The true statement of chemical bonds is covalent bonds share electrons between two atoms.
A covalent bond is a type of interaction that involves one or more pairs of electrons (e-) being shared between two atoms.In a covalent bond, shared electrons are jointly attracted by both atomic nuclei.A double covalent bond occurs when four electrons are shared between two atoms, whereas a triple covalent bond involves the sharing of six electrons.An ionic bond is when one atom gives its electron to another atom, e.g., during the formation of sodium fluoride.In conclusion, covalent bonds share electrons between two atoms.
Learn more in:
https://brainly.com/question/11674395?referrer=searchResults
The Endosymbiotic Theory proposes that the organelles distinguishing eukaryote cells evolved through symbiosis of individual single-celled prokaryotes. Refer to the diagram provided. What is the BEST explanation for what is happening in step C?
A) A bacterial cell is engulfing a mitochondria from its environment.
B) A cell engulfs a cyanobacteria cell, without digesting it, allowing it to become an endosymbiont, producing sugars within the cell.
C) A prokaryotic cell engulfs other prokaryotic cells allowing the cell to become more complex, incorporating the new cells' organelles.
D) A cell engulfs an aerobic bacterial cell, without digesting it, allowing it to become an endosymbiont, giving the cell a survival advantage.
Answer: the answer is d
Explanation:
i took that test
According to the Endosymbiotic Theory, the statement that represents the best explanation for what is happening in step C is as follows:
A cell engulfs an aerobic bacterial cell, without digesting it, allowing it to become an endosymbiont, giving the cell a survival advantage.Thus, the correct option for this question is found to be D.
What is Endosymbiotic theory?An Endosymbiotic theory may be characterized as a type of theory that demonstrates the evolution of a eukaryotic cell from a prokaryotic cell through the mechanism of engulfment. It typically observes numerous cell organelles in eukaryotic cells as descendants of endosymbionts.
The theory of endosymbiosis is generally given by Lynn Margulis. This theory was terminated in two steps. One governs the process of evolution of mitochondria while the other represents the origination of chloroplasts.
When anaerobic predator cell engulfs α-proteobacteria and gives rise to mitochondria. When this mitochondrion cell then engulfs cyanobacteria, it eventually leads to the formation of the chloroplast.
Therefore, the correct option for this question is found to be D.
To learn more about Endosymbiosis theory, refer to the link:
https://brainly.com/question/1698852
#SPJ3
How do global winds affect climate?
2. Two organisms are shown in the diagram below.
2.SWF19.2
M2 603
STABS
2
The arrows in the diagrams indicate structures that help these organisms to
(1) carry out respiration
(3) obtain food
(2) carry out photosynthesis
(4) excrete wastes
Describe the meaning of parsimony and give an example.
Answer:
(Not wanting to spend or use something)
Explanation:
Like someone or something really cheap, not wanting to use something in a way that it is a waste.
A man's car broke down, he didn't want to spend any money repairing it so he did it himself.
Or could just mean being careful with your resources.
Useful materials
Harmful materials
Answer the following:
1. Which materials are useful? When do they become useful?
2. Which materials are harmful? When do they become harmful?
5
Answer:
Explanation:
The materials that are useful are bamboo, plastic, steel, concrete, fabric , textiles, stones, brick, repurposed wood e.t.c.
Materials become useful, when those that uses it use it right and to achieve a specific purposes base on the properties the materials poseses.
The materials that are harmful include asbestos, Mercury containing devices, lead based paints, household hazardous waste, light system, mold, refrigerant containing system.
Materials become harmful when they contain substances or properties that is dangerous or can harm human beings and cause damage to cells.
Nervous tissue is made up of neuroglia and what other type of cell?
THIS ONE neurons
sarcomeres
ovules
stem cells
Nervous tissue transmits messages throughout the human body by
contracting.
providing protection.
THIS ONE conducting impulses.
absorbing vital nutrients.
Answer:
- Nervous tissue is made up of neuroglia and neurons.
- Nervous tissue transmits messages throughout the human body by conducting impulses.
Explanation:
The nervous system is in charge of the control of all organic functions, so it has the central and peripheral nervous systems. This system is made up of a highly specialized tissue, the nervous tissue.
The nervous tissue is composed of neurons —the functional unit— and the neuroglia, a tissue that provides support and nutritional supply. The neuron has a body or soma, and extensions called axons and dendrites. These neuronal prolongations are those that allow the transmission of information by means of electrical signals, also called conducting impulses.
About the options for each approach:
1. Nerve tissue and its components
Sarcomero is the muscle fiber, the functional unit of the muscles. Ovules are female sex cells. Stem cells are undifferentiated cells with the ability to form specialized cells.2. Nervous tissue transmits messages
Contracting is a function of cells such as muscle fibers.Providing protection the lining epitheliums have a protective function, in addition to the cells of the immune system that combat agents foreign to the body.Absorbing vital nutrients function of the intestinal epithelium.Answer:
neurons
Explanation:
What kind of protective measure is it when a skunk uses body odor to protect itself from predators?
select the correct order that energy flows through an ecosystemtem
Which of the following is NOT a function of mitosis?
