The dichotomous key is a classification tool based on morphological characteristics. The correct option is B. Dichotomous keys can only be used to classify organisms based on their observable traits.
What is a Dichotomous key?A dichotomous key might be considered a significantly useful tool to classify organisms.
The key provides an easy and fast way for identification by describing different morphological observable traits, leading you to the correct taxonomic classification.
The term dichotomous refers to how information is provided. You will always have two options (a and b, or 1 and 2), and you will have to choose one of them according to the characteristics of your organism.
Each time you choose an option, it leads you to the following description, which gets more specific each time.
Probably you might need an atlas or a dictionary to understand some of the technical terminologies.
You will also need to carefully observe your specimen, to get to distinguish different traits. If the specimen is too small you might need a loup.
The correct statement is B. Dichotomous keys can only be used to classify organisms based on their observable traits.
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Answer: 1. they lack roots 2. Dichotomous keys can only be used to classify organisms based on their observable traits. 3. domain 4. Both focus on illustrating taxonomic relationships between organisms. 5. domains
Explanation: just took the quick check made 5/5 hope this helps :)
Which statement isn't true?
Answer:
I'm pretty sure the answer is b. Cells can absorb food and oxygen
why fertilizer is important
Answer:Fertilizers provide crops with nutrients like potassium, phosphorus, and nitrogen, which allow crops to grow bigger, faster, and to produce more food. To grow, plants require nitrogen compounds from the soil, which can be produced naturally or be provided by fertilizers.
Explanation:
Where do heterotrophs get phosphorus from?
Answer:
Heterotrophs rely on organic material and remineralize nutrients such as nitrogen and phosphorus when they are in excess of requirements.
Question 4
Each individual bundle of muscle cells is called a
I am not sure but I think Quizlet is the right answer
In complementary DNA strands, which bases pair together?
Answer:
Adenine pairs with Thymine, and Cytosine pairs with Guanine
What is the concept of genetic engineering? Cite its advantages and disadvantage (if there is any).
Answer:
Genetic engineering is the process of using recombinant DNA (rDNA) technology to alter the genetic makeup of an organism.
Disadvantages
The nutritional value of foods can be less. .
Pathogens adapt to the new genetic profiles
There can be negative side effects that are unexpected
The amount of diversity developed can be less favorable
Copyrighted genetic engineering can have costly consequences.
Advantages
More nutritious food.
Tastier food.
Disease- and drought-resistant plants that require fewer environmental resources (such as water and fertilizer)
Less use of pesticides.
Increased supply of food with reduced cost and longer shelf life.
Faster growing plants and animals.
Section Review
1. Construct Make a table to record information about the four main organic
molecules that make life possible. The table column headings should be
"Molecule," "Description," and "How Used by Living Things."
The four major classes of biomolecules are carbohydrates, lipids, proteins and nucleic acids. These biomolecules are fundamental for the functioning of all biological systems.
Molecule: carbohydratesDescription: complex carbohydrates are polymers composed of many subunits called monosaccharides (i.e., simple carbohydrates) linked by glycosidic bonds.How Used by Living Things: structural and energy roles. Complex carbohydrates provide a more lasting energy source in the body than simple carbohydrates.Molecule: lipidsDescription: lipids are a broad category of biomolecules that may be composed of one or more fatty acid chains and a glycerol backbone. How Used by Living Things: lipids provide a source of long-term energy for cells, heat insulation, structural roles in the cell membrane (phospholipids and cholesterol, etc).Molecule: proteinsDescription: proteins are polymers composed of a linear chain of amino acids linked by peptide bonds.How Used by Living Things: proteins have structural (e.g., actin filaments) and enzymatic (e.g., catalase) functions.Molecule: nucleic acidsDescription: nucleic acids (DNA and RNA) are polymers consisting of long chains of nucleotides.How Used by Living Things: DNA contains the hereditary information which is required to synthesize any protein. RNA serves as a transition molecule that helps to regulate the type and amount of proteins in cells.Learn more in:
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Hair color is determined by a single gene with a series of alleles, each resulting in different colors. Black, brown, blond and other hair colors are examples of___?
A. incomplete dominance
B. multiple alleles
C. sex-linked trait
D. polygenic traits
Answer:
dissimilar appearence or properties.
Explanation:
Hair color is not so simple as that. Most traits, especially those as complex as color, are controlled by many alleles at many loci. That's why there are different kinds of brown, blond, and red hair in the population. There is no "hair color gene." A fascinating paper came out a few years ago, identifying dozens of SNPs playing a role in hair and eye color. It's a deep, deep rabbit hole that we have only begun to plunge into.
Q6.2. There are many diseases that do not infect a person more than once, such as chicken pox
and measles. What is responsible for this lifetime immunity?
The innate immune response, because barriers to entering the body improve with age.
The innate immune response, because adults have more white blood cells than children.
The acquired immune response, because antibodies are developed from previous infections.
The acquired immune response, because it responds rapidly to broad classes of pathogens.
The responsible for this lifetime immunity is the acquired immune response because antibodies are developed from previous infections. The generation of antibodies is a response to these infections.
The acquired immune system eliminates pathogenic organisms and any toxic molecules they produce.
The acquired immune system has two mechanisms of action: humoral immunity and cellular immunity.
Humoral immunity, also known as antibody-mediated immunity, involves the activation of specific blood cells (B cells) and subsequent secretion of antibodies when in contact with a pathogen.
Thus, the acquired immune system develops specific antibodies as a response to infections (e.g., chickenpox and measles).
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BRAINLIEST FIR RIGHT ANSWERS, WHAT SHAPE AND WHY?
4. Hydrogen cyanide (HCN) is a colorless gas. It is poisonous and smells like
almonds. On a piece of scratch paper, draw a Lewis structure for this compound. (you
do not need to show the picture)
Using that drawing, explain what shape you think this molecule is and WHY you
think it would be this shape. (4 points)
it would be an oval because the
A/
ORI
Answer:
Explanation:
Hydrogen cyanide (HCN)
The molecular geometry of HCN is linear. The compound is polar in nature.
As Carbon is bonded to two atoms, it follows the molecular geometry of AX2. And as per VSEPR theory, molecules covered under AX2 have a linear molecular geometry.
Hence Hydrogen Cyanide has linear molecular geometry.
write the chemical equation of aerobic respiration?
Answer:
[tex]\huge\color{cyan}\boxed {\colorbox{black}{ANSWER}}[/tex]
C6H12O6 + 6O2 ⟼ 6CO2 + 6H2O + 38(ATP)
Which organisms obtain energy from dead or decaying matter? Select two options.
groundhogs
daisies
earthworms
bacteria
humans
phytoplankton
Earthworms and bacteria organisms obtain energy from dead or decaying matter. Thus, the correct option is C and D.
What is organic matter?The term "organic matter" refers to material that contains carbon compounds produced by living things. Lawn trimmings, leaves, twigs, branches, moss, algae, lichens, any animal parts, sewage sludge, sawdust, insects, earthworms, and bacteria are just a few examples of what it includes.
The main decomposers in many ecosystems are fungi and bacteria, which utilise the chemical energy in dead matter and wastes to power their metabolic processes. Detritivores, sometimes known as trash or debris eaters, are other types of decomposers. Typically, these are creatures with several cells, like vultures, earthworms, crabs, or slugs.
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Answer:
C, D
Explanation:
i took the test
aproximately how many HeLa cells are there?
Over the course of 26 years, 600,000,000 HeLa cells have been produced in my laboratory each week, for a total of 800 billion cells. That is a lot of cells, but it's nothing compared with the total number of cells – approximately 100 trillion – that make up a human.
What is another way nitrogen is added back into the atmosphere BESIDES animal waste, but is too unreliable to count on?
Answer:
Plant and animal wastes decompose, adding nitrogen to the soil. Bacteria in the soil convert those forms of nitrogen into forms plants can use. Plants use the nitrogen in the soil to grow. People and animals eat the plants; then animal and plant residues return nitrogen to the soil again, completing the cycle.
WILL GIVE BRAINLIEST!!
What is the function of the sodium potassium pump?
To move sodium ions extracellularly and potassium ions intracellularly
To move sodium and potassium ions extracellularly
To move potassium ions extracellularly and sodium ions intracellularly
To move sodium and potassium ions intracellularly
Answer:
D) To move the sodium and potassium ions intracellularly
How are the cells in the skeletal system helping me in the action of kicking a ball?
Answer:
Flexion of the hip joint occurs when the femur (upper leg) moves forwards, which happens when long jumpers land or at the end of kicking a ball.
Explanation:
2. The youngest part of the ocean floor is found at the
A. convergent boundary
C. transform-fault
B. divergent boundary
D. hot spot
Answer:
B. Divergent Boundary
Explanation:
The plates are moving apart, so magma is coming up and cooling into new fresh rock.
Risk of toxicity is higher with fat- vitamins. True or False
Answer:
True
Explanation:
The fat-soluble vitamins, A, D, E, and K, are stored in the body for long periods of time and generally pose a greater risk for toxicity than water-soluble vitamins when consumed in excess. Eating a normal, well-balanced diet will not lead to toxicity in otherwise healthy individuals.
Cuál es la utilidad de la lógica argumentativa en la comunicación
Answer:Comunicación argumentativa para la investigación-acción ... espectro innovador de su diseño de la lógica que enseña a investigar problemas y ...
Explanation:
Enzyme activity generally increases as temperature increases within an enzyme’s optimal range because an increase in temperature causes an increase in molecular motion. This increase in molecular motion results in the enzyme and its substrate coming into contact with each other more often. At too high a temperature, however, the enzyme will become denatured and no longer be able to function. As the video describes, that is what happens when someone has a high fever.
What do you think happens to enzyme activity as temperature decreases outside an enzyme’s optimal range? Explain your answer in terms of molecular motion.
This most reliable temperature is commonly around human frame temperature (37.5 °C) for the enzymes in human cells. Above this temperature, the enzyme shape begins to interrupt down denature given that at better temperatures intra- and intermolecular bonds are broken because of the enzyme molecules' advantage of even greater kinetic electricity.
Each enzyme has a temperature variety in which a maximal charge of response is accomplished. This maximum is referred to as the temperature most desirable of the enzyme. The most excellent temperature for maximum enzymes is set at ninety-eight. 6 tiers Fahrenheit (37 ranges Celsius). There also are enzymes that work nicely at decreased and better temperatures.
Most activity is accomplished on the enzyme's ultimate temperature. The lively website online of the enzyme modifications shape as the temperature rises above the surest temperature, resulting in a decline in interest. Above and under the highest quality temperature, activity decreases.
Most enzyme functions are done at 37∘C in humans due to the fact the enzymes are capable of holding their structure at that temperature, allowing it to break down complex molecules efficiently.
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girlcome 5324611502 p-here
Um what do you mean by that ?
How does the sucrose molecule leave the body?
Answer:
Short word, "Pee/Urine"Explanation:
If your drinking water then color of your Pee is based what you drink.all of the following are characteristics of living things expect
Answer:
The ability to move
Explanation:
Have a good day
Answer:
homeostasis
Explanation:
Question:
All of the following are characteristics of life except:
a. growth
b. homeostasis
c. movement
d. reproduction
e. energy use
Which term best completes the following analogy?
Elements : Atoms: Covalent compounds: _________
A. Bonds
B. lons
C. Mixtures
D. Molecules
Answer:
C. Molecules
The best term that completes the analogy is Molecules
a plant grows 3 inches faster per dat when placed on a window sill than it does when placed on a coffee table. Determine if observation is qualitive or quantitive
Answer:
sg5ntg4r4fhynumybtcrbu
ny f gh
Explanation:
chnbunmhbcrxrctvub
2. What is the name of the site on a chloroplast where half of the reactions in photosynthesis occur?
thylakoid membrane
cell wall
stroma
grana
Answer:
thylakoid
Explanation:
Hope this helps
Nucleus is found in...
A. prokaryotic cells.
B. eukaryotic cells.
C. all cells.
Answer:
Eukaryotic cells
Explanation:
Prokaryotic cells do not have a nucleus but eukaryotic cells do.
Hope this helps!
C. Eukaryotic cells.
All cells can be classified into two groups: eukaryotic and prokaryotic. Eukaryotes have a membrane-enclosed nucleus and organelles, whereas prokaryotes do not.
reproducing plant and animals Which have desirable traits is called
Selective Breeding....
In a Lewis structure, what does a single line represent?
A. A single ionic bond
B. A single covalent bond
C. A double covalent bond
D. A single valence electron
Answer:
The answer is B
Explanation:
it's supposed to represent a single covalent bond
What are CAM plants?
Explanation:
A plant that utilizes the Crassulacean acid metabolism (CAM) as an adaptation for arid conditions. CO2 entering the stomata during the night is converted into organic acids, which release CO2 for the Calvin Cycle during the day, when the stomata are closed.