Why is the tundra the most fragile biome?
a- extreme conditions
b-large human population
c-vast food web
d-large amounts of rain, washing pollutants into water sources
Answer:I’d say a
Explanation:
It’s a super cold place
In a plant, leaf color and leaf shape are controlled by two linked genes. Leaves of the wild plant are red (R) while a recessive mutation in this gene causes leaves to be white (r). Wild-type leaves are pointed (P), while a recessive mutation in this gene causes them to be smooth (p). For a parent plant that is heterozygous for both traits with both recessive mutations on one chromosome, what genotypes will its gametes be
Answer:
The genotypes of the gametes are:
RP (parental), rp (parental), Rp (recombinant), rP (recombinant)
Explanation:
Available data:
Leaf color and leaf shape are controlled by two linked genes.Leaves of the wild plant are red (R) while a recessive mutation in this gene causes leaves to be white (r).Wild-type leaves are pointed (P), while a recessive mutation in this gene causes them to be smooth (p). Parent plant heterozygous for both traits with both recessive mutations on one chromosomeParent) RP/rp ---> RP are in one chromosome, while rp in another
chromosome
Gametes) RP (parental)
rp (parental)
Rp (recombinant)
rP (recombinant)
Which pancreatic digestive enzymes digest starches?
Answer:
pancreatic amylase completes the digestion of starches
Explanation:
begun in your mouth, to release molecules of maltose, while pancreatic lipase breaks down fats into fatty acids and monoglycerides.
please give an perfect answer
Answer:
a neutral solution? i think
Do hawks eat spiders?
Answer:
yea
Explanation:
if they can catch it
Which of these layers is the deepest?
Answer:
the answer is B. C horizon
Explanation:
AP3X
Which of the following fire-adapted blomes is dominated by shrubs with cool, wet winters and hot, dry summers?
•Chaparral
•Savanna
•Prairie
Answer:
I believe chaparral
Explanation:
Digestion of ___ begins in the stomach. Select one: a. starch and proteins b. starch and triglycerides c. triglycerides and proteins d. starch and all other oglio-orpolysaccharides
Answer:
c.triglycerides and proteins
Which of the following is an example of natural selection?
A
Over time, the Earth's crust started to solidify about one-billion years after the
planet was formed.
B
Over time, a species of cricket became green because green crickets were better
able to hide among the leaves.
с
In the winter, as food becomes more scarce, some species of birds fly to new
habitats in the south.
D
In June, the Northern Hemisphere gets more direct sunlight due to the tilt of
Earth's axis as it revolves around the sun.
Answer:
its b
Explanation:
i just did it :)
what are the three components of the cell theory
Answer: Sample Response.
Explanation: The first component of the cell theory says that all living things are made of cells. The second component of the cell theory states that cells are the basic structure and function of living things. The last component of the cell theory says that cells come from other cells.
in chemical reactions, bonds blank in reactants.
What was John snows original hypothesis and how did it conflict with prevailing models of Heath and disease
Answer:
Explanation:Snow's hypothesis was that contaminated water was the source of the disease, but the challenge was how to prove this to others who were skeptical. ... It is now known that cholera is a waterborne disease, spread when water used for drinking or washing food has been contaminated with feces from infected individuals.
in which amino acid imidazole group found
Answer:
Histidine contains imidazole group which can be uncharged or positively charged, depending on its local environment. Lysine & arginine contains positively charged R group while glutamate has negatively charged R group.
please help soon!!
Erwin Chargaff's work on the composition of nucleic acids began in 1944. His findings, which later became known as
Chargaff's rules, detail the specific pairings that occur in double-stranded DNA molecules.
According to one of Chargaff's rules, a section of DNA molecule that contains 50 base pairs and has 15 adenine
bases must also contain
a- 15 guanine bases
b- 15 cytosine bases
c- 15 thymine bases
d- 15 uracil bases
Answer:I think 15 cytosine based
Lisa and Vinay are looking under a microscope at animal cells. They see an organelle
that they think is the endoplasmic reticulum. Which statement would support their
idea?
