Answer:
i have no idea
Explanation:
search it it
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.
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Brainiest?
Describe how hydrogen bonds form between separate water molecules
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:
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.
How can you find a percentage chance from a Punnett square?
Explanation:
Depend the cumulative number for the Punnett boxes.
It gets you the amount of expected offspring in general.
Divide the phenotype's couple of instances by the cumulative number of descendants.
Multiply the amount from step 4 by 100.
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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explain the human excretory system in detail
Explanation:The excretory system is the system of an organism's body that performs the function of excretion, the bodily process of discharging wastes. ... There are several parts of the body that are involved in this process, such as sweat glands, the liver, the lungs and the kidney system. Every human has two kidneys.
humans have one of four blood types: A,B, AB, or O. Explain what determines a persons blood type. What antigens are on the blood cells in a person withc each of these blood types? What antibodies are in the blood of a person with each of these blood types?
Answer:
if you find this helpful, Mark brainliest
Answer:
Just like eye or hair color, our blood type is inherited from our parents. Each biological parent donates one of two ABO genes to their child. The A and B genes are dominant and the O gene is recessive.
blood group A – has A antigens on the red blood cells with anti-B antibodies in the plasma.
blood group B – has B antigens with anti-A antibodies in the plasma.
blood group O – has no antigens, but both anti-A and anti-B antibodies in the plasma.
blood group AB – has both A and B antigens, but no antibodies.
PLEASE HELP!
QUESTION 7
NIH Guidelines require risk assessments to be performed.
A. True
B. False
What is the role of enzymes in the DNA replication process? (You may use the Gizmo Building DNA lab to help you with this)
А
Enzymes link adjacent nucleosides together, becoming an integral part
of the structure of the new strands of DNA.
B
Enzymes split the DNA molecule into two rails and then transport
corresponding nitrogenous bases to each rail.
с
Enzymes read the DNA code and build a new DNA molecule from
scratch
D
Enzymes link together to form a template for a new DNA molecule to
be built
Answer:
C Enzymes read the DNA code and build a new DNA molecule from scratch
Answer:
B
Explanation:
Its B I just did the question but on the Gizmo it says C cause the answer choices are wrong when u typed the question.
which statement is an example of a feedback mechanism in humans
1.) increase in the level of blood sugar results in the pancreas increasing the amount of insulin it secretes
2.) increase exposure to pathogenic bacteria result in an increase in the number of red blood cells produced
3.) an increase in exercise results in a decrease in the rate of respiration
4.) increased muscle activity results in a decrease in heart rate
Answer:
1.
Explanation:
Controlling the level of sugar in the blood is an example of a feedback mechanism
The feedback mechanism man is a physiological regulation system that is found in a living body that works to return the body to the normal or earlier internal state. It is commonly called the homeostasis mechanism.
This feedback loop can be seen in any day-to-day function such as a rise in blood pressure levels, which results in the increase of insulin secretion in the body. An increase in physical activity leads to an increase in respiratory rate and the homeostatic mechanism will gradually lead to the body to the previous state.Thus the option 1 is correct.
Learn more about the example of a feedback mechanism in humans.
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A hygrometer uses hair to measure
O A. humidity
B. wind direction
O c. barometric pressure
O D. temperature
Answer: A. humidity
Explanation:
Answer:
Humidity
Explanation:
Strands of hair can relax and lengthen when the humidity increases, and then contract again when the humidity decreases. In fact, the rate of change in the length of hair strands is so dependable that they can actually be used as the basis for a hygrometer, a device that measures the humidity level in the air
A classroom has 10 rows and 12 columns of chairs.on a rainy day only 35 were occupied.how many chairs were empty
Answer:85? I think sorry if I am wrong but from i understood I think it is right.
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
What did Wallace conclude about where new species arise?
Answer:a continuous process of variation leading to divergence from the parent stock
Explanation:
Wallace thought that there was a continuous progression of variation which gave the offspring an advantage over parents and diverged from them in traits, which eventually gave rise to new species
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
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:
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.
pleaseeeee helpppp
Within a plant, photosynthesis is critical. It provides cells with the glucose they need for
energy. Photosynthesis is important for another reason, too. It's part of the flow of carbon
through organisms and the environment. This cycle, known as the carbon cycle, is essential
for life on Earth. It includes several processes that are occurring all the time. When plants
photosynthesize, carbon is removed from the atmosphere as carbon dioxide. When animals
and plants use cellular respiration, carbon is released into the atmosphere as carbon
dioxide. Organisms that die and are buried for millions of years turn into fossil fuels, which
are made of carbon. When humans burn those fossil fuels, carbon is released into the
atmosphere as carbon dioxide. Without enough carbon dioxide in the atmosphere, the
planet would be too cold. But too much carbon dioxide contributes to the warming of the
planet that could make it too hot to survive.
Based on the passage, what is one reason that the carbon cycle important?
A It adds carbon into the atmosphere whenever the level begins to drop too low.
B
It helps maintain a level of carbon in the atmosphere that is neither too hot nor
too cold.
с
It removes carbon from the atmosphere whenever the level begins to become
too high.
D
It releases carbon into space, preventing it from building up in Earth's
atmosphere.
Answer:
B
Explanation:
just did that on flocabulary
PLEASE ANSWER!! I WILL GIVE BRAINLIEST!!!
Which layer contains most of the air pollutants released by human
activity?
A. troposphere
B. mesosphere
C. thermosphere
D. asthenosphere
Answer:
A: Troposphere
Explanation:
The troposphere contains the largest percentage of the mass of the atmosphere relative to the other layers. It also contains some 99 percent of the total water vapor of the atmosphere. The temperature of the troposphere is warm (roughly 17º C) near the surface of the earth.
Answer:
a
Explanation:
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
Mecanismo de proteccion que posee el cuerpo que ocurre de forma pasiva a traves de la nariz?
Answer:
membrana mucosa que recubre las fosas nasales
Explanation:
Las fosas nasales se encuentran recubiertas por una membrana mucosa y unos pelos diminutos conocidos como cilios que ayudan a filtrar el aire que llega a los pulmones. Esta membrana posee dos tipos de mucosas: mucosa respiratoria y mucosa olfativa. La mucosa respiratoria de la cavidad nasal posee células caliciformes que secretan una sustancia llamada moco la cual tiene la finalidad de humedecer y calentar como así también de atrapar microorganismos patógenos/residuos del aire los cuales son finalmente removidos por los cilios que "barren" estas sustancias hacia la faringe. Por otra parte, la mucosa olfativa de la cavidad nasal se caracteriza por poseer células nerviosas olfativas las cuales forman parte del sentido del olfato.
Help I’m being timed
Answer:
its is grass. mouse snake
What traits is controlled by multiple alleles in humans?
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.
Which is a societal problem that science can best help solve?
bullying in schools
diabetes in children
domestic violence
rainfall patterns
Answer:
Diabetes in children
Explanation:
Answer:
It is:
B. Diabetes in childrenExplanation:
Took the test
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.
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
Basal metabolic rate is the body's resting rate of a drive reduction. b insulin secretion. c homeostasis. d energy expenditure. e motivation.
Answer:
d energy expenditure.
Explanation:
Basal metabolic rate is the body's resting rate of energy expenditure.
Simply stated, Basal metabolic rate describes the amount of calories that is required to keep the human body to function properly and perfectly at rest.
Calorie can be defined as a standard unit used for the measurement of the amount of energy present in foods and drinks.
Basal metabolic rate is the body's resting rate of a drive reduction is energy expenditure.
The BMR not entirely settled by roundabout calorimetry by estimating Q O 2 , the pace of oxygen utilization. In contrast to the BMR, the determination of the resting energy expenditure (REE) does not require a 12-hour fast.
Both BMR and RMR show the quantity of calories an individual consumes very still. If you're trying to control your weight, this information may be helpful. Calculating a person's BMR or RMR can help them determine how many calories they should cut out each day if they are trying to lose weight.
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