Answer:
D. 3/4
Explanation:
I took the test and got it right.
What are the solutions of water pollution
Answer:
•Water conservation
•plastic waste reduction
•Stormwater management
•Green agriculture
What is the layer under the Lithosphere called?
What does nitrate do to eluglena plz look at the picture but if the eluglena was increased would chloroplasts decrease?
Answer:
Euglena have been shown to successfully process nitrates as a form of nitrogen. Chloroplasts within the euglena trap sunlight that is used for photosynthesis So YES the chloroplasts would DECREASE. There is a blance to everything and if that blance is messed up then the plant will soon feel somthing wrong. If that makes since.
Explanation:
Specifically how did Mary Mallon spread typhoid bacteria (Salmonella typhi) to the families she cooked for, as cooking food kills bacteria
Answer: Mary Mallon was able to spread the typhoid bacteria to the families she cooked for even as cooking kills bacteria because she was a healthy carrier of salmonella typhi who prepared certain foods for these families, that doesn't require cooking, without vigorously scrubbing her hands.
Explanation:
The genus salmonella consists of a group of bacilli which can affect man leading to the following conditions:
--> Enteric Fever
--> Gastroenteritis
--> Septicaemia and
--> Carrier state or condition.
Salmonella typi causes the enteric fever called TYPHOID FEVER. A healthy individual can be infected with the bacteria through injection of faecal contaminated food ( faeco- oral route). On reaching the gut,the organism attach themselves to the intestinal villi penetrating the lamina propria and submucosa. Their major factor of virulence is the inability to be killed after being phagocytosed by polymorphs and macrophages. They enter the blood stream through the thoracic duct causing transient bacteriaemia. During this period, the bacilli are then seeded into the liver, kidney and gall bladder where further multiplication occurs. The massive discharge of these bacilli from gall bladder leads to onset of the clinical disease.
These bacilli tends to persist in the kidney and gall bladder( as it's a good culture media for the organism). These are seen in individuals who become carriers following inapparent infection and they are called HEALTHY CARRIERS. They shed the bacilli intermittently from their faeces and urine
Mary Mallon, an Irish cook, was a healthy carrier of salmonella typhi who constantly shed the bacteria in her faeces and urine. Although the bacilli is destroyed when subjected to high temperature ( when cooking), the families she cooked for still came down with the illness. This was so because, since the bacteria can be transmitted through faeco- oral route, she wasn't educated enough to vigorously scrub her hands before handling foods that doesn't require cooking,for example vegetable salads.
The science that specializes in naming and classifying organisms is
Answer:
taxonomy
Explanation:
The International Fisheries Commission was formed to:
Control halibut fishing
Help conserve salmon
Study fish biology
Develop new alternatives to trawl fishing
Answer:
control halibut fishing
Which letter identifies a fringing reef?
Answer: letter D
Explanation: because if you can see it is real small so it means it is a fringing reef and its the first mountain which leaving x the fludding if you put them in order it would be YZX
Answer:
D
Explanation:
A is a chain of molecules linked with peptide
bonds.
Answer:
Polypeptide
Explanation:
Select the correct answer.
Why will a decrease in pH of the stomach affect protein digestion?
OA. Decrease in pH of the stomach will distort the structure of peptides in food, which affects the action of the enzyme pepsin.
O B. Decrease in pH of the stomach will distort the active site of the enzyme pepsin, which affects its
action.
O C. Decrease in DH of the stomach will distort the active site of the enzyme lipase, which affects protein digestion. Yes
Answer:
cats
Explanation:
n
Which statement correctly describes an interaction between organelles in the model?
A
Letter U and letter S control the collection and release of waste from the cell.
В.
Letter T and letter R store the genetic material necessary for replication of the cell.
ОООО
C
Letter Q and letter S are responsible for creating and delivering nutrients throughout the cell.
D
Letter U and letter R are involved with the processes of transcription and translation for the cell.
Answer:
B) letter T and letter R store the genetic material necessary for replication of the cell
T-nucleus and R-mitochondria
The statement that correctly describes an interaction between organelles is : ( D ) Letter U and Letter R are involved with the processes of transcription and translation for the cell.
Letter U represents the Nucleus of the plant cell model attached while the Letter R represents the cytoplasm of the cell model.
The nucleus of a cell contains the genetic material ( DNA ) of the cell while the cytoplasm fills up the cell and is enclosed by the plasma cell membrane of the cell. Transcription involves the synthesis of RNA from a DNA template contained in the Nucleus and this process involves, The nucleus and cytoplasm of a cell.
Hence we can conclude that The statement that correctly describes an interaction between organelles is : ( D ) Letter U and Letter R are involved with the processes of transcription and translation for the cell.
