DNA replication
Explanation:
Why
is the hepatic portal
portal vein
unique ?
Answer:
Blood flow to the liver is unique in that it receives both oxygenated and (partially) deoxygenated blood. As a result, the partial gas pressure of oxygen (pO2) and perfusion pressure of portal blood are lower than in other organs of the body.
C6H12o6 + 602 →6co2 + 6H2o + ATP
Why is this process essential for living organisms?
A. It creates carbon dioxide
B. It creates energy
C. It creates sugar
D. It creates water
Answer:
A.It creates carbondioxide
Squirrels eat acorns. Good acorn production happens when there are good growing conditions for the oak trees that make acorns. Often, there are many acorns produced one year but very few acorns the next year. What is the most likely impact on the squirrel population in years when fewer acorns are produced?
Nest size will increase.
Competition will increase.
Predation risks will increase.
Reproduction rates will increase.
Answer:
B competition will increase
Explanation:
this is because if there are less acorns then squirrels then they will all fight for the acorns and some will die to starvation. nest size won't increase because there isn't enough food for the squirrels already there. predation will decrease because there is less squirrels so that means less pray for the animals that eat the squirrels. then there is reproduction rates will increase. It is not that one because there are squirrels dying from starvation there aren't squirrels reproducing. that is why your answer is B.
a researcher has 15 pure bred wild mice which were bron and all were females. they were all mated with a male called Bob.All the offspring were brown/ these were then crossed among themselves with the the following results 293 brown and 115 white. determine the color of bob
Answer:
1. Brown.
2. Brown colour is dominant.
3. 2.5 : 1
Explanation:
The colour of Bob is brown because the offspring produced from mating are also brown. The dominant colour in these mice are brown due to presence of this brown colour in all mice. We know that dominant traits always appear in the form and structure of an organisms and we see all mice have brown colour so we can say that the dominant colour is brown. The ratio of brown to white in the 'grandchildren' are 2.5 : 1 means more mice has brown colour as compared to white.
Three processes that occur in cells are described in the box these processes are an example of
Answer:maybe D I could be wrong tho
Explanation
Answer:
C
Explanation:
took test
Which statement correctly compares the roles of different types of organic molecules in the body?
A.Carbohydrates provide insulation for the body, while nucleic acids provide long-term energy storage.
B.Lipids provide long-term energy storage for the body, while carbohydrates provide a quick source of energy.
C.Proteins carry the body's genetic information, lipids provide cushioning for organs.
D.Nucleic acids provide support and structure for the body, while carbohydrates provide long-term enerzy storage.
Answer:A
Explanation:
euglena cell membrane help keep the cell alive how
Euglena are unicellular organisms classified into the Kingdom Protista, and the Phylum Euglenophyta. All euglena have chloroplasts and can make their own food by photosynthesis. They are not completely autotrophic though, euglena can also absorb food from their environment; euglena usually live in quiet ponds or puddles.
Euglena move by a flagellum (plural ‚ flagella), which is a long whip-like structure that acts like a little motor. The flagellum is located on the anterior (front) end, and twirls in such a way as to pull the cell through the water. It is attached at an inward pocket called the reservoir. Color the reservoir grey and the flagellum black.
The Euglena is unique in that it is both heterotrophic (must consume food) and autotrophic (can make its own food). Chloroplasts within the euglena trap sunlight that is used for photosynthesis, and can be seen as several rod like structures throughout the cell. Color the chloroplasts green. Euglena also have an eyespot at the anterior end that detects light, it can be seen near the reservoir. This helps the euglena find bright areas to gather sunlight to make their food. Color the eyespot red.Euglena can also gain nutrients by absorbing them across their cell membrane, hence they become heterotrophic when light is not available, and they cannot photosynthesize.
The euglena has a stiff pellicle outside the cell membrane that helps it keep its shape, though the pellicle is somewhat flexible and some euglena can be observed scrunching up and moving in an inchworm type fashion. Color the pellicle blue.
In the center of the cell is the nucleus, which contains the cell's DNA and controls the cell's activities. The nucleolus can be seen within the nucleus. Color the nucleus purple, and the nucleolus pink.
The interior of the cell contains a jelly-like fluid substance called cytoplasm. Color the cytoplasm light yellow. Toward the posterior of the cell is a star-like structure: the contractile vacuole. This organelle helps the cell remove excess water, and without it the euglena could take in some much water due to osmosis that the cell would explode. Color the contractile vacuole orange.
Explanation:
Answer:
im pretty sure the cell membrane just protects the Euglena as a whole and the rest of the cells inside it.
Explanation:
HELP ME ASAP
read the article above and answer the questions below :
4. The most digestion takes place in the
A. Stomach
B. Duodenum
C. Rectum
D. None of the above
5. The food you eat becomes fuel for your
A. Brain
B. Muscles
C. Both a. and b. above
D. None of the above
6. The proteins, carbohydrates, and fats from the food that was eaten travels to cells throughout the body in the
A. Stomach
B. Duodenum
C. Small intestine
D. Blood
In fruit flies, red eyes are a dominant trait and white eyes are recessive.
A scientist crossed two heterozygous red eyed fruit flies. What color
eyes would the scientist expect to see in the fruit fly offspring?
Answer:
It's C
Explanation:
8.
Which one do you think, more often, results in an offspring not surviving? Explain
Answer:
l need the choseises to pick the correct one
Which of the following would be good ways to reduce a person's risk of dying from
cancer?
O all of these would be good strategies to reduce risk of cancer death
O get screening tests to detect cancer early
O use sunscreen
do not use tobacco products
eat high fiber foods
Answer:
all of them would be good strategies
Explanation:
what part of DNA contains the genetic code
Answer:
Genetic Code. ... stored on one of the two strands of a DNA molecules as a linear, non-overlapping sequence of the nitrogenous bases Adenine (A), Guanine (G), Cytosine (C) and Thymine (T). These are the "alphabet" of letters that are used to write the "code words".
DNA is the genetic material that has codes for genes that makes up the genotype and phenotype of an organism.
The genetic code is stored on the double helix of the DNA molecule.
They are arranged in a linear manner that does not overlap each other.
The code is represented by the alphabets of nitrogenous bases.
The purines adenine (A) and Guanine (G) and pyrimidines cytosine (C) and thymine (T) are found on the strands.
To learn more about genetic codes and DNA follow the link:
https://brainly.com/question/14030770
A DNA triplet reads ATT. what is its corresponding mRNA codon?
1. ATT
2. TAA
3. UAA
4. AUU
Answer:
UAA
Explanation:
In RNA, U gets paired with T while T get paired with A
Hope this helps :)
David is a research scientist who is giving a lecture to a class of students on how life began on Earth. Help him complete the sentences.
Scientists have found
containing fossilized cyanobacteria (blue-green algae). They show that life has been present on the Earth from early ages. Oparin and Haldane were two scientists who hypothesized that life needed reducing environments initially to appear. The ocean in the early ages was
(devoid of oxygen) and acidic.
Answer:
stromatolites and anoxic
Explanation:
i got it right
Can you plz help me I don’t understand this
Answer:
The answer is A
Explanation:
The teeth grinds the food and that is physical and the saliva breaks down the molecules, so that is chemical
What is the probability of getting a short plant from two heterozygous tall plant parents?
Answer. 25% of the heterogeneous cross are short, and the offspring of a homologous dominant and homologous recessive pea plant will always display the dominant trait (phenotype), because they are heterogeneous.
why might a scientist repeat an experiment if she/he didn't make a mistake in the first one? experiment are repeated to
A) make sure she/he gets identical results.
B) see if any portion can be skipped or ignored.
C) prove that your results were incorrect the first time.
D) check to see if the procedure was correct and nothing was left out.
Answer:
D) check to see if the procedure was correct and nothing was left out.
Explanation:
Identify the function of the organ system that the cell to the right belongs to.
Answer:
It is the nerve cell.
Explanation:
Hope it helps you. Please mark as the brainliest.
Cells are able to maintain homeostasis by keeping the perfect balance of water and nutrients inside of them.
Which cell part regulates the materials that leave or enter the cell to maintain this balance?
the nucleus
the chloroplast
the cell membrane
the endoplasmic reticulum
Previous
Answer:
the cell membrane.
Explanation:
controls what materials go into and out of the cell. For example, the cell membrane allows nutrients and oxygen to move into the cell, and carbon dioxide and waste materials to move out of the cell.
The skeletal nervous system is part of the:
Answer:
The skeletal nervous system is part of the somatic nervous system.
I hope this might help u
Ummm u know this cause...nvm
Answer:
Prewash has the prefix that means before
Disable and incorrect have the prefixes that means not or opposite of.
Mistrust has the prefix that means wrong.
Hope this helps!
Also, I think this question belongs in the English topic. If you put your question in the wrong topic, it's harder for people who will know more about the subject to find the question.
What is one physical adaptation of sunflowers?????????
The sunflower is intolerant to shade exposure and needs full sun exposure. It has adapted to this necessity by having a heliotropic head which rotates to follow the sun, hence the name sunflower
describe how you would test a sample of powdered milk to see if it contained reducing sugar
Answer:
The correct answer is - Benedict's test.
Explanation:
To test the presence of the reducing sugar in the milk the best test would be Benedict's test with the help of Benedict's reagent or solution which is a mixture of sodium carbonate, copper(II) sulfate pentahydrate, and sodium citrate. It reacts with the reducing sugars and gives a precipitate of cuprous(I) oxide.
R.CHO + Cu(II)(OH)2 ------> R.COOH + Cu(I)2 O + 2H2O
The presence of reducing sugars results in the oxidation of them by copper iron. This forms carboxylic acid and a reddish ppt. of copper oxide turning the color of solution orange, red or brown
Choose the five senses of the body:
seeing
tasting
touching
moving
thinking
hearing
sensing
smelling
Answer:
Touching, smelling, tasting, seeing,hearing
In _______ joints, the articulating surfaces are flat. (Click to select) In _______ joints, a convex cylinder of one bone fits in a concave depression of the other bone. (Click to select) In _______ joints, a bony process fits within a bony and/or ligament ring. (Click to select) In _______ joints, a rounded bone surface of one bone fits inside a cuplike depression of the other bone. (Click to select) A _______ joint consists of a convex surface of one bone articulating with a concave surface of another bone. (Click to select) In _______ joints, an oval-shaped surface of one bone articulates with an oval depression in another bone.
Answer:
Explanation:
a) In Plane joints,
b) In joints,
c) In pivot joints,
d) In ball -and -socket joints,
e) A saddle joint
f) In ellipsoidal joints,
Leaves and stems are wide and low to the ground. This is an example of an adaptation to PLSSSS help fast
how does the respiratory system interact with the musculoskeletal system
The muscular and nervous systems enable the involuntary breathing mechanism. The main muscles in inhalation and exhalation are the diaphragm and the intercostals (shown in blue), as well as other muscles. Exhalation is a passive action, as the lungs recoil and shrink when the muscles relax.
Starting with 500 calories of energy at the
Primary productivity level in the energy pyramid, tell how much numerically will be available to the primary, secondary, and
tertiary - consumers.
Answer:
secondary
Explanation:
Can you plz help and plz try to get it right this is a major grade
Answer:
The correct answer is A. Cell
nerves connected
to brain
message to the
heat sensors in the
spinal cord
skin of the hand
arm muscle
the effector
message from
the spinal cord
heat from the
flame
transverse section
through the
spinal cord
FIG 9.4.4 Reflex arc
Explain how the nervous system will respond in the above scenario.
[Use the RED ARROWS to assist in your response)