Group of answer choices
Growth and development of multicellular organisms.
Reproduction of single celled organisms.
Development of sperm and egg cells.
Tissue growth and repair.
Answer:
I believe the best answer is somatic cell
The process during which a preexisting cell.splits to form two cells is called. Cell inhibitors Phosphate groups Cell growth Cell division
Answer:
Mitosis is a process of nuclear division in eukaryotic cells that occurs when a parent cell divides to produce two identical daughter cells. During cell division, mitosis refers specifically to the separation of the duplicated genetic material carried in the nucleus. Mitosis is conventionally divided into five stages known as prophase, prometaphase, metaphase, anaphase, and telophase. While mitosis is taking place, there is no cell growth and all of the cellular energy is focused on cell division.
Answer:
cell division on edge2020
Explanation:
4. Explain why water is needed in the light reactions.
Answer:
Light reactions occur when plants synthesize food from carbon dioxide and water, referring specifically to the part of energy production that requires light and water to generate electrons needed for further synthesis. Water provides the electrons by splitting into hydrogen and oxygen atoms.
Explanation:
What would happen if there’s a blockage in the urethra? aka structure D
Plants sustain continual growth in length by repeated cell division within these types of regions . A. Antheridia B. Archigonia C. Sepals D. Meristems E. Leave
Answer:
D. Meristems
Explanation:
Like every other living thing, plants also undergo growth in size (length and width). This growth in length is a characteristics of the cellular division that occurs in a region called MERISTEMS. Meristems are those part of a plants that contain tissues whose cells are always young and actively involved in cell division.
The cells in the MERISTEMS called TOTIPOTENT, which are found at the top or apices of root, shoot etc are involved in continual division, hence, the regions they are found visibly undergoes changes in length as cells multiplies in that region.
Question 1 of 5
A teacher showed this animal to students on a field trip. Which tool will allow
the students to best see the animal up close?
A. Graduated cylinder
B. Hand lens
C. Tape measure
D. Notebook
Answer:
Hands Lens
Explanation:
Answer:
hand lens
Explanation:
got 100 on test
Kyle is holding a bag of 250 jelly beans. When Mark takes out two jelly beans, Kyle is not able to tell a difference.
This illustrates
O Weber's law
absolute threshold
sensory adaptation
signal detection theory
Answer:
Sensory adaptation.
Explanation:
Hello.
In this case, after the removal of the two jelly beans, Kyle has now 248 jelly beans which is a slightly neglectable difference, it means that the answer is sensory adaptation since it refers to a decrease in the sensitivity to a stimulus due to the constant exposure to it, which also reduces our awareness when a neglectable change happens.
This is proved since Kyle was constantly holding the bag so a difference of two jelly beans will be almost neglectable making the sensory adaptation the reason behind this.
Regards.
I need help asap please help me I will give brainlist
Answer:it will wither
Explanation:
any parasite will kill living organimes
what is a controlled experiment
Answer:
A controlled experiment is a test that tests one variable at a time.
~I hope I helped you! :)~
Answer:
It is an experiment with carefully controlled conditions.
Explanation:
PLEASE HELP FAST!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!.......... please help
complete the flow of deoxygenated blood other parts of the body (a)_____(b)_____tricuspid valve (c)______(d)_______capillary bed of the lungs(alveoli)
Answer:
The correct flow is - the body (a) Venules/vein/vena cava (b) Right atrium tricuspid valve (c) Right ventricle (d) Pulmonary artery, capillary bed of the lungs(alveoli)
Explanation:
Deoxygenated blood is moved from the tissues to the venules, veins or vena cava to the right atrium chamber and move through the tricuspid valve present in between both right chambers right atrium and right ventricle.
From the right ventricle, the deoxygenated blood is pumped into the pulmonary artery that takes the blood to the lungs more specifically to the capillary bed of lungs.
Thus, the flow is - the body (a) Venules/vein/vena cava (b) Right atrium tricuspid valve (c) Right ventricle (d) Pulmonary artery, capillary bed of the lungs(alveoli)
What feature below is not found in Cnidaria?
A) Stinging Cells
B) Aristotle's lantern
C) Radial Symmetry
D) Two-layerd embryonic tissue.
Answer:
b
Explanation:
All Cnidaria are aquatic, mostly marine, organisms. They all have tentacles with stinging cells called nematocysts that they use to capture food. Cnidarians only have two body layers, the ectoderm and endoderm, separated by a jelly-like layer called the mesoglea.Radially Symmetrical.
The feature that is not found in Cnidarian among the options would be Aristotle's lantern. Thus, B would be the right option.
The cnidarians represent a phylum in the animal kingdom with the following characteristics:
radial symmetry. The body can be divided into 2 halves along several planes.presence of enteron or gastrovascular cavitypresence of 2-layered embryonic tissue. In other words, they are diploblasticexhibitions of 2 body forms - polyp and medusa. Hence, they are said to be polymorphicpoorly developed nervous systemtissue level of body organizationIn other words, there is nothing like Aristotle's lantern as far as the Cnidarians are concerned.
More on Cnidarians can be found here: https://brainly.com/question/3742497
Men and women were originally created by God as extremely intelligent beings. True or False
Answer:
True
Explanation:
Organic semiconductors are a new technology that scientists are considering for the next generation of solar
panels. Manufacturers want to produce efficient semiconductors at a low cost. Which type of organic
semiconductors would be most desired as a solar panel technology?
The specific properties of the most desired organic semiconductors for solar panel technology may evolve as advancements are made in the field.
In the context of solar panel technology, the most desired type of organic semiconductors would typically possess the following characteristics:
High Efficiency: The organic semiconductors should have a high power conversion efficiency, meaning they can efficiently convert sunlight into electricity. This is crucial for maximizing the electricity output of solar panels.
Tunable Bandgap: Organic semiconductors with a tunable bandgap would be advantageous. The bandgap determines the range of light wavelengths that can be absorbed by the material. A tunable bandgap allows for optimization to match the solar spectrum, enabling better absorption of sunlight and improved overall efficiency.
Long Operational Lifetime: The organic semiconductors should be stable and exhibit a long operational lifetime. Solar panels are expected to endure outdoor conditions for many years, so the materials used should be resistant to degradation, such as from exposure to UV radiation or moisture.
Scalability and Low Cost: Manufacturers aim to produce organic semiconductors on a large scale at a low cost. Therefore, desirable organic semiconductors should be readily synthesized using cost-effective methods and be compatible with high-volume manufacturing processes.
Environmental Friendliness: Organic semiconductors that are environmentally friendly and have low toxicity are desirable. This is aligned with the goal of sustainable and clean energy technologies.
It is important to note that the field of organic semiconductor research is still evolving, and scientists are continually working to improve the performance and characteristics of these materials.
for similar questions on semiconductors.
https://brainly.com/question/3537004
#SPJ8
what substances are combined with sunlight in the process of photosynthesis
Answer:
H2O and O2
Explanation:
water and oxygen is required for photosynthesis
When labeling the axes of a graph, the independent variable is always plotted on the y-axis.
Answer:
False
Explanation:
The “independent” variable goes on the x-axis (the bottom, horizontal one) and the “dependent” variable goes on the y-axis (the left side, vertical one).
describe what occurs between water molecules in hydrogen bonding
Answer:
Explanation: A hydrogen bond in water occurs between the hydrogen atom of one water molecule and the lone pair of electrons on an oxygen atom of a neighboring water molecule The H atom nearly acts as a bare proton, leaving it very attracted to lone pair electrons on a nearby atom
What enzyme connects complementary bases to the DNA?
Answer: Catalysts
Explanation:
Answer:
DNA polymerase, which joins nucleotides to synthesize the new complementary strand.
Explanation:
Complete the passage to describe the relationships among gravitational force, mass, and distance.
The gravitational force between two objects is
related to the product of the masses of the objects, and
related to the square of the distance between the centers of the objects.
Answer:
Directly, and inversely.
Explanation:
Answer:
Directly, and inversely.
Explanation
what amount of chromosomes do you have after dna replication?
Answer:
The amount of chromosome remains the same after DNA replication
Explanation:
The amount of DNA doubles after replication but the amount of chromosome remains the same.
Which of the following is not a consequence of moving from underground mining to surface mining?
a.
increased land degradation
b.
increased water and air pollution
c.
mining collapses
d.
changes to the landscape
Mining collapses is not a consequence of moving from underground mining to surface mining. Thus, the correct option is C.
What are the consequences of mining?Surface mining also known as strip mining can severely erode the soil or reduce its fertility. Mining results in polluting waterbodies or drain underground water reserves. It scar or altar the landscape, damage the roads, homes, and other structures and also destroy the wildlife.
When the minerals are close to the surface of earth, the earth is removed, this causes the destruction to the shape of the land and the flora and fauna which are living in that particular area. Surface mining destroys all the plant life in the area which the mine occupies.
Therefore, the correct option is C.
Learn more about Mining here:
https://brainly.com/question/14277327
#SPJ6
Most cells can only be seen with:
a telescope
a microscope
the naked eye
a magnifying glass
Answer: a microscope
Explanation:
Most cells can only be seen with the help of a microscope
