Answer:
well i would either figure weeds, but a better answer would be invasive
Explanation:
but i would need more information bc there not much to go off of
Answer:(weeds)
Explanation: common sense g
Who first identified nucleic acids, and where were they discovered? Friedrich Meischer discovered nucleic acids in blood cells. Phoebus Levine discovered nucleic acids in plant cells. James Watson and Francis Crick discovered nucleic acids in DNA. Gerardus Johannes Mulder discovered nucleic acids in bacterial cells.
Answer:
Friedrich Miescher discovered nucleic acids in blood cells.
Nuclein was discovered by Friedrich Miescher in 1869
Explanation
In the somewhat early 1880s Albert Kossel further purified the substance and discovered its highly acidic properties. Then he later discovered the nucleobases. In 1889 Richard Altman creates the term nucleic acid. Friedrich Miescher was the first scientist to ever isolate nucleic acid.
Friedrich Meischer was the first who discovered nucleic acids in blood cells. The correct option is A.
Who was Friedrich Meischer?Miescher, Johannes Friedrich, was indeed a Swiss physician and biologist. In 1869, he became the very first researcher to extract nucleic acid.
He also discovered protamine and managed to make several other discoveries.
In the winter of 1868 the adolescent Swiss physician Friedrich Miescher carried out experiments on the chemical composition of leukocytes in the research lab of Felix Hoppe-Seyler at the University of Tubingen, which resulted in the discovery of DNA.
Thus, the correct option is A.
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Explain the process of food digestion process in human? Will mark Brainliest!!!
Answer:
dear user the answer is given above
Answer:
The mouth is the beginning of the digestive tract. In fact, digestion starts here as soon as you take the first bite of a meal. Chewing breaks the food into pieces that are more easily digested, while saliva mixes with food to begin the process of breaking it down into a form your body can absorb and use.
Explanation:
The chart shows embryos of different animal phyla.
Based on the evidence of their embryos, which pair of phyla are most closely
related?
O A. Echinodermata and Annelida
O B. Mollusca and Arthropoda
O C. Mollusca and Echinodermata
O D. Annelida and Chordata
Answer: B
Explanation:
AP*X
Invertebrates with an exoskeleton, segmented bodies, and paired jointed appendages are known as arthropods.
Molluscan animals have soft bodies that are triploblastic, bilaterally symmetrical, and coelomate. Malacology is the study of Mollusks. They are slow-moving invertebrates with a thin fleshy envelope or mantle that protects the visceral organs.
What are the similarities between Mollusca and Arthropoda?They are triploblastic creatures.They are animals with bilateral symmetry.They're coelomates.They are organized at the organ system level.Thus, we can conclude that option B, Mollusca, and Arthropoda are correct.
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Two trees have the same girth but different heights. The volume of the shorter tree is estimated to be 142 cubic feet.
How can you use Cavalieri's Principle to find the volume of the second tree?
Answer:
im pretty sure the volume would be equal
PLEASE HELP I NEED IT TO BE RIGHT Which of these describes a method in studying plate movements? Select one: a. Observing absence of magnetic rocks in locations that do not match the poles Incorrect b. Match relief elements only on the western side of the Atlantic Ocean c. Recording the spread of the seafloor in the mid-Atlantic region d. Correlate the rotation of Earth to plate movement
Answer:
C. Recording the spread of the seafloor in the mid-Atlantic region
Explanation:
This seems to be the only logical answer. Since we are talking about a method in studying plate tectonics/movements, using evidence of it, seafloor spreading, would be the best idea out of the four.
Seafloor spreading is a geologic process in which tectonic plates—large slabs of Earth's lithosphere—split apart from each other.
Hope this helped! :-)
A population contains short plants and tall plants. The short plants are not able to compete with tall plants for sunlight. The tall plants, however, are more susceptible to wind damage. Which type of selection will this population of plants most likely experience? directional selection disruptive selection species selection stabilizing selection
Answer: D
Explanation: A population contains short plants and tall plants. The short plants are not able to compete with tall plants for sunlight. The tall plants, however, are more susceptible to wind damage.
Which type of selection are the plants experiencing?
directional selection
disruptive selection
If tall and small plants coexist in a population. Short plants are unable to compete for sunlight with tall plants. However, tall plants are more vulnerable to wind damage, it experiences stabilizing selection, hence option D is correct.
What is stabilizing selection?A form of natural selection when genetic diversity declines as a population stabilizes on a given trait value.
Disruptive selection's opposite is stabilizing selection. It favors the intermediate variants rather than people with extreme traits.
The more severe phenotypes are typically eliminated through stabilizing selection, which leads to the reproductive success of the average or typical phenotypes.
Therefore, stabilizing selection this population of plants most likely experience.
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What is the oxidation hall reaction for 2Mg+O 2 2MgO ?
Answer:
2Mg(s) → 2Mg2+ + 4e. On the other hand, O2 was reduced: its oxidation state goes from 0 to -2. Thus, a reduction half reaction can be written for the O2 as it gains 4 electrons: O2(g) + 4e− → 2O.
Explanation:
A school is planting a new drought-tolerant landscape. To determine which
material will retain the most water, a science class carried out experiments
using different materials. How do we know the results are valid?
Answer:
the results make sense
Explanation:
if the results weren't valid, it won't make sense
hope it helps
Answer:
c
Explanation:
hopes this helps
Mechanisms of gene regulation
True or false, if a peptide bond was formed between amino acids 2 & 3 water would be formed from the atoms circled??? and why would this be??
Answer:1 molecule of water will produce
Explanation:
to form peptide bond between two amino acids
Take note of the organs that are highlighted in the human. Your bone marrow makes lymphocytes both B and T cells, the key players in your immune response. These cells mature in your Thymus gland towards the top of your chest. Then they are gathered in your lymph nodes and spleen ready to take action. Knowing this, why do you think children with leukemia rely on bone marrow transplants to survive?
Answer:
because it replaces the un healthy blood forming cells with healthy onesJust help if you can be very appreciated :) thank you
match the one which is correct from the number to letter
Answer:
1. ) Litre - Basic metric unit of volume
2.) Metric system - Used by science and the rest of the world
3.) Gram - Basic metric unit of mass
4.) British system - System of pounds , feet and gallons
5.) Meter - Basic metric unit of length
Hope this helps you
Answer:
Hey there!
Liter. B
Metric System. A
Gram. E
British System. D
Meter. C
Hope this helps :)
Why do you think so many codons code for the same amino acids what benefit might this provide to organisms on earth
Answer:
Many codons code for the same amino acids and the advantage of this phenomenon in organisms is the reduction of deformities and damages caused as a result of mutations.
This means if a mistake or mutation happens during translation there is a great chance of it not having grave consequences on the organisms because the altered codon will still code for the same amino acid and doesn’t disrupt the processes this is to be undergone.
polar climate precipitation
Answer:
The average temperature of the warmest month at less than 10 ºC (50 ºF).
Explanation:
The annual temperature range is large. Precipitation: The region is dry with less than 25 cm (10 inches) of precipitation annually; most precipitation occurs during the summer. hope this helps you :)
Answer:Polar climate precipitation is the average temperature of the warmest month at less than 10 degrees celsius (50 degrees celsius).
Explanation:Polar climate regions are characterized by lack of warm summers.Polar climates tends to be extremely dry since the descending cold air does not have a significant amount of moisture.The two polar regions are usually identified as key regions for monitoring global change,because the surface air temperature and precipitation is expected to increase especially rapid in these two regions along with the ongoing increase of atmospheric carbon dioxide.
How does studying the cell help you better understand God’s creation?
Answer:
studying the cell helps you see how god has made thing unique
Explanation:
so see the bacics the animal is made by god and you can see the different features that god has put into the cells to help then survive hope this helps you rate 5 star and a thanks if it did
Describe the three steps of the lock and key model of enzyme function.
Select the right answer for each question.
7. The presence in the body of a disease is caused by.
a) germs
b) dead cell c) chemical unbalance
d) antibiotics
Answer:
A
Explanation:
The answer is A: germs.
During the Calvin Cycle of photosynthesis, stored energy is used to convert CO2 into ______, which is converted into _______.
Answer:
convert CO2 into sugar which is converted into glucose
Explanation:
Describe some of the basic trends in hominid evolution (brain size, jaw size, language, and manufacture of tools) using at least five (5) sentences.
Answer:
Hominids refers to humans and its closest relatives such as the chimpanzee, gorilla etc.
The basic trends in hominid evolution include:
1. The use of the rear limbs or legs for walking instead of four.
2. There was also an increase in the abuse and discoveries of the terrestrial habitat.
3. Their brain was known to increase in size which made them more sophisticated in thinking and knowledge.
4. They started making tools and used it to hunt wild animals for food.
5. There was a change in their diet as it went from fruits, leaves and other staple foods to the inclusion of a large amount of meat as a source of protein.
In which of the following places would you LEAST likely find a metamorphic rock? (2 points) Deep within a mountain Two thousand feet below the Earth's surface In a riverbed An area where tectonic plates are colliding under great pressure
Answer:
in a riverbed
Explanation:
Usually metamorphic rocks are found in places below earth's surface and in a place with a high temperature.
If a horse and zebra breed to produce a sterile horse.____
means that one is
incapable of producing fertile offspring. In other words, their offspring cannot breed.
Describe biogeographic isolation?
Answer:
Biogeographic isolation is the separation of organisms of a species through geographical or biological forces.
Explanation:
What is the role of tropomyosin in muscle contraction?
Answer:
Tropomyosin blocks myosin binding sights on acting molecules.
Explanation:
It prevents cross-bridge formation, which also prevents muscle contraction
Answer:The role of tropomyosin in muscle contraction is that it blocks myosin binding sites on acting molecules. Tropomyosin is a protein in the muscle contraction and prevents myosin from grabbing it,this prevents muscle contraction.When the nervous system contracts,calcium is released.
Explanation:
What species is our closest extinct relative?
Answer:
Neanderthals
Explanation:
They're our closest extinct human relatives, in comparison to Chimpanzees, as they're still alive...
Australopithecus afarensis species is our closest extinct relative.
Australopithecus afarensis is considered one of our closest extinct relatives. It is an ancient hominin species that lived between 3.9 and 2.9 million years ago. The most famous fossil example of Australopithecus afarensis is "Lucy," discovered in Ethiopia in 1974.
While Homo habilis, Homo neanderthalensis (Neanderthals), and Homo erectus are all part of the human evolutionary lineage and share common ancestry with us, Australopithecus afarensis is considered closer to the ancestral branch that eventually led to the Homo genus, which includes modern humans (Homo sapiens). Australopithecus afarensis displays key characteristics that link it to both earlier hominins and later species within the Homo genus.
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Complete Question is :
What species is our closest extinct relative?
A. Homo Habilis
B: Australopithecus afarensis
C:Homo Neanderthal
D: Homo erectus
Which is an example of a chemical change?
Answer:
when you put chemicals in water and the water gets chemically changed?
Answer:
burning,cooking,rusting,and rotting.
Explanation:
A chemical change results from a chemical reaction, while a physical change is when matter changes forms but not chemical identity.
what is the dispersal of bears?
Researchers found that bears, while foraging, can disperse through their scat about 200,000 devil's club seeds per square kilometer per hour. Rodents then scatter and hoard those seeds, much like squirrels hoard acorns.
_I hope this can help you_
Which statement correctly describes a chemical reaction? Reactants come out of a reaction. Energy is always released. Bonds between atoms break and reform. Products go into a reaction.
Answer: Bonds between atoms break and reform.
Explanation:
Answer:
its c
Explanation:
What is the main term used to locate COPD in the alphabetic index
Answer:
Chronic obstructive pulmonary disease
Explanation:
I'm not 100% sure of what you're asking here but the main term for COPD is Chronic obstructive pulmonary disease. COPD is a long-term lung disease, which makes breathing especially difficult. I hope this helps:)
blood vessels that contain valves and rely on skeletal muscles to move blood are called:
A) arterioles
B) veins
C) capillaries
D) arteries
and why!? thanks!!
Answer:
veins because they carry low pressured blood due to which there is more chance for backward flow of blood and to prevent that they contain valves.
hope it helped uh..
Answer:
B. Veins
Explanation:
Veins carry blood relying on the action of the skeletal muscle as the body moves. Veins have valves so blood flows in only one direction. Valves are not present in arteries. Arterioles is small and contains valves to prevent backflow of blood but does not rely on skeletal muscles. Capillaries don’t have any valves. The correct answer would be veins.
Which structure is most likely used for hunting?
Answer:
A.claws
Explanation:
Which base is found only in DNA?
adenine
O guanine
o cytosine
thymine
Answer:
DNA: adenine (A), thymine (T), cytosine (C
), and guanine
But thymine is only found in dna
and it is replaced by uracil in the rna