•the organelle contains DNA
•Othey observed ribosomes on the structure
Answer:
The correct answer is - they observed ribosomes on the structure.
Explanation:
The endoplasmic reticulum is the cellular organ eukaryotic organisms, that is tubular in shape and present in the cytoplasm that plays role in protein folding and part of the transport system of the cell. It has two subunits smooth endoplasmic reticulum and rough endoplasmic reticulum.
Rough endoplasmic reticulum has ribosome molecules present on the surface of the structure that is sending the protein to ER where folding of the protein and transport of the protein.
27. A certain type of toad resembles tree bark with its brown color and rough skin. A certain type of frog, has a bright yellow-green color with red toes and smooth skin. How does the appearance of each organism most likely help them survive?
Answer:
Frogs go brrrrr
Explanation:
If a brown toad is in a forest then it will be harder to spot. If a bright yellow-green colored frog were in the same forest, it would be much easier to spot. So their appearence helps them survive by being harder to spot and allowing them to live and avoid preadators.
Biology is the study of nonliving things.
Answer:
False
Explanation:
Because Biology is the study of living organisms.
Explain how each of the other fields of social science is important to historians. Remember they are economics, geography, archaeology, and political science. Give an example of how a historian would use each of these branches when studying history.
Answer:
Social science, any branch of academic study or science that deals with sociology, psychology, political science, and economics. Most historians, however, consider history as one of the humanities.
HOPES THIS HELPS BRO!!!
Science is an attempt to explain
A. the truth concerning all things in Science
B. the supernatural
C. superstitions
D. natural phenomena
Answer:
its D i took the k12 test i hope this helps
Explanation:
football measurnet and draw it
Answer:
eefedsgechtghjffrturgdhudcn7ddrzvj
ASAP ASAP 50 POINTS
In three to four sentences explain both the positive and negative effects of mutations.
Answer:
positive mutations means positive impacts of mutations i.e it leads to mutations. while negative effects leads to chromatic aberration that occurs during phenyl ketonuria!
If this helped you mark me brainliest (=^o^=)
which element is NOT found in DNA? a. Nitrogen b. oxygen c. sulfur
Answer:
sulfer
Explanation:
What is the difference between domestication and natural selection?
Answer:
By definition, natural selection is the survival of the fittest.
Explanation:
Natural selection, in itself, is not a generator or creator of evolutionary novelties, but it only exposes certain variants.
Variants do not arise under the induction of the environment, but randomly, by chance, by a combination of genetic material, something that already exists in the genetic fund of a species.
Domestication is a term used for the process by which various biological organisms adapt to survive in society or through the work of human beings.
Which two are locations where protozoa are most likely found?
decaying matter
polluted air
dirty water
skin contact
unwashed clothes
Answer:
the two locations that are most likely found is dirty water and polluted air
The movement of organisms from one place to another is called ___________. *
Answer:
Dispersal
Explanation:
A
Chemicals used in chemotherapy treatments to fight cancer can also harm cels in hair folicles and bone marrow. What
characteristic do these cells most likely share with cancerous cells?
O They form tumors.
O They spread through the blood.
O They divide rapidy.
O They contain a mutation.
Answer:
C. They divide rapidly
Explanation:
Answer: The correct answer is B
Explanation: I just took the test
Answer the question above
Answer:
i think it's March
Explanation:
HI EVERYONE ^_^
Why the ureolytic bacteria produce CaCO3?
Answer:
Ureolytic bacteria hydrolyze urea to generate ATP by the efflux of ammonium ions through ATP-synthase, producing carbonate. In the presence of calcium ions in excess, calcium carbonate will precipitate.
What is the role of energy in living organisms? Is ti a mor or less important role than other characteristics of life?
Answer:
A huge number of chemical reactions take place continuously in a living cell. The whole of all chemical processes, that is, the total turnover of matter and energy is called metabolism.
Explanation:
All organisms need the energy to grow, reproduce, and respond to their surroundings. All these processes are achieved through metabolism that allows the energy available to them.
Compare sequence 2 with sequence 1 and describe the mutation that has occurred.
Answer:
but is it rlly
Explanation: