Answer:
systematists
Explanation:
I just took the Test
Scientists who study taxonomy are called systematists.
Systematics refers to the field whose objective is to study the diversification patterns of living organisms from different taxonomic groups (e.g., plants, animals, bacteria, etc).Systematists are scientists that classify life forms according to evolutionary relationships, which are visualized as evolutionary trees.Systematists specialize in classifying and sorting biological information about plants and animals and group them according to their patterns of variation.In conclusion, scientists who study taxonomy are called systematists.
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https://brainly.com/question/21120491
How does a single fertilized egg cell develop into so
many different types of specialized cells?
Answer:
They both cannot produce all cells. Multipotent- limited to replacing cells in the tissue where they are found.
Explanation:
in which place would you find the fewest organism?
The sahara desert
The peak of Mt everest
A savannah
A rain forest
Answer:
The peak of mt everest
l think this is correct answer
l hope it's helpful for you....
What were Earth's continents like in the Jurassic time period?
Answer:
Here
Explanation:
Answer:
.
Explanation:
Which events may cause long-term changes in climate?
volcanic eruptions
changes in solar output
changes in the shape of Earth's orbit
changes in ocean circulation
Answer:
changes in the shape of Earth's orbit
Answer:
c
Explanation:
how much is 14 pennies?
Answer:
14 cent
Hope this helps :)
Answer:
14 cents
Explanation:
$0.14
How can the efficiency of a system impact the environment, economy and society
Answer:
l don't konw the equation
As water temperature __________ the amount of O2 dissolved in water _____.
Answer:
Explanation:
As water temperature increases, the amount of O2 dissolved in water decreases.
The graph looks something like this (though not exactly. It just has the same sort of shape.)
why does the sky looks blue in the daytime and looks red during sunset because in of brownian movement be cause of the suspense is particles the air see because the tyndall effect because the of the particles a directly
Answer:
due to the refraction of light from sea.
Explanation:
the sky looks blue in the daytime and looks red during sunset because in of brownian movement be cause of the suspense is particles the air see because the tyndall effect because the of the particles a directly
true or false the typical X shaped chromosomes is the result of DNA replication
Answer:
True
Explanation:
Truly, the typical X shaped chromosomes is the result of DNA replication. When the DNA has replicated, it then condenses and coil into the X-shaped of the chromosome. This then implies that replicated chromosomes take the X-shaped structures seen under a microscope.
When this replication occurs, the chromosome is made of two structures that are identical. They are known as the sister chromatids. These chromatids are actually joined at the centromere.
Cells that are metabolically active and use a lot of energy: include red blood cells. include white adipose (fat storage) cells. are found in the dermal layer, just under the skin. are densely packed with numerous mitochondria. generally are not found in the human body.
Answer:
are densely packed with numerous mitochondria.
Explanation:
Mitochondria are considered as the energetic centers of the eukaryotic cells. These organelles (mitochondria) produce energy in the form of Adenosine Triphosphate (ATP) through the mechanism of cellular respiration, i.e., mitochondria are the organelles where aerobic phases of cellular respiration occur. In presence of oxygen, mitochondria convert chemical energy obtained from foods to ATP, which is the energy coin that cells use to carry out all their metabolic processes (e.g., reproduction, growth, development, etc). Thus, cells with high metabolic requirements need to have many mitochondria in order to produce more ATP.
How can humans mitigate the effects of human development on biodiversity?
Through proper education, and by demanding that governments make decisions to preserve biodiversity, the human population will be able to sustain life on earth longer.
1. Mitosis is a nuclear division that ?
the chromosome number
The nails are derived from which layer?
Answer:
5
Explanation:
5
All the answers please and thank you
Answer: 1. In CF, the body makes abnormal CFTR protein or none at all. Without normal CFTR protein, the cells lining the pathways (tubes) inside some organs make thick, sticky mucus rather than the normal thin, watery kind. Thick mucus can trap bacteria in the lungs, leading to infection, inflammation, and breathing problems. 2. When the CFTR protein is defective, epithelial cells can't regulate the way that chloride (part of the salt called sodium chloride) passes across cell membranes. 3. Mutations in the DMD gene cause the Duchenne and Becker forms of muscular dystrophy. The DMD gene provides instructions for making a protein called dystrophin . This protein is located primarily in skeletal and cardiac muscle, where it helps stabilize and protect muscle fibers. Collapse Section. DMD, the largest known human gene, provides instructions for making a protein called dystrophin. This protein is located primarily in muscles used for movement (skeletal muscles) and in heart (cardiac) muscle. 4. Lack of the dystrophin protein in muscle cells causes them to be fragile and easily damaged. DMD carriers are females who have a normal dystrophin gene on one X chromosome and an abnormal dystrophin gene on the other X chromosome. Most carriers of DMD do not themselves have signs and symptoms of the disease, but a minority do. Symptoms can range from mild skeletal muscle weakness or cardiac involvement to severe weakness or cardiac effects and can begin in childhood or adulthood. 5. Scurvy happens when there is a lack of vitamin C, or ascorbic acid. The deficiency leads to symptoms of weakness, anemia, gum disease, and skin problems. This is because vitamin C is needed for making collagen, an important component in connective tissues. 6. composed of ground substance and fibers. The extracellular matrix of connective tissue is composed of ground substance and fibers. In ordinary connective tissue, the ground substance consists mainly of water. The principal fiber type is collagen (the most abundant protein in the body), with elastic fibers as a minor element. brainliest?
