Answer:
Eukaryotes
Explanation:
are organisms whose cells contain a nucleus and other membrane-bound organelles.
Freshwater leeches attach to fish and suck blood from the fish for extended periods of time. This results in sores on the fish that often become infected.
what is This relationship is best described as i will mark brainliest if less than 10 min im in junior high
.
Answer:
Parasitism
Explanation:
This type of relationship involves one organism living with, on, or inside another organism and harming it. This relationship involves:
Host - the one being harmed in parasitism in this case the fish.
Parasite - the organism (the one doing the harm) that benefits in parasitsm in this case the leech.
Which is more closely related to the jaguar, the lion or the tiger. how do you know?
What is a zygote and how is it formed
Answer:
A zygote is a fertilized ovum. The germ cells undergo meiosis to reach a haploid state (n) as part of spermatogenesis and oogenesis. The sperm and the unfertilized ovum reinstates a chromosome set in zygote in a diploid state (2n).
After fusing with the sperm, the second stage of meiosis takes place for separation of chromatids. Post-fertilization, mitosis of the zygote is initiated which develops into a mature offspring exhibiting characteristics of its parent.
Explanation:
The zygote stage development occurs in the first week of fertilization. The genome of the zygote is the combination of DNA in each gamete and contains all the genetic information required to form an individual.
Answer:
Zygote is a diploid cell resulting from the fusion of two haploid gametes
it forms when a sperm penetrates the outer surface of an egg.
What is a mutation? a a misinterpretation of the daughter strand b a break down of the mRNA structures in the cell c any change in the nucleotide sequence d a function of the ribosome
Mutation can be defined as any change in the nucleotide sequence. That is option C.
What is nucleotide sequence?Nucleotide sequence can be defined as the sequence of bases that are arranged in a particular form which contains instructions for the synthesis of proteins in a cell.
When there is a change in this sequence, mutation is said to have occurred.
Therefore, Mutation can be defined as any change in the nucleotide sequence.
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You see a beautiful yellow flower while walking through a meadow. Your eyes seeing the flower is a matter of ______. Your brain determining that the flower is yellow is a matter of ______.
Answer:
Sensation, perception
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You see a beautiful yellow flower while walking through a meadow. Your eyes seeing the flower is a matter of sensation. Your brain determining that the flower is yellow is a matter of perception.
Where would a region of nonpolar amino acids be in a folded protein?
in the secondary structure within the ß pleated sheet
in the secondary structure within the a helix
in the tertiary structure within the core of the protein
in the tertiary structure as part of side chains linked by hydrogen bonds
Answer:
third option should be correct
Explanation:
PLS Help ASAP due today :'''(
Drag each label to the correct location on the diagram.
Label the parts of the brain.
pons
brain stem
thalamus
midbrain
cerebrum
hypothalamus
medulla
oblongata
cerebellum
right side
1
2
3
4
left side
5
6
7
8
Answer:
right side
1 thalamus
2oblongata
3 cerebellum
4 brain stem
left side
5 cerebrum
6 hypothalamus
7 pons
8 medulla
Explanation:
Which statements is true about organ systems in the human body?
Choose 1 answer:
(A) if one organ system fails, a different organ system can take its place.
(B) all organ systems carry out the same functions in the human body.
(C) organ systems interact to allow the body to live and grow.
Answer:
That is depend upon the proper function of the body
Hope it will help you to understand and help you to choose your answer yourself Thankyou
Which of the following is an example of a free-range farm?
chicken coop
cattle ranch with pasture
puppy mill with cages
hog farm with pens
Explain two main concerns of using gmo in agriculture
total saturation of protein transporters for a given solute in the renal tubules would result in __________.
Answer:
absence of that solute from the urine
Explanation:
A protein transporter is involved in the transportation of the ions and the molecules. If a membrane protein transporter gets totally saturated in the renal tubules, then that solute will appear in the urine.
What are transport proteins?Transport proteins are the transporters that move the molecules, ions, and macromolecules in and out of the cell. They carry the molecules and substances across the biological membrane and allow their diffusion.
If a transport protein saturates a solute totally in the renal tubules, then that solute will get secreted in the urine as they are easily soluble in the water and the fluid of the excretion system.
Therefore, the solute will get excreted in the urine.
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Which is the answer a b or c.
it's option A
hope it helps...!!!
an apple falls out of a tree if gravity is the action force that is acting on it what would the reaction force be?
A) momentum
B) air resistance
C) thermal velocity
D) anti-gravity
Answer:
B) Air Resistance
Explanation:
A reaction force is the opposite of an action force, so what is opposing gravity? Momentum certainly isn't in this instance of the apple falling. Thermal velocity isn't, and anti gravity is a hypothetical phenomenon.
Answer:
B) air resistance
Explanation:
When an falls out of a tree, gravity is acting downwards, and the reaction force which counters it is air resistance.
Explain why the radiolabel was present in the homogenate. Describe the role of light in the synthesis of ATP and NADPH and how the absence of light may have affected this process
During photosynthesis, light excites electrons in the photosystems and it is used to generate ATP and NADPH.
What is photosynthesis?Photosynthesis is a series of chemical reactions used by plants to generate carbohydrates by means of light energy (solar radiation).
During this process, light excites electrons in the photocenters and this energy can be converted to chemical energy via ATP and NADPH production.
In conclusion, during photosynthesis, light excites electrons in the photosystems and it is used to generate ATP and NADPH.
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What to expect after laser surgery for retinal tear?
Answer:
You may have some pain in your eye and your vision may be blurry for a few days after the surgery. Your eye may be swollen, red, or tender for several weeks.
Explanation:
Sulfates are considered secondary pollutants because.
Sulfates are considered secondary pollutants because they result from the transformation of primary pollutants.
Reason: Primary pollutants are pollutants emitted directly into the environment while secondary pollutants are emitted after they are formed in the atmosphere.
Hope that helps!
Which of the following does NOT
cause the urban heat island
effect?
A. impervious surfaces
B. air conditioning units
C. fuel combustion
D. lots of vegetation
Answer:
D. Lots of vegetation
Explanation:
Urban heat islands form when cities replace natural land cover with dense concentrations of heat-absorbing pavement, buildings, and other surfaces. This has the impact of raising energy prices (for example, air conditioning), air pollution levels, and heat-related sickness and mortality.
Explanation:
it's d lots of vegetarian
2. What are three characteristics of carbon that contribute to the diversity of organic compounds?
Catenation:
The property of self linkage among identical atoms to form long chain compounds is known as catenation. Carbon exhibits maximum catenation, when compared to elements like sulphur and silicon, due to strong carbon-carbon bonds and tetra valency. Due to this catenation, carbon atoms can form various types of straight chains, branched chains and ring structures.
Formation of multiple bonds:
Carbon atoms are capable of forming multiple bonds with other carbon atoms.
Hydrocarbons:
All the carbon compounds which contain just carbon and hydrogen are called hydrocarbons.
isomerism arises from the difference in the structure of carbon chain which forms the nucleus of the molecule. It is, therefore, named as chain, nuclear isomerism or Skeletal isomerism. For example, there are known three pentanes which have the same molecular formula.
which organelle is responsible for cellular respiration?
Answer:
The mitochondria
Explanation:
The “powerhouses” of the cell, mitochondria are oval-shaped organelles found in most eukaryotic cells.
Answer:Mitochondria
Explanation: Allow me to explain in a short way, They are oval shape organelles that serve to transform molecules into an energy molecule called adenosine triphosphate.
Why must cytosine bind to guanine, while thymine bonds to adenine?
a
These are Chargaff's rules.
b
Like bonds with like.
c
Two-ring molecules (adenine and guanine) must bind with one-ring molecules (thymine and guanine) to keep the distance between DNA chains consistent.
d
This will not happen, as it violates Chargaff's rules.
These are Chargaff's rules that is why cytosine bind to guanine, while thymine bonds to adenine. Thus, the correct option is A.
What is Chargaff's rule?According to the rule, in DNA there is always equality in quantity between the bases A and T and between the bases G and C. (A is adenine, T is thymine, G is guanine, and C is cytosine).
According to Chargaff's rule, Concentration of adenine = concentration of thymine. therefore if [A]=40% then the [T] will also be 40%.
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How does the loss of leaves help a plant survive winter or long periods without rain?
Answer:
because It loses leaves so that it can keep all of the nutrients and water to the ruts and steam
Explanation:
It can always grow more leaves
Which mechanism of gene expression regulation is the fastest but most energy demanding of the cell?.
Answer:
Post-translational control.
Explanation:
Because this mode involves modification of an already synthesized protein, it is the fastest in terms of regulating the activity of the gene product.
Which type of data would be categorized as quantitative?A.A survey of opinions about a politicianB.A newspaper article calling for changes to a local lawC.A database of test scores for a group of studentsD.A collection of essays describing life in a small town
Answer:
C.A database of test scores for a group of students
Explanation:
Quantitative data measures things and records values as numerical data. Only option C that measures test scores records values as numerical data.
Rest are qualitative.
Distinguish how an animal welfare activist would most likely feel about the animals’ housing and training in the following scenario.
A traveling circus uses a number of animals in its act, including a tiger and a small herd of elephants. When traveling, the tiger gets its own car and attendants who feed it regularly. The elephants are dispersed among three cars and each has a number of attendants who feed and clean up the elephants’ waste. To train the animals, the circus hires animal trainers who use whips to teach the animals how to behave in the ring.
Answer:
using whips on animals is not a desirable activity, as well as circus' being notorious for the mistreatment of animals, I think anybody who had these animals welfare in mind would disapprove of this scenario
Explanation: my Best guess with the contect given
Which of the following statements is NOT one of the principle observations upon which Darwin based his theory of natural selection?
a. The population size of a species would increase exponentially if all individuals that were born reproduced successfully
b. Populations tend to remain stable in size, aside from seasonal fluctuations
c. Environmental resources are limited
d. Individuals in a population vary extensively in their characteristics
e. Most of the variation observed among individuals in a population is due to environmental causes; thus, very little variation is heritable (passed on from parent to offspring)
b. Write a simple word equation to show how NPP is derived from GPP :
The net primary productivity (NPP) and the gross primary productivity (GPP) are related such that: NPP = GPP - Respiration
What is NPP?NPP refers to the net primary productivity of ecosystems. It is the amount of sugar made from photosynthesis when the amount of sugar burned during respiration has been deducted.
The total amount of sugar made during photosynthesis is the Gross Primary Productivity (GPP). This amount does not include the amount of sugar burned by respiration.
Thus, the equation relating the 3 variables would be:
NPP = GPP - Respiration
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how does diffusion helps in absorption of minerals by roots????
Answer:
The soil water enters from the higher concentration to the lower concentration by the process of diffusion.
If the membrane was completely permeable,the concentration inside the cell would be about the same as the outside. Give reason?
If the cell membrane is permeable to some solute, this means the solute is free to move in or out of the cell, depending on its concentration gradient. The solute will move by diffusion from the area with high concentration to the area with low concentration. So if the concentration of this solute is higher outside of the cell compared to the inside, then it will move into the cell until its concentration is equal on both sides.
20 POINTS!!
Which part of the eye contracts in bright light and expands in dim light?
retina
cornea
lens
iris
Answer:iris
hope this helps
Answer:Iris
Explanation:
Just took the test
Which combinations of traits would be possible in future generations if the genes for fur color and eye color assort independently? Select all possibilities.
Answer:
the answer would be black fur, black eyes and white fur , red eyes
Explanation:
