Dichotomous key example

Answers

Answer 1
Hi :)

There are two types of dichotomous keys, one is a spider key


and the other asks a series of questions and as you answer them, depending on the characteristics of your species, you’ll decide what step to move to

Hope this helps :)
Dichotomous Key Example

Related Questions

Which of these often describes an ecosystem with high biodiversity

challenging to survival

resilient

susceptible to disease

competitive

Answers

Answer:

Among those resilient often describes an ecosystem with high biodiversity

which two maps would you use if you wanted to determine the tallest mountain in the United States?
A. Topographic map
B. Road map
C. Relief map
D. Resource map

Answers

A. Topographic map and C. Relief map

Answer:

A and C

Explanation:

Our body cells undergo the process of the cell cycle and mitosis daily. Cells undergoing mitosis are important for growth and repair. Each new cell must be identical to its original cell. In order to ensure this works the genetic material must be duplicated. During which phase of the cell cycle does DNA replication occur

Answers

The “S” phase which is the phase of DNA synthesis

Chrysanthemum pests and diseases include leaf miners, _____, powdery mildew and leaf spot

Answers

Answer:

aphids

Explanation:

it just is trust me

A biochemist extracts a molecule from a cell. This molecule catalyzes a chemical reaction. To what class of molecules does it belong?

A. Proteins
B. Carbohydrates
C. Lipids
D. Nucleic acids

Answers

Answer:

proteins create enzymes which speed up reaction

Enzymes are the molecules that catalyze biological reactions, while a catalyst is a material that aids in the occurrence of a chemical reaction, hence option A is correct.    

How do enzymes catalyze chemical reactions?

The crucial function of decreasing the activation energy of chemical events inside the cell is carried out by the majority of enzymes, which are proteins.

Enzymes are biological catalysts that significantly speed up reaction rates and have the propensity to be particular about particular reactants and products, a substrate is a term for the reactant in an enzyme-catalyzed process.    

Proteins are called enzymes to catalyze biological reactions that would not occur without them. For chemical reactions like digestion and cellular metabolism, these enzymes are necessary.

Therefore, since enzymes are a specific type of protein that catalyzes chemical events inside cells, they are excellent therapeutic targets, hence option A is correct.

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Write any 2 control measures of Virus.​

Answers

Answer:

Personal hygiene, environmental hygiene

Explanation:

Always take care of the body to be clean often to avoid the rate of virus sticking on and in the body through diffusion, and often clean the environment to reduce the spread of virus

What is the structure shown in the figure?

Nucleic Acids

Carbohydrates

Proteins

Lipids

Answers

Answer:

lipids

Explanation:

Many male birds will expend a great deal of energy building nests. Females will mate with the males who build the best nests. This is best described as an example of ____.
a. ​natural selection
b. ​sexual selection
c. ​runaway selection
d. ​an invasive species
e. ​disruptive selection

Answers

Answer:

The correct answer is option B.  sexual selection.

Explanation:

Sexual selection is a special type of natural selection proposed by Charles  Darwin. According to this type of natural selection in which a particular sex organism chooses the opposite sex member of the species to mate with on the basis of the preferable traits and compete with the other members of the opposite sex.

Here female birds choose those male birds who build the best nests, it is an example of natural selection.

The carbon atom I'm building has 6 electrons these electrons are found in levels the first level of the carbon has?

Answers

2. First shell always has 2

Which of the following things is common to all living organisms?

Answers

Answer:

All living organisms share several key characteristics or functions: order, sensitivity or response to the environment, reproduction, growth and development, regulation, homeostasis, and energy processing. When viewed together, these characteristics serve to define life.

Explanation:

Describe how a rainforest can reach a point when it cannot be restored by secondary ecological succession

Answers

Answer:Although the secondary forest will be low in diversity and poorly developed, the forest cover will be adequate for some species to return (assuming they still exist).  The solution must be based on what is feasible, not overly idealistic, and depends on developing a new conservation policy built on the principle of sustainable use and development of rainforests. Beyond the responsible development of rainforests, efforts to rehabilitate and restore degraded forest lands along with the establishment of protected areas are key to securing rainforests for the long-term benefits they can provide mankind.

Explanation:

i lloke dit up online because i have not did this yet

A very high damaged leads to no restoration of rainforest by secondary ecological succession.

