Answer:
The element of the xylem in vascular bundle is less than the phloem because the Xylem carries water which is a raw material to manufacture the food.
Explanation:
A pair of xylem and phloem is termed to be a 'vascular bundle'.
The purpose of the Xylem tissue is to transport the water from the roots to the stems and leaves. Other compounds are also transported which are dissolved in the water. Phloem, on the other hand, helps in transporting food from leaves to other parts of the plant.
Darwin would probably say that Rudolph the Red Nosed Reindeer was the first reindeer to have a red
nose as a result of:
Answer:
genetic mutation
Explanation:
the first of any trait is due to some form of mutation, whether it may be in the DNA or chromosomes as a whole.
Which of the following would not be found in a prokaryotic cell?
Answer:
C) mitochondria.
Explanation:
All prokaryotic cells do not have membrane-bound organelles. In the case of mitochondria, however, it has a double membrane. It itself was originally a prokaryotic cell, but it evolved into an organelle.
A: Prokaryotic cells do glycolysis in which a net of 2 ATP's are produced, 2 NADHs are yielded, as well as 2 pyruvate.
B: Ribosomes are not membrane-bound and thus found in prokaryotse.
C: N/A.
D: Cytosol is most definitely found in prokaryotes; it's the jelly-like fluid that surrounds the organelles inside the cells.
E: Yes, prokaryotic cells have plasma membranes.
You prepare an agar plate by spread plating & place an antibiotic disk in the middle of the plate. After incubating for a day at 37 degrees C, there are no bacteria on the plate. Which of the following is NOT a reasonable interpretation of what might have happened?
O The bacteria in the culture tube were already dead when you made the plate
O The medium used was defective and provided no nutrition for the bacteria
O The bacteria grew all over the plate but were then killed by the antibiotic
O The spreading tool was too hot when spreading the bacteria
Answer:
A.The bacteria in the culture tube were already dead when you made the plate
Explanation:
Antibiotics are the chemical substance used to kill or stop the growth of bacteria and some other microorganism.
Antibiotics are added to agar plate during experiment for the selection of only those bacteria with resistance to that antibiotic.
There can be several interpretation for the absence of bacteria such as:
The bacteria grows on the nutrients in the medium but due to defective medium they were unable to grow and die.It may also happen bacteria might have grown in all over the plate but due to the action of antibiotic, all the bacteria got killed.Tool used for spreading might kill bacteria as it was hot and bacteria may not be able to tolerate the excessive heat and die.Hence, the only not reasonable interpretation is bacteria in the culture tube were already dead when you made the plate.
So, the correct option is A.
what opposes the sliding motion of two
surfaces that are in contact.
Answer:
Friction: A force that opposes the motion of objects that touch as they move past each other. Friction acts at the surface where objects are in contact.
Explanation:
The force that acts against your pushing force is called friction. is a force that resists the motion between two surfaces in contact. When you try to slide two surfaces across each other, the force of friction resists the sliding motion.
Describe the microscopic structures you would expect to see in the lungs.
Answer:
Alveoli
Explain:
They are the workhorses of your respiratory system. You have about 480 million alveoli, located at the end of bronchial tubes. When you breathe in, the alveoli expand to take in oxygen. When you breathe out, the alveoli shrink to expel carbon dioxide.
Break down the codeTCCGCGCAGAGCTAG using DNA, mRNA, tRNA, Amino Acid
Answer:
TCCGCGCAGAGCTAG : CODE DNA= A=T G=C
AGGCGCGTCTCGATC : DNA mRNA=A=U C=G
UCCGCGCAGAGCUAG :mRNA
AGG CGC GUC UCG AUC :tRNA
AMINO ACIDS = AGG ---->Arg (R)
CGC ----->Arg (R)
GUC ------>Val (V)
UCG------> Ser (S)
AUC------->IIe (I)
how does blood volume affect blood pressure
Answer:
Changes in blood volume affect arterial pressure by changing cardiac output. An increase in blood volume increases central venous pressure. This increases right atrial pressure, right ventricular end-diastolic pressure and volume.
