Answer:
Varying amounts of thought
Explanation:
Some decisions, like what you should eat for lunch, require very little thought but others require a lot of thought, like choosing a college.
Answer:
varying amounts of thought
Explanation:
Which of the following provides the best justification for the contention that Archaea are more closely related to Eukaryota than they are to Bacteria?
O Multicellular organisms are found in both Archaea and Eukaryota but not in Bacteria.
O Cell membranes with ester-linked fatty acids are found in both Archaea and Eukaryota but not in Bacteria.
The composition of cell walls is similar in Archaea and Eukaryota but not in Bacteria.
The single-celled prokaryotic cells of Archaea and Eukaryota are visually similar, but Bacteria is not.
Which is the best choice for a genetic transformation: a bacterium, earthworm, fish, or mouse?
Answer:
A bacterium would be the best choice in this case
Explanation:
Bacteria are small, single-celled organisms which reproduce quickly and easily; it is made of only one cell, it reproduces every 20 minutes, it does not make people sick, it cannot survive outside the lab, etc.
Among the options given, the best choice for a genetic transformation is implemented for a bacterium. Thus, the correct option for this question is A.
What is Transformation?Transformation may be defined as a process of horizontal gene transfer through which some bacteria take up foreign genetic material (unaided DNA) from the environment. This technique was first reported in Streptococcus pneumoniae by Griffith in 1928.
The population of bacteria utilizes three techniques in order to reproduce and permits genetic variations. They are conjugation, transformation, and transduction. Bacteria are small, single-celled organisms that reproduce quickly and easily in nature.
Transformation is the genetic alteration of a cell resulting from the direct uptake and incorporation of exogenous genetic material from a surrounding atmosphere.
Therefore, the best choice for a genetic transformation is implemented for a bacterium. Thus, the correct option for this question is A.
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How are desert and tundra biomes similar?
They both have short growing seasons.
They both receive a lot of rain.
They both have very hot climates.
They are both found near the equator.
Answer:
Short growing seasons
Explanation:
Short growing seasons would be the right answer, as the limited rainfall in the form of liquid water, with the extreme climates would make it the only viable option.
What would this be ???
Answer:
I would say cell membrane
List four major issues affecting today’s environment.
Answer:
Deforestation
Human Overpopulation
overfishing
Ozone depletion
Explanation:
What are the results of desertification
Answer:
loss of farmland
Explanation:
An important piece of information in the management of a person infected with a chronic virus such as HIV is his/her "viral load" or how many virus particles can be detected. If before PCR, a patient had a viral load of 1.6 x 104 viral particles. What would be the amount of DNA in the sample after the completion of the first PCR cycle?
Answer:
the answer is 3.2 x 10⁴
Explanation:
The Polymerase Chain Reaction (PCR) is a technique widely used in molecular biology to exponentially amplify a specific DNA sample from a small amount of DNA. For this purpose, the PCR technique uses: 1- a DNA polymerase enzyme in order to synthesize new DNA copies and 2- one pair of DNA oligonucleotides (primers) which are complementary to the ends of the target DNA sequence. During each round of PCR, the double-stranded DNA template is unwound and each strand is used to synthesize a new DNA strand, thereby forming two new double-stranded DNA molecules. In consequence, each round of PCR doubles the amount of DNA.
I will give 20 points!
What has happened to Cinder in Chapter 7 and 8?
4 A reaction that needs water,
macromolecules are broken down
( biochemistry )
Answer:
Hydrolysis
Explanation:
Hydrolysis is a reaction that needs water to breakdown macromolecules into simpler units.
Macromolecules are giant polymers made up of several repeating monomeric units.
These units are too complex for the body to digest and derive nutritional benefits from them. During hydrolysis, the complex is broken down into monomers. The monomeric units are absorbable and useful for the body.The part of the blood that carries oxygen is
a. plasma
b. white blood cells
c. platelets
d. hemoglobin
Please select the best answer from the choices provided
ΟΑ
ОВ
OD
Answer:
D) Hemoglobin
Explanation:
The part of the blood that carries oxygen is hemoglobin.
What is Hemoglobin?The amount of hemoglobin in your blood can be measured using a hemoglobin test. Red blood cells include a protein called hemoglobin, which distributes oxygen to your body's organs and tissues while returning carbon dioxide to your lungs.
A low red blood cell count indicates a low hemoglobin level, which can be determined by a hemoglobin test (anemia). Vitamin deficiencies, hemorrhage, and chronic disorders are just a few of the numerous potential causes of anemia.
If a hemoglobin test reveals a higher-than-normal level, there are a number of possible explanations, including the blood condition polycythemia vera, high altitude living, smoking, and dehydration.
Therefore, The part of the blood that carries oxygen is hemoglobin.
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How do scientists obtain knowledge about the
world? Check all that apply.
Answer:
ALL OF THE CHOICES
Explanation:
Answer:
all choices
Explanation:
coz
What most likely happens when a plate under the ocean is forced beneath another plate?
Seafloor splits open creating a large trench.
Seafloor spreading moves plates away.
New land is formed from hot molten rocks.
The top plate is uplifted and may create a tsunami.
Answer:
A. Seafloor splits open creating a large trench
Explanation:
I hope this helps
Answer:
it is D/ Location A, because the lighter oceanic plate will be pushed under the continental plate
Explanation:
Over the past 800,000 years, what is true about the pattern of climate during glacial-interglacial cycles?
Temperature changes led CO2 changes
Methane played the dominant role in the warming and cooling
Plate tectonics played the dominant role in the warming and cooling
CO2 changes led temperature changes
Answer:
Explanation:
The history of humanity from the initial appearance of genus Homo over 2,000,000 years ago to the advent and expansion of the modern human bieings that we are today evoled from many years ago some say from the begining of time— it is connected to climate variation and change. Human biens has experienced nearly two full glacial-interglacial cycles, but its global geographical expansion, massive population increase, cultural diversification, and worldwide ecological domination began only during the last glacial period and accelerated during the last glacial-interglacial transition. The first bipedal apes appeared in a time of climatic transition and variation, and Homo erectus, an extinct species possibly ancestral to modern humans, originated during the colder Pleistocene Epoch and survived both the transition period and multiple glacial-interglacial cycles. Thus, it can be said that climate variation has been the midwife of humanity and its various cultures and civilizations.
Answer: involve rapid, nonlinear, reactions of ice volume, CO2, and temperature to external astronomical forcing. The precise timing of events may be modulated by millennial‐scale climate change that can lead to a contrasting timing of maximum interglacial intensity in each hemisphere. A variety of temporal trends is observed, such that maxima in the main records are observed either early or late in different interglacials. The end of an interglacial (glacial inception) is a slower process involving a global sequence of changes. Interglacials have been typically 10–30 ka long. The combination of minimal reduction in northern summer insolation over the next few orbital cycles, owing to low eccentricity, and high atmospheric greenhouse gas concentrations implies that the next glacial inception is many tens of millennia in the future.
1 Introduction—Interglacials of the Last 800 ka
Earth's climate of the last 800 ka (1 ka = 1000 years) is the latest stage in a slow cooling that has been in progress for the last ~50 Ma (1 Ma = 1 million years) [Zachos et al., 2008]. During this cooling, ice sheets formed on the Antarctic continent ~40 Ma ago, while the first signs of Northern Hemisphere (NH) glaciation appeared much more recently. Only at the start of the Quaternary Period and the Pleistocene Epoch, ~2.6 Ma ago, did alternations between cold glacial periods with ice on the NH continents, and warmer intervals with little or no NH continental ice, first appear, reflected in the appearance of ice‐rafted debris
Explanation:
Need asap !
When comparing two ecosystems, the one with a larger amount of
biodiversity is likely to have
A. less precipitation
B. more extinctions
C. more stability
D. fewer disturbances
Answer:
B :))
Explanation:
Answer:
more stability
Explanation:
Which of the following molecules posses both polar and non-polar regions
Answer:
phospholipids
Explanation:
The only molecule that contains both polar and non-polar regions from the ones given are phospholipids.
Glucose first enters a pathway called ___________, which takes place in the cytoplasm of the cell.
Answer:
eukaryotic energy pathway
Explanation:The first process in the eukaryotic energy pathway is glycolysis, which literally means "sugar splitting."
Which of the following correctly describes distinguishing characteristics of the Kingdom Plantae?
O Photosynthtic and multicellular
O Vascular and flowering
O Prokaryotic and photosynthetic
O Terrestrial and eukaryotic
Photosynthtic and multicellular correctly describes distinguishing characteristics of the Kingdom Plantae.
What are the characteristice of kingdom Plantae?Kingdom Plantae includes all the plants. They are eukaryotic, multicellular and autotrophic organisms. The plant cell contains a rigid cell wall. Plants have chloroplast and chlorophyll pigment, which is required for photosynthesis.
They are non-motile. They make their own food and hence are called autotrophs. They reproduce asexually by vegetative propagation or sexually. These are multicellular eukaryotes.
Kingdom Plantae is broadly composed of four evolutionarily related groups: bryophytes (mosses), (seedless vascular plants), gymnosperms (cone bearing seed plants), and angiosperms (flowering seed plants).
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Help! What is structure A?
Answer:
structure A is called the Cristae
If a nucleus has eight chromosomes during interphase, how many chromosomes does it have after mitosis is complete
Answer:
8 chromosomes
Explanation:
Mitosis is the process whereby a cell divides into two identical copies of itself. This genetical identity emanates from the fact that the daughter cells possess the same kind and number of chromosomes as the parent cell.
Hence, a nucleus that has eight (8) chromosomes during interphase will possess 8 chromosome in each daughter cell at the end of mitosis. Mitosis, which consists of stages, duplicate its DNA at the interphase stage but do not increase the chromosome number. Sister chromatids are formed for each chromosome, which separate during anaphase stage, and become individual chromosome in each daughter cell.
In this case, 8 chromosome are still formed at interphase but 16 sister chromatids. These chromatids separate equally into each daughter cell i.e 8 in each cell to become individual chromosomes.
Select the correct answer.
If you have joint or ligament pain during exercise you should:
A. Continue exercising and hope it goes away
B. Never do that activity again
C. Back off, and if it continues see a doctor
D. Sit in a hot tub for two hours
The answer would be C
Whenever you have joint or ligament pain during an exercise you have to stop because you don't want to cause permanent damage.
If it continues hurting, see a doctor to prevent damage.
where is cilia/flagella located?
Answer:
eukaryotic and prokaryotic cells.
Answer:
Cilia have several possible sensory functions, especially when part of nerve cells, and they may not move at all. Cilia are found only in eukaryotes while flagella are found in both eukaryotic and prokaryotic cells.
Explanation:
what is the summer equation for photosynthesis?
Answer:
water sunlight air and vaiabilty
Answer:
water sunlight air and vaiabilty
Explanation:
what process is used by the cell to move the molecules from outside the cell to inside the cell
Answer:
Diffusion
Explanation:
Diffusion is one principle method of movement of substances within cells, as well as the method for essential small molecules to cross the cell membrane.
bird is to fly, lion is to ?
Answer:
walks
Explanation:
The answer is walks because, birds fly while lions walk on the legs
How many legs does a water bear have?
Answer:
These paintings are hard to maintain. Ancient mural paintings are exposed to an assortment of distortions brought about by natural impacts, changes in temperature and humidity, as well as contamination and by human ignorance to preserve the monuments without knowing their value.
Choose the best explanation of theory of plate tectonics.
Group of answer choices
as the continents and ocean floors broke apart, the plates moved too
land masses that broke apart from single land mass and formed separate continents
sections of crust plates the drift over the molten magma of the Earth's mantle
sections of the Earth's crust that move laterally past, away from, or slide under other plates
Answer:
Sections of the Earth's crust that move laterally past, away from, or slide under other plates.
Explanation:
Answer:
Explanation:
Sections of the earth's crust that move laterally past, away from, or slide under othe plates.
I took the test and it was wright
Can someone tell me what the phenotypic ratio is for JjTt x JjTt on a dihybrid cross? I'll mark you brainliest if your right (:
9:3:3:1
Explanation:
thats just the rule for the classic Mendelian ratio for a dihybrid cross
Which statements are true about sex chromosomes?
Select all that apply.
1.All animals have the same sex chromosome system.
2.All cells carry both of the sex chromosomes.
3.They are not numbered in a karyotype.
4.They determine the sex of an organism.
Answer:
3. they are not numbered in a karyotype
Explanation:
they are not listed by number they are listed by size
Answer:
3. They are not numbered in a karyotype.
4. They determine the sex of an organism.
Explanation:
Science
A cell has many structures inside it. All of these structures are held in the cell by its covering. What is this covering called?
OA. nucleus
ОВ.
mitochondria
OC.
cell membrane
OD. chloroplast
At the complete end of cellular repiration, how many molecules of ATP are produced? A. 15 B. 34 C. 38 D. 26
C.38
Answer:
C.38
Explanation:
During aerobic cellular respiration, one molecule of glucose is broken down in the presence of oxygen to produce approximately 38 molecules of ATP. Light energy is converted into chemical energy in the process of photostnthesis- the resulting carbohydrate moecule incorporates linorganic carbon, and water to produce oxygen and glucose.
ATP or adenosine trohosphate is a high energy molecule, used as a type of energy currency in cells. In respiration, glucose is converted to pyruvate- this molecule's derivatives are then oxidized and reduced to harvest energy as ATP.
C6H12O6 (glucose) + 6 O2 → 6 CO2 + 6 H2O + ≅38 ATP
glucose+ oxygen → carbon dioxide+ water+ energy