A rainforest can reach a point when it cannot be restored by secondary ecological succession when the large portion of the rainforest is destroyed and most of diversity is vanished. At this time, restoration is impossible due to very high damages.

Ecological resilience is the ability of an ecosystem to be restored through secondary ecological succession after a severe disturbance. Rainforest have a high biodiversity that helps it to resist damage but at a certain limit so we can conclude that very high damaged leads to no restoration of rainforest by secondary ecological succession.

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Sensory System Knowledge Check
1. Which two senses are forms of chemoreception?

Answers

Answer:

taste and smell

Explanation:

there is ALSO more not only 2

Answer:

The senses and taste

Explanation:

When a patient comes to a hospital with severe dehydration, doctors will give
them an IV filled with a salt-water solution called saline, which is isotonic with
the body's blood cells.
Why is the patient not given pure water?

Answers

Answer:

The red blood cells could burst.

Explanation:

If they are given pure water, the IV fluid will be hypotonic to the blood cells. That means water will end the red blood cells by osmosis, from a high concentration outside to a lower concentration inside.

This will result in the red blood cells becoming swollen and even potential  bursting.

what is a CER please help !!!!!!!

Answers

Answer:

Claim-Evidence-Reasoning

Explanation:

hope it helps

Answer:

CER(S) Stands for Claim, Evidence, Reasoning, Science

Explanation:

The 1st part of CER(S) is a CLAIM. A claim is a simple, single sentence that answers a question. Your claim is a statement about what you believe to be true about that question. Your claim must be accurate, clear, and exact. Your claim should be the first sentence in your explanation. Your claim should ONLY answer the question – do not explain your answer at this point.

The 2nd part of CER(S) is EVIDENCE. Evidence consists of data and/or results that can be used to support the claim. Evidence must be explicitly stated in sentence form and cannot merely be referenced. To adequately support a claim, the evidence must be appropriate (relevant to the question) and sufficient (enough provided to be convincing).

The 3rd part of CER(S) is the REASONING. Reasoning ties the evidence to the claim and explains why the evidence supports your claim.  In this section you discuss why the evidence that you provided is important and relevant to your claim.  

The 4th and final part of CER(S) is the SCIENCE. Your teacher may not ask you to provide the supporting science for every CER(S) question – that is why the S is in parentheses. If you are asked to provide the science that supports your claim, then you need to discuss the relevant science and how it supports your claim.

If the mass of Earth were increased by a factor of 8.00 , by how many times would the force between Earth and the Sun increase?

Answers

Answer:They would increased a lot and cause problems.

Explanation:

-4. Which of the following correctly traces the path of air after it is inhaled?
A. epiglottis, trachea, bronchioles, alveoli
B. bronchioles, alveoli, epiglottis, trachea
C. epiglottis, bronchioles, alveoli, trachea
D. alveoli, epiglottis, trachea, bronchioles

Answers

The answer is c. Epiglottis, bro chilies, alveoli, trachea


2. What types of molecules are used for energy?
3. What is most commonly used?
(U.S.)

Answers

Answer:

Explanation:

Biological molecules The food we eat – our diet – is made up of different biological molecules which give us energy and contain chemicals we need to grow and repair ourselves and help our cells function in our body.

which kingdoms contain organisms that are multicellular You by bacteria archaea bacteria plant Amenia​

Answers

Answer:

(B and (C    

Animalia and Plantae

Explanation:

Got it right on edge (:

The kingdoms that contain organisms that are multicellular are Plantae, Animalia, and Fungi.

What are multicellular organisms?

Multicellular organisms are living beings that comprise cells, they represent the prevailing form of life, on our planet encompass a range of organisms such, as plants, animals, fungi and certain protists.

The emergence of organisms has bestowed benefits compared to their unicellular counterparts. Notably their ability to achieve sizes and intricate complexities sets them apart.

Moreover multicellular organisms possess the capability to differentiate their cells for functions. This adaptability enables them to thrive in environments and enhances their edge in securing vital resources.

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Which line points to the myelin sheath?

Answers

4.