Explanation:
Anya and Greg are working in their research laboratory. Anya tells Greg that one of the mice has a 50% probability of having the alleles DD and a 50% probability of having the alleles Dd. How can Anya explain her reasoning? In two out of 50 times, the mouse has the alleles DD or Dd. The probability that the mouse has the alleles DD is equal to the probability that it has the alleles Dd. The mouse is twice as likely to have the alleles DD than it is to have the alleles Dd. There are two more possible outcomes besides the mouse having DD or Dd alleles.
Answer:
Option B: The probability that the mouse has the alleles DD is equal to the probability that it has the alleles Dd.
Explanation:
Anya tells Greg that one of the mice has a 50% probability of having the alleles DD and a 50% probability of having the alleles Dd.
She can explain her reasoning by saying that both pairs of alleles (DD and Dd) has equal chance of being expressed i e, the probability that the mouse has the alleles DD is equal to the probability that it has the alleles Dd. Both pairs each has 0.5 chance of occuring.
Answer:
Explanation:
A Dominant Allele is an Allele that express itself.
DD- this represent a dominant homozygous allele
Dd- represent a dominant heterozygous allele
When an individual with DD is crossed with Dd we will have DD,Dd,DD,Dd
Phenotypic ratio is 2:2
i.e homozgous dominant crosses with heterozygous dominant
which means both DD and Dd have 50% chance of occuring in the genotype and the probabality is the same.
Note that in the phenotype of an individual with homozygous dominant (DD) is the same phenotype with heterozygous dominant(Dd)
Which of the following relationships may present harm to one of the organisms involved?
I. Commensalism
II. Parasitism
III. Predation
IV. Mutualism
(A) I and II only
(B) I and IV only
(C) II and III only
(D) III and IV only
Answer:
C
Explanation:
Predator-Prey relationship
Wildfires are _____.
Answer:
C
Explanation:
I think it is C I hope this helps!
Which two conditions does urinalysis screen?
Answer:
Urinalysis is commonly used to diagnose a urinary tract or kidney infection, to evaluate causes of kidney failure, to screen for progression of some chronic conditions such as diabetes mellitus and high blood pressure (hypertension). It also may be used in combination with other tests to diagnose some diseases.
Explanation:
What happens during interphase that allows the two resulting cells to be the same as the
original cell?
Answer:
During mitosis, a eukaryotic cell undergoes a carefully coordinated nuclear division that results in the formation of two genetically identical daughter cells. ... Then, at a critical point during interphase (called the S phase), the cell duplicates its chromosomes and ensures its systems are ready for cell division.
Materials such as minerals, soil, fuels, and clean water are called
O natural resources
bio-elements
O habitats
O non of the above
Answer: natural resources
Explanation:
If all of the red squirrels were diseased and died off what would happen to this food web?
Check all the boxes where the vocabulary word correctly matches its
science definition?
Equilibrium: a system where forces are in balance
O
Climax community: the end of a succession resulting in a stabilized community
o
Succession: the act of winning in life
Primary Succession: colonization of an area that has not been previously occupied by
a community, e.g. newly exposed rock
Pioneer Species: the first organisms to live on rocky surfaces, e.g. lichens, moss,
algae, and fungi
Secondary Succession: colonization following a major disturbance, such as a fire or a
flood
Answer:
Climax community, primary succession, pioneer species, secondary succession.
Explanation:
Equilibrium with regards to succession occurs as "a state of dynamic equilibrium in a community of organisms in which genetic, species and ecosystem diversity remain relatively stable, but this factors are subject to gradual changes through natural succession."
Succession: the process by which the structure of a biological community evolves over time.
What are the five main functions of nematodes in soil?
Answer:
Nematodes are the bacterial feeders, fungal-feeders, plant parasites, predators, and omnivores.
Explanation:
hope this helps :)
Answer:
Nematodes play an important role in nutrient cycling. In particular, they play a key role in the nitrogen cycle. Nematodes take in nitrogen and excrete it in a form that plants and bacteria can use.
Nematodes graze on bacteria, plants, and other soil organisms. In ecosystems, nematodes play a major role in regulating the populations of their prey organisms.
Nematodes carry fungi and bacteria in and on their bodies. As nematodes move through the ecosystem, they disperse the bacteria and fungi.
Nematodes are a part of food chains and food webs. They are an important food source in many ecosystems.
Nematodes impact the health of other organisms. Some help prevent, or suppress, disease by eating other disease-causing organisms. Other nematodes cause disease in plants and animals.
Explanation:
Got 100%
50 point question here answer it please
Answer:
the first one
Explanation:
the partials in a liquid are closer together then a plasma
Answer:
number 1
Explanation:it make since
How does the impact of disease in a stressed reef compare to the impact of disease in a healthy reef?
Answer:
stressed reef will loose photosynthesis and fail to bear fruits compared to a healthy reef that produces bitter fruts
Offspring that are stronger or healthier than their parents are
said to have _____.
please fill in thw question correctly..
no spamming please
will mark u brainliest if ur answer is correct.
thanks to anyone who helps :))
Answer:
Diverse parental genes
Explanation:
At what ages are teeth the most accurate indicators of age of an unknown skelton? Justify your answer with an explanation.
(Forensics)
Answer:
The tibia completes growth at about age 16 or 17 in girls, and 18 or 19 in boys. For toddlers to teenagers up to age 21, teeth are the most accurate age indicators
Explanation:
In tomatoes, round fruit (R) is dominant over long fruit (r), and smooth skin (S) is dominant over fuzzy skin (s). A true-breeding round, smooth tomato (RRSS) was crossed with a true-breeding long, fuzzy tomato (rrss). All the F1 offspring were round and smooth (RsRs). When these F1 plants were bred there were 43 round smooth offspring and 13 long, fuzzy offspring. Are these two genes likely to be on the same chromosome? Explain.
Answer:
Round, smooth: 43
Long, fuzzy: 13
They are not on the same chromosome because when genes are located on different chromosomes they segregate independently.
How do you know if genes are on the same chromosome?We say that a gene is in linkage or gene linkage when it is on the same chromosome and does not segregate independently at the time of the formation of a gamete. We know that chromosomes are formed by a large sequence of genes that is responsible for determining the characteristics of a species.
Whit this information, we can conclude that they are not on the same chromosome because when genes are located on different chromosomes they segregate independently.
Learn more about gene linkage in brainly.com/question/10651162
A region with a variety of organisms like tiger, fish, rabbits, birds, insects, etc.,
have a high level of
genetic diversity
species diversity
ecosystem diversity
none
Answer:
Species diversity is the right answer.
Explanation:
It is stated that the region is full of different organisms. An organism is defined as an individual animal, plant, or single-celled life form. All this variety of a region makes an ecosystem so having multiple ecosystems in a specific region is out of hand.
Which contributes to the movement of air masses
Answer:
The Movement of Air Masses: transporting warm air northward and colder air southward. Counterclockwise winds associated with cyclones transport heat and moisture from lower to higher latitudes and play a significant role in the movement of air masses. A warm front marks the leading edge of this warm, moist air mass.
Explanation:
So far, we have primarily discussed human adaptations independently of one another. In real life, of course, each person has numerous coexisting ancestral adaptations. Ignore what you know of your family history and consider only your physical traits for the following adaptations: skin color, lactose tolerance, and body shape. Based on these three traits, in what part of the world might your ancestors have originated? Do all three of your traits suggest similar ancestry? Be sure to explain your hypothesized determination using evidence related to all three traits, and be sure to think about all the forces of evolution that might impact your unique history (such as gene flow and founder effect).
Answer:
about skin coloration:
Regarding these modifications, we can say that it influences not only the knowledge of evolution but also on the development of strategies for the management of many diseases, so we know that these changes are not produced by a single agent and factors such as Melanin, a substance produced by melanocytes and which gives the tint to each tone, also includes influences such as exposure to sunlight, both in frequency and geographical area from which it is made. Keratin is also found as its own dermal factor. According to this, there has been an adaptation of the phenotype of each individual mainly to the UV environmental factor that can make changes and modify skin tone.
About lactose tolerance:
It is known that historically, after childhood for many people it was very difficult to continue consuming milk, because the enzyme lactase was not found in them and lactose digestion became very difficult, nowadays it is believed that the weather has influenced to improve digestion
About the body shape:
The inherited factors are very important, from the different habitats of our ancestors, which for reasons of hunting, solar exposure, type of food, were being inherited, today it is known that there are 3 main forms of body types including the endomorph, ectomorph and mesomorph, the main advantages depending on where the individual lives will adapt to persist in the next generation, as well as to use new ways of obtaining food can modify it
Learning the rights, obligations, and expectations of a role to prepare for assuming that role in the future. ???
Answer:
Explanation: Anticipatory socialization involves learning the rights, obligations, and expectations of a role to prepare for assuming that particular role in the future
The process of learning the rights, obligations, and expectations of a role to prepare for assuming that role in the future is known as anticipatory socialization.
What is socialization?The term socialization refers to the rigorous process of acquiring the behavior pattern that enables a person to perfectly fit into the society of which he/she is an integral part of.
The term anticipatory socialization refers to the learning of the rights, obligations, and expectations of a role to prepare for assuming that role in the future.
Learn more about socialization: https://brainly.com/question/12881643
When can natural selection lead to evolution in a population?
A. If the environment of the population is stable and provides
resources
B. If the individuals in the population have very little genetic variation
C. If the population has unequal numbers of parents and offspring
D. If the frequency of the alleles for a trait in the population changes
Answer:
D
Explanation:
process of elimination
we'd want limited resources, genetic variation and parent-offspring ratio doesn't matter
Answer:
It’s D
Explanation:
Which of the following explains one of the ways plants and animals depend on each other?
A
Animals make minerals, which plants take in through their roots and pass up to their stems.
B
Animals release water vapor when they breathe, which plants take in through their leaves.
C
Animals make their own food, which plants take in through their roots and pass to their leaves.
D
Animals release carbon dioxide when they breathe, which plants take in to help make food.
Answer:
Animals release carbon dioxide when they breathe which plants take in to help make food
Animals release carbon dioxide when they breathe which plants take in to help make food. So the correct option is D.
Why do animals and plants depend on each other?
All species present on earth depend on each other for performing basic life processes. Humans are not able to survive beyond a particular range of temperature and pressure. For all the species to survive, a healthy environment is required.
Plants and animals are dependent on each other. This is because, in ecological systems, no species can survive alone. Animals are dependent on plants. Plants are the primary producers in our ecosystem. They produce food that is consumed by primary consumers and the primary consumers are consumed by secondary consumers.
Plants use carbon dioxide for photosynthesis and it results in the production of oxygen. This is used by animals for the process of respiration.
Plants depend on animals for several reasons. These can be fruit and seed dispersal, pollination, and also for the carbon dioxide that the animals produce. Thus, both plants and animals are interdependent on each other.
Therefore, the correct option is D.
Read more about plants and animals, here
https://brainly.com/question/5018082
#SPJ6
Use the drop-down menus to complete the statements.
In the first step of meiosis I, .
In the second step, .
In the third step, .
In the final step of meiosis I,
Answer:
In the first step of meiosis I,
✔ DNA condenses to form chromosomes
In the second step,
✔ Each pair of chromosomes lines up in the center of the cell
In the third step,
✔ Pairs of chromosomes separate
In the final step of meiosis I,
✔ A nuclear membrane forms around chromosomes
Explanation:
the person above me is correct
Which the following is not and intertidal area? A. Marsh B. Coral reef C. Rocky Shore D. Estuary
Answer:
B. Coral reef
How much exercise is recommended for children?
A 60 minutes or more of moderate to vigorous exercise every day
B 45-60 minutes of moderate to vigorous exercise every other day
C 10-20 minutes of vigorous exercise every day
D20-30 minutes of moderate to vigorous exercise every day
Answer:
A. 60 minutes or more of moderate to vigorous exercise every day
