Answer:
c. The cells of all organisms contain DNA that is housed in a membrane-bound nucleus.
Explanation:
DNA is the genetic material found in the cells of living organisms. Among the characteristics of the DNA that makes up the genetic code, it is said to be nearly universal though. DNA is said to be the "blueprint of life".
This means that the DNA sequence that encodes protein and useful information is the same in almost all living organisms. Hence, the statement that "cells of all organisms contain DNA that is housed in a membrane-bound nucleus is the" justification that fact that all organisms share some basic features and life processes is used by biologists to explain the idea that all life.
Answer:
the cells of all organisms share common metabolic process such as cellular respiration
Explanation:
Most yellow jacket wasps are unable to survive the winter. Typically, only the queen and a few other wasps are able to survive the cold by hibernating.
Which ecological concept best categorizes weather (i.e., temperature) as a limiting factor in yellow jacket wasp survival?
population birth rate
O population death rate
Odensity-dependent factors
O density-independent factors
Answer: density-independent factors
Explanation:
The ecological concept that best categorizes weather (i.e., temperature) as a limiting factor in yellow jacket wasp survival is referred to as density-independent factors.
Density-independent factor, is also referred to as limiting factor, and it simply means the things that have an impact on the population of the living things in a particular area without taking into consideration of the density of the population for the area e.g food limitation, weather conditions, pollutants, fire etc.
Select all that are true. A short tandem repeat (STR):
A. Is a repeated sequence of DNA within a gene coding sequence
B. Can only be identified through restriction enzyme digest analysis
C. Is a repeated sequence of DNA in a non- coding sequence
D. Can be composed of a variable number of repeats in different people
E. Is a mutation in a gene
Answer:
C. Is a repeated sequence of DNA in a non- coding sequence
D. Can be composed of a variable number of repeats in different people
Explanation:
Short Tandem Repeats (STRs) are short DNA motifs, i.e., short nucleotide repeat units (generally 2-7 base pairs in size) that may have a different number of repeats among individuals (alleles). Polymorphic STR sequences are very useful genetic markers and therefore they are used for different purposes, e.g., for constructing genome linkage maps, identification of individuals and/or populations, paternity testing, etc. For example, in the USA, the Combined DNA Index System (CODIS) is a databank that stores different DNA profiles based on 13 core STR loci which are used in forensic identity testing.
Human germ cells in the testes and ovaries begin with 46 chromosomes (23 pairs). How many does
each sperm or egg cell end up with? (sperm and eggs are generated by meiosis)
(will mark brainiest!!!!)
Answer: 23 chromosomes each.
Explanation: meiosis is sometimes called ‘reduction division’. Both male (sperm) and female (egg) gametes are haploid, that is, with a single set of 23 chromosomes
What is an oxidation reaction?
A. A reaction in which an atom gains 1 or more protons
B. A reaction in which an atom loses 1 or more protons
C. A reaction in which an atom loses 1 or more electrons
D. A reaction in which an atom gains 1 or more electrons
(Answer is C)
Answer:
C
Explanation:
Answer: in an oxidation reaction an element loses one or more electrons
Explanation:
An oxidation reaction was originally defined as combining an element with oxygen, e.g. 2Ca + O2 —> 2CaO
Now we consider an oxidising agent as an electron acceptor, so the reaction need not include oxygen, e.g. Ca + S —> CaS. Ca loses electrons to S.
What happens within the Sun that creates energy?
Answer:
A solar flare?
Explanation:
Answer:
The sun generates energy from a process called nuclear fusion.
Explanation:
During nuclear fusion, the high pressure and temperature in the sun's core cause nuclei to separate from their electrons. ... The radiant energy travels to the Earth at a speed of 186,000 miles per second, the speed of light.
Pyruvate dehydrogenase deficiency is a genetic disease most commonly linked to a mutation in the a -subunit of the mitochondrial enzyme that causes the enzyme to cease functioning. As a result of the mutation, affected individuals build up dangerous amounts of lactic acid. Which of the following best explains the buildup of lactic acid in individuals with the mutation?
a. Cells use lactic acid to shunt electrons from pyruvate to the electron transport chain in the mitochondria.
b. Cells undergo glycolysis because there is a buildup of pyruvate in affected individuals.
c. Cells cannot transport pyruvate to the mitochondria in the absence of pyruvate dehydrogenase activity, so the pyruvate is broken down to lactic acid and ethanol
d. Cells undergo fermentation because pyruvate cannot be metabolized to proceed into the Krebs cycle.
Answer: The correct option is D ( Cells undergo fermentation because pyruvate cannot be metabolized to proceed into the Krebs cycle).
Explanation:
Pyruvate dehydrogenase is the enzyme that converts pyruvate to acetyl CoA which enters the Krebs cycle in glucose metabolism. The deficiency of Pyruvate dehydrogenase can be caused by genetic origin most commonly linked to a mutation in the a -subunit of the mitochondrial enzyme that causes the enzyme to cease functioning. As a result of the mutation, affected individuals build up dangerous amounts of lactic acid.
The increase in the level of lactic acid occurs due to the Increased action of lactate dehydrogenase enzyme. In the absence of Pyruvate dehydrogenase enzyme, the level of blood pyruvate increases. Excess pyruvate is then converted to lactic acid by lactate dehydrogenase enzyme in a process called lactic fermentation. This results in a buildup of lactic acid in the blood leading to a condition called lactic acidosis .
Therefore, cells undergo fermentation because pyruvate cannot be metabolized to proceed into the Krebs cycle.
1. creep : erosion ::
a. walk : run
b. elm : tree
c. weathering : slump
d. pollution : ocean
Answer:
C.
Explanation:
Weathering refers to creep; and slump would refer to erosion.
Maybe, but I am not 100%
But if so, please mark brainlest!
What is Homeostasis
Its the tendency toward a relatively stable equilibrium between interdependent elements, especially as maintained by physiological processes.
Arrange the steps in the order that they occur during viral infection and replication.
a. Reverse transcriptase synthesizes DNA complementary to viral RNA.
b. Viral proteins assemble around viral RNA and reverse transcriptase.
c. New viruses acquire an envelope as they exit the host cell by exocytosis.
d. Viral genes are transcribed, and translation produces viral proteins.
e. HIV envelope proteins bind to host cell receptor and coreceptor.
f. Double-stranded DNA is incorporated into host cell's DNA.
g. Host cell engulfs HIV particle, and enzymes remove viral protein coat.
Answer:
e. HIV envelope proteins bind to host cell receptor and coreceptor.
g. Host cell engulfs HIV particle, and enzymes remove viral protein coat.
a. Reverse transcriptase synthesizes DNA complementary to viral RNA.
f. Double-stranded DNA is incorporated into host cell's DNA.
d. Viral genes are transcribed, and translation produces viral proteins.
b. Viral proteins assemble around viral RNA and reverse transcriptase.
c. New viruses acquire an envelope as they exit the host cell by exocytosis.
Explanation:
The human immunodeficiency virus (HIV) is a retrovirus (genus Lentivirus) whose genetic material is a positive-sense single-stranded RNA. HIV is known to infect HIVcells of the human immune system such as, for example, macrophages, T cells, dendritic cells, etc., eventually leading to the acquired immunodeficiency syndrome (AIDS). Within host cells, the HIV genome is reverse transcribed into DNA by using a specific enzyme called reverse transcriptase. Then, this DNA is integrated into the genome of the host cell, replicating when the host cell replicates. Moreover, the integrated HIV genome can also be transcribed to produce RNA and proteins capable of infecting new cells.
PLZZZ HELP ASAP!!! Will give BRAINLIST
How can an understanding of alcohol's effects on the nephron be used to explain many of the symptoms of a hangover due to over consumption of alcohol? (headache, thirst, fatigue, rapid heartbeat, memory loss). Hint: this is both an endocrine & excretory/water balance question.
Complete the genotypes for each individual in this pedigree on the table below. Hemophilia is carried on
the X chromosome and is a recessive trait. The normal clotting gene is (H), while the hemophilia gene is
(h). Because it is sex-linked, remember to include the X and Y to represent the sex chromosomes.
Answer: X. Y.
1,10. H H
2,8,12,13. h -
3,4,7,11,14. H -
5,6,9,15. H h
16. h h
Explanation:
Question 1
Why do the traits of offspring vary from that of their parents?
Answer:
Due to variation and evolution
Explanation:
Environment also affects it.
Answer:
this can be due to variation in the Gene's inherited
Which type of scientific statement is defined as a statement of fact that is generally accepted to be true and universal because it has always been observed to be true? O theory probability o law hypothesis sm
Answer:
C. Law.
Explanation:
A law is a type of scientific statement is defined as a statement of fact that is generally accepted to be true and universal because it has always been observed to be true.
Some examples of laws that are universally accepted include;
I. Law of Conservation of Momentum: it states that if objects exert forces only on each other, their total momentum is conserved.
II. Law of Conservation of Energy: it states that energy cannot be destroyed but can only be transformed or converted from one form to another.
III. Newton's First Law of Motion: also known as law of inertia, it states that, an object or a physical body in motion will continue in its state of motion at continuous velocity (the same speed and direction) or, if at rest, will remain at rest unless acted upon by an external force.
IV. Ohm's law: it states that at constant temperature, the current flowing in an electrical circuit is directly proportional to the voltage applied across the two points and inversely proportional to the resistance in the electrical circuit.
V. The three (3) laws published by Kepler include;
a. The first law of planetary motion by Kepler states that, all the planets move in elliptical orbits around the Sun at a focus.
b. According to Kepler's second law of planetary motion, the speed of a planet is greatest when it is closest to the Sun.
Thus, the nearer (closer) a planet is to the Sun, the stronger would be the gravitational pull of the sun on the planet and consequently, the faster is the speed of the planet in terms motion.
c. The square of any planetary body's orbital period (P) is directly proportional to the cube of its orbit's semi-major axis.
Answer:
C- Law
Explanation:
Correct for edge 2021 (please credit the answer above)
Carol wants to become a medical assistant. She is wondering why it is necessary to spend the time learning the roots, suffixes, and prefixes of medical terms when it is faster to simply memorize the actual medical terms. She has commented to you that she is studying to be a medical assistant, not an English teacher, and that learning all the word components seems like a waste of time.
Required:
How would you respond?
I would respond by saying that it is essential for her to learn the roots, suffixes, and prefixes of medical terms as it will help to avoid any form of misinterpretations.
Learning medical terms can tend to be very difficult but it help medical practitioners to effectively communicate to one another in a more efficiently and effectively way .
Learning medical terms enable the Medical record of patients to be more easier.
Learning and remembering medical terms is essential as it help to avoid any error when it comes to patients history, diagnosis and treatment.
Therefore it is essential to learn Medical term in order to avoid wrong diagnosis as well as wrong treatment which may be life threatening.
Inconclusion I would respond by saying that it is necessary for her to learn the roots, suffixes, and prefixes of medical terms as it will help to avoid any form of misinterpretations.
Learn more here:
https://brainly.com/question/15231125
what structure is less likely to suffer severe damage during an earthquake a high-rise steel frame Hotel built on segments or a wood frame house built on bedrock explain.
Answer:
Wood frame house built on bedrock
Explanation:
The wood frame house built on bedrock is less likely to suffer severe damage because it has a firm bedrock foundation and can be easily repaired and shape recovered since it would just be shaken whereas, the high-rise steel frame hotel built on segments will suffer more damage because it doesn't have as much of a firm foundation like the wood frame house and as such the high rise will fall over and be more difficult to recover due to the severe damage.
Which statement regarding cellular respiration is correct? *
Cellular respiration in plants occurs only during the day.
O All living organisms carry out some form of cellular respiration.
O Fungi and bacteria carry out aerobic cellular respiration only.
O Only plants and animals use glucose and oxygen for cellular respiration.
Answer:
I believe it is all living organisms carry out some form of resperation
Explanation:
True of false - Fossils of the freshwater reptile Mesosaurus have been found in
South America and in Africa.
Answer:
Mesosaurus (meaning "middle lizard") is an extinct genus of reptile from the Early Permian of southern Africa and South America.
Fossils like these were also the reason why researches believe that the continent of South America and Africa were once together.
thus this statement is True.
Explanation:
I hope this helps.
have a great day ahead :)
which is an example of a polygenic trait.
Answer:
im learning this rn
Explanation:
what are the choices? cant answer if u dont give the choices
What distinguishes cholesterol from other biological molecules?
1. Distinguish between organic and inorganic molecules. 2. Recognize the importance of functional groups in determining the chemical properties of an organic molecule.
Energy can be transformed from one form to another. The diagram shows one such process.
Answer:
are u talking about what that energy is called or is it true or false
What influence does acid rain have on seed germination?
