biodiversity and hence, option C is correct.

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Many Body segments are very wholesome are essential such as a segment for digestion and a segment for reproduction.

In the above case, it would be more accurate to say that many bodily systems are essential for our overall health and well-being, and they each play important roles in maintaining our bodily functions. For example, the digestive system is responsible for breaking down food and absorbing nutrients, while the reproductive system is responsible for producing and delivering offspring.

Therefore, It is important to note that while some bodily functions or segments may be considered more "wholesome" than others, each system is necessary and contributes to the overall functioning of the body. So, rather than categorizing them as wholesome or not, it's more useful to think of them as essential components of a complex and interconnected system.

P.S. Question seems incomplete and general definition is given.

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Answer:

A theory is a group of hypotheses that prove a law is true.

Explanation:

A theory is an idea based on principles. A hypothesis is an explanation with limited evidence.  Laws are the system of rules indicated for each country.

Answer:

B

Explanation:

A 40X objective lens is also known as high power lens.

The high-powered objective lens, sometimes known as a "high dry" lens, is perfect for spotting small features in a specimen sample. You may see an extremely detailed image of the specimen on your slide thanks to a high-power objective lens and a 10x eyepiece working together to produce a total magnification of 400x.

Oblique lenses are the interchangeable lenses that come with the majority of compound microscopes. The most popular objective lenses include magnification powers of 4x, 10x, 40x, and 100x, which are also called as scanning, low power, high power, and (usually) oil immersion objectives, respectively. Objective lenses are available in a variety of magnification powers.

Therefore, correct answer is (b) high power lens

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Just to help the guy trying to get brainliest, he actually did a good job

Before bacteria to multiply, their cell size must increase. Bacteria increase as the simulation progresses because they are in a fertile habitat.

Antibiotics destroy critical bacterial cell structures or functions. This either kills the organism or prevents it from developing. Based on these findings, an antibiotic is characterized as either bactericidal or bacteriostatic.

Antibiotic use has been linked to an increase in inheritable mechanisms such mutation, recombination, gene transfer, and prophage production 112-121. These changes must, of course, be fixed for evolution to be relevant, and fixation can only occur when bacteria are selected for.

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The adaptation of significantly reducing the rate of metabolism in the European salamander, Proteus anguinus, evolved through natural selection as individuals with this trait had higher survival rates and reproductive success in environments with limited food supply.

The process of natural selection led to the adaptation of the European salamander, Proteus anguinus, to significantly reduce its rate of metabolism when food is scarce. Natural selection is the mechanism by which individuals with advantageous traits for their environment have higher survival rates and reproductive success, leading to the increased prevalence of those traits in subsequent generations.

In the case of the salamander, the limited food supply in underground caves created a selective pressure favoring individuals that could conserve energy during periods of food scarcity. Salamanders with the ability to reduce their metabolic rate had a higher chance of survival as they could survive longer without food, making them more likely to reproduce and pass on this adaptive trait to their offspring.

Over time, through the process of natural selection, the individuals with the ability to lower their metabolic rate became more prevalent in the salamander population. This adaptation allowed them to better cope with the limited food supply in the caves, maximizing their chances of survival and reproductive success.

Therefore, the ability to significantly reduce the rate of metabolism in response to scarce food evolved in the salamander population as a result of natural selection, enabling them to thrive in their underground cave habitats.

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Answer:

The simulation represents real life make a baby by showing the probabilities that the child has of inheriting a trait and how the expression of them works. That is to say, the dominant and recessive traits. It does not represent reality in the sense that gene inheritance and expression are not determined by the flip of a coin or the absence of crossing over, which gives gen diversity.

Explanation:

The make a baby lab explains in a simple way how inheritance and dominance of one gen over another works. It shows that there are probabilities to inherit a trait by using coin flipping as an example. Even though the process is more complex, the idea of how dominant genes, recessive genes, and inheritance from both parents work is explained simply with this activity.

The way that this simulation does not represent real life making a baby lab is that; in regards to the dominant and recessive traits. They do not represent true reality in the aspect that gene inheritance and expression are not truly determined by the flip of a coin or the absence of crossing over, that the simulation used to give proof of gene diversity.

The simulation being referred to in this question is called "Create a body Lab".

This simulation tries to prove the inheritance and dominance of one gene over another one. That is dominant gene over the recessive gene.

This simulation uses a coin flipping technique to make us know that the probabilities of one inherit a trait.

Now, the way that this simulation does not represent real life making a baby lab is that in regards to the dominant and recessive traits. They do not represent true reality in the aspect that gene inheritance and expression are not truly determined by the flip of a coin or the absence of crossing over, that the simulation used to give proof of gene diversity.

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Cells with class I major histocompatibility complex (MHC) proteins that contain a foreign antigen will be destroyed after being bounded by cytotoxic t-cells.

Major Histocompatibility Complex (MHC), a collection of genes that produce proteins located on the cell surfaces that aid in the immune system's ability to identify foreign objects. The higher vertebrates include MHC proteins. The complex is also known as the human leukocyte antigen (HLA) system in humans. The purpose of MHC molecules is to bind and display pathogen-derived peptide fragments on the cell surface for recognition by the proper T lymphocytes.

A particular class of immune cell that is capable of eliminating specific types of cells, such as virus-infected cells, cancer cells, and alien cells. To destroy cancer cells, cytotoxic T cells can be isolated from other blood cells, cultured in a lab, and then administered to a patient.

Thus from above conclusion we can say that cells with class I major histocompatibility complex (MHC) proteins that contain a foreign antigen will be destroyed after being bounded by cytotoxic t-cells.

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Elasticity of demand measures the responsiveness of quantity demanded to changes in price. Demand is inelastic if a change in price has little or no effect on quantity demanded.

If price is increased, the quantity demanded doesn't change and total revenue increases.The coefficient of elasticity for inelastic demand is usually less than one.

Demand is elastic if a small change in price leads to a greater change in quantity demanded. The coefficient of elasticity for elastic demand is usually greater than 1. If price is increased, the quantity demanded falls and total revenue falls.

Demand in unitary elastic if a change in price has the same proportional effect on quantity demanded. The coefficient of elasticity for unitary demand is 1.

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The genetic tool that is most useful in diagnosing Down syndrome is a karyotype analysis. This test examines the number and structure of chromosomes in a person's cells, and can detect the presence of an extra copy of chromosome 21, which is the underlying cause of Down syndrome.

During a karyotype analysis, a sample of cells, typically obtained from a blood sample, is cultured and then stained to make the chromosomes visible. The chromosomes are then examined under a microscope, and their number and structure are analyzed to detect any abnormalities. In the case of Down syndrome, the analysis would reveal the presence of three copies of chromosome 21, rather than the usual two.

Other genetic tools, such as fluorescence in situ hybridization (FISH) or quantitative polymerase chain reaction (qPCR) assays, may also be used to confirm a diagnosis of Down syndrome, but karyotype analysis is considered the gold standard for diagnosis.

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