Answer:
A a nucleus
Explanation:
since prokaryotes have their DNA in the cytoplasm they do not have a nucleus
In periods of hot, dry weather, the small pores (holes) on the surface of leaves of most plants will close in order to reduce water loss. When these pores are closed, carbon dioxide is restricted from entering the leaf. As a result, what product will also decrease? a. Cellular respiratory b. Water c. Glucose d. Carbon dioxide
Why do you think scientists call both liquids and gases by the same term-fluids?
Help please I have no time
Answer:
C
Explanation:
the leopard, Lion and tiger are of the same" Panthera" genus
please mark as brainliest
Type the correct answer in the box. Spell all words correctly. What is the correct term for blocked sunlight and reduced solar radiation as a result of a volcanic eruption? When dust and ash particles from a volcanic eruption block out sunlight and reduce solar radiation, Earth experiences the . This results in temporary climate cooling.
Answer:
Haze effect
Explanation:
I got it right on edmentum
just 23 and 24 please and thank you.
Answer:
6he interphrase would be 34 and the meter phrase whoud be 49 if i am correct
Explanation:
Answer:
23- 69.9%
24- 8.9%
Explanation:
those are both percentages because there's cells in each and everyone of the stages
if random chromosome alignment already shuffles chromosomes around so the eggs and sperm get a good mix of some “mom” alleles and some “dad” alleles, why do we even need to do crossing over
Answer:
The correct answer is - to produce recombinant that leads to genetic variation.
Explanation:
Random shuffling or random alignment of the chromosome during gamete formation allows the formation of new allele combinations. In the crossing over the parts of the homologous chromosomes are switched between homologous and recombinants are formed that shows are genetic variation.
So, now they have different allele combinations and chromosome combinations as well. Random shuffling does not provide genetic variations as crossing over
HELP ASAP WILL MARK BRAINLIEST! Idk if my answer is right please help
In what ways is packaging an important use of energy and materials
Answer:
Packaging allows products/goods to be kept inside. The goods alone is what people need or want. Because of this, too much sophisticated packaging wastes energy and materials, so it can produce, distribute, dispose, and recycle it.
Answer:
the material you are using is a material being wasted
Explanation:
Where do chromosomal mutations begin?
Why do chromosomal mutations occur?
Answer:
A chromosome mutation is an unpredictable change that occurs in a chromosome. These changes are most often brought on by problems that occur during meiosis (division process of gametes) or by mutagens (chemicals, radiation, etc.).
Explanation:
Brainliest please?
Answer:
1) Different types of chromosome mutations can originate in the germinal cells.
2) Chromosome mutations are alterations occurring in chromosomes that typically result from errors during nuclear division or from mutagens. ... Abnormal chromosome numbers result from nondisjunction, or the failure of chromosomes to separate correctly during cell division.
Explanation:
This is what i found on the internet :/
What does the suffix -zygous mean? (Genetics)
Answer:
Having a zygotic constitution of a specified kind:heterozygous.
Answer:
relating to the word zygous
i.e. heterozygous
I need help please if your smart only lol.
The answer you are looking for is D.
1. Which of the small solar system bodies orbit the sun in only a few years or as many as hundreds of thousands of years?
Meteors
Meteorites
Comets
Asteroids
Answer:
Comets
Explanation:
I got the answer
It's a hot summer day & you decide to mow the lawn, Mowing the lawn will be an intense activity, but your lawn is small & will take you only 10
minutes to mow. Before mowing you want to have a snack,
1. Name the 4 biomolecules that are found in different foods:
Answer:
Carbohydrates, proteins, lipids and nucleic acids.
Explanation:
Biomolecules are organic and are carbon containing and are of four types which are carbohydrates, proteins, lipids and nucleic acids.
Carbohydrates are part of our major diets and are found in grains, fruits and vegetables and so on.
Carbohydrates are energy producing food through glucose.
Lipids contain both fat and oil and they are hydrocarbon and non polar molecules that don't dissolve in water. They provide energy, insulation in the environment and are major constituent of plasma.
Proteins are organic molecules found in meat, milk, beans, cheese e.t.c.
They are body building food or serve as building blocks.
They are enzymes and hormones which are involved in body mechanisms.
Nucleic acids are composed of deoxyribonucleic acid(DNA) and ribonucleic acids. They are the genetic constituent of living organisms and they carry the genetic information.
explain how the repiratory and the circulatory system work together. To make gas exchange possible.
Answer:
here's the more, get to the point answer: so the circulatory system is responsible for gas exchange between tissues and blood that we need. All living creatures (including us) have blood and that blood absorbs oxygen and releases carbon dioxide to/in the lungs (respiratory system). Thus the circulatory and respiratory system helps us to obtain oxygen and discharge carbon dioxide
Explanation:
hope this helps
Answer:
The two systems work together in several ways. First, the respiratory system brings oxygen in the air to the alveoli in the lungs. The circulatory system then delivers the oxygen to the cells. Second, the circulatory system picks up carbon dioxide from the cells and carries it to the lungs, where it is released when we exhale.
Explanation:
This is what I did thank you have a nice day
Colour blindness is a sex linked-linked disorder.
Caused by the alleler on the X chromosome. The Y
chromosome does not have a gene for this
disorder. Draw a punnet square to show how two
people without colour blindness can have a child
with
PLEASE HELP
Which systems work together to fight infection in the body?
50 pointss!! Name three things that threaten the water supply. How do you believe you can correct one of these problems in your city and/or state?
Answer:
Microbes, salts, and pollution from agriculture and industry all contribute to the problem. Global warming will likely have major impacts on the world's freshwater resources.
Explanation:
Water source protection involves the protection of surface water sources and the protection of groundwater sources from contamination of any kind. Water source protection includes basic measures and rules such as the installation of a fence around the source or the banning of grazing animals in the surrounding area.
Noah is a 3-year-old boy recently diagnosed with epilepsy. He presented to his pediatric advanced practice registered nurse (APRN) in a primary care clinic with 2 weeks of increased seizure activity after a medication change. Symptoms also included a sudden increase in lethargy, ataxia, and drowsiness. Test results showed elevated ammonia, liver function, and an abnormal electroencephalogram reading. Which cell organelle is not working properly?
Answer:
Mitochondria
Explanation:
Mitochondrial diseases are a group of diseases caused by dysfunctional mitochondria, organelles that generate energy for the cell. Mitochondrial diseases are often caused by mutations, acquired, or inherited in the mitochondrial DNA or nuclear genes that code for respiratory chain complexes in the mitochondrion. Mitochondrial diseases involve multiple organs and show heterogeneous and unpredictable progression. The most common clinical presentation of mitochondrial diseases is encephalomyopathy, and epileptic seizures can frequently occur as a presenting sign of mitochondrial encephalopathy.
When the figure skater had her arms out, she was spinning slowly. The more she pulled her limbs in, the faster she spun. Why did she start spinning faster when she pulled her arms in?
Answer: She spun faster because her mass was closer to her center of rotation. The rate of spin increased to conserve angular momentum.
Explanation: plato answer
A group of 100 female water fleas was placed in each of three culture jars of different sizes. The graph below shows the average number of offspring produced per female each day in each jar.
A) water fleas have fewer offspring when they are thinly populated.
B) the ability of a water flea to produce offspring is affected by population density.
C) the reproduction rate of water fleas increases steadily after 20 days.
D) water fleas produce more offspring when they are crowded together.
Answer:
B
Explanation:
They grow more when they are less densely populated
which is the smallest unit of measurement? (out of these) centimetre micrometre millimetre nanometre
Answer:
Nanometer
Explanation:
A Nanometer is 1000 time smaller than a Micrometer and a micrometer is 1000 time smaller than a millimetter and so on.
The smallest unit of measurement among the options given is the nanometre (nm).
What is the unit of measurement?A unit of measurement is a defined quantity used to express a physical quantity such as length, mass, time, volume, or temperature. Units of measurement provide a standard reference for comparing and measuring physical quantities.
There are several systems of units used around the world, including the International System of Units (SI), the British Imperial System, and the United States Customary System. The SI system is the most widely used system of measurement, and it is based on the metric system.
SI units are defined using a set of base units, such as the meter for length, the kilogram for mass, and the second for time. Other units, such as the Newton for force or the Watt for power, are derived from these base units.
In addition to the SI units, there are also non-SI units that are widely used in various fields, such as the Angstrom for measuring atomic distances in chemistry and the knot for measuring speed in marine and aviation industries.
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What is thermal energy? Why do we need it?
Answer:
Thermal energy is basically heat and we need it because without heat we would not have any warm feelings in our houses and stuff...
Explanation:
Answer:
Thermal energy is defined as a type of energy which is contained within a system which is responsible for temperature rise.
we need it because without heat we would not have any warm feelings.
Explanation:
For question 1, circle the choice that correctly completes the sentence.
1. Genetic information is bundled into packages of (DNA/RNA / chromosomes/
centrioles) known as (DNA/RNA / chromosomes / centrioles).
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Actually Welcome to the Concept of the Biology
So the answer is,
Genetic Information is bundled into packages of DNA known as Chromosomes.
Answer:
DNA for first one chromosome for second
Explanation:
The roots of plants are important to photosynthesis because they... A. remove glucose from the plant. B. remove oxygen from the plant. C. provide the water needed. D. provide the carbon dioxide needed.
Answer:
C. provide the water needed
Explanation:
Plants cannot absorb water effectively through the stem or leaves, so they have roots to absorb moisture (and nutrients) from the soil
Which is the role of the gall blabber
What usually happens to an ecosystem after a sudden catastrophic change?
Please answer quickly
Answer:
Explanation:
What occurs is ecological succession. When an entire ecosystem is suddenly changed due to a catastrophic scenario it gets replaced by another. Other plants or animals replace the ones that got wiped out in an event such as a big forest fire or flood. Only if the place of the catastrophe somehow becomes uninhabitable another ecosystem won't come out of the old one.
11/13/2020
SCS 20-21 SCI BIOLOGY_#1
Question #4
Bacteria called thermophiles have been discovered that can live in natural hot springs unlike most
bacteria that cannot survive extreme heat. Using genetic engineering techniques, the heat resistant gene
in these thermophiles has been isolated and then inserted into wheat and corn cells in an attempt to
develop crops that can withstand global warming.
Which statement suggests a possible reason for inserting the thermophilic gene into the crops?
A
The wheat and corn now have increased tolerance to increased salinity levels, so the enzymes
inside their cells will not be denatured by salt allowing them to survive as the sea level rises.
B
The wheat and corn now have increased tolerance to heat, so the enzymes inside their cells will not
be denatured by extreme heat, allowing them to survive the increase in global temperatures.
С
The wheat and corn now have increased tolerance to cold, so the enzymes inside their cells will not
be denatured by extreme cold allowing them to grow in the Antarctic and Arctic regions.
D
The wheat and corn now have increased tolerance to a lower pH, so the enzymes inside their cells
will not be denatured by changing pH due to increased global temperatures allowing them to
survive
Nuaction #5
Answer:
D
Explanation:
A genetically modified organism (GMO) is any organism whose genetic material (DNA) has been modified by genetic engineering. In agriculture, GMO plants with resistance to abiotic and biotic factors have been developed.
The statement "the wheat and corn now have increased tolerance to heat, so the enzymes inside their cells will not be denatured by extreme heat, allowing them to survive the increase in global temperatures" suggests a possible reason for inserting the thermophilic gene into the crops (Option B).For example, Bt crops are GMOs capable of synthesizing proteins that are selectively toxic to insect pests but are innocuous to humans and animals. These GMO crops (Bt crops) were developed by inserting certain genes from Bacillus thuringiensis (Bt) bacteria into corn and cotton.Some genetic engineering techniques used for inserting genes and thus develop GMOs include the use of viral vectors, microprojectile bombardment, electroporation. microinjection, etc.In conclusion, the statement "the wheat and corn now have increased tolerance to heat, so the enzymes inside their cells will not be denatured by extreme heat, allowing them to survive the increase in global temperatures" suggests a possible reason for inserting the thermophilic gene into the crops (Option B).
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What do you think caused people to accept the heliocentric model of the solar system?
Answer: The heliocentric model was generally rejected by the ancient philosophers for three main reasons: If the Earth is rotating about its axis, and orbiting around the Sun, then the Earth must be in motion. ... Hence, the Earth must be stationary.
Explanation:
Biological pest control involves
Answer:
eliminating pests with pesticides
Explanation:
where in the cell does the electron transport part of the cellular respiration occur ?
Answer:
mitochondria
The Krebs cycle and electron transport occur in the mitochondria. The Krebs cycle takes place in the matrix, and electron transport takes place on the inner membrane. During the Krebs cycle, pyruvate undergoes a series of reactions to produce two more molecules of ATP and also several molecules of NADH and FADH2.