Answer:
Glucose from digested food enters intestinal epithelial cells by active transport. Why would intestinal cells use active transport when most body cells use facilitated diffusion?
Explanation:
Answer:
Passive
Explanation:
The answer is passive!!
What is the law of dominance
What is the law of segregation
Answer:
Mendel's law of dominance states that in a heterozygote, one trait will conceal the presence of another trait for the same characteristic. ... The recessive allele will remain “latent,” but will be transmitted to offspring by the same manner in which the dominant allele is transmitted.
What is the law of segregation- The law of segregation ensures that a parent, with two copies of each gene, can pass on either allele. Both alleles will have the same chance of ending up in a zygote. In sexually reproducing organsisms, the genome is carried in two identical copies. A copy was inherited from each parent, in the form of a gamete
Explanation:
Which of the following occurs in lactic acid fermentation?
a. Electrons pass through the electron transport chain.
b. Oxygen is consumed.
c. Lactic acid is converted into pyruvic acid.
d. NAD+ is regenerated for use in glycolysis.
Answer:
D
Explanation:
Thats all i know hope it helps
Lactic acid is created when pyruvate is reduced to make it, while NAD+ is created when NADH is oxidized. Reducing pyruvate to lactate requires a proton from NADH and electrons from the molecule. Thus, option D is correct.
What is the role of Lactic acid fermentation?Anaerobic respiration occurs when human muscle cells do not receive enough oxygen. So, the fermentation of lactic acid results in the production of energy molecules. The result of this process is lactic acid.
Oxidize electron transporters to allow for glycolysis re-use. Without the aid of oxygen, fermentation enables cells to generate chemical energy from the breakdown of sugar, such as glucose.
Therefore, in lactic acid fermentation, NAD+ is regenerated for use in glycolysis.
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what is the average density of the earths crust
Answer:
i hope it helps :)
Explanation:
2.6 grams per cubic centimeter
Which experiment could the scientists use that would best determine if these tiny structures are spores?
Answer:
The experiment that scientists could use that would best determine if the tiny structures are spores is called Opto-Electronic Imaging and Imaging Processing.
Explanation:
Optoelectronics speaks to the body of knowledge and of electronic devices that source, detect and control light and how they are used or applied. It is founded on the quantum mechanical effects of light on electronic materials.
Besides Optoelectronic Imaging, there are several other techniques that can be used to identify spores. Some of them are:
1. The culture-based methods: These methods involve the growing of spores on an agar plate and on the enumeration of colony units formed therein.
2. Culture-independent methods: These methods are based on
the counting of spores under an electron microscope. This method utilizes the hybridization of DNA for the detection of pores. Opto-electric imaging is preferred and considered more efficient because it is faster than all the above processes that have been mentioned. The above processes have the disadvantage of time-consumption.
Cheers
Marcus left his candy bar on the counter so he would have a treat after school. When he arrived home, he saw that the candy bar was half eaten. What did Marcus know from the evidence he got by observing the candy bar?
a. The environment interacted with Marcus’ candy bar.
b. An organism interacted with Marcus’ candy bar
Answer:
b
Explanation:
because something interacted with the candy bar, so thats why its half eaten (sorry i dont have good explanations-)
Will give the brainliest Question 4 of 30
What is the following diagram called?
Species 1 Species 2
Species 3
Species 4
Ancestral species
to
Species 1 and 2
Ancestral species
to
Species 3 and 4
Common Ancestor
A. A phylogenic tree
B. A Punnett chart
C. A pedigree
D. A cladogram
Answer:
A. a phylogenetic tree. it says that i need 20 more characters to enter so this is me wasting them. but the answer is A
The given diagram basically represents a cladogram. The correct option is D.
What is cladogram?A cladogram is a type of diagram that depicts the evolutionary relationships between organisms.
It is a branching diagram in which the nodes represent the descendants' most recent common ancestor. The cladogram is based on the organisms' shared characteristics or traits.
These characteristics, which can be physical or genetic in nature, are used to classify organisms into clades.
Clades are groups of organisms that share a common ancestor, and they are represented on the cladogram as branches.
The organisms are more closely related the closer the branches are to each other. Cladograms are commonly used in biology to study organisms' evolutionary histories.