Explanation:
A news article discussed a genetically engineered medicine that is used to enhance the production of antibodies that are used against disease. Which medicine is this
Answer:
the sun
Explanation:
You have purified the receptor for a hormone by affinity chromatography. During gel filtration chromatography under native conditions the receptor elutes between pyruvate decarboxylase (250 kDa) and glutamine synthetase (620 kDa). During SDS-PAGE, in the absence of reducing agents, the receptor migrates as a single band of approximately 230 kDa. When SDS-PAGE is carried out in the presence of 2-mercaptoethanol the receptor migrates as two bands of approximately 95 and 135 kDa. Explain this result.
Answer:
the hormone receptor is a heterotetramer composed of two subunits with 95 kDa and two subunits with 135 kDa
Explanation:
In this case, the heterotetramer is composed of two heterodimers, each composed of two subunits that held together by disulfide bonds. These heterodimers bind together through hydrophobic interactions in order to form a tetramer. The Sodium Dodecyl Sulfate (SDS) is a denaturing detergent that dissociates both heterodimers by interfering with hydrophobic interactions that hold heterodimers together. It is for that reason that only a single band of 230 kDa is observed (135 kDa + 95 kDa = 230 kDa). Moreover, 2-Mercaptoethanol breaks disulfide bonds, thereby separating the two subunits in the heterodimer. In consequence, after the use of this chemical compound (2-Mercaptoethanol), two different bands with 135 kDa and 95 kDa can be observed.
how to read a scientific paper? and use a publication to demonstrate the different steps? pleas help me
Answer:
Attempting to read a scientific article for the first time may seem overwhelming and confusing. This guide details how to read a scientific article step-by-step. First, you should not approach a scientific article like a textbook— reading from beginning to end of the chapter or book without pause for reflection or criticism. Reading and understanding research papers is a skill that every single doctor and scientist has had to learn during graduate school. You can learn it too, but like any skill it takes patience and practice. Reading a scientific paper is a completely different process from reading an article about science in a blog or newspaper.
Explanation: i hope im right
✌hope u have a great day
wich of the following ingredients produce a heterogeneous mixture when mixed together ?
a.oil and water
b.sugar and water
c.salt and vinegar
d.molten copper and zinc
Answer:
the answer is A
oil and water
Which of the following statements is true of a gene that is active (expressed)?
A.The DNA corresponding to the gene is tightly wound around histones.
Answer:
There are many acetyl molecules attached to the histones associated with the gene.
Explanation:
I just checked on my homework. I hope this helps others!
Aquifer is the process of seeping of water under the ground.
Answer:
The process of seeping of water into the ground is called infiltration. The groundwater thus gets recharged by this process. At places the groundwater is stored between layers of hard rock below the water table. This is known as an aquifer.
Answer:
Explanation:
An aquifer is an underground layer of water-bearing permeable rock, rock fractures or unconsolidated materials (gravel, sand, or silt). Groundwater can be extracted using a water well. The study of water flow in aquifers and the characterization of aquifers is called hydrogeology.
23. What event most likely took place after photosynthetic organisms were introduced on earth? a. The atmosphere content changed from highly oxygenated to CO2 b. Mitochondria began converting glucose into ATP at a higher rate c. Oxygen was introduced into the environment allowing for many other organisms to survive d. The water cycle was thrown off causing super storms
Answer:
C. Oxygen was introduced into the environment allowing for many other organisms to survive
Explanation:
A is not correct because that is the opposite of what photogenic organisms do.
B is not correct because ATP and glucose do not apply.
D is not correct because photosynthesis does not have a direct affect on the water cycle itself.
How do triglycerides play an important role in human metabolism?
Answer:
Triglycerides play an important role in metabolism as energy sources and transporters of dietary fat. They contain more than twice as much energy as carbohydrates. They are the main constituents of body fat. Hope it helps ❤️
In a plant species, you notice that purple and yellow leaf colors segregate. Interestingly, hairy and smooth stems segregate, as well. You cross a true-breeding plant with purple leaves and hairy stems to a true-breeding plant with yellow leaves and smooth stems. You testcross the F1 from this cross to generate the following testcross progeny.Phenotypes yellow leaves, hairy stems purple leaves, hairy stems purple leaves, smooth stems yellow leaves, smooth stems Numbers 68 66 22 25 Total: 181 a) Indicate the most likely genotypes of each parent. b) What pattern of inheritance could explain the progeny results? Based on your answer, what ratios would be expected for the four classes of progeny? c) Using the chi-square method, test your ratios and indicate whether you accept them or reject them.
