what is a basic unit of classification in living organisms​

Answer:

mine is a sheep

Explanation:

they’re cuddly and innocent, but my favorite part about them is that they stick together

Answer: a) The single base change mutation occurs at the beta chain of haemoglobin when glutamic acid is replaced with valine.

b) Sickle Cell Anemia is inherited in an autosomal recessive pattern.

Explanation:

Haemoglobin is a protein found in the red blood cells whose main function is to transport oxygen. Sickle Cell Anemia is a disorder caused by a base change in DNA beta chain of haemoglobin. The amino acid valine is substituted for glutamic acid at one point in each of the two beta chains. When this type of hemoglobin is exposed to low oxygen, it forms elongated crystals inside the red blood cells that are sometimes 15 micrometers in length. These make it almost impossible for the cell to pass through many small capillaries, and the spiked ends of the crystals are likely to rupture the cell membrane, leading to sickle cell anemia.

In describing the inheritance patterns of sickle cell anaemia, it is of autosomal recessive pattern. This means that the parent of the affected individual both carry one copy of the mutated gene, but they typically do not show signs and symptoms of the condition. The gene for normal red blood cell is dominant over the gene for abnormal red blood cell which is said to be recessive. A person who is a stickler should have the genotype SS.

Answer:

Nobody was there to water them so they all died. No I do not think they could be revived or recover.

Explanation:

none needed

Answer:

The molecule contains carbon double bonds.

Explanation:

took the test

Answer:

Mosses play important roles in filtering and storing the water and nutrients that forests need to survive and grow. Mosses are important because they help regulate water in the forest ecosystem by slowly absorbing and releasing rainfall while keeping nutrients in place. Their nutrients and water come from rainfall or running water.

Answer: 1. true

2. false

Explanation:

1. Chrysophytes can be defined as the algae that can be found in the lakes. They have photosynthetic pigments carotenoids which impart golden yellow color to these algae. They are unicellular and also have flagellum that help them in movement in water.

2. Diatoms are unicellular algae. They appear as single individual cells or may appear in colonies with other cells. They can take up any shape based on their alignment pattern. Each cell is surrounded by cell wall that is composed of silica called as frustule. They can be found in fresh or marine water.

Answer:

The answer, I believe, is a.

Explanation:

Observations of fossils came later I believe. :)

Answer:

The four nitrogen bases found in DNA are adenine, cytosine, guanine, and thymine. Each of these bases are often abbreviated a single letter: A (adenine), C (cytosine), G (guanine), T (thymine).

Explanation:

The four nitrogen bases found in DNA are adenine, cytosine, guanine, and thymine. Each of these bases are often abbreviated a single letter: A (adenine), C (cytosine), G (guanine), T (thymine).

According to the base-pairing rule, the one purine binds with a specific pyrimidine always, the purine adenine (A) only pairs with the pyrimidine thymine (T)  and similarly, the purine guanine (G) only pairs with the pyrimidine cytosine (C) in DNA, and in RNA the purine adenine (A) binds with the only uracil.

The bases are Adenine, guanine, guanine, cytosine, thymine,  adenine the string of their base pair would be Thymine, cytosine, cytosine, guanine, adenine, thymine.

DNA stands for Deoxyribonucleic acid. It is made up of two complementary strands. There are four nitrogenous base present in the DNA strand. These are-

Adenine (A), thymine (T), guanine (G), and cytosine (C). These bases pair with bases on the complemenatry strand just according to the  Watson and Crick base pairing ( A=T, G ≡ C ). Uracil is another nitrogenous base. But it is present in RNA in place of Thymine.

Thus, bases found in the DNA are Adenine, thymine, guanine, cytosine.

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Answer:

decreased pollution

Explanation:

The article

Answer:

So

Explanation:

What is the question here

Answer:

1. It creates oxygen for humans and animals to breath.

2. It creates food for humans and animals.

Have a good day! or not...its up to you- <3

Answer:

Transpiration is the loss of water from a plant in the form of water vapor. Water is absorbed by roots from the soil and transported as a liquid to the leaves via xylem. In the leaves, small pores allow water to escape as a vapor. Of all the water absorbed by plants, less than 5% remains in the plant for growth.

Among the options provided, animals, plants, and fungi are classified as eukaryotes. Eukaryotes are organisms whose cells contain a well-defined nucleus enclosed by a nuclear membrane and other membrane-bound organelles. They are distinct from prokaryotes, which lack a nucleus and membrane-bound organelles.

Animals are multicellular eukaryotic organisms belonging to the kingdom Animalia. They exhibit a wide range of characteristics and include organisms as diverse as mammals, birds, reptiles, amphibians, fish, and invertebrates. Animal cells are complex and specialized, with various organelles performing specific functions.

