Answer:
B. Prevents growth of new plant species.
Answer:
B. Prevents growth of new plant species
What bacteria was the first one on the Earth?
Answer:
anaerobic heterotrophic bacteria
Explanation:
Cyanobacteria, also known as blue-green algae, started out on Earth quite a while ago. Possible fossil examples have been found in rocks that are around 3500 million years old, in Western Australia. and make me brainlist
Which of the following best describes the relationship between human population size and resource use?
Countries with high populations are likely to use more resources.
Countries with high populations are likely to use fewer resources.
Countries with low populations are likely to use more resources.
There is no correlation between population size and resource use.
Answer:
countries with higher populations are likely to use more resources
Explanation:
The vastness of the threats to the ecosystem is directly linked to human population size and resource uses per person. Resource use, waste production and environmental degradation are accelerated by population growth.
The relationship between human population size and resource is that Countries with high populations are likely to use more resources.
What is population size?Population size is refers to the total number of people that are living together in a place or people occupying a territory, state, town or country. The higher the population size, the higher the number of resources that will be needed and use.
Therefore, The relationship between human population size and resource is that Countries with high populations are likely to use more resources.
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A scientist is researching oil content of seeds from a new plant species named R. artificial. The average oil content from plants in her lab population is 52%, and she has determined the narrow sense heritability (h^2) is 0.60. If she randomly mates individuals with 70%, 71%, 72%, 73%, and 74% seed oil content what is the expected response to selection (R)?
Answer:
The correct answer is - 12%
Explanation:
Given:
Mean of the population - 0.52
Narrow sense heritability or h^2 - 0.6
The expected response of selection or R = ?
Solution:
The average oil content in the selected individuals - 0.7, 0.71, 0.72, 0.73, 0.74
And, the mean of these selected individuals = (0.7 + 0.71 + 0.72 + 0.73 + 0.74) / 5
= 0.72
Formula:
S = Average of selected individuals - Average of population
= 0.72 - 0.52
= 0.20
R = h^2 x S
R = 0.6 x 0.2
= 0.12
= 12%
Thus, the correct answer is - 12%
Heat Transfer Mechanisms 1.In your own words, using the pennies activity, define the three different heat transfer mechanisms. Your definitions should include:
(i) information about how energy is moving
(ii) what is happening microscopically (that is, at the atomic level)
(iii) what phase(s) of materials is usually involved.
Answer:
The three modes of heat transfer are: 1) Radiation 2) Convection 3) Conduction
Explanation:
RADIATION:
It is the mode of heat transfer which requires no medium because the transfer of energy takes place in the form of electromagnetic radiations. The spectrum of radiations that contribute to the heat transfer via radiation is the wavelength ranging from 0.1 μm to 100 μm.
For example the heat from the sun reaches the earth via radiation that passes through space and then through the atmosphere of the earth.
CONVECTION:
It is the mode of heat transfer that takes place in a fluid matter. The molecules in this case move from one place to another due to the difference in density developed as a result of heat absorption.
Example, the boiling of water. When the water in a utensil is heated, the heat is supplied at the bottom. In such a case the molecules of the water absorb the heat resulting in increased intermolecular spacing and hence the water at the bottom becomes the least dense in the bulk of water mass in the utensil hence rises up at to the free surface of the fluid mass. Then the densest mass of the fluid occupies the bottom space and is heated by the heat source supplied. This chain continues.
CONDUCTION:
This is the process of heat transfer from one molecule to the next neighbouring molecules. The propagation of heat energy occurs in a sequential manner starting from the molecule nearest to the heat source. The microscopic phenomenon happens in the form of lattice vibrations that are responsible for the transfer of heat energy via conduction.
Example, while heating of a pan the base heats up at first being continuously exposed to heat whereas the handle of the pan being far away from the source heats up after a long time.
Help someone with this
The membranes that enclose and protect the
The external physical appearance of an indivi
B
A blood clotting disorder, occurring mainly in
recessive gene on the X chromosome.
4
An allele that is not expressed in the phenoty
heterozygous condition.
5 Changes that occur in the diameter of the pu
conditions.
Puplary mechanism
Answer:
B
Explanation:
The specific heat of a substance is a measure of how much energy is required to raise
the ______
one degree per one unit of mass.
why is melting a physical change
Answer:
Because melting can be reversed ( freezing )
Explanation:
Physical change is a change that can be reversed
6) In Medieval times a ruler told the peasants that they were free to take anything from the forest that had fallen, branches, trees, leaves etc. But they were not to take any live standing trees. Within a few years the forest was dying. Why
Answer:
Due to lack of nutrients in the soil.
Explanation:
Within a few years the forest was dying because there is no nutrient is present in the soil which can trigger the growth and development of the sol. The fallen parts of trees such as branches, tree and leaves etc are decomposed by decomposers such as bacteria and fungi which turn the fallen materials into nitrogenous materials which can be used by the plant for its growth and development.
 Why is if imporrant to find a location to build your house?