Myelin Sheath is an insulator on the axon

Hope that helps! :)

Answer:D

Explanation:

Can someone please answer these 3 for me

Answers

Answer:

It is positive feedback

Indicate which the following statements are true.

a. During glycolysis, glucose molecules are hydrolysed to yield CO2 and H2O
b. The cleavage of fructose 1,6-bisphosphate by phosphofructokinase yields two molecules of glyceraldehyde 3-phosphate.
c. When subjected to anaerobic conditions, glycolysis in mammalian cells continues and causes a buildup of pyruvate in the cytosol.
d. In the mitochondrial matrix, the pyruvate dehydrogenase complex produces CO2, acetyl-CoA and NADH.
e. Fatty acids can be transported into mitochondria and converted into acetyl-CoA, FADH2 and NADH

Answers

Answer:

The correct answer is:   D  

Explanation:

(a) This process does not occur during glycolysis, it occurs after glycolysis since pyruvate is generally accepted to be the last product of glycolysis

(b) Phosphofructokinase does not produce two molecules of glyceraldehyde 3-phosphate but rather produces of one molecule of glyceraldehyde 3-phosphate and dihydroxyacetone phosphate

(c) During anaerobic conditions in mammals, pyruvate is converted to lactate by the enzyme lactate dehydrogenase. It can actually cause the accumulation of lactic acid/lactate in the muscle which causes muscle fatigue but does not cause buildup of pyruvate in the cytosol.

(d) In the fate of pyruvate, the pyruvate dehydrogenase complex produces CO2, acetyl-CoA and NADH in the mitochondrial matrix. The acetyl-coA produced thereof serves as a precursor for the citric acid cycle.

Niagara Falls is a big waterfall on the border of Canada and the United States. Each year the edge of the waterfall moves back a couple of centimeters because the water is breaking apart the rocks on the edge. What is this an example of? Why?

Answers

This is an example of erosion. Erosion is when something is “washed” away (or eroded) over time (usually by water). The rocks are breaking apart because the rushing water is slowly eroding the edge a couple of centimeters every year.

9C. The diagram below shows an enzyme-catalyzed reaction. How do
enzymes speed up biochemical reactions? *
Carbon dioxide
Water
Enzyme
Substrates
(carbonic
bind to
anhydrose
enzyme
-Active site
Carbonic
acid
Enzyme-
substrate
complex
Products
are released
Substrates
are converted
into products
They lower the activation energy of the reaction
They increase the number of available reactant particles
They absorb energy from the products
They provide energy to the reactants

Answers

Answer:

They lower the activation energy of the reaction

Explanation:

Enzymes are proteinous biochemical molecules that serve as catalyst in living systems. They speed up the rate of biochemical reactions by lowering the activation energy of the reaction they are involved in.

As this question describes, enzymes possess an active site, which the substrate binds to yield products. The enzymes make the reaction faster by reducing the activation energy of the reaction, which is the energy needed to start a reaction.

why is it important to understand plant physiology in crop/plant production and productivity?in your discussion make sure that you mention related fields/areas in agriculture which specifically require a background of plant physiology ​

Answers

Knowledge of Seed physiology helps in understanding of different physiological and morphological changes that occur during germination.  By knowing the different inputs requirement of plants (water, nutrients, sunlight) we can easily manage the plant population to get highest yield.

Does this model represent a compound? Explain your answer.

Answers

Answer:

My Response, not the sample response in the explanation.

Explanation:

It is not a compound because it has two of the same atoms combined. You need two different atoms combined to make a compound.

I put this in the assignment and got it right.

Why do molecules move across the membrane?

Answers

Answer:

because they help your brain produce the lack of energy it could be getting

Explanation:

how do you find per capita growth rate over a month?​

Answers

All you have to do is take the CGR (capita growth rate) percentage you just found and divide it by the number of years, months, etc. The complete formula for annual per capita growth rate is: ((G / N) * 100) / t, where t is the number of years.

Does a parrot eat a grasshopper?

Answers

, A green Parrot eats insects and it will also eat a grasshopper . Green Parrot is Omnivorous in Nature.

I hope this helped

10. According to Bohr's model of the atom, electrons behave like....
A. Waves on a vibrating string
B.Planets orbiting the
C.sun light energy in a vacuum​

Answers

B.Planets orbiting hiiiiii

A colourless, odourless, tasteless, gas that is the most common element in the atmosphere.
a. nitrogen
b. phosphorus
c. carbon
d. oxygen

Answers

Answer:

Nitrogen

Explanation:

Answer:

its a for what i know hope this helps

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