Answer:
An ecologist is a scientist who studies ecosystems
Explanation:
Give Brainliest if I helped
write E for Exponential Growth and L for Logistic Growth.
______26. This type of growth tends to level off upon the carrying capacity.
_____27. This type of growth has a period of steady growth.
_____28. This type of growth is more realistic and true
_____29. This type of growth keeps growing forever if unchecked
Only distinct populations of the same organism can experience the statement. The two growth strategies occur in various ways.
What is a growth in logistics?
When a population's rate of per capita growth declines as it approaches the carrying capacity, a limit set by finite resources, logistic growth occurs.
What are exponential growth and logistical growth?
There are two different types of population increase: exponential growth and logistic growth. The population grows at an exponential rate when there are plenty of resources available. When the restricted resources in the environment have an impact on the growing population, logistic growth results.
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How does most carbon get released back into the atmosphere during the geological carbon cycle?
A. Volcanoes
B. Dead plants & animals
C. Erosion of rocks and minerals
D. Combustion of fossil fuels a over a short period of time
What is the population density?_______
Answer:
Population density is a measurement of population per unit area.
Explanation:
a microscope that maintains focus when the objective magnification is increased is called
Answer:
It is called parafocal.
A parafocal microscope
why are DNA and RNA considered as acids?
Answer:
DNA and RNA are both considered acids because they are formed from phosphate groups.
Explanation:
These phosphates can readily remove a proton and make the DNA and RNA highly acidic. The nucleotides of DNA and RNA are composed of both the basic and acidic subunits.
Attached earlobes are a recessive trait in humans. In the tree below, people
with attached earlobes are shaded in. Which best describes the person
labeled X in the tree
A male with one recessive allele is the correct answer.
What do you mean by recessive allele:
Earlobes of this kind are tiny and fastened firmly to the side of the head. The lack of the dominant allele in the chromosomes is what causes this type of lobe to form structurally. An connected earlobe is expressed by the recessive allele.
The children from this generation are the result of a cross between homozygous recessive (one parent) and heterozygous (two parents) parents. All of the filial 1 (one) generation's kids will therefore carry a recessive allele. The attached earlobe trait won't be present in people with the same dominant allele, though.
Having an attached earlobe a dominating human characteristic?Some people's ear lobes are free, whereas others have them linked to the side of the head. This is caused by a gene that is recessive in people with attached earlobes and dominant in people with detached earlobes. Therefore, in humans, attached ear lobes are recessive.
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What do the x’s represent on the mitochondria
The X in the diagram mentions the electron transportation. This process happens during cellular respiration.
The third and last phase in aerobic cell respiration is electron transportation and oxidative phosphorylation. In eukaryotic cells, the mitochondrial membrane contains a collection of protein molecules and electron transport system molecules that make up the electron transport chain. The "highly energetic" electrons produced by the cycle of citric acid are transferred to oxygen through a sequence of processes. As h+ ions are pushed out of matrix of the mitochondria and into the cell membranes space, an electrical and chemical gradient is created from across mitochondrial inner membrane. In the end, oxidative phosphorylation—the method by which cell enzymes oxidize nutrients—produces ATP. The energy generated by the electron transport chain is used by the protein ATP synthase to phosphorylate (add a phosphate group to a molecule) ADP into ATP. The majority of ATP is produced during the oxidative phosphorylation and electron transport chain phases of cellular respiration.
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What property of the carbon atom makes it unique?
A ionic properties
B bonding properties
C hydrogen bonding strength
D six outer unpaired electrons
Answer: Carbon atoms are unique because they can bond together to form very long, durable chains that can have branches or rings of various sizes and often contain thousands of carbon atoms. Silicon and a few other elements can form similar chains; but they are generally shorter, and much less durable.
Explanation:
betweeen altitude versus average number of red blood cells which one is a dependent variable
Answer:
number of red blood cells
Explanation:
the number of red blood cells depend on what altitude you are at therefore its the dependant variable. altitudes is not dependant on anything so we say it's the independent variable
6. Adding plant food to a lawn affects the height of grass. What is the independent variable?
a. The height of the grass
b. The plant food
c. The temperature of the weather
7. Adding plant food to a lawn affects the height of grass. What is one control you would need to
The independent variable here is option b. the plant food.
In the given experiment, the hypothesis is whether adding plant food to the lawn affects the height of the grass.
The dependent variable that will reflect changes due to alterations in other variables would be the height of the grass.
To determine the cause of one factor over another in experiments, two variables are required. The independent and dependent variables are these. In an experimental study, the independent variable can be changed, manipulated, or adjusted. On another variable, which is a dependent variable, the impact of such manipulation is shown. The outcome of the experiment can be determined by tracking changes in the dependent variable.The cause is the independent variable. Its value is unaffected by the other study variables. The effect is the dependent variable.Hence, the independent variable here is option b. the plant food.
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Which of the following correctly gives the electric field at a distance R above an infinitely long line of charge with constant linear charge density λ?
Answer:
Correct option is B) Consider a Gaussian surface (cylinder in this case) of radius r and length l. Then according to the Gauss's Law of electrostatics:∫E.dA=ϵ0qenclosedFrom the symmetry of the surface, we can easily say that the electric field would only be along the radial direction. And the amount of charge enclosed by this cylinder is qenclosed=λ×l and the surface area of the cylinder A=2πrl. So, E×2πrl=ϵ0λl E=(2πϵ01)rλ
Explanation:
Which form of energy is used by all living things? mechanical electrical light chemical
Answer:
Chemical Energy!
Explanation:
chemical energy is in all living things - i think that most things would pass away without it due to the fact that we kind of need it to grown and stuff
Answer:
Chemical
Explanation:
It is needed by all living things and every living cell to carry out life processes, such as breaking down and building up molecules, and transporting many molecules across cell membranes. The form of energy that living things need for these processes is chemical energy, and it comes from food.
Hope this helped and have a good day
Sexual reproduction ____ variation and selective breeding ____ variation
A.) increases, decreases
B.) increases, increases
C.) decreases, decreases
D.) decreases, increases
Answer:
Explanation:
sexual reproduction increases variation and selective breeding decrease variation
Answer:
its a
Explanation:
trust
:>
. What does lactose break down into?
Answer:
The lactase in your small intestine should break lactose down into sugars called glucose and galactose, which are then absorbed into your bloodstream.
Explanation:
True or False Heat or thermal energy can only come from burning wood
Answer:
true
Explanation:
because burning woods provides heat
Someone, Please Help me with this table
The complete table of the biological molecules and their functions are given below:
Simple Carbohydrates
Elemental Make Up: Carbon, hydrogen, Oxygen
Basic Structure: Cyclic compounds
Monomer: Glucose, Galactose
Function(s): Provides energy
Examples in the human body: Glucose, Galactose
Complex Carbohydrates
Elemental Make Up: Carbon, hydrogen, Oxygen
Basic Structure: straight and branched chains
Monomer: Glucose
Function(s): structural molecules, energy storage
Examples in the human body: glycogen
Lipids (Fats)
Elemental Make Up: Carbon, hydrogen, Oxygen
Basic Structure: straight chains
Monomer: Fatty acids and glycerol
Function(s): structural molecule, energy storage
Examples in the human body: cholesterol, sphingolipids
Proteins
Elemental Make Up: Carbon, hydrogen, Oxygen, Nitrogen, Sulfur
Basic Structure: linear peptides
Monomer: amino acids
Function(s): enzymes, hormones, transporters
Examples in the human body; Insulin, catalase
Nucleic Acids
Elemental Make Up: Carbon, hydrogen, Oxygen, Nitrogen, Phosphorus
Basic Structure: Linear chains
Monomer: thymine, uracil, cytosine, guanine, adenine
Function(s): stores genetic information
Examples in the human body: DNA, RNA
ATP
Elemental Make Up: Carbon, hydrogen, Oxygen, Nitrogen, Phosphorus
Basic Structure: three-dimensional molecule
Monomer: ATP
Function(s): energy molecule
Examples in the human body: ATP in muscles
Water
Elemental Make Up: Hydrogen and oxygen
Basic Structure: trigonal pyramid
Monomer: water
Function(s): main component of cytosol
Examples in the human body: in interstitial fluid
What are biological molecules?Biological molecules are basic molecules found in living organisms.
Biological molecules are important structural and metabolic molecules in the body.
The main biological molecules include:
Simple CarbohydratesComplex CarbohydratesLipids (Fats)ProteinsNucleic AcidsATPWaterIn conclusion, biological molecules are the molecules of life.
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Step 1: took ten leaves from a plant
Step 2: weighed all ten leaves
Step 3: hung the leaves up in a classroom for 4 days
Step 4: weighed all ten leaves again
Step 5: calculated the mass of water lost by the leaves
Step 6: repeated steps 1 to 5 with grease spread on the upper surfaces of the leaves
Step 7: repeated steps 1 to 5 with grease spread on both the upper and lower surfaces
of the leaves.
All the leaves were taken from the same type of plant.
Table 2 shows, the student's results.
Table 2
Treatment of leaves
Mass of water the
leaves lost in g
0.98
No grease was used on the leaves
Grease on upper surfaces of the leaves
0.86
Grease on upper and lower surfaces of the leaves
0.01
What mass of water was lost in 4 days through the upper surfaces of the leaves?
[1 mark]
Answer:
i dont understand what is this
Which of the following is NOT part of the Cell Theory? O Cells are the basic unit of life (structure and function) in all living things O All cells have a nucleus containing genetic information O All living things are made of 1 or more cells O All cells come from existing cells
Answer:
All Cells have a nucleus containing genetic information
Explanation:
A new sea star species has been identified in Australia. This species is a hermaphrodite that self-fertilizes and keeps its young inside of its body. Other species of sea stars in this genus have both male and female sea stars. They release eggs and sperm into the water where the egg is fertilized. How does the new sea star species influence our understanding of biology? Select all that apply.
A.
It shows that populations of organisms share the same habitat.
B.
It shows that populations of organisms in a community stay the same.
C.
It shows that populations of organisms can separate into new species.
D.
It shows that populations of organisms have a certain carrying capacity.
E.
It shows that populations of organisms interact with the nonliving environment.
F.
It shows that populations of organisms have individuals that form with new traits.
The new sea star species influence our understanding of biology It shows that populations of organisms have individuals that form with new traits.
Why are sea stars a keystone species?
In Australia, a brand-new species of sea star has been discovered. This species is a hermaphrodite that carries its eggs inside of its body and self-fertilizes. There are male and female sea stars in other species of sea stars in this genus. In the water, when the egg is fertilized, they discharge eggs and sperm.
Ochre Sea Star. A keystone species is an organism that helps define an entire ecosystem. By keeping populations of mussels and barnacles in check, this sea star helps ensure healthy populations of seaweeds and the communities that feed on them—sea urchins, sea snails, limpets, and bivalves.
Sea stars are important members of the marine environment and are considered a keystone species.
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order the components to
show how energy and matter cycle through the kingfisher's ecosystem.
a. aquatic invertebrates
d. aquatic plants
b. kingfisher
e. fish
c. sunlight
d Energy Flow
Answer:
Sunlight > Aquatic plants > Aquatic invertebrates > Fish > Kingfisher
Explanation:
The food chain starts with producers who are capable of producing their own food with help of sunlight. Then aquatic invertebrates, tishes and kingfisher being the successive consumers. This is how the energy and matter flows in a kingfisher's ecosystem.
Describe the following spheres of the Earth.
1. Geosphere
2. Biosphere
3. Atmosphere
4. Hydrosphere
Explanation:
1. Geosphere
Geo means “earth.” The Earth’s geosphere (sometimes called the lithosphere) is the portion of the earth that includes rocks and minerals. It starts at the ground and extends all the way down to Earth’s core.
We rely on the geosphere to provide natural resources and a place to grow food. Volcanos, mountain ranges, and deserts are all part of the geosphere.
2. Biosphere
Bio means “life.” The biosphere is made up of all the living things on Earth and it includes fish, birds, plants, and even people.
The living portion of the Earth interacts with all the other spheres. Living things need water (hydrosphere), chemicals from the atmosphere, and nutrients gained by eating things in the biosphere.
3. Atmosphere
Atmos means “air.” The atmosphere includes all the gases surrounding the Earth. We often call the atmosphere “air.” All planets have an atmosphere, but Earth is the only planet with the correct combination of gases to support life.
The atmosphere consists of five layers and is responsible for Earth’s weather. Even though it seems like air is made of nothing, it consists of particles too small to be seen. All these particles have weight that push down on Earth. The weight of air above us is called air pressure.
4. Hydrosphere
Hydro means “water.“ The hydrosphere includes the oceans, rivers, lakes, groundwater, and water frozen in glaciers. 97% of water on Earth is found in the oceans. Water is one of the most important substances needed for life and makes up about 90% of living things. Without water, life would not be possible.
9.
Wakeny
2015 Encyclopaedia Britannica, inc
If 27,500 Kj is at the producer level how many Kj are available for the secondary
consumers ?
By being consumed by another organism, organic molecules from one organism's body can transfer energy from one trophic level to the next. But typically, there is not a particularly effective way to move energy between trophic levels.
The energy stored as biomass at one trophic level, such as primary producers, only accounts for 10% of the energy stored in the following trophic level (e.g., primary consumers).
In other terms, as trophic levels rise, net production falls by a factor of 10.
First-level trophic level members are producers. In the second trophic level, there are primary consumers. The third trophic level has secondary consumers. Because they are at a low trophic level than Tertiary Consumers, Secondary Consumers receive more energy.Since 27,500 Kj energy is present at the producer level, 10% of it will be available at the primary consumer level. This accounts for 2750 Kj of energy.Now, 10% of 2750 Kj of energy will be available at the secondary consumer level. This is equivalent to 275 Kj of energy.Learn more about trophic levels here:
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whats hypermobility
Answer:
its when your joints move beyond the normal range of motion
Explanation:
Answer:
Hypermobility or being “double jointed” refers to joints that move beyond the normal range of motion.
Explanation:
Why didn't snow think that miasma theory could explain the initial cases of john harnold and mr blenkinsopp in the 1848 cholera outbreak?
The main reason why Snow thinks that the miasma theory could explain the initial cases of John Harold and Mr. Blenkinsop in the 1848 cholera outbreak is that the air was bad during the time.
This is a result of the belief that diseases are produced due to unhealthy or polluted vapors from the earth or as a by-product of decomposed material.
What is the Miasma Theory?This refers to the obsolete medical theory that believes that diseases were caused by bad air known as miasma.
Hence, we can see that The main reason why Snow thinks that the miasma theory could explain the initial cases of John Harold and Mr. Blenkinsop in the 1848 cholera outbreak is that the air was bad during the time.
This is a result of the belief that diseases are produced due to unhealthy or polluted vapors from the earth or as a by-product of decomposed material.
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Answer:The first cholera casualty was a man who had traveled from Hamburg, a city that was battling cholera at the time. Since there had been no cholera in England for years before, it is reasonabe to hypothesize that John Harnold brought cholera to England from the European continent.
Explanation:
Based on this information, which of the following new combinations of race car characteristics would most likely be the fastest?
OA. straw diameter = 0.75 cm, car mass = 2.75 g
OB. straw diameter = 2.25 cm, car mass = 2.75 g
OC. straw diameter = 2.25 cm, car mass = 4.50 g
OD. straw diameter = 0.75 cm, car mass = 4.50 g
Answer:
A
Explanation:
well the reason why is because the smaller the diameter the faster it will go
who is good a biology
Explain the anatomical concepts associated with human development
The anatomical concepts associated with human development deals with the ways and different processes in which the body developed from a zygote which is formed from the fusion of the male and female gamete.
What is Development?This is defined as the prices in which the body grows into maturity from the pregnancy stage to adulthood and it starts with the fertilization process which results in the implantation of the zygote in the uterus.
After some weeks, the parts of the body are formed and are usually visible when a scan is done and the body are formed with adequate supply of nutrients in the body which enhances the process of cell division such as mitosis which is responsible for the growth and repair of worn out tissues.
This concept of growth is how humans develop as a result of organs such as the brain etc being involved in this process also which explains how the anatomical concepts are associated with human development.
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If you are conducting visual examination of what particular causal pathogen it affect plant diseases. What are the important points or information you must gathered to ensure that your diagnosis are reliable. List the steps and explain.
A pathogen such as a fungus, bacterium, mycoplasma, virus, viroid, nematode, or parasitic flowering plant, is what causes infectious plant illnesses.
As a result, one of the key components of a plant pathologist's education is diagnosis. Plant pathogens Illness control procedures can be a waste of time and resources and can result in additional plant losses if the disease and its cause are not correctly identified. Therefore, accurate illness diagnosis is essential.
the correct diagnosis of plant disease include the bellow steps.
Recognize the appearance of a healthy plant.Recognize the distinctive signs.Determine symptom variation.Search for indications of biotic causative agents.Determine Which Plant Part Is Affected - Are There Symptoms Related to Particular Plant PartsCheck the symptom distribution.learn more about pathogen here: https://brainly.com/question/1008643
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Where does an organization's culture originate?
The organizational culture shared the social knowledge with the other organization but with in the limits of rules and regulations.
Where does an organization's culture originate?
Organizational culture shared the social knowledge with the other organization but in the limits of rules and regulations and also with the attitude behaviour of the employee.
The aim of the organization culture is to shared believe, norms, values and also includes the practicing because the practicing characterize or organize an organization. There are many sources of the organization culture but the most important sources of the organization culture includes the property rights according to employees, structure of the organization, organizational ethics and many more sources. The organization culture actually comes from the founder of the company.
So we can conclude that the organizational culture shared the social knowledge with the other organization but with in the limits of rules and regulations.
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Which cell organelle could
function as a mouth?
Lysosome cell organelle could function as a mouth.
Because its primary role in preserving cellular homeostasis is to break down the waste present in a cell, the lysosome should be seen in greater numbers when the breakdown of molecules is necessary, such as in the process of breaking down food. Because it is packed with digestive enzymes that would effectively complete this process, it is well suited to breaking down food as you take it.Food is truly consumed in the mouth, where chewing initiates the mechanical process that leads to digestion. Food is broken down into smaller particles and combined with saliva in this manner. The chemical digestion of starch is already underway thanks to the amylase enzyme found in saliva.To learn more about Lysosome.
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