Answer:
The correct answer is - option C. alligators; their tails dig holes that hold water during times of drought, and this water is used as a source for drinking water by many species.
Explanation:
Beavers are keystone species as they help other species to get habitat and also help plants to grow by the holes or dams they make. Kudzu is a keystone species of an ornamental plant which lowers the soil erosion in their abundance.
Red cocaded woodpecker is a keystone species as they create pits in the pine trees that are helpful for other species to live.
Alligators also keystone species but not for digging holes and hold water but the influencing the prey and maintaining the animals in the ecosystem.
Answer: B
Explanation: USATestPrep
Please help
What do all of the biodiversity hotspots have in common?
Answer:
To qualify as a biodiversity hotpot, an area must meet two strict criteria: Contain at least 1,500 species of vascular plants found nowhere else on Earth (known as "endemic" species). Have lost at least 70 percent of its primary native vegetation.
Explanation:
Biodiversity hotspots are a method to identify those regions of the world where attention is needed to address biodiversity loss and to guide investments in conservation.
According to ______
electrons are added one sublevel at a time.
Answer:
Two electrons are added to one sublevel at a time (Hund's Principle)
Bile_____?
A: is stored in the pancreas
B: helps break down fats
C: helps break down proteins
D: is released through the small intestine
Please do not answer if you do not know, or if you are not 100% sure. Thank you.
Answer:
B: helps break down fats
Explanation:
Which food contain a lot of processed simple sugars?
Answer:
A cookie contains a lot of processed simple sugars.
Explanation:
Answer: A cookie contains a lot of processed simple sugars.
Describe the relationship between the weight added and the force of gravity.
Answer:
D
Explanation:
The heavier somthing is than the gravatational pull is more heavy
There are some specific ethical guidelines and standards for the forensic scientists to follow. But it was not always so. Investigate how the standards and ethics code came to be established over the years. Also, discuss whether they have helped as much as they should have.
Answer:
Explanation:
The field of forensic science is important to the criminal justice system. Forensic personnel must pay close attention to detail during the collection, preservation, and analysis of physical evidence. If evidence is mishandled, manipulated, or misinterpreted it can potentially destroy a case and/or the lives of all individuals involved
Answer:
Explanation:
In 1904, Scotland Yard officials introduced fingerprint matching to US law enforcement officials at the World’s Fair. The fact that forensic science was not born from the scientific community meant that forensic scientists were not always bound to the quest for knowledge, but instead for the purpose of solving crimes. This difference led to misaligned incentives. Expert witnesses were often paid per conviction in many states.
In the late 1980s, DNA evidence, which was born in the scientific community, has helped identify the guilty and exonerate the innocent. Many other forensic techniques, such as hair microscopy, ballistics analysis, and arson investigations, have not been subjected to the rigorous scientific evaluation that DNA analysis has. Other techniques, such as blood typing, have been properly validated.
These invalidated techniques have led to the Innocence Project, which holds that forensic science techniques should be shown to be valid and reliable through research and assessment of validity and reliability, and subject to accreditation and certification to assure quality. States are eligible to receive grant money if they do so. This change has resulted in the growth of many organizations, such as the ASCLD/LAB, that accredit forensic scientists.
the growth of plants due to gravity
Answer:
Gravitropism (also known as geotropism) is a coordinated process of differential growth by a plant or fungus in response to gravity pulling on it. Gravity can be either "artificial gravity" or natural gravity. It is a general feature of all higher and many lower plants as well as other organisms.
Explanation:
What is a piscivore?
O An animal that eats fish
O An animal that eats plants
O Any fish species
O Any plant species
What happened to the indigenous“medicine man” after Dr. Campbell showed up and why?
Answer:
The indigenous 'medicine man' flees seeing Dr. Campbell because both Dr Campbell and the medicine man, were in conflict with each other.
Explanation:
'Medicine Man' is a movie directed by John McTiernan, starring Sean Connery(as Dr. Robert Campbell) and Lorraine Bracco(as Dr. Rae Crane). The film is about Dr. Campbell who sets into the forest of Amazon and finds the cure to cancer.
The Medicine man is the one who informed Dr. Campbell about the flowers containing 'ju-ju' (powers to heal). But after Campbell cured a little boy having gas by 'alka-seltzer', they both were in conflict of each other.
So, when Dr. Campbell showed up with the man and a little boy suffering from malignant neoplasms at the medicine man doorsteps, the indigenous medicine man flees from there.
need help with this ??
Answer:
Year
I took a test with a similar question recently
the boundary where two plates collide is the divergent boundary
True
False
Answer:
False
Explanation:
A divergent boundary happens when two tectonic plates move away from each other. When two plates collide, it is known as a convergent boundary.
I think the answer is false
Evaluate these statements about Koch's postulates, which are used to establish a causative link between a specific microbe and a specific disease. Which of them are true
Answer:
The following statements are true:
The microbe must be present in individuals suffering from the disease and absent from healthy individuals.
If organisms from the pure culture are injected into a healthy experimental animal, the disease symptoms should appear.
The microbe must be isolated and grown in pure culture.
Note: The question is incomplete. The complete question is given below:
Evaluate these statements about Koch's postulates, which are used to establish a causative link between a specific microbe and a specific disease. Which of them are true? Select all that apply.
The microbe must be present in individuals suffering from the disease and absent from healthy individuals.
The microbe does not have to be isolated from the experimental animal as long as the disease is present.
If organisms from the pure culture are injected into a healthy experimental animal, the disease symptoms should appear.
The microbe must be isolated and grown in pure culture.
Explanation:
Robert Koch, a German Physician, in 1884 postulated the following four criteria in order to establish a causative relationship between a microbe and a disease;
The microorganism must be found in abundance in all organisms suffering from the disease, but should not be found in healthy organisms. The microorganism must be isolated from a diseased organism and grown in pure culture. The cultured microorganism should cause disease when introduced into a healthy organism. The microorganism must be reisolated from the inoculated, diseased experimental host and identified as being identical to the original specific causative agent.From the above, the following out of the statements are true:
The microbe must be present in individuals suffering from the disease and absent from healthy individuals.
If organisms from the pure culture are injected into a healthy experimental animal, the disease symptoms should appear.
The microbe must be isolated and grown in pure culture.
need help with this ??
Which two characteristics do polar and dry climates have in common?
high altitude and very cold winters
very cold winters and contrasting seasons
contrasting seasons and very little precipitation
very little precipitation and few, specialized plants
Answer:
D. very little precipitation and few, specialized plants
Explanation:
its the answer on edge
The two characteristics which polar and dry climates have in common include very little precipitation and few specialized plants. Thus, the correct option is D.
What are Polar and Dry climates?A polar climate is a place where the climate generally has a temperature below the freezing, icy, and it is covered in snow. These areas do not get enough amount of direct heat and sunlight from the sun. Polar climates are located at the North Pole of the Arctic, and at the South Pole on the continent of Antarctica.
The dry climate are found in deserts which are very dry and the temperature of these areas are very high.
Both of these climates show some common characteristics such as very little precipitation and few specialized plants which can survive in these conditions.
Therefore, the correct option is D.
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Activator or repressor proteins which bind DNA to regulate the transcription of genes do so mainly by: A. Covalent interactions between the protein and specific bases in the major groove of DNA B. Covalent interactions of Zn2 atoms with the phosphodiester backbone C. Non-covalent interactions between the protein and specific bases in the major groove of DNA D. Covalent interactions with nearby nucleosomes E. Answers B and D are correct
Answer:
C. Non-covalent interactions between the protein and specific bases in the major groove of DNA
Explanation:
Activator or repressor proteins are proteins with specific DNA-binding domains that have affinity by one or two DNA strands. In general, these proteins interact with the major groove of the B-DNA structure since this structure exposes more functional groups for binding. Non-covalent interactions are a type of interaction that does not involve the sharing of electrons. The interaction between proteins and DNA is due to the combination of different non-covalent interactions, which can be classified into four major types: van der Waals, hydrophobic, hydrogen and ionic interactions.
Observations:
In this photo I can
observe...
(delete this and start
typing here. See below
for ideas about what to
write about)
Answer:
In this photo, one can observe the big mountains, the clear blue sky, the sand which covers the ground, the path down the middle and the variety of dry, green plants.
Explanation:
^
Fill in the blanks with either P for prokaryote, E for eukaryote, or B for both. (2 points per correct answer) – 20 possible points
1. _____ I have a cell membrane.
2. _____ I have a nucleus.
3. _____ Bacteria are an example of me.
4. _____ Animals are an example of me.
5. _____ I contain ribosomes.
6. _____ I contain cytoplasm.
7. _____ I contain genetic material, such as DNA.
8. _____ I contain membrane-bound organelles.
9. _____ Plants are an example of me.
10. _____ Your body cells are made of me.
Please I need help!!
Answer:
1. B
2. E
3. P
4. E
5. B
6. B
7. B
8. E
9. E
10. E
Explanation:
1. Both prokaryotes and eukaryotes have a cell membrane. Hence, it is B
2. Only eukaryotes have a nucleus. Hence, it is E
3. Bacteria are an example of prokaryotes because they lack a membrane-bound nucleus. Hence, P
4. Animals are an example of eukaryotes because they possess a membrane-bound nucleus. Hence, E
5. Both prokaryotic and eukaryotic cells contain ribosomes. Hence, B.
6. Both prokaryotes and eukaryotes contain cytoplasm. Hence, B.
7. Both prokaryotes and eukaryotes contain genetic material, such as DNA. Hence, B
8. Only eukaryotes contain membrane-bound organelles e.g mitochondrion, endoplasmic reticulum. Hence, E.
9. Plants are an example of eukaryotes because they possess a membrane-bound nucleus. Hence, E.
10. My body cells as a human being are made of eukaryotic cells. Hence, E.
Which is the name of the group of spermatophytes that are cone-bearing plants?
A. Lycophytes
B. Bryophytes
C. Gymnosperms
D.angiosperms
Answer:
Gymnosperms
Explanation:
Gymnosperms produce both male and female cones, each making the gametes needed for fertilization; this makes them heterosporous. Megaspores made in cones develop into the female gametophytes inside the ovules of gymnosperms, while pollen grains develop from cones that produce microspores.
Gymnosperms are name of the group of spermatophytes that are cone-bearing plants. The correct option is C.
What are gymnosperms?In contrast to angiosperms, or flowering plants, whose seeds are encapsulated by mature ovaries or fruits, a gymnosperm is any vascular plant that propagates through a bare seed, or ovule.
Many gymnosperm seeds are borne in cones and are not visible until the plant matures.
Gymnosperms are a small class of plants that rarely flower and produce "bare seeds." This means that the seeds are produced on the reproductive structure's surface rather than within it, as in a fruit.
Gymnosperms are a spermatophyte plant group that includes cone-bearing plants.
Thus, the correct option is C.
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Question 1
The heat from a lamp allows a lizard to remain warm. This is an
example of which type of heat transfer?
Cold Blood
Conduction
Radiation
Convection
Answer:
Answer is radiation
Explanation:
Took the test!
Do the same mechanisms that govern gene expression operate in bacterial cells and eukaryotic cells? Explain your answer.
Answer:
in prokaryotic cells, the control of gene expression is mostly at the transcriptional level. ... Eukaryotic gene expression is regulated during transcription and RNA processing, which take place in the nucleus, and during protein translation, which takes place in the cytoplasm.
Which action is a result of gravity in relation to moving tectonic plates
Answer:
Ridge push and slab pull is a result.
Explanation:
Can I get brainiest!
Answer:
The answer is ridge push and slab pull
Explanation:
Help Please ATP Synthase
Answer:
its the 3 one
Explanation:
You are doing lab work with a new species of beetle. You have isolated lines that breed true for either blue shells and long antenna or green shells and short antenna. Crossing these lines yields F1 progeny with blue shells and long antenna. Crossing F1 progeny with beetles that have green shells and short antenna yields the following progeny: Phenotypes Number Blue shell, long antenna 82 Green shell, short antenna 78 Blue shell, short antenna 37 Green shell, long antenna 43 Total 240 Assuming that the genes are linked, what is the map distance between them in m.u.
Answer:
The map distance = 33.3 cM
Explanation:
Let us take,
BBLL as blue shell, long antenna .........Parent 1
bbll as green shell, short antenna .......... Parent 2
Then, cross between parent 1 and parent 2, which is
BBLL X bbll
The F1 generation will be heterzygous
BbLl as blue shell, long antenna ...... F1 offspring
By the test cross,
BbLl X bbll :
given,
BL/bl = 82 : Parental
bl/bl = 78 : Parental
Bl/bl = 37 : Recombinant
bL/bl = 43 : Recombinant
Total = 240
Recombination frequency = { [tex]\frac{Number of recombinants}{Total offspring}[/tex]}*100
= (80/240)*100 = 33.33 %
Thus, the map distance = 33.3 cM
Countries like Guatemala and
are learning responsible and sustainable farming practices to help their agricultural business flourish.
south africa
rwanda
france
Answer:
The answer is Rwanda
Explanation:I took the unit test.
identify and describe one natural and one man made source of carbon in the carbon cycle?
Which Macromolecule forms peptide bonds?
What is the relationship between DNA, genes, and proteins in the cell?
Answer:
Explanation:
protein synthesis
Which is the largest prefix? Meter- Centi- Milli- Kilo-
Answer:
kilo is the largest
Explanation:
kilo- is the largest
How many net ATPs are made in glycolysis?
Select one:
O a. 1
O b. 2.
O c. 6
O d. 34
O e. 38
Answer:
O c. 6
Explanation:
Outermost solid layer of earth A:crust. B:mantle. C:outer core. D;inner core
Answer: crust
Explanation: The crust is the most outer layer sold layer of planet Earth. We live on the crust of the Earth. Therefore, crust is the answer.
Hope this helps!