Explanation:
It's the most important factor when buying real estate. Location matters, even the location inside the neighborhood will have a large impact on your home's value. ... You want to buy on the low end of the neighborhood's price range because the other homes in your neighborhood will bring your value up
Please help me I beg youuuuuuu!!!
Can you please give me an environmental risk or benefit for artificial selection?
Explanation:
Risks:
may lead to a lack of variety in plant or animal species
The nutritional value of foods can be less
Benefits:
faster than natural selection
More selective breeds / Types
The bacterium Salmonella enterica can cause severe food poisoning and the lining of the alimentary canal may be damaged. In these cases absorption of digested food products cannot easily take place. Which region of the alimentary canal is most affected?
A colon B ileum C oesophagus D stomach
Which kind of global wind is responsible for most of the wind patterns over
the continent of Africa?
What gland produces an iodine-containing jormone
Thyroid Gland produces an iodine-containing hormone
Answer:
thyroid gland
Explanation:
internally, the glands consists of follicles, which produce thyroxine and triiodothyronine hormone. These hormones contain iodine.
How to deal with extremely hot weather?
Answer:
Shut windows and pull down the shades when it is hotter outside. ...Avoid the heat: stay out of the sun and don't go out between 11am and 3pm (the hottest part of the day) if you're vulnerable to the effects of heat.Have cool baths or showers, and splash yourself with cool water.Explanation:
everything can be found in the picture
Your brother recently joined the football team. He feels tired after each days practice and
is unable to continue with his homework. Is there a connection between his tiredness and
nutrition he takes? If yes, give reason, also design a healthy diet plan for him.
Answer:
from view,I will go with yes because it depends on the food he eats whether it is balanced or not. for example,if he eats only vitamin foods and carbohydrates there won't be enough energy for him go pass the day.
Yes, there is probably a link between your brother's dietary habits and his fatigue level.
Football practice can be a physically taxing and energy-intensive activity. Your brother may feel tired and struggle to maintain energy levels if he is not getting enough nutrition to support his increased energy expenditure. When creating a healthy diet plan for your sibling it is important to focus on providing adequate nutrition to support your sibling's athletic performance and recovery. Here is a dietary recommendation:
Include whole grains (such as brown rice, quinoa and whole wheat bread), fruits and vegetables in your diet to get enough carbohydrates to last you all day.Include sources of healthy fats, such as avocados, nuts, seeds and olive oil, to help supply essential fatty acids and keep you feeling full.Hydration: To maintain hydration levels, be sure to consume enough fluids before, during and after exercise.Snacks: To replenish nutrients and give you energy after exercise, eat healthy snacks, such as yogurt, mixed nuts, fresh fruit and granola bars.Encourage your sibling to prioritize nutrient-dense foods that offer a balanced balance of carbohydrates, proteins and fats, and to eat frequent meals, especially breakfast.
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How are organisms in the domain Archaea different from those in the domain
Eukarya?
Answer:
Eukaryotes have nucleus, Archaea do not have.
but Archaea have DNA that's not in nuclues.
Eukarya possess organelles in membrane whereby Archaea do not possess membrane around organelles.
Answer: Eukaryotes have a nucleous
Explanation:
What is the difference between a protein and a trait
Answer:
The Relationship Between Genes, Proteins, and Traits
A gene codes for a particular protein that is involved in the expression of a trait. Characteristics determined by single genes are called Mendelian traits.
A gene is a stretch of DNA on a chromosome that has the instructions for making a protein. Each chromosome has many genes with humans having over 22,000 genes in all. A gene's instructions for a protein are written in the three letter code I referred to before. A protein is a molecular machine that does a specific job.
Explanation:
NOT MY WORDS! I HOPE THIS HELPS!
Genes contain the information that determines traits that are characteristics or features that are given to us or inherited from parents. Each cell in the human body contains about 25,000 to 35,000 genes.
What are Genes?Genes are defined as the basic units of heredity passed from parent to child that are made up of sequences of DNA and arranged one after the other at specific locations on chromosomes in the nucleus of cells.
Genes are defined as functional units of heredity as they are made up of DNA where as chromosome is made up of DNA which contains many genes. Each gene has a special set of instructions for a particular function or protein-coding. Genes are responsible for heredity.
Thus, Genes contain the information that determines traits that are characteristics or features that are given to us or inherited from parents. Each cell in the human body contains about 25,000 to 35,000 genes.
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What are the measures of <1 and <2 Show your work or explain your answers.
Answer:
<1=105 <2=75
Explanation:
So 2 is 75 degrees because it's corrosponding with <6.
75+<1=180
-75 -75
<1=105
Where are the photoreceptors located Inside a human eye?
Answer:
○They are located in the retina.
The type of cell in your eye that
detects photons and sends them to
your brain.
They are found in the retina (the back layer of the eye). Rods and cones are
the two types.
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I need to know the rate of the volume change for each section along with the rate of photosynthesis
Explanation:
25 at under time min. over rate of volume change
How does variation in the environment affect natural selection?
Answer:
It effects the way that certain traits in a species evolve in an area due to being better for dealing with the environment more effectively.
Explanation:
This is legit how nature works. Please rate 5 stars.
O points
QUESTION 1
One of the primary concepts of biology is natural selection which is based on the principle of an organism s ability to adapt to their
surrounding environment. This concept also applies to all life on Earth, and it is certainly applicable to people in the workplace as
well. Thinking futuristic, to when you will have established your unique niche in the medical field, what traits do you possess that will give
you the ability to adapt and thrive within your workplace environment? Write a one paragraph well-written answer to the above question to
earn 10 points
Hi. This question requires a personal answer based on your assessment of your own abilities and qualities. However, I will provide an answer below and hope it serves as a model for you to be able to formulate your own answer.
One of my main characteristics that will be very useful in my work environment is patience. I believe that the medical field requires a lot of patience, as work environments can be very stressful, mainly because you have to deal with the most different types of people. My patience will allow me to work efficiently under pressure and will allow me to deal with the human being without affecting my work. Besides patience, I'm a very agile person. Medical work requires agility, especially when it is related to emergency care, where agility is essential for the patient's health.
You have an experience that causes a complex network of neurons to be built in your brain. This network is most likely a _____. (Mark the one best answer.) ❍ a receptive field❍ B disease❍ C memory❍ D motor pathwa
Answer:
a receptive feild
Explanation:
The complex network of neurons built in response to an experience is most likely a memory.
What is neuron?Neurons are specialized cells that are the basic building blocks of the nervous system. They are responsible for receiving, processing, and transmitting information through electrical and chemical signals.
Memories are encoded in the brain by the formation and strengthening of neural connections between neurons, also known as synaptic plasticity.
When we experience something new, this process of synaptic plasticity is triggered and neurons form new connections or strengthen existing ones to encode the information.
Over time, these connections can become consolidated into long-term memory.
Therefore, when a person has an experience that causes a complex network of neurons to be built in their brain, it is most likely a memory.
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Look at the map on the screen. List the region or countries the majority of African elephants inhabit.
Answer:
we need the picture
Explanation:
Which structure of the human female's reproductive system releases eggs in
a monthly cycle?
Answer:
ovaries
Explanation:
The ovaries produce and release eggs.
Answer:
The ovaries release eggs and hormones like estrogen.
Organism Clue
body
cell
1
a gamete of a housefly has 6
chromosomes
Haploid or Diploid
Answer:
Diploid
Explanation:
wrong question actually...
g Two closely related species of plant (A and B) hybridize to form a new species (C). Species A is diploid and has 8 chromosomes. Species B is tetraploid and has 20 chromosomes. -What type of whole genome duplication is this (autopolyploidy or allopolyploidy)
Answer:
allopolyploidy
Explanation:
Polyploidy is the condition by which a cell might have more than two chromosome sets that form homologous pairs. It might occur due to a failure or abnormality in cell division.
Autopolyploidy
Refer to a type of polyploidy in which an organism has more than two copies of homologous chromosomes. It results from the duplication of a group of chromosomes of the same species. Autopolyploid individuals have at least three groups of homologous chromosomes. Autopolyploidy is produced by the gamete fusion of the same progenitor - same species-, duplicating the number of chromosomes of diploid species. The autopolyploid cell has groups of homologous chromosomes. Autopolyploidy is produced mainly due to non-disjunction during meiosis.
Allopolyploidy
Refer to another type of polyploidy in which species have more than three sets of chromosomes in their cells. Allopolyploidy occurs when two different species mate, leading to the fusion of gametes that belong to different species and produce a new hybrid. The chromosomic complement has more than two copies of chromosomes. The hybrid is infertile with the parental species. The allopolyploid cells have chromosome groups that are not homologous.
In the exposed example two different species mate and produce a hybrid species.
The diploid number for the tasmanian devil is.
Answer:
14.
Explanation:
A Tasmanian Devil has a diploid number of chromosome which is 14 while on the other hand, there are 7 number of chromosomes in the sex cells. The sex cells i.e. sperm and egg has haploid number of chromosome so the number of chromosomes in sex cells of Tasmanian Devil is 7 while on the other hand, in the somatic cells or body cells there is diploid means double number of chromosome so the diploid number of chromosome for Tasmanian Devil is 14.
Ari drew a diagram to show organisms in an ecosystem.
A flowchart. Cycle 1: 1, Grass. 2, Grasshopper. 3, Shrew or Mouse. 4, Fox. Cycle 2: 1, Grass. 2, Mouse. 3, Fox or Snake. Cycle 3: 1, Grass. 2, Rabbit. 3, Fox.
What did Ari draw?
a food chain
a trophic chain
a food web
an energy web
Answer: Ari draw a food web.
Explanation:
A single ecosystem which contains all the food chains is called a food web.
In a food web each living thing present in a food web is a part of multiple food chains. Hence, food webs tend to represent the overlapping of food chains in that ecosystem.
The flow chart drawn by Ari represents that the living things present in cycle 1 are part of cycle 2 and cycle 3. Also, living things present in cycle 2 are part of cycle 1 and cycle 3.
A food chain is basically a single path where each organism is dependent of the other as a source of food without any overlapping.
Thus, we can conclude that Ari draw a food web.
Answer:
c
Explanation: