Answer:
in a riverbed
Explanation:
Usually metamorphic rocks are found in places below earth's surface and in a place with a high temperature.
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Which of the following products were created through marine biotechnology?
Penicillin
Plasma television
Fluorescent dyes
Lithium batteries
Answer:
penicillin is the answer
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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Which structure is most likely used for hunting?
Answer:
A.claws
Explanation:
In a new trial to test the effectiveness for a new type of medicine, why is it necessary for one group to receive a placebo?
Answer:
To serve as control experiment.
Explanation:
Hope it helps.
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:)
All wetlands are considered freshwater ecosystem
Answer:
Marshes, swamps, and bogs are all considered wetlands. ... Wetlands are not considered freshwater ecosystems as there are some, such as salt marshes, that have high salt concentrations—these support different species of animals, such as shrimp, shellfish, and various grasses.
Explanation:
i hope this helps you!
Answer:
It will be false
Explanation:
Took on edg
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.
In addition to being an airway, the _______ is the location of the human vocal cords.
Answer:
the larynx
Explanation:
it is the organ forming an air passage to the lungs and holding the vocal cords in humans and other mammals also known as the voice box.
Check
Match each type of fossil to its description
petrified fossil
X
hollow form
mold
solid copy
carbon film
living thing turned to rock
cast
X
record of an organism's activity
trace fossil
detail left after an organism decays
Answer:
mold - hollow form
carbon film - detail left after an organisms decay
living things turned to rock - petrified fossil
trace fossil - a record of an organisms activity
cast - solid copy
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.
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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Which option identifies one section of the ocean floor?
intertidal zone
open ocean
neritic zone
transition zone
HELP
Answer:
c. neritic zone
A seabed or the ocean floor is the underwater structure that lies on the bottom of the ocean or sea. The oceanic floor comprises continental inclines and elevations, mid-ocean ridges, trenches etc.
The correct answer is:
Option C. Neritic zone.
This can be explained as:
The shallow region of the ocean is called the neritic zone that extends up to 660 feet of depths.The sunlight is available and plankton's and other organisms can make their food.It is the most prolific zone of the ocean because of the abundance of nutrients.Organisms like sea anemones, crabs, sponges, dolphins, jellyfish etc. prevail in this zone.Therefore, the neritic zone is the section of the ocean floor.
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Two cities have smokestacks on their plants. Which of the following weather conditions would you expect to create an increase in air pollution dispersal for one of the cities?
The city with a higher air pressure
The city with a higher humidity
The city with a lower wind speed
The city with a lower temperature
Answer:
The city with a higher air pressure
Atoms have a _______
surrounded by _____
A. positive electron, negative nuclei
B. negative electron, positive nuclei
C. negative nucleus, positive electrons
D. positive nucleus, negative electrons
Katie wants to see if apples that are kept cold will rot or stay edible. She places an apple in the refrigerator and records the date. What should she use as a control?
(a) Keep an apple in freezer
(b) Keep an apple in boiling water
(c) Keep an apple in cool place
(d) Keep an apple in warm place
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:
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
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
how did the modern atomic theory develop?
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.
which molecule loses electrons during cellular respiration?
Answer:
glucose
Explanation:
Descnbe how technology causes change
-Biology
Answer:
a technological change is an increase in the efficiency of a product or process that results in an increase in output, without an increase in input. ... Processes or products, such as the telephone, move through technological change in three stages: Invention - the creation of a new product or process
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
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:
Which of the following is the conversion factor used to convert light-years to
miles?
A.
5.9 X 102 miles
1 light-year
B.
1 light-year
5.9 trillion miles
C.
1 light-year
5.9 million miles
D. 1 light-year = 5.9 x 101 miles
Answer:
5) 1 light year. = 5.9 trillion miles
1 light year = 5,878,625,373,183.69 miles
1 light year. = 5.9 trillion miles
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
*ANSWER PLS N TY* How does water scarcity in certain places result in hunger for the people? a.) Water is needed for proper sanitation. b.) When wetlands dry up, more biodiversity occurs. c.) Polluted water causes disease. d.) Water is needed to grow successful crops.
Answer: D water is needed to grow successful crops
Answer:D
Explanation: Crops need water for transpiration and evaporation. The plant roots suck or extract water from the soil to live and grow, without this crops won’t successfully grow. This should help :)
Which statement describe a pattern shown in the data?
The data from trial 3 are inconsistent with the dat as from trials 1 and 2
Which factor is most important for classifying two species into the same
group?
A. The species live in the same place.
O B. The species have different common ancestors.
O C. The species have the same common name.
D. The species have the same set of traits.
SUBMIT
Answer:
d
Explanation:
ap3x
The factor used in classifying two species into the same group is D. The species have the same set of traits.
What are traits in a orgaism?Character traits csn be regarded as the valued aspects of a organism behavior.
When making classification, especially two species into the same group, traits serves as important factor because it list the characters in the organism.
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