Answer:
Acid rain is an umbrella term, which is used
to cover a number of different pollution
processes. The pH of acid rain is ten, fold
difference between numbers. India illustrates
the drastic effect of acid rain on agricultural
productivity researchers there found that
wheat growing near a coal fired power plant
where SO2 deposition was almost five times
greater than the critical load (the amount of
the soil can safely absorb without harm)
suffered a 49% reduction in yield. In the
present investigation to assess the effect of
acid rain on the plant growth, the plant of
Triticum aestivum and Raphanus sativus
were grown in different wooden boxes and
three different plastic boxes. The different pH
(2.0, 4.0, 5.0) of simulated rain does were
sprayed on the plant and after last dose the
specific visual difference was seen in seed
germination. increased acidic level (pH 2.0) of the rain water affects the seed germination by the rate of 40% as compared to that of lower level of acidity (pH 4.0 and 5.0)
Explanation:
Hope it help you mark as Brainlist
• 10. What do environmental scientists study?
Answer:
See detailed explanation.
Explanation:
Hello!
In this case, since the environmental science is the branch of science that focuses on natural phenomena, impact of the human activities, pollution prevention and many others, we can notice it is also an interdisciplinary science involving biology, ecology, physics, chemistry, zoology and other branches of natural science because it goes over the environment and the living things dwelling into it.
It means that the environmental scientists study how the ecosystems behave, how we can conserve them despite the pollution and human dangerous activity, how they have changed along the years and how they are going to be as the years go by.
Best regards!
Hi! environmental scientists specifically focuses on the surrounding environment, such as air, land and water to protect these natural resources and human health.
the ability to categorize data can be described as “discernment”
true or false ?
Answer:
true i think............
Explanation:
A new virus has been identified by DNA sequencing methods in a remote location in the South Pacific. The World Health Organization is very concerned because infection with this virus has a death rate of 20% of all infected individuals and no vaccine is available. This is an example of a(n) _____ disease.
Answer:
an emerging infectious disease
Explanation:
According to the World Health Organization (WHO), an emerging infectious disease can be defined as a newly identified and previously unknown infection in a population that may lead to serious public health concerns at local and/or international level. Emerging infectious diseases usually are caused by pathogenic organisms (like viruses) already present in the environment that acquire the ability to infect a new host species as an adaptive response to changes in ecological conditions. Some examples of emerging infectious diseases include, among others, Ebola virus disease, Chikungunya virus disease, H1N1 Influenza virus disease, etc.
Fossils help us reconstruct plant and animal life in the past as well as their evolutionary processes, which can be either slow or rapid.
a. True
b. False
Answer:
True
Explanation:
When we talk about fossils, we are referring to the remains of organisms that had once lived. These are traces of the organisms that existed in the distant past.
These fossil records help us to reconstruct plant and animal life in the past as well as their evolutionary processes, which can be either slow or rapid.
Fossil records reveal extinct species and help us to make sense of the evolutionary processes on earth.
At the same time, the _______________ and _______________ valves are opening, and blood is forced into the arteries.
Answer:
capliiary and artery
Explanation:
Dakota lives in New Orleans. He knows that scientists have predicted some changes on Earth due to global warming, and he is concerned it will affect his city.
If the climate warmed, which of the following would be caused by rising temperatures?
A. a decrease in the amount of flooding in coastal areas
B. an increase in the amount of solar energy that gets reflected
C. an increase in sea levels
D. a decrease in sea levels
Answer:
The rising global temperatures will lead to an increase in sea levels.
Explanation:
The rise of global temperatures is a natural process that has been occurring numerous times during Earth's past. What is different in the current one though is that humans also have an impact on it and have managed to speed up the process with their activity. Every increase or decrease of global tempeartures results in big changes.
With global temperatures rising, the cryosphere (ice surfaces) will decrease due to melting. How much will the ice surfaces decrease can't be predicted, but even if it's one third or one half of them, the sea levels will rise because they will get huge amounts of water from their melting. This will result in rising in sea levels and that will mean that a lot of the human population will need to migrate and a lot of the biggest cities in the world will be underwater. Such is the case with New Orleans, but also the big cities in the northeast of the United States. Not just cities though, but there are countries that can totally or almost totally be underwater, with the Netherlands, the Baltic States, many Pacific nations being among the most damaged.
Answer: THE ANSWER IS C.) "an increase in sea levels"
Explanation: JUST TOOK THE TEST ON K12
Tempature measured in units is called. 6th grade
Answer:
Kelvin
Explanation:
PLZ HELPPPP !!!!! ME IM VERY MUCH LOST
True or false. In nature organisms produce more offspring than can survive.
Answer: True
Explanation:
Organisms produce more offspring than actually survive. Organisms can die from many causes: disease, starvation, and being eaten, among other things. The environment can't support every organism that is born. Many die before they are able to reproduce.
