Answer:
The ventricles of the heart have thicker muscular walls than the atria. This is because blood is pumped out of the heart at greater pressure from these chambers compared to the atria.
Explanation:
hope this helps
Which roles are played by calcium ions in coordinating the activation of a muscle by motor neurons?.
Answer:
your answer would be b
Explanation:
Name one basic characteristic for classifying organisms.
Answer:
it is a kind of cell that has living organisms that are made up of another basic characteristic
Explanation:
hope this helps
Six layers of gray matter on top of a layer of white matter would describe: the limbic cortex. the basal ganglia. the neocortex (also known as the cortex). the cingulate cortex.
Answer:
the neocoretex
Explanation:
from wikipedia "The neocortex, also called the neopallium, isocortex, or the six-layered cortex, is a set of layers of the mammalian cerebral cortex involved in higher-order brain functions such as sensory perception, cognition, generation of motor commands,[1] spatial reasoning and language.[2] The neocortex is further subdivided into the true isocortex and the proisocortex."
HURRY
Why do you think scientists use all three kinds of evidence (embryonic, anatomic, and genetic) to determine relationships between organisms to see if ducks and platypus are related.
Scientists use all kinds of evidence in order to make sure that their claims are true.
Explain how differences in protein structure allow one protein molecule to recognize another protein molecule.
Answer:
The R group and chemical nature of each group restless in attractions and repulsions of certain amino acids
The drawings below represent two cell types from a rat. The adipocyte is a fat cell, and the astrocyte is part of the central nervous system.
(picture)
Which of the following best explains why the two rat cell types are different?
Choose 1 answer:
(Choice A)
Because the cells have undergone mitosis, the adipocyte and the astrocyte contain different genes.
(Choice B)
Because of differential gene expression, the adipocyte and the astrocyte produce different proteins.
(Choice C)
Because the cells are the result of a fertilization event, the adipocyte and the astrocyte contain different chromosomes.
The statement 'due to differential gene expression, the adipocyte and astrocyte produce different proteins' explains why the two rat cell types are different.
What is gene expression?Gene expression can be defined ad the differential process by which certain genes are transcribed in one cell type.
Gene expression leads to cellular specialization to perform specific works in the multicellular body.
Gene expression is a fundamental process for the development of multicellular organisms.
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what type of RNA is responsible for translation of mRNA
Answer:
In eukaryotes, noncoding RNA comes in several varieties, most prominently transfer RNA (tRNA) and ribosomal RNA (rRNA). As previously mentioned, both tRNA and rRNA have long been known to be essential in the translation of mRNA to proteins.
Explanation:
Which process in the nitrogen cycle releases nitrogen gas into the atmosphere?.
Answer:
Denitrification completes the nitrogen cycle by converting nitrate (NO3-) back to gaseous nitrogen (N2). Denitrifying bacteria are the agents of this process. These bacteria use nitrate instead of oxygen when obtaining energy, releasing nitrogen gas to the atmosphere
Assume that one of the disinfectant/antiseptics tested using the disc method had a clear zone of inhibition and to your surprise, you discover minute growth near the disc. What would explain this phenomenon
The presence of the minute growth near the disc signifies that the bacterial innoculum contains mutant microorganisms that are able to grow in the presence of toxic substances.
What are zones of inhibition?The sensitivity testing in a microbiology laboratory is done to determine the effect of antibiotics on various bacteria organisms
The zone of inhibition when a disk method is used signifies the area of media where bacteria are unable to grow, due to presence of a drug that impedes their growth.
If there are presence of minute growth near the disc, it means that the bacterial innoculum contains mutant microorganisms that are able to grow in the presence of toxic substances such as disinfectants.
If these mutant bacteria organisms are not cleared by the disk method, it means that they cannot be killed by the disinfectant/antiseptics that is being tested.
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Certain types of windows used in colder climates consist of two panes of glass separated by a gap of air. What is the advantage of this design?
The number of individuals of a population in a specific area is: a. carrying capacity c. limiting factor b. population density d. population capacity Please select the best answer from the choices provided A B C D
Answer:
The correct answer is B: population Density
Consuming ______ in amounts slightly higher than the RDA may help preserve muscle and bone mass in aging adults.
Consuming Protein in amounts slightly higher than the RDA may help preserve muscle and bone mass in aging adults.
What is protein?Protein is a complete substances that occur in nature and it consists of many Ami o acids bonded together by peptide bonds. Proteins occur in all living organisms and include many essential biological compounds such as enzymes, hormones, and antibodies.
Sources of protein include milk, meal,beans, eggs and so on.
Protein help to build and repair body muscles.
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Demonstrate how you will use Newton’s law to determine the gravitational force between the sun and any other planet and to explain why a planet’s speed changes with distance.
What evidence from the video supports this claim?
(Earth Science)
Answer:
Hi mate
Explanation:
From Newton law of GRAVITATION
Which sates
Every body in this universe attract every other body with a force that is directly proportional to product of there masses and inversely proportion to square of distance between their center
So from here we came to know that
[tex]f = \frac{m \times m}{ {r}^{2} } \times g [/tex]
Here G is universal constant of gravitation
From this formula we Can determine the force of attraction between two body
I only know about this question
PLEASE MARK ME BRAINLIEST IF MY ANSWER IS CORRECT PLEASE
The most effective sites for self-stimulation for reward are along the trajectory of the ______________ axons arising in the ventral __________ area and projecting to the forebrain.
Answer:
The answer is dopamine, tegmental
Explanation:
The most effective sites for self- stimulation for reward are along the trajectory of the Dopamine axons airising in the ventral Tegmental area and projecting to the forbiden.
true or false
the chromosomes of the body cells are paired?
Answer:
The answer is True.
Explanation:
We have 23 paired chromosomes.
Answer:
True
Explanation:
Because, all chromosomes of body cells are found in pairs.
What observable cellular process explains mendel’s law of segregation?.
The observable cellular process of the physical basis of Mendel's law comes from the first division of meiosis,This is further explained below,
To find the "What observable cellular process explains Mendel’s law of segregation?" we need to know more about Mendel’s law of segregation?
What observable cellular process explains Mendel’s law of segregation?According to Mendel's Law of Segregation, a diploid organism passes a randomly selected allele for a trait to its offspring, with each parent receiving one allele.
In conclusion, The first division of meiosis , is the physical basis of Mendel's law of segregation.
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Who is father of biology
Answer:
Aristotle is considered the father of biology...
Short speech on earth day for Grade 2
Answer:
Earth is one of the eight planets of our planetary group that rotates around the sun.
Earth is the main known planet that upholds life in the whole planetary group.
World Earth Day is commended on the 22nd of April consistently. It is to increment public attention to the Earth's economical climate.
World Earth Day features the significance of ecological assurance for the endurance of life.
It is accepted that the Earth should be 4.5 billion years of age.
Right around 70% of the outer layer of the Earth is covered with water. Thus, it is known as a blue planet and an extraordinary planet.
Earth has an air holding back 20% of the oxygen that aides in the endurance of living creatures.
Gases like oxygen, carbon dioxide, and nitrogen in the Earth's environment assist plants with developing.
Earth is spheroid in shape. It is critical contrasted with different planets like Mercury, Mars, Neptune, Pluto, and Venus.
Earth finishes its circle around the sun in 365 days. In such a manner, it makes a jump year once in four years.
Lichens breaking down rock into
usable soil occurs in which
type of
succession?
A. primary
B. aquatic
C. tertiary
Answer:
A. Primary
Explanation:
When lichens die, they decompose, adding small amounts of organic matter to the rock to make soil.
Which cell type is responsible for hcl production in the stomach?.
Answer:
Parietal cells
Explanation:
A situation where the bones are connected exclusively by ligaments, cords, or bands of fibrous tissue is a ________. gomphosis syndesmosis suture synchondrosis
Gomphoses are fibrous joints whose bones are joined by fibrous tissue, ligaments, cords, or bands.
What is gomphosis?They are unions that are verified by multiple collagen fibers, which extend between the two joint surfaces and constitute the periodontium.
These joints without mobility, characterized by the presence of fibrous tissue, are the articulation of the dental roots with the alveolar cavity in which they are housed.
Therefore, we can conclude that gomphoses are fibrous joints whose bones are joined by fibrous tissue, ligaments, cords, or bands..
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What happens if the use of groundwater exceeds the rate of replenishment?.
Your skin has natural sunscreen properties in the tropics but reduced UV absorption outside the tropics, leaving you susceptible to developing rickets or osteoporosis. You have ______ skin color.
Answer:
it should be a pale skin
Explanation:
Answer:
tan skin
Explanation:
Your skin has natural sunscrees properties in thr tropics but reduced UV absorption outside the tropics,leaving you susceptible to developing rickets or osteoporosis.you have tan skin colorwhat is the substance that makes up the cell wall
The cell wall is composed of a network of cellulose microfibrils and cross-linking glycans embedded in a highly cross-linked matrix of pectin polysaccharides
Cellulose, hemicellulose, polysaccharides and pectic substances
Explain how and why water travels through the four Earth systems as it moves through the water cycle.
Explanation:
It is a complex system that includes many different processes. Liquid water evaporates into water vapor, condenses to form clouds, and precipitates back to earth in the form of rain and snow. Water in different phases moves through the atmosphere (transportation).
In multiple sclerosis, the myelin sheaths around the axons of the brain and spinal cord are damaged and demyelination results. How does this disease manifest at the level of the action potential
Answer:
Action potentials move more slowly along the axon
Explanation:
it would help you, I think
When a few individuals start a new colony it most likely results in.
Answer:
Founders Effect
Explanation:
Occurs when a few individuals start, or found a new population. by chance, allele frequencies of the founders maybe different from allele frequencies of the population they left.
Some mushrooms from the genus Aminita are extremely poisonous. The toxins in these poisonous mushrooms enter the bloodstream through the digestive tract and then build up in the liver causing liver failure within a few days. Suppose a doctor suspects his patient has eaten a poisonous Aminita mushroom. What course of action do you think the doctor will most likely take? A. give the patient a strong diuretic in order to force water out of the patient's body B. induce vomiting in the patient C. administer immune system boosters to the patient D. mechanically purify the patient's blood (hemodialysis)
Answer:D mechanically purify the patient's blood (hemodialysis)
Explanation:
I just did that question
A cell membrane is very specific about what it allows across. How does this
help the cell?
OA. Transport proteins allow only enzymes to pass through the
membrane.
B. The cell works better when it contains fewer proteins.
C. It helps the cell absorb as many different molecules as possible.
OD. It is better for the cell if most molecules are prevented from
entering.
SUBMIT
Answer:
OA
Explanation:
because it's selectively permeable
What chemicals are in H20?
Answer:
Hydrogen and part oxygen
Explanation:
Water is composed of these two which makes the symbol H20