Answer:
TRUE!!!
Explanation:
Artificial selection, often known as "selective breeding," is when people choose animals or agricultural products based on desirable features, hence it is a true statement.
What is Artificial selection?Different phenotypes can be introduced into an organism via genetic changes that change gene activity or protein function.
Natural selection is the process of identifying advantageous traits in plants and animals and taking actions to improve and perpetuate those traits in subsequent generations.
If a trait is advantageous and aids an individual in surviving and reproducing, the genetic variation is more likely to be passed to the next generation.
Therefore as opposed to letting the species evolve naturally without human intervention, as in the natural selection, hence it is a true statement.
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I am failing in school and i need help with this it is a home work defineMaritime
Answer:
Maritime transport and fluvial transport, or more generally waterborne transport, is the transport of people or goods via waterways. Freight transport by sea has been widely used throughout recorded history.
Explanation:
The gradual ______________________ of one plant community by another through natural processes over time.
Answer:
The gradual replacement of one plant community by another through natural processes over time.
Explanation:
Succession is a process dominated by plants, in which communities change as a function of the changes experienced by plant communities, that is, it is the natural evolutionary process by which some species gradually take the place of others less adapted to the environment. Ecological succession tries to predict the changes that occur in ecosystems over long periods of time, that is, the temporary directional change in the composition or structure of a community over time.
1. Name the two major divisions of the nervous system; list the organs/tissues found in each.
2. Name the two divisions of the peripheral nervous system (PNS), and give the primary function of each.
3. List at least seven stimuli that would trigger sensory receptors.
4a) Choose one stimulus from Q. 3, and describe in a complete sentence how the stimulus would travel to the central nervous system (CNS).
4b) Describe in 1-2 complete sentences how the motor commands from the CNS would travel to the effector target organ or tissue. Tell if the motor command will travel via the somatic or autonomic nervous system; explain why.
2
5. Choose another stimulus from Q. 3 that will initiate a CNS motor response that will travel via the other motor division (SNS/ANS) of the peripheral nervous system (PNS) described in Q. 5. Explain your reasoning.
Answer:
1.Structural Divisions of the Nervous System. The nervous system can be divided into two major regions: the central and peripheral nervous systems. The central nervous system (CNS) is the brain and spinal cord, and the peripheral nervous system (PNS) is everything else.
2.Like the nervous system as a whole, the peripheral nervous system also has two divisions: the sensory division and the motor division. The sensory division of the PNS carries sensory information from the body to the central nervous system.
3.Sensory receptors with corresponding stimuli to which they respond.
Receptor Stimulus
Apmullae of Lorenzini (primarily function as electroreceptors) Electric fields, salinity, and temperature
Baroreceptors Pressure in blood vessels
Chemo receptors Chemical stimuli
Electromagnetic radiation receptors Electromagnetic radiation
Electroreceptors Electrofields
Hydroreceptors Humidity
Infrared receptors Infrared radiation
Magnetoreceptors Magnetic fields
Mechanoreceptors Mechanical stress or strain
Nociceptors Damage or threat of damage to body tissues (leads to pain perception)
Osmoreceptors Osmolarity of fluids
Photoreceptors Visible light
Proprioceptors Sense of position
Thermoreceptors Temperature
Ultraviolet receptors Ultraviolet radiation
Are gender traits completely a result of societal expectations?
Answer:
No. Gender traits in humans are largely determined by biophysical processes. There seems to be a vocal political faction that is trying to convince people in the name of liberty and equality that gender traits are completely learned, and therefore arbitrary. But this claim disagrees with scientific evidence. In general, boys play more with cars and girls play more with dolls not because their parents are perpetuating outdated gender stereotypes, but because their brain is telling them to. This fact does not mean that boys have to play with boy toys, or that boys who play with dolls aren't really boys. It is just a scientific observation about average behavior and its link to fetal development.
I need this done by 6:30 can you please help me I don’t know the answers
A scientist is treating rice plants with a chemical that causes mutations. What is the possible benefit of this treatment? A. clones B. transgenic plants C. increased genetic variation D. increased hybridization
Answer:
Explanation:
Its either B or C, look closely at the question and at the answers, you can narrow it down from then.
A scientist is treating rice plants with a chemical that causes mutations. The possible benefit of this treatment is transgenic plants. Hence, the correct option is B.
What is mutation?A mutation is a change in the DNA sequence that makes up a gene. It can result from errors in DNA replication or exposure to mutagenic agents such as chemicals or radiation, or from spontaneous changes.
Transgenic plants are the plants that have been genetically modified to express specific traits or traits that are not found in the original species. This is done by introducing foreign DNA or chemicals that change the plant's genome. This process is called genetic engineering.
Transgenic plants have become an important tool in agriculture and biotechnology, providing new opportunities for food production, environmental protection and economic growth. Hence, the correct option is B.
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What would be the best reason for
finding a bunch of broken rocks
underneath a melted glacier?
A. The pressure of the glacier crushed
them
B. Water seeped into the cracks and
expanded as it turned to ice
C. Modern day animals moved the
rocks around
D. Dinosaurs broke them.
Answer:
B. Water seeped into the cracks and
expanded as it turned to ice
Explanation:
This is because as the glacier melts, water seeps into cracks on the rock underneath the glacier. As this water seeps into the cracks, it would be turned into ice. As the ice expands, it causes the rock to break up into pieces.
This process is called mechanical weathering.
PLEASE HEL ME!!!!!!!!!
Answer:
the accurate one is layer C is younger then layer A
Explanation:
Answer:
I think it would be safe to say that the answer is:
Layer C is younger than layer A.
Explanation:
Looking at the graph it's shown D-A youngest to eldest and knocking out the fact that Layer D is above C and it appears B is not the eldest layer, I'm sure the first point is the answer!! I hope this helped!
what is photosynthesis
Answer:
Photosynthesis, the process by which green plants and certain other organisms transform light energy into chemical energy. During photosynthesis in green plants, light energy is captured and used to convert water, carbon dioxide, and minerals into oxygen and energy-rich organic compounds.
[tex]\sf{\underline{\underline{PHOTOSYNTHESIS }}}[/tex]
Photosynthesis is a chemical reaction that takes place inside a plant, producing food for the plant to survive.Carbon dioxide, water and light are all needed for photosynthesis to take place.Photosynthesis happens in the leaves of a plant.
What is a claim? (what does it answer?)
Answer:
A claim is mostly used in an Argumentative essay and it answers the topic or the prompt of an essay. For example,you can choose a side if you agree or don't agree.
Hope this helps.
Explanation:
A Before prophase II begins, does the DNA in the cell duplicate itself?___________
B. During metaphase II, do homologous chromosomes pair up as in metaphase I?__________
C. How does anaphase II differ from anaphase I?_________
D. At the end of anaphase II , how many chromatids are on each side of the cell ?___
E. After cytokinesis , how many cells have been formed from the parent cell ?_______
F. Are all of the cells the same size ? _______
Answer:
for F no
Explanation:
no cells are the same because all people ate different and can not be precisely the same as cells.
In three to four sentences, explain the mpact of the spread of Middle Age culture had on ts esstern neightors
Why is it important we reduce the amount of greenhouse gases we
put into the atmosphere?
Answer:
Mhm
Explanation:
Without any greenhouse gases, Earth would be an icy wasteland. Greenhouse gases keep our planet livable by holding onto some of Earth's heat energy so that it doesn't all escape into space. This heat trapping is known as the greenhouse effect. ... Putting so much new CO2 into the air has made Earth warmer.
Answer:
If we don't reduce the emissions of greenhouse gasses, we will end up have climate change. As the world heats up, the water levels rise, the polar ice caps melt and costal cities will end up under water at somepoint. Also animals that can't handle the temp changes can die.
How does DNA in cells determine an organism's complex traits?
A. DNA contains codes for proteins, Which are necessary for the growth and functioning of an organism
B. DNA separates into long single strands that make up each part of an organism
C. DNA produces the energy an organism needs in order to grow
D. DNA folds into the nucleus of each of the cells of an organism
PLEASE HELP!!
Answer:
A. DNA contains codes for proteins, Which are necessary for the growth and functioning of an organism
Explanation:
which of the following is a density dependent limiting factor?
It is important to keep the lines of communication open because it will ______. a. Make sure people choose your side in a conflict b. Prevent negative emotions from building c. Cause people to do what you want d. Lead to an increase in your salary Please select the best answer from the choices provided A B C D
Answer: B.
Explanation: Edge 2022
which of the following is problem created when a cell becomes to large
Answer:
As a cell increases in size, it usually does not make extra copies of DNA. If a cell became too large, an "information crisis" would occur. The cell has more trouble moving enough nutrients and wastes across the cell membrane.
Explanation:
This is for science
What are air pressure, humidity, clouds, and temperature called?
a elevation pressure
b elementary aspects
c elements of weather
d elements of climate
What protein protects the chromosomes during DNA replication?
Answer:
Telomeres
Hope this helps :)
Answer:
The answer is Telomeres.
Explanation:
Figure 4.19. Structure of a telomere. Telomere DNA loops back on itself to form a circular structure that protects the ends of chromosomes. Telomeres play a critical role in replication of the ends of linear DNA molecules.
Hope this helps!! ;)
The sequence of DNA below is part of a gene. How many amino acids are coded for by this segment?
5 ATTAGTCCGTAC 3
A. 2
B. 3
C. 4
D. 5
Answer:
b
Explanation:
Animals are living things just like human beings.The animals live in a group of various reasons.They also also help each other.While some animals are shy some are friendly.We must be kind to them.
Answer:
Yes.
Explanation:
Yes, we must be kind to them and provide protection to them because they are also the member of this planet and they have equal right to live on this earth. These animals are very important for our environment and ecosystem because they provide various benefits to the human beings such as provides food, control harmful parts of ecosystem and increase beautification of the environment.
C6H12O6+6O2→6H2O+6CO2
In the above equation, glucose is broken down during cellular respiration to produce carbon dioxide and
Select one:
a.
ammonia.
b.
water vapor.
c.
oxygen gas.
d.
sucrose.
Answer:
The answer is b. water vapor
Explanation:
I literally just did this question in a benchmark
Which of the following processes is NOT a physical or chemical change?
a. crushing
b. weighing
c. melting
d. passing electric current
Answer:
b
Explanation:
doesn't change anything
Which shows the levels of organizational hierarchy listed from least complex to most complex?
O organism, population, community
O species, ecosystem, community
O population, community, species
O organism, community, population
Describe some of the reasons for exploring the mid-Cayman ridge.
Answer:
Life on Earth goes back almost 4.1 billion years, but photosynthesis as characterized by cyanobacteria only appeared around 3.5 billion years ago (Ga). Since life on Earth predates photosynthesis, the exploration of this deep-water environment that lacks any source of light could provide information on what those life forms looked like.
Explanation:
This was the answer on edge
The major reason for exploring the mid-Cayman ridge is to provide
information on what those life forms looked like.
What is Photosynthesis?This is the process in which plants manufacture their food in the presence
of sunlight and other compounds.
The mid-Cayman ridge which is present in a deep water environment has
lacks any source of light has some life-forms present. The exploration was
to find out the type of life forms present and how they appear.
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PLEASE HURRY!!!! PLEASE!!!!!!!!!What is different about the way people get energy as opposed to plants?
A. People get their energy from food, whereas, plants convert energy from the sun through a process know as photosynthesis.
B. People get energy from jumping around.
C. Plants and people get energy through the same means.
D. Plants eat zombies to get their energy, whereas, people eat pizza.
any # answer is validasapp
Answer:
#6
Explanation:
Radioactive dating technique
To confirm the ages obtained with magnetic records, and get an absolute age of the seafloor, scientists use the radioactive dating technique. When the lava solidifies at the ridges to form the new seafloor, radioactive elements coming from the mantle are trapped in it.
Which statements accurately describe fermentation? Select two options.
Oxygen is present during this process.
Cells may convert pyruvic acid to lactic acid.
NAD+ is converted to NADH.
Fermentation is an anaerobic process.
Additional ATP is produced after glycolysis.
Answer:
The answers are the second and fourth ones.
Explanation:
I did the assignment.
The statements that accurately describe fermentation are cells may convert pyruvic acid to lactic acid, and fermentation is an anaerobic process. The correct options are B and D.
What is fermentation?Fermentation is an anaerobic chemical process that breaks down molecules like glucose. More specifically, fermentation is the bubbling that happens during the creation of wine and beer, a procedure that has been around for at least 10,000 years.
It is different from aerobic respiration because it occurs in the absence of oxygen and aerobic respiration occurs in the presence of oxygen. The product of fermentation is lactic acid, which is produced from pyruvic acid.
Thus, the correct options are: B, Cells may convert pyruvic acid to lactic acid, and D, Fermentation is an anaerobic process.
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Which of the following are predators? There may be more than one answer.
cat
bee
rabbit
spider
snake
lion
Answer:
Cat, Spider,Snake,lion
Calculate the mass of an object whose weight is 400 N and acceleration due to gravity is 10 m/s2
Answer:
40kg
Explanation:
F=M*A
M=F\A
M=400\10
M=40kg
The mass of an object whose weight is 400 N and acceleration due to gravity is 10 m/s2 is 40 kg.
What is acceleration due to gravity?The net acceleration that objects get as a result of the combined action of gravity and centrifugal force is known as the Earth's gravity, or g.
It is a vector quantity whose direction, strength, or magnitude match a plumb bob.
According to Newton's second law, an object's acceleration is inversely proportional to its mass and directly connected to the net force. An object's acceleration is determined by two factors: force and mass.
We know that,
F = m x g
m = f/g
Where,
F = force
m = mass
g = acceleration due to gravity
Given that,
F = 400N.
g = [tex]10m/s^2[/tex]
So,
m = 400/10
m = 40 kg.
Thus, the mass is 40 kg.
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