Answer:
Chromosomes are pulled apart by the spindle fibers during Anaphase 1
Explanation:
In anaphase I, the attachment of the spindle fibers is complete. The homologous chromosomes are pulled apart and move towards opposite ends of the cell.
explain the mechanism that results in a shoot bending towards light
Answer: Auxin is a plant growth hormone that aids in the regulation of shoot development. However, when the amount of sunshine fluctuates, auxin is broken down on the stem's sunny side. Because the dark side has a larger concentration of auxin, the plant cells on that side develop faster and bend toward the light.
Explanation:
Which of these most likely explains why the bacterial population stopped growing?
Bacterial population needs an optimum environment to survive. The bacterial population stopped growing because bacteria competed for the nutrients and when the nutrients were consumed, they died.
What are the optimum conditions required for bacterial growth?Bacteria require optimum conditions and full of nutrients to survive. It can include the following:
Oxygen.pH.Temperature.Light.Nutrients.Osmotic pressure.Atmospheric pressure.Moisture, etc.Thus, the bacterial population stopped growing as they did not get optimum condition as the nutrients got consumed.
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Where do the instructions used to create proteins originate?
A. the brain
B. the nucleus
C. the mitochondria
Answer:
b) The nucleus
Explanation:
The DNA in the nucleus gives instructions which is used