Plants, classified under the kingdom Plantae, are also eukaryotic organisms. They encompass a diverse group of organisms ranging from small mosses to large trees. Plant cells have unique features such as cell walls composed of cellulose, chloroplasts for photosynthesis, and specialized structures like roots, stems, and leaves.

Fungi, belonging to the kingdom Fungi, are eukaryotic organisms that include mushrooms, yeasts, molds, and mildews. They exhibit a range of characteristics and can be either unicellular or multicellular. Fungal cells possess a unique cell wall composition, and their mode of nutrition is typically through absorption.

Archaea, on the other hand, are prokaryotic organisms. They constitute one of the three domains of life, alongside bacteria and eukaryotes. Archaea have distinct molecular and genetic characteristics that differentiate them from bacteria and eukaryotes. They are known to inhabit extreme environments such as hot springs and deep-sea hydrothermal vents.

In summary, animals, plants, and fungi are eukaryotes, whereas archaea are prokaryotes. Eukaryotes are characterized by the presence of a nucleus and membrane-bound organelles, while prokaryotes lack these structures.

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Answer:

D.) Andean

Explanation:

Andean is the kind of mountain formed due to an oceanic plate and continental plate colliding.

Answer:

your answer to this question is Andean letter D

Explanation:

Answer: D of the above

Explanation: I am assuming this is for a gizmo because I had this same question. The correct answer for me was D.

New proteins affect the fitness of children as They increase fitness (option b )

Protein are biochemical molecular substances made up of chains of Amino acids and are important part of a healthy diet. They are made up of chemical 'building blocks' called amino acids. Our body uses amino acids to build and repair muscles and bones and to make hormones and enzymes. They can also be used as an energy source

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Answer: linkage

Explanation: cK-12 says it’s right :)

Answer:

As organisms release energy during cellular respiration, carbon dioxide is produced from the carbon in energy storage molecules. ... Carbon dioxide in the biodome decreased because decomposers decreased which means there was a decrease in cellular respiration overall.

There are several possible reasons why the carbon dioxide levels in the air of a biodome might decrease like photosynthesis, respiration, ventilation and carbon sequestration.

There are several possible reasons why the carbon dioxide levels in the air of a biodome might decrease. Some possible causes include:

Photosynthesis: If the biodome contains plants, they may be using carbon dioxide during photosynthesis to produce oxygen and glucose. This process would remove carbon dioxide from the air.

Respiration: If the biodome contains animals or microorganisms that respire, they may be consuming oxygen and producing carbon dioxide. This would result in a decrease in carbon dioxide levels in the air.

Ventilation: If the biodome has a ventilation system, it may be designed to remove excess carbon dioxide from the air. This could result in a decrease in carbon dioxide levels.

Carbon sequestration: If the biodome has systems in place to capture and store carbon dioxide, such as through the use of plants or other methods, this could result in a decrease in carbon dioxide levels in the air.

It's important to note that the specific cause of a decrease in carbon dioxide levels in the biodome's air will depend on the specific conditions and systems in place within the biodome.

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Answer:

1. DNA strands unwind and separate 2.mRNA leaves the nucleus 3.mRNA copies DNA according to complimentary base paring .4 tRNA anticodons bring amino acids to the corresponding mRNA codons. 5 amino acids bind to each other making a protein 6. a stop codon is reached, the newly formed protein is released to go do its job for the cell

Answer:

independent assortment, crossing over and random fertilization

Explanation:

There are three mechanisms by which sexual reproduction increases genetic variation in progeny. First, random fertilization is the process by which gametes randomly combine in order to increase the possibilities for genetic variation. Second, the independent assortment refers to the process by which pairs of homologous chromosomes independently separate from one another during meiosis. Finally, crossing over, also known as recombination, is the process by which two homologous chromosomes' non-sister chromatids can exchange genetic material during meiosis I (prophase I).

Let's suppose the dominant gene is represented with a capital T and the recessive gene is represented with a lowercase t.

Since recessive genes can only appear when no dominant ones are present, the only possible genotype would be tt.

Answer:

Water

Explanation:

Answer: Host??

Explanation:

Answer:

The person and the tapeworm have a parasitical relationship.

Explanation:

The parasite (the tapeworm) is benefiting from its host while the host is being harmed by not getting the nutrients it needs.

I hope this helps! :)

Answer:

c. connective tissue

Explanation:

The largest blood vessels are arteries and veins, which have a thick, tough wall of connective tissue and and many layers of smooth muscle cells

Answer:

A DNA marker

Explanation:

also known as a size standard or a DNA ladder) is loaded into the first well of the gel. The fragments in the marker are of a known length so can be used to help approximate the size of the fragments in the samples.