Answer:
Can u take a pic of the question
What is the function of a chromosome
A. To tightly package a single amino acid
B. To tightly package a single protein
C. To tightly package a single molecule of DNA
D. To tightly package a single gene
Answer:
C
Explanation:
A chromosome is a dna strand wrapped around a histone and coiling to give the signature chromosome shape
Answer:
C. To tightly package a single molecule of DNA
Explanation:
I'LL GIVE BRAINLIEST (RIGHT ANSWER ONLY)
Which of the following statements about cell organelles is NOT true?
A. Chloroplasts contain chlorophyll and are the site of photosynthesis.
B. Many of the same organelles are located in both plant cells and animal cells.
C. The nucleus in an animal cell has a different primary function than in a plant cell.
D. The endoplasmic reticulum has several roles, including packaging and transporting proteins.
Answer:
C. The nucleus in an animal cell has a different primary function than in a plant cell.Nucleus has the same function in a plant & animal cell.
how do water and living things interact?
Seasonal changes occur when the Earth moves so that the Northern Hemisphere and the Southern Hemisphere are tilted more toward or away from the Sun. What happens as the Earth moves so that the Northern Hemisphere is tilted more toward the Sun?
A.
The length of daylight increases in the Southern Hemisphere.
B.
The distance from the Sun decreases in the Southern Hemisphere.
C.
The average temperature decreases in the Northern Hemisphere.
D.
The amount of sunlight increases in the Northern Hemisphere.
Answer:
D.The amount of sunlight increases in the Northern Hemisphere
Explanation:
did this in study island trust me guys
8. Which of the following are functions of external regulators of the cell cycle?
Select two answers.
a. regulate checkpoints
b. make sure chromosomes have replicated
c. speed up or slow down the cell cycle
d. stop the cell cycle
Select the correct statement(s):
a. The thalamus receives stimulus from all of the five senses (sight, smell, taste, hear, touch)
b. Pressure-sensitive baroreceptors uses tonic receptors which adapt slowly to the stimulus
c. The three layers that the retina is made of: photoreceptors, bipolar cells, rod cells.
d. The sense of smell uses phasic receptors which continuously fire as long as the stimulus is present
Answer:
The correct option is B Pressure-sensitive baroreceptors uses tonic receptors which adapt slowly to the stimulus
Explanation:
a. The thalamus receives stimulus from all of the five senses (sight, smell, taste, hear, touch). FALSE. Olfactory information is not sent to the thalamus for its process. The rest is.
b. Pressure-sensitive baroreceptors uses tonic receptors which adapt slowly to the stimulus. TRUE. Among the different types of tonic receptors, we may find baroreceptors, irritation receptors, tactile receptors, and proprioceptors. Tonic receptors characterize by their slow adaptation to the stimulus. The first discharge is maximal when the stimulus is received and then it progressively decreases. They send a continuous signal to the CNS.
c. The three layers that the retina is made of: photoreceptors, bipolar cells, rod cells. FALSE. There are in fact three layers in the retina: photoreceptors, bipolar cells, and ganglion cell layers. NOT rod cells.
d. The sense of smell uses phasic receptors which continuously fire as long as the stimulus is present. FALSE. Olfactive sense uses phasic receptors, but not continuously. These receptors shoot when they receive the stimulus, and then cease if the stimulus keeps constant.
PLEASE HELP WILL BE BRAINLIEST!!!!!
1. There are 2 types of rabbits in a population: those that eat grass, and those that eat flowers and berries. One
year, a drought occurs, and the plants have a hard time producing extras such as flowers or berries. They
can only try and keep themselves green. All year the rabbits have had babies, but many get eaten by
predators like foxes and hawks. Due to the drought, though, many have also starved. Explain what type of
natural selection will occur to this population of rabbits, including what trait is selected FOR and which is
selected AGAINST, and how the population will evolve as a result of the natural selection.
Answer:
Answer:
Against: rabbits that eat berries or flowers
For: grass eating rabbits
Explanation:
I hope this helps you out with your question! Can you plz consider marking me brainliest and thanks! Plz tell me how the answer was! It feel nice to be appreciated! Comment /free for a giveaway entry of 20 thanks and 2 brainliest. Have an awesome day! Let me know if you have any questions! -KaraYeaton18
Answer:
I'll explain it to make it easier on you :)
Explanation:
This type of natural selection is called disruptive selection. Because of the drought, foxes, hawks, and other animals eating the rabbits, the population of them is being disrupted Think of when a student is being disruptive in class. The teacher usually has to stop the class to 'punish' the student. This situation is similiar. There are things disrupting production and population of the rabbits.
FOR: The population of rabbits
AGAINST: The drought and predators
As a result of disruptive natural selection, the population of rabbits will only decrease due to predators and the drought.
I hope this helps you! :)