Thus, the correct option is D.
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Can someone help me with 5
Answer:
Nitrogen
Explanation:
The diagram above shows the process of
natural selection. What is X?
A competition
B evolution
Cmimicry
D reproduction
Answer:
The answer is reproduction
Explanation:
because it need generation to keep on going with the cycle
Answer: D.) Reproduction
5. You cross one black (Bb) mouse with one brown (bb) mouse. Complete the Punnett square to find the expected ratio of black to brown mice pups. All six mice pups in the litter have brown fur. Explain this result.
I think all the mice had brown fur due to epistasis
Explanation:
The expected results would be 50% black and 50% brown and the ratio could be 2:2. But, if epistasis occurred and the brown fur gene overshadowed the black fur gene, then all the offspring could have brown fur.
The Punnett square to find the expected ratio of black to brown mice pups is to be considered when all the mice had brown fur because to epistasis.
Completion of the Punnett square:The expected result should be 50% black and 50% brown and the ratio should be considered as the 2:2.
In the case when epistasis should be arisen and brown fur gene should be overshadowed the black.
Hence, the same should be considered.
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define the following :
parasite :
An organism that lives in or on another organism and gets its food from or at the expense of its host
Answer:
an organism that lives in or on an organism of another species (its host) and benefits by deriving nutrients at the other's expense.
Which change in the earth's atmosphere allowed organisms to live on land?
A) a collision with a comet
B) the development of the ozone layer
C) a strong burst of particles from the sun
D) the absorption of carbon dioxide by oceans
Explanation:
hi it's my first answer lol btw the answer is
D :)
What is the purpose of mitotic cell division in multicellular organisms (give all 3 purposes)? Compare this to the purpose of mitotic cell division in single celled eukaryotes. Use vocabulary words.
Answer:
The correct answer is - The growth and tissue repair are the major purpose of mitotic cells in multicellular organisms.
Explanation:
The purpose of mitotic cell division in multicellular organisms can be understood by the three points:
1. somatic cells divide through mitotic cell division.
2. Every multicellular organism shows growth and develop with time in size
3. Every cell of the body is repaired with the help of the mitosis that replaces the damaged cell with the new cell.
Single-celled eukaryotes show asexual reproduction by binary fission which is a form of mitosis.
Which trophic level is an omnivore (eats plants and meat)?
I believe they are the third trophic level. Please tell me if i'm wrong!
BRAINLIEST!! CORRECT ANSWERS ONLY!! 10 POINTS
DESCRIBE the Water Cycle!
Answer:
it comes 4 forms evaporation , condensation, precipitation and i believe water vapor it repeats it's own cycle.
Please help me! and please don't just take the points
True or False: Genes and chromosomes are found in every cell.
True or False: ALL genes that are inherited show up in the offspring.
True or False: Characteristics you see on an organism will ALWAYS be the same as the parent.
Answer:
1.every cell in the human body contains chromosomes. Genes are found in ALMOST every cell of the body.
2.True
3.false
Explanation:
why is important to use an organism with a recessive phenotype in a cross with an organism of unknown Genotype
Answer:
One of the central conclusions Mendel reached after studying and breeding multiple generations of pea plants was the idea that "[you cannot] draw from the external resemblances [any] conclusions as to [the plants'] internal nature." Today, scientists use the word "phenotype" to refer to what Mendel termed an organism's "external resemblance," and the word "genotype" to refer to what Mendel termed an organism's "internal nature." Thus, to restate Mendel's conclusion in modern terms, an organism's genotype cannot be inferred by simply observing its phenotype. Indeed, Mendel's experiments revealed that phenotypes could be hidden in one generation, only to reemerge in subsequent generations. Mendel thus wondered how organisms preserved the "elementen" (or hereditary material) associated with these traits in the intervening generation, when the traits were hidden from view.
It is important to use an organism with a recessive phenotype in a cross with an organism of an unknown genotype to identify the recessive traits.
What are phenotype and genotype?The observable traits of an individual are the result of gene expression; the clinical manifestation of a person with a certain genotype is called the phenotype of an individual. Some examples of the phenotype are height, skin color, eye color, hair nature, etc.
