The diagram below shows a cross section of a bean seed. The function of part X in the bean seed is to:A) provide protection for the embryoB) provide nutrients for the embryoC) prevent mutations in the plantD) fight off infections in the plant

In the case of aquatic plants those that are totally submerged like seagrass, do photosynthesis as well as terrestrial plants, which need light carbon dioxide and expel oxygen. However, carbon dioxide in water dissolves so aquatic plants obtain it not in a gaseous way but in a dissolved way, so we can say that he correct answer is carbon dioxide.

What we see around three of the antibiotic disks is the area in which the antibiotics stopped the bacteria from growing. It's called a zone of inhibition and it creates an area where the bacteria haven't grown enough to be visible. So, in order to understand which is the most effective antibiotic we must look at its zones of inhibition and find the one with the biggest zone. Therefore, the correct answer is 3, as it is the one with the bigger zone of inhibition.

The correct answer is

Autonomic Nervous system

The nervous system is the command center of the organism's body. It interprets the messages it received from the sense organs. The brain is the control center of the nervous system. The cerebrum, medulla, and cerebellum are all parts of the brain.

The correct option is the first one, Pancreas is to Insulin, as Liver is to Glucagon. The analogy refers to the organ and compound they interact with. Pancreas produces glucagon which interacts with the liver, while liver produces insulin like growth factors, which interacts with the whole body, including the pancreas.

The chances of a non-carrier female and a man with sickle cell anemia having afflicted children would be 25%.

What is anemia?
When you have anaemia, your body does not create enough healthy red blood cells to supply your tissues with just enough oxygen. Being anaemic, or having low haemoglobin levels, can make you feel tired and fragile. Anemia can manifest itself in a variety of ways, each with its own set of causes. Anemia can be minor to severe, and it can be short-term or long-term. Anemia is often caused by a combination of factors. Consult a doctor if you suspect you have anaemia. It could be an indication of a serious sickness. Treatments for anaemia can range from taking vitamins to seeking medical help, depending on the underlying cause. A balanced, diverse diet may help you avoid some types of anaemia.

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The labeled part is URETHRA

The male urethra has a length of 18-22cm and it conveys urine from the urinary bladder to the exterior opening of perineum. It also provides an exit for the semen.

Answer: Structurally, plant and animal cells are very similar because they are both eukaryotic cells. They both contain membrane-bound organelles such as the nucleus, mitochondria, endoplasmic reticulum, golgi apparatus, lysosomes, and peroxisomes. Both also contain similar membranes, cytosol, and cytoskeletal elements.

Explanation:

*Oxygen is an essential element in the atmosphere that helps living organisms stay alive.

*Tress gives Earth oxygen through the process of photosynthesis. Plants, such as trees, capture sunlight and use it to split carbon dioxide and water. The product of it is sugar which releases oxygen into the atmosphere as a by-product of the process.

They are asking us the possible blood types for a child of parents with AB blood type.

This means that both parents have one allele for antigen A (Iᵃ) and one allele for antigen B (IᵃIᵇ):

Mother: IᵃIᵇ

Father: IᵃIᵇ

Just from that, the child cannot be type O, because there is no allele for not having any antigen (i).

Let's look at the Punnet's square:

As we can see, the child of this couple could have blood type A, B, or AB.

This means the right answer is D. I, Il, and Ill

As we know a gene is the minimal functional part of DNA and code for different traits, these can be proteins, RNA, or other type of regulators, so we can say that the correct option is the number 2

When the northern hemisphere is tilted toward the sun (90° North Pole - latitudes between the Equator and North Pole) it is experiencing summer.

Answer:

Genes

Explanation:

Although the parents both have dominant eyes.

The child could have eyes from the grandparents that skipped a generation.

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If both parents carry the recessive allele for blue eyes, a blue-eyed person with two brown-eyed parents is possible.

Each individual receives two copies of each gene, one from the mother and another from their biological father. In this situation, both parents have the pigmented iris dominant allele (BB or Bb), so both seem to have brown eyes. Both parents, however, may be heterozygous for of the recessive allele for the blue eye gene (Bb), which they could pass on to their offspring with a 25% chance.

If both parents carry the recessive gene, their children have a 25% chance of inheriting two copies of the recessive variant (bb) and so having blue eyes. The blue-eyed person in this scenario inherited an allele that is recessive from each parent, culminating in their blue eye colour.

Therefore, while it is less common for a person with two brown-eyed parents to have blue eyes, it is possible if both parents are carriers of the recessive allele.

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Okay. We can say that it is possible to identify the cycle cell stage the cell are getting through in the shown diagram. It's metaphase since the nuclear envelope denatures itself, and chromosomes start to get visible on the cytoplasm, aligning themselves along the equatorial cell axis.

The absence of nucleolus will affect the process of protein synthesis because r-RNA is required for protein formation and the synthesis of r-RNA occurs in the nucleolus.

Nucleolus is a small dense structure present inside the nucleus. It is site for r-RNA synthesis. Ribosome assembly also takes place inside the nucleolus. Nucleolus is also known to play part during cell's response to stress.

r-RNA is the ribosomal RNA. It is involved in the formation of ribosome along with some proteins. Ribosome is the most essential machinery for the synthesis of proteins. r-RNA belongs to the category of non-coding RNAs. r-RNA is considered to be a ribozyme.

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As we know an Operon is a genetic unit formed by a complex set of genes (polycistron c)that can self-regulate, itsis composed of 3 main factors: Promoter, operator, and regulatory gene. Therefore we can asaythat tthe correct answer is option C.

Remember that by definition, a heterotroph is an organism that cannot make its own food, but instead obtains its food by consuming other organisms. That is, a heterotroph is an organism that eats other organisms (plants or animals) for energy and nutrients. For this reason, heterotrophs are considered consumers.

We can conclude that the correct answer is:

The correct answers are:

A. heterotrophs

C. consumers

Photosynthesis is a mechanism of sugar production that is carried out by plant organisms possessing chloroplasts. Most animals cannot perform photosynthesis because they do not have chloroplasts, the great white shark is one of them.

On the other hand, respiration is a mechanism for obtaining energy that is performed by all organisms, which can be aerobic (in the presence of oxygen) or anaerobic (in the absence of oxygen). In cellular respiration, sugars such as glucose are metabolized to obtain energy.

The equation changes depending on the type of breathing that is performed, but in this case, the white shark performs aerobic breathing, so the equation would be:

Answer:

Photosynthesis is a sugar-production mechanism carried out by plant organisms possessing chloroplasts. Most animals cannot perform photosynthesis because they do not have chloroplasts, the great white shark is one of them.

On the other hand, respiration is a mechanism for obtaining energy performed by all organisms, which can be aerobic (in the presence of oxygen) or anaerobic (in the absence of oxygen). In cellular respiration, sugars such as glucose are metabolized to obtain energy.

The equation changes depending on the breathing that is performed, but in this case, the white shark performs aerobic breathing, so the equation would be:

Explanation:

Answer:

You can use your data to estimate the duration of each phase of the cell cycle. For example, if 8% of the cells were in prophase and the cell cycle was 10 hours long, then prophase would last 8% of 10 hours or 0.8 hours

explanation:

When Charles Darwin discover the various fish species on the island of Guadalupe house he was surprised to find so many different but related species in such a small geographical area.

The idea that best illustrate the correlation between competitive advantage in individuals traits in a particular environment is the principle of normal variation which states that:

Charles Darwin, full name Charles Robert Darwin, was an English scientist whose scientific theory of evolution by natural selection created the cornerstone of contemporary evolutionary research. He was born on February 12, 1809 in Shrewsbury, Shropshire, England and died on April 19, 1882 in Downe, Kent.

Darwin's most extraordinary contribution to science was to finish the Copernican Revolution by defining nature for biology as a system of matter in motion guided by natural laws. The genesis and adaptations of organisms were brought into the realm of science with Darwin's discovery of natural selection.

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Answer: Which example best describes a computer model that could be used to better understand the function of the brain?

A. A simulation predicting the paths of electrical impulses through the brain is the best example of a computer model that could be used to better understand the function of the brain.

Explanation:

In this simulation, a computer program would be used to create a virtual representation of the brain and simulate the movement of electrical impulses along different pathways. This can help researchers and scientists study how the brain processes information and how different areas of the brain communicate with each other.

By using this computer model, scientists can observe the patterns and pathways of electrical activity in the brain, which can provide valuable insights into how the brain functions. This can help in understanding various neurological disorders and developing treatments for them.

In science, the meaning of "theory" is different than the one we use commonly.

In the day-to-day, "theory" means a supposition or speculation, while a scientific theory is an explanation of a certain aspect of nature that is supported by evidence collected from several sources, and that has been tested repeatedly following the scientific method. A scientific theory is considered to be a truth, which is the case for natural selection and evolution.

Animal cells and plant cells are eukaryotic cells, that is, their genetic material (DNA) is stored within the nucleus.

These two types of cells, even though they are eukaryotes, still have some differences.

Plant cells have vacuole, chloroplast, and cell wall (these structures are absent in animal cells). Mitochondria are an organelle that is present in both animal and plant cells.

The correct statements are A and B:

A) Both plant and animal cells can have mitochondria;

B) In animal cells, chromosomes contain the master plan for cellular activities and cell development;

Statement "C" is incorrect because both animal and plant cells have a nucleus.

The correct answer is the letter C: an insulated body covering, such as fur or feathers

Endotherms mainly use internally generated heat in order to maintain body temperature. This will cause their body temperature tends to stay steady regardless of the environment. On the other hand, ectotherms depend mainly on external heat sources and their body temperature changes with the temperature of the environment.

Examples of endotherms are birds and mammals

Examples of ectotherms are fishes, amphibians, reptiles, and invertebrates.

The main energy source in humans is glucose, which is a monosaccharide. Through cellular respiration, ATP is produced from glucose. ATP is the energy currency of biochemical reactions in the human body. On the other hand, a polymer of this monosaccharide (beta glucose) is cellulose, which is found in plants as part of their cell wall.

We can conclude that the correct answer is:

C. carbohydrates

The peripheral nervous system transmits information between the central nervous system and the rest of the body. It is divided into two: the Somatic Nervous system, which receives and relays stimulus to the central nervous system, and the Autonomic Nervous system, which regulates the involuntary activities of the body.

ANSWER: D. somatic nervous system and autonomic nervous system

Answer: Incomplete Dominance

Explanation:

Incomplete dominance is described by a phenotype that is not completely dominant over another. Therefore, it will be a "blending" of colors in the case of this question, therefore the petals are pink.

wearing sunglasses to protect eyes from UV ray is reasponse to an external stimuli.

the UV rays from the sun are the external stimuli, while the oter option are internal stimuli

Answer:

ossification Center

Explanation:

American diet consists of excess sodium, saturated fat, refined grains, and calories from solid fats and added sugars while Inuit diet consists mainly marine foods like shell fish , whales or birds animals mainly duck bear and plants  that include roots and berries .

Inuit diet is not healthier then American diet , this kind of diet mostly consists of non vegetarian food , that can be eaten raw to supply essential nutrients like whale skin , seal brain . this diet is generally taken by the people who live in frozen snow covered area .

On the other hand American diet includes Fried foods,  Processed foods, Processed meats, Refined grains  and Red meat.

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