What are complex traits affected by?

Answer: The food chain starts when krill eat phytoplankton. The krill is eaten by whales, squid and other fishes. The squid is then eaten by penguins and other animals. There are other animals that eat squid. Like the orcas or killer whales.

Answer:

C :    Sternum

Explanation:

The collarbone, also known as the clavicle, is a long, narrow, flat bone that is located at the front of the chest.

Correct option is D) collarbone.

It connects with the scapula (shoulder blade) at its inner end and the sternum (breastbone) at its outer end. The collarbone helps to stabilize and support the shoulder, and provides a point of attachment for many muscles, ligaments, and tendons of the shoulder and arm.

It also protects the underlying vessels and nerves within the thoracic cavity. The collarbone is one of the most commonly fractured bones in the body, and can be easily damaged during falls, car accidents, and physical contact sports.

Treatment for a fractured collarbone typically includes immobilization of the affected arm, pain relief medications, and physical therapy.

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Answer:

Phytoplankton production is necessary to begin a food web in an ocean ecosystem.

Explanation: Hope it helps you :)))))))

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Answer:

Transportation of food and water takes place through xylem and phloem in the plants. The water from the roots is transported through xylem. Phloem on other hand transports the food prepared in the leaves to other parts of the plants.

Answer:

Glucose and oxygen react together in cells to produce carbon dioxide and water which  releases energy.

Explanation:

Oxygen from the air is needed for it to work. Energy is released in the reaction. The mitochondria , found in the cell cytoplasm, are where most respiration happens

Answer:

Cellular respiration is this process in which oxygen and glucose are used to create ATP, carbon dioxide, and water. ATP, carbon dioxide, and water are all products of this process because they are what is created

The reactants or requirements are oxygen and glucose.

While the products are carbon dioxide and water.

Explanation:

Answer:

An Organelle is a specific structure within a cell, and there are many different types of organelles. Organelles are also called vesicles within a cell. Organelles are all membrane-bound

Answer:

2) B

3) D

I believe that these are the answers, I hope this helps!

The fluid portion of whole blood, its matrix, is commonly called plasma  Blood Tissue Blood is a connective tissue that has a fluid matrix, called plasma and no fibers.

MATRIX Connective tissue matrix is ​​composed of matrix and fibers. In normal connective tissue, the basal substance consists of water and is stabilized by glycosaminoglycans, proteoglycans, and glycoproteins. Bone contains minerals in its basic substance. In blood, the basic substance is liquid plasma.

Connective tissue is composed of cells and an extracellular matrix. The extracellular matrix is ​​composed of proteins secreted and organized by the cells within the extracellular matrix and fibers within the polysaccharide matrix. The ECM of the extracellular matrix is ​​a three-dimensional network composed of extracellular macromolecules and minerals such as collagen, enzymes, glycoproteins, and hydroxyapatite that provide structural and biochemical support to the surrounding cells.

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Meiosis and mitosis are similar because they both have prophase and an anaphase. Thus, option A is correct.

Meiosis is a reductional type of cell division in which half amount of genetic material is received by each daughter cells as parent cell. It is special type of cell division in which sexually reproducing organisms in which germ cells that are sperm or egg cells are produced.

Mitosis in contrast is somatic cell division in which each daughter cell receive the same number of chromosomes and which are similar to parent.

But, both the meiosis and mitosis processes occur during M phase of cell cycle. In prophase of both, condensing of chromosomes and separation of centrioles occur. So, in both the processes have similar steps called prophase and anaphase. Therefore, option A is correct.  

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Answer:

Researchers broke down sustainable development into categories such as carbon dioxide emissions and use of natural resources like nitrogen, phosphorus and clean water. Bad news, Earthlings: It may be possible for everyone on the planet to live a “good” life.

Explanation:

Sustainability improves the quality of our lives, protects our ecosystem and preserves natural resources for future generations.

Sustainable living means understanding how our lifestyle choices impact the world around us and finding ways for everyone to live better and lighter. Applying a 'people lens' to sustainability is new, timely and opportunities are great.

Answer:

D.) C₆H₁₂O₆ + 6 O₂

Explanation:

The balanced chemical equation for photosynthesis:

6 CO₂ + 6 H₂O ------> C₆H₁₂O₆ + 6 O₂

The reactants are on the left side of the reaction, and the products are on the right side. The reactants consist of carbon dioxide and water. The products are glucose and oxygen.

The products represented in the chemical equation for photosynthesis is C6H12O6 + 60₂. Therefore, option (D) is correct.

Photosynthesis is a cycle utilized by plants and different life forms to change over light energy into substance energy that, through cell breath, can later be delivered to fuel the creature's exercises.

Trees and plants use energy from the sun and carbon dioxide in the air to make food through a natural process called photosynthesis. The plants and trees that make up forests play a role in the production of oxygen by storing carbon both above and below the ground.

Instances of photosynthesizing organic entities: Phytoplankton photosynthesis is basically carried out by green plants, cyanobacteria and various kinds of algae.

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Answer:

Sailfish

Explanation:

Answer:

Sailfish.

Explanation:

The fluid mosaic model of the plasma membrane is best described as a lipid bilayer with protein molecules dispersed within it (option c).

The fluid mosaic model represents the structure of the plasma membrane, comprising a lipid bilayer where protein molecules are dispersed.

This model illustrates the dynamic nature of the membrane, as lipids and proteins can move laterally within the bilayer, providing flexibility and functionality.

The lipid bilayer consists of hydrophilic phosphate heads facing outward and hydrophobic fatty acid tails facing inward, forming a barrier to protect the cell.

Embedded proteins, including transporters, receptors, and enzymes, play crucial roles in cellular processes and communication, making the fluid mosaic model an essential concept in understanding cell membrane structure and function.

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Answer:

Typically, scientists communicate their work within the scientific community by writing and publishing research articles and presenting posters and oral communication of scientific conferences.

Answer:

Scientists often communicate their research results in three general ways. One is to publish their results in peer-reviewed journals that can be ready by other scientists. Two is to present their results at national and international conferences where other scientists can listen to presentations.

Answer:

photosynthesis occur in the chloroplasts ,cellular respiration occurs in the mitochondria

Answer:

1. Carbon, water, nitrogen, phosphorus

2. phosphorus

3. true

4. false, there are many non-living things made of carbon, like your clothes and furniture.

3’ TACGGCTTAACC 5’ based on knowledge of DNA replication, the correct complementary strand synthesized by DNA polymerase is

5’ ATGCCGAATTGG 3’ (option -c) is correct answer.

There are three main steps in the replication process: priming the template strand, assembly of the new DNA segment, and opening of the double helix and separation of the DNA strands. The DNA double helix's two strands uncoil during separation at a specific spot known as the origin.

Additionally, in vitro DNA replication (DNA amplification) is possible (artificially, outside a cell). Starting DNA synthesis at recognized sequences in a template DNA molecule is possible using artificial DNA primers and cell-isolated DNA polymerases.

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The dark, circular ribosome assembly begins is where  the nucleolus ribsome assembly begins.The thread-like chromosomes are spread throughout the nucleus in the form of DNA wrapped tightly by proteins called histones. The membrane of the nucleus is dotted with  rough endoplasmic reticulum and is dotted with ribosomes.

Processing and meeting start withinside the nucleolus, retain withinside the nucleoplasm and are finished withinside the cytoplasm. The outer membrane of the nucleus is the membrane dealing with the cytoplasm. In mammals, the outer nuclear membrane is non-stop in lots of locations with the difficult endoplasmic reticulum and is dotted with ribosomes.

The thread-like shape placed withinside the nucleus of cells of flora and animals is referred to as a chromosome. The time period chromosome became first coined with the aid of using German anatomist Henrich Wilhelm Waldeyer in 1888. Each chromosome consists of DNA wrapped tightly with the aid of using proteins referred to as histones.

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Answer:

1.)The dark, circular Nucleolus is where ribosome assembly begins.

2.)The thread-like chromosomes are spread throughout the nucleus in the form of Chromatin

3.)The membrane of the nucleus is dotted with Nuclear Pores to allow material in and out.

Explanation:

If a male inherits a dysfunctional allele that prevents Sertoli cells from binding to follicle-stimulating hormone (FSH), they will not be able to produce ABP. FSH is necessary for the development and function of Sertoli cells, which produce ABP, among other things.

Androgen-binding hormone (ABP) is produced by Sertoli cells in the testes and is important for the development and maintenance of male reproductive organs. It binds to androgens, such as testosterone, and helps to concentrate them in the testes, where they are needed for spermatogenesis.

If a male inherits a dysfunctional allele that prevents Sertoli cells from binding to follicle-stimulating hormone (FSH), they will not be able to produce ABP. FSH is necessary for the development and function of Sertoli cells, which produce ABP, among other things.

As a result, the male may experience a range of symptoms related to reduced androgen levels, including:

In summary, the inability of Sertoli cells to bind to FSH and produce ABP can have significant consequences for male reproductive and sexual development.

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Answer:

The type of tissue that covers the body surface, lines organs and cavities is called epithelial tissue or epithelium. It forms the covering on all internal and external surfaces of your body, lines body cavities and hollow organs, and is the major tissue in glands.

As a result of a fracture to the distal end of the humerus, all of the following might be completely paralyzed, EXCEPT: Flexor pollicis longus.

The flexor pollicis longus (FPL) is a muscle located in the forearm that acts on the thumb. It is one of the deep muscles of the anterior compartment of the forearm and originates from the anterior surface of the radius and the interosseous membrane.

The reason is that the flexor pollicis longus is not directly connected to the humerus, but rather, it originates from the radius and interosseous membrane. The other muscles mentioned all have their origins in the humerus and may be affected by such a fracture.

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A substance's LD50 (median lethal dose) is the amount necessary to kill 50% of an animal population. To determine the LD50 of diclofenac in rabbits, an experiment.

with a group of rabbits receiving varying dosages of the chemical and recording the number of fatalities would be required. The information gathered would then be used to calculate the dose at which half of the rabbits died. It is crucial to remember that using animals in trials to determine LD50 is considered unethical by many organizations and is typically discouraged. Furthermore, LD50 estimates can vary widely between species and may not correctly reflect a substance's toxicity in humans. In vitro toxicity testing is an alternative way.

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DNA is a macromolecule composed of monomers called nucleotides.

Nucleotides consist of three components: a sugar molecule (deoxyribose), a phosphate group, and a nitrogenous base. The four nitrogenous bases are adenine, thymine, guanine, and cytosine, and it is the sequence of these bases that make up the genetic code. The two strands of DNA are held together by hydrogen bonds between the complementary nitrogenous bases, creating the famous double-helix structure. Each nucleotide is connected by a sugar-phosphate backbone, and together, the two strands form a DNA molecule. The sequence of the four nitrogenous bases determines the specific instructions contained in the DNA molecule.

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The discovery that would challenge the validity of this cladogram would be a fossil of a fern more than 425 million years old. That is option D.

A cladogram is defined as the structural representation of organic of the same species that shares similar morphological characteristics.

The importance of cladogram to a biologist is to provide a clear and distinct relationships that is existing between these organisms.

The fossil of a fern more than 425 million years old must have shown variations in their morphology which will probably challenge the validity of the cladogram shown above.

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The sinoatrial node is very important component of the heart's conduction system that situated close to the site of superior vena cava connection on the posterior wall of the right atrium (SA node). The SA node, which is made up of autorhythmic cells, acts as the heart's "pacemaker" by producing the action potentials that cause contraction to begin.

The SA node, which is made up of autorhythmic cells, acts as the heart's "pacemaker" by producing the action potentials that cause contraction to begin. Bachman's bundle, a unique band of swiftly conducting tissue that quickly transmits the action potential to the left atrium, is hypothesised to help the two atria contract concurrently.

The atrioventricular node (AV node), which is situated in the right atrium's floor close to the interatrial septum, senses the action potential. The internodal pathways are once again specialised conduction routes that swiftly transfer the action potentials from the SA node to the AV node. The action potential is then "delayed" by the AV node for around 0.15 seconds, enabling the atria to contract before the ventricles.

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Answer:

Moose populations would increase as weak moose are killed allowing stronger moose to give birth or immigrate into the area.

Explanation is that I believe this is the right answer

The statement predicts how the stream's ecosystem will most likely be impacted is the number of fish in the stream will decrease.​ Thus, option D is correct.

The acidity of the water in a stream is indicated by its pH. Historically, a certain stream has had a pH of 6.0. Acid rain has caused the stream's pH to become 4.8.The flow rate of the stream will decrease. The number of fish in the stream will increase and the number of fish in the stream will decrease.​

Acid rain is a form of rain with high concentration of hydrogen ions and is acidic in nature. pH of these rains is low and pH is the negative logarithmic of hydrogen ion concentration. It is known as power of hydrogen.

The animal which has the lowest value of pH will be able to tolerate the acid rain more and will be last to die. From the tolerance range of the animals, frogs has the lowest pH for survival which is 4 and it can bear more acid rain than the rest of the animals will be the last to die.

Therefore, The statement predicts how the stream's ecosystem will most likely be impacted is the number of fish in the stream will decrease.​ Thus, option D is correct.

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Answer: 45 J

Explanation:

The formula for work is force x distance.

W = fd

W = (30 N)(1.5 m)

W = 45 J