The term "genotype" refers to an organism's whole gene pool, or, in other words, the genetic makeup of that creature. The phrase can also be used to describe the alleles, or different forms of a gene, that an organism carries in a more specific meaning.
A recessive phenotype is used in a cross with an organism of unknown Genotype to identify the recessive traits.
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How do you think specific traits help organisms access or utilize resources more efficiently?
Answer:
Individuals with adaptive traits, traits that give them some advantage are more likely to survive and reproduce. Over time, these advantageous traits become more common in the population. Through this process of natural selection, favorable traits are transmitted through generations.
here are some example
Adaptatio ——A trait that improves an organism's ability to survive and reproduce in an environment
Fitness——The ability of an organism to survive and reproduce
Artificial selection——Selective breeding of organisms to promote the appearance of desirable traits in offspring
Explanation:
I need help on this question
7. Which animal is a predator?
grasshopper
b. pond snail
C. crane fly
d. largemouth bass
4. Why does sexual reproduction result in offspring with genetic variation?
Answer: Sexual reproduction provides genetic diversity because the sperm and egg that are produced contain different combinations of genes than the parent organisms.
Explanation: Each resulting cell, or gamete, resulting from meiosis has only half the amount of DNA as the parent cell.
(Image below) PLEASE HELP!
Show are meiosis and mitosis different
Answer:
The purpose of mitosis is the creation of diploid somatic cells and the purpose of meiosis is the creation of haploid sex cells.
Explanation:
Mitosis takes place in somatic, or body cells, and meiosis takes place in gametes, or sex cells. The purpose of mitosis is growth and repair, while the purpose of meiosis is creating gametes with half the normal number of chromosomes and is for reproduction. Mitosis goes through Interphase, Prophase, Prometaphase, Metaphase, Anaphase, Telophase, and Cyokinesis once to produce two genetically identical diploid somatic daughter cells. Meiosis goes though that twice (Meiosis I and Meiosis II) to produce 4 genetically unique haploid gametes. It has stages (Prophase, Metaphase, Anaphase, and Telophase) such as Prophase I and Prophase II because meiosis occurs twice. Another difference is that mitosis happens throughout your life and meiosis occurs before females are born and throughout a males life.
the cells produced during meiosis are?
Answer:
Meiosis is a type of cell division that reduces the number of chromosomes in the parent cell by half and produces four gamete cells. This process is required to produce egg and sperm cells for sexual reproduction. During reproduction, when the sperm and egg unite to form a single cell, the number of chromosomes is restored in the offspring.
Explanation:
sourced from nature.com
Name the 5 characteristics of a mineral
Answer:
They are natural, inorganic, solid, and are chemical composition and have a crystalline structure.
list the systems found in animals (not more than five) with their constituent (not less than 2)
Answer: proper functioning of its component cells, tissues, organs, and organ systems.
Explanation:
Why is your skin classifed as respiratory
organ?
Answer:
Skin and Gills
Other animals, such as earthworms and amphibians, use their skin (integument) as a respiratory organ. A dense network of capillaries lies just below the skin, facilitating gas exchange between the external environment and the circulatory system.
Explanation:
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The area of soil in which the pores are totally filled with water is called the ____________________ zone.
Answer:
The Saturated Zone
Explanation:
Which process describes how many pure-bred dogs have been produced?
A. Cloning
B. Crossbreeding
C. Selective breeding
Answer:
C.
Explanation:
While I'm against forcing animal to breed, I know the studies sorta.
¿ la masa de un reactivo era diferente a la de otro?
How would a cloned animal compare with the original animal whose DNA
was copied?
A. The clone would have all of the traits of the original animal except
for the new genetically engineered traits.
B. The clone would have identical genetic traits but differ in the traits
the original acquired during its life.
c. The clone would be identical in all ways to the original animal and
have the same genetic and acquired traits.
D. The clone would be identical to the original in traits acquired
during its life but differ in its genetic traits.
Answer:
B
Explanation:
B is your answer because the clone would have identical genetic traits but differ in the traits the original acquired during its life.
Hope this helps:)
Pls mark brainlist
Answer: its B i got a 100% on the quiz
Explanation: A.P.E.X.