Why do plants need sunlight? Plants make their own food by combining a gas called carbon dioxide, which they get from the air, with water from the soil. ... To power the process, the plant uses the energy of sunlight. A green pigment in the leaves called chlorophyll traps the Sun's energy.
What is added as an anticoagulant to preserve blood specimens?
OA sodium citrate
B
sodium fluoride
O'c. potassium oxalate
OD liquid paraffin
E.
ethanol
Reset
Answer:
C. potassium oxalate for plato / edmentum
Explanation:
I took notes in the class and my notes say -
To prevent blood from clotting, toxicologists add anticoagulants to the blood sample. Anticoagulants such as potassium oxalate (30 mg/mL) is preferred over heparin or ethylenediaminetetraacetic acid (EDTA) because both heparin and EDTA interfere with the detection of certain chemicals, such as calcium, in the blood. If the blood is suspected of carbon monoxide poisoning, a layer of liquid paraffin is added over the blood sample. This layer prevents exposure to atmospheric oxygen.
What happens to the enzyme when the pH is 2?
Answer:
the enzyme becomes denatured
Explanation:
the active site would have been destroyed so much, catalysts can't use it anymore.
When different types of staple fibers are spun together into a single yarn, the result is a
Answer:
String
Explanation:
That is what yarn is.
The movement of water through a cell membrane is *
exocytosis
diffusion
endocytosis
osmosis
Answer: osmosis
Explanation: I learned about it
What is the difference between incomplete and co dominant traits?
Explanation:
In co- dominance, both alleles in the genotype are seen in the genotype. in incomplete dominance , a mixture of the alleles in the genotype is seen in the phenotype
Giraffes get their long necks from stretching for food- an idea discovered by Lamarck
True
False
Answer:
False kind sir/mam
Explanation:
Answer:
The answer is false
Explanation:
The French zoologist Jean-Baptiste Lamarck is usually credited as the first person to suggest that long necks have evolved in giraffes because they allow them to get to the parts other herbivores cannot reach.
so it is false that Giraffes get their long necks from stretching food
If the answer is correct please mark it as brainliest
In the pea garden, Mendel found that yellow seed color was dominant to green (A>a) and round seed shape was dominant to shrunken (R>r). a) What phenotypic ratio would be expected in the F2 from a cross of a pure yellow, round x green, shrunken
Answer:
The correct answer is - 9:3:3:1
Explanation:
A cross between pure yellow round seeds(AARR) to another pure green shrunken seeds (aarr). In the F1 generation, all offsprings are heterozygous yellow round(YyrRr).
Now this heterozygous self-pollination, in the F2 generation, 9 plants are Yellow round, 3 plants are yellow shrunken, 3 plants are green round and 1 plant is green wrinkled are formed.
YR Yr yR yr
YR YYRR YYRr YyRR YyRr
which of the following are characteristics of all living organisms
Answer: the characteristics of all living organisms are response to the enviroment, preproductin, growth, and deveolpment
Explanation:
Answer:
order, sensitivity or response to the environment, reproduction, growth and development, regulation, homeostasis and energy processing
Explanation:
pick any of these I guess
What happens to all the weight of the food we eat? Where do the atoms in the food molecules go?
Answer:
The small intestine absorbs most digested food molecules, as well as water and minerals, and passes them on to other parts of the body for storage or further chemical change.
Explanation:
The small intestine absorbs most digested food molecules, as well as water and minerals, and passes them on to other parts of the body for storage or further chemical change.
What are the functions of small intestine?Three sections make up the small intestine: the jejunum, ileum, and duodenum. It aids in the continued digestion of stomach-derived food. It takes in water as well as vitamins, minerals, carbohydrates, fats, and proteins.
The digestion of food, absorption of body-needed nutrients, and elimination of waste are the primary functions of the small intestine.
The organ of the gastrointestinal tract known as the small intestine or small bowel is responsible for the majority of the absorption of nutrients from food. It receives bile and pancreatic juice and is located between the stomach and large intestine.
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Which of the following characteristics of water is most responsible for the phenomenon we observed in this lesson? 1 point Water is a universal solvent and it flows across the cell membrane toward the higher solute concentration. Water passes through plants from roots to leafs in the living portion of the water cycle known as transpiration. The electrons in a water molecule are not evenly distributed, resulting in a partial negative charge on the oxygen end and partial positive charges on the hydrogen end. Water has a high capacity to store heat; it can absorb a lot of heat and store it. Then it can release the heat slowly over time. Because water is polar, the molecules have the ability to stick together at the surface of a body of water to form surface tension.
Answer:
Because water is polar, the molecules have the ability to stick together at the surface of a body of water to form surface tension.
Explanation:
The above statement is the most suitable characteristics which happens to be responsible for the phenomenon.
What are all living things composed of only one cell one or more cells at least a hundred cells at least a trillion cells
Answer:
I would say one or more cells.
Explanation:
Unicellular organisms like bacteria contain one cell.
A multicellular organism, like us humans, contain many cells.
Therefore, all other options can be ruled out as living things can have one cell, or many cells.
PLEASE HELP!!!!!! I NEED A LOT OF HELP WITH THIS SO I PUT A LOT OF CREDITS FOR IT
Answer:
A C B D
Explanation:
ACBD that what I get
PLZ HELP ITS A BIG GRADE AND I DON'T KNOW IT
Which of these has kinetic energy?
A. a book sitting on a shelf
B. hat and gloves on a table
C. cars parked in a parking lot
D. a child kicking a soccer ball
Answer:
D. A child kicking a soccer ball
The most common way that modern ships transplant non-native species to new environments is by
O allowing ship mascots to escape.
O loading and discharging ballast water.
O deliberately sabotaging the local environment.
O none of the above
Photosynthesis is important to animals because A oxygen, which animals breathe, is released as a byproduct. B carbon dioxide, which animals need for cellular respiration, is released as byproduct. с it prevents any of the sun's energy from being absorbed by animals skin. D it prevents carbon dioxide from destroying animals habitats.
Answer: I'm pretty sure it's B because carbon dioxide is released from plants to help animals and people breathe.
Explanation:
what types of reproductive systems of female
Answer:
A female's internal reproductive organs are the vagina, uterus, fallopian tubes, and ovaries. The vagina is a muscular, hollow tube that extends from the vaginal opening to the uterus.
The creation of new crust at the middle of mid-ocean ridges is also
referred to as... *
A.mountain formation
B.sea floor spreading
C.fault formation
D.a transform boundary
a scientist hypothesizes that a mutation at a single locus is responsible for the pattern of inheritance seen in this pedigree. explain how a mutation in a gene can arise during meiosis
Answer:
Exposure to chemical or radiation.
Explanation:
Mutation in a gene can arise during meiosis due to exposure to chemical or radiation that cause change in the genes. After this change in DNA, the meiosis cell division produces gametes that can be passed to the offspring and contribute to genetic variability of the organism. Meiosis occurs in the sex cells which can be transferred from parents to offspring.
A molding machine in a factory was not working very well. About a third of the time, the plastic squirt guns that it was making come out with a flaw in the handle. The repair mechanic adjusted the stamping pressure. Then she ran one gun through. It came out just fine, so she figured she had solved the problem. What was/were the error(s) in the conclusion of the repair mechanic?
a. Not enough subjects
b. Subjects were not similar
c. Conditions were not kept the same
d. The experiment was not reproduced
Answer:
a. Not enough subjects
Explanation:
In the context, it is given that in a factory, a molding machine is not working properly. The molding machine produces a gun made of plastic. But the machine was produces a defective piece about a third of he time it produces the gun.
The mechanic adjusted and repaired the stamping pressure and ran only one gun through which came out to be fine. But there was an error in the conclusion of the repair mechanic as she did run the machine only one time. She did not have enough subjects and should have run many times to see if the error still exists, as the machine showed error only about a third of the time during the process.
Thus the error in the experiment includes the lack of the enough of the subjects. We cannot come to the conclusion only with one time success.
Answer:
A
Explanation:
not sure but i think
How do scientists use the differences in proteins compare Evolutionary Relationships between organisms?
Answer:
a
Explanation:
PLEASE HELP I WILL GIVE YOU BRAINLIEST EXPLAIN
Which change will increase the kinetic energy of a marble rolling down a ramp?
1-Doubling the weight of the marble.
2-Doubling the volume of the marble.
3-Doubling the speed of the marble.
4-Doubling the mass of the marble.
I believe doubling the speed of the marble will increase the kinetic energy when it rolls down a ramp
Sorry if wrong
Answers
A. a snake and a lizard
B. A tuna and a sparrow
C. A robin and a salamander
D. A frog and a salmon
Answer:
c......... they share the most traits
is plant breeding an art? how?
Answer:
Plant breeding is actually BOTH art and science.
Explanation:
Plant breeding is the changing of the traits for different plants and/or characteristics, and it helps improve the nutrients of the plant.
Hope this helped :)
Brainiest?
Salt water is not drinkable but can be used in agriculture.
True or False
Answer:
Explanation:
True
Answer:
dont trust me all the way but i think its false
Explanation:
In ___ fertilization, fertilization occurs within the body of the female.
A. Conjugation
B. Internal
C. External
D. Pollination
Answer:
B) internal
Explanation:
In internal fertilization, fertilization occurs within the body of the female.
Internal also translates to: Physical, Organic, Physiological, and Bodily.
(THIS IS FOR BIOLOGY AND SCIENCE.)
Hope this helps you with your exam/test! Good luck! <3
~ Answered by,
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Skin Our entire body is covered with a protective layer of epithelial cells. The layer of epithelial cells acts as the first line of
defense against invaders from the exterior. Skin cells are constantly dying. Additionally, they are frequently damaged and this
could lead to gaps in the epithelial barrier. This protective layer of cells is critical to homeostasis. How does our body counter
epithelial cell death and damage to maintain homeostasis?
A
through the process of meiosis
B)
through cell replication or mitosis
by slowing down the processes of the cell cycle
D)
by producing more than 2 daughter cells per mitotic division
Answer:
B. Through cell replication or mitosis.
Explanation:
Meiosis take place only during a sexual reproduction situation (with sex cells), while mitosis is the multiplication or replicating of normal cells. The body creates and keeps balance by making up for what has been lost through adding more of it.
Have a fantastic rest of your day, and please mark me brainliest! :3
100 POINTS!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
What happens when organisms reproduce
a. they grow and develop
b. they sense change in their environment
c. they maintain a stable internal environment
d. they make organisms similar to themselves
Answer:
d. they make organisms similar to themselves
Explanation:
The two main
jobs of the Respiratory System are
Sending blood through veins and arteries
Protecting and comforting your Shiv Patella
Chewing and swallowing food
inhaling oxygen andrexhaling carbon dioxide
Answer:
the is no anser bicos the is not a question
Answer:
Inhaling oxygen and exhaling carbon dioxide
Explanation:
Major function of the respiratory system is to supply the body with oxygen and dispose carbon dioxide.
Results from multiple experiments suggest that the ActA protein of Listeria, an integral membrane protein expressed on the cell surface, is the only bacterial protein that is required for the movement of the bacterium within its host cell. Which combination of the following observations shows that ActA is both, necessary and sufficient for bacterial movement?
I. ActA binds to the Arp2/3 complex
II. E. Coli in which ActA is expressed moves in host cell cytosol
III. Listeria lacking the ActA gene fail to move inside the host cell cytosol.
IV. ActA has 3 transmembrane domains
V. Arp2/3, when activated, nucleates a branched actin network
a. I and II
b. II and III
c. I and III
d. III and IV
e. I and V
Answer:
b. II and III
Explanation:
The Actin assembly-inducing (ActA) protein is an integral membrane protein localized on the bacterial surface. It has been shown that ActA is necessary and sufficient to induce bacterial movement within host cells, regardless of other proteins. The function of the ActA protein for bacterial movement within host cells was discovered by identifying mutant Listeria bacteria for the gene encoding this protein which were unable to spread from cell to cell. Subsequently, by inducing mutations in other genes of the bacterial genome, researchers discovered that actA was the only protein involved in the actin assembly, which is required for cell-to-cell spread.
Which of the following is a technology used by foresters?
a.
infrared photography
b.
aerial photography
c.
remote sensing
d.
all of the above
Answer:
d
Explanation:
in edg 2021
The technologies used by foresters are infrared photography, aerial photography, remote sensing. The correct option is d.
What are foresters?A forest is a sophisticated biological system where trees predominate as the main form of life.
The most effective ecosystem in nature is a forest, where a high rate of photosynthesis has an impact on both plant and animal systems in a web of intricate biological interactions.
Foresters grow seedlings in tree nurseries for initiatives involving the establishment or regeneration of woodlands. Tree genetics are improved by forestry.
A person who practices forestry, the science, art, and profession of managing woods, is referred to as a forester.
Foresters work on a variety of projects, such as managing protected areas and ecological restoration.
Foresters use infrared photography, aerial photography, and remote sensing technology.
Thus, the correct option is d.
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