Learn more : https://brainly.com/question/13206365
18. Marlon took the microscope and observed a sliced plant leat. He switched it into 100% magnification and saw
a green pigment. In which part of the plant cellis it found?
a nucleus b. mitochondrion G chloroplast d. lysosome
Answer:
chloroplast
Explanation:
its is the green pigment in the plant. it allows photosynthesis to take place
A pure-breeding, tall pea plant with white flowers is crossed with a pure-breeding, short plant with red flowers. The F1 plants are tall, with red flowers. When allowed to fertilize themselves, these produce the following F2: 326 tall, red; 104 tall, white; 117 short, red; and 29 short, white. You are conducting a Chi-Square analysis and what is the null hypothesis?
Answer:
Null Hypothesis -
The observed frequency is approximately equal to the expected frequency of phenotype.
Explanation:
Pure Breeding Cross - TTww x ttWW
Genotype of offspring in F2 generation - TtWw
Null Hypothesis -
The observed frequency is approximately equal to the expected frequency of phenotype.
The chi square analysis is attached
The degree of freedom for this question is 3
The p value for X^2 estimated through chi square test is 0.5
Hence the null hypothesis is accepted.
identify the reactants products and basic functions of photosynthesis
The reactants, products and function of photosynthesis are required.
Reactants are carbon dioxide [tex](CO_2)[/tex], water [tex](H_2O)[/tex] and light.
Products are glucose [tex](C_6H_{12}O_6)[/tex] and oxygen [tex]O_2[/tex].
The basic function photosynthesis is to produce fuel.
The reaction of photosynthesis is
[tex]6CO_2+6H_2O\overset{light}{\rightarrow}C_6H_{12}O_6+6O_2[/tex]
The reactants are carbon dioxide [tex](CO_2)[/tex], water [tex](H_2O)[/tex] and light.
The products are glucose [tex](C_6H_{12}O_6)[/tex] and oxygen [tex]O_2[/tex].
Function of photosynthesis.
Photosynthesis is used by plants to produce fuel which provides energy for their functioning. The fuel is stored in the form of sugars.
Learn more:
https://brainly.com/question/1388366
https://brainly.com/question/1757345
Howmanychromosomes would be present in the sperm cells of a mosquito?
Answer:
23
Explanation:
Answer:
3
Explanation:
The only exception to the six chromosomes per cell rule for mosquitoes would be the gametes, or sex cells. When cells in the ovary or teste undergo meiosis, the result is egg or sperm cells which are haploid, meaning that they have just one copy of each chromosome, for a total of three chromosomes
Which of these are the 4 requirements for natural selection to occur?
Variation in populations
Equal access to resources
Adaptations
Overproduction of offspring
Traits are heritable
Sexual reproduction
Variation in reproductive success
Mutations
Answer:
four requirements for natural selection are given below:
Mutations
Variation in reproductive success
Sexual reproduction
Adaptations
Explanation:
Which of the following best describes how sedimentary rock forms?
A. Molten rock beneath the surface of earth cools and becomes solid.
B. Layers of sediment becomes compressed overtime to form rock
C. Chemical processes or changes in pressure or temperature change a rock
D. Molten rock reaches the surface and cools to become solid rock.
Answer:
la respuesta B la describe mejor
Which of the following rows in the table best compares the function of a plant's xylem and phloem? I Need help ASAP!
Row 1
Xylem
- transports glucose absorbed by the roots to the rest of the plant
- alive at maturity
Phloem
- transports water and nutrients produced by photosynthesis in the leaves to the rest of the plant
- dead at maturity
Row 2
Xylem
- transports glucose produced by photosynthesis in the leaves to the rest of the plant
- dead at maturity
Phloem
- transports water and nutrients absorbed by the roots to the rest of the plant
- alive at maturity
Row 3
Xylem
- transports water and nutrients absorbed by the roots to the rest of the plant
- dead at maturity
Phloem
- transports glucose made during photosynthesis in the leaves to the rest of the plant
- alive at maturity
Row 4
Xylem
- transports water and nutrients produced by photosynthesis in the leaves to the rest of the plant
- alive at maturity
Phloem
- transports glucose absorbed by the roots to the rest of the plant
- dead at maturity
Answer:
row 3
Explanation:
xylem transport water and nutrient absorbed by the root to other part of the plant
Answer:
Row 3
Explanation:
I took the exam
What’s the answer to this pls
32. An early consequence of the release of oxygen gas by plant and bacterial photosynthesis was to a. make life on land difficult for aerobic organisms. b. change the atmosphere from oxidizing to reducing. c. make it easier to maintain reduced molecules. d. cause iron in ocean water and terrestrial rocks to rust (oxidize). e. prevent the formation of an ozone layer.
Answer:
d. cause iron in ocean water and terrestrial rocks to rust (oxidize)
Explanation:
The Great Oxygenation Event (GOE) refers to the introduction of huge amounts of free oxygen into the atmosphere. This phenomenon was caused by photosynthetic cyanobacteria during the Paleoproterozoic, i.e., 2.5–2.2 billion years ago. During this period, oxidized iron minerals appeared in the soil and also were deposited on the deep ocean floor due to reactions with oxygen in the seawater from oceans. Moreover, during the Devonian (approximately 410- 360 million years ago), land plants greened the continents and it had brought higher levels of atmospheric oxygen, thereby increasing the amount of oxidized iron in the soil and rocks.
Leona drew a diagram to compare ginkgoes and conifers.
Which characteristic belongs in the area marked X?
are deciduous
produce cones
look like palm trees
are the largest group
Answer:
A. are deciduous
Explanation:
Ginkgo trees are broadleaf trees or deciduous trees.
Answer: The answer is A .Are deciduous
Explanation:) Hope this helps brainliest would be appreciated
:);):);)
(L1) The plasma membrane of a cell is selectively permeable (or semi-permeable), which means it
A.controls all cellular activities.
B.is responsible for asexual reproduction.
C.allows some materials to pass.
D.has a carbohydrate foundation,
Answer:
C. Allows some materials to pass.
Explanation:
Answer:
c
Explanation:
Being selectively permeable means that it selects what comes in and what goes out.
Light-skinned people generally have a greater proportion of which pigment in their skin?
Keratin
Pheomelanin
Eumelanin
Carotene
Answer:
Pheomelanin
Explanation:
Dark-skinned individuals produce more melanin than those with pale skin.
Light-skinned people typically have a greater proportion of pigment in their skin Pheomelanin, Dark-skinned persons produce more melanin than those with pale skin.Thus, option "B" is correct
What is the difference between pheomelanin and eumelanin?
Eumelanin is black or brown tint and pheomelanin is red or yellow pigment.
Individual who create lots of pheomelanin tend to have lighter skin, often because of freckling.
Freckles occur when melanocytes clump together. Melanocytes are generally scattered rather evenly in the skin.
Thus, option "B" is correct, Dark-skinned individuals produce more melanin than those with pale skin.
To earn more about pheomelanin click here:
https://brainly.com/question/15414575
#SPJ2
2. Messages move to and from the brain along thin cells called?
Answer:
Messages to and from the brain travel along the nerves, which are strings of long, thin cells called neurons.
Explanation:
Answer: Messages to and from the brain travel along the nerves, which are strings of long, thin cells called neurons (see Figure 6.2). Chemical- electrical signals travel down the neurons much as flame travels along a firecracker fuse. ... Dendrites receive impulses, or messages, from other neurons and send them to the cell body.
5.Write observation and conclusion of each of the following activities
Answer:
Water puts pressure depends on their amount.
Explanation:
On the left side, there is less quantity of water in the tube that put less pressure on the bag present at the bottom and the bag swells slightly while on the other hand, on the right side, there is more amount of water in the tube that puts large pressure on the bag located at the bottom and as a result it swells higher than the other bag so we can conclude that more water puts more pressure and less water puts less pressure.
What is the energy-rich molecule that is released during cellular respiration?
Answer:
ATP, or adenosine triphosphate
Explanation:
offspring growing from a piece of its parent
A)budding
B)fission
C)regeneration
Answer:
Explanation:
B FUFISSION
c) regenergation thats why we are different our parents
Which of the following statements is true regarding the "Egg Slap" demonstration on Tuesday and how it relates to Newton's First Law of Motion?
A.
The external force acting upon the plate and the egg was the applied force from the hand hitting both of them away.
B.
The external force acting upon the egg was the applied force from the hand hitting the plate out of the way.
C.
The external force acting upon the plate was the applied force from the hand. The external force acting upon the egg was gravity.
D.
The external force acting upon the egg was the applied force from the hand. The external force acting upon the plate was gravity.
Answer:
Probably B, if not, A
Explanation:
If the word "diversity" means "variety" and the prefix "bio-" means "life", what do you think the word "biodiversity" in an ecosystem means?
Answer:it means a verity of life
Explanation:because like you said diversity means verity and bio means life
What are 3 astronomical objects that radio waves can detect.
Answer: Radio telescopes look toward the heavens to view planets, comets, giant clouds of gas and dust, stars, and galaxies
Explanation: By studying the radio waves originating from these sources, astronomers can learn about their composition, structure, and motion.
Mark me brainliest please please please please please please please please!!!!!!!!!!!!
what is the main way viruses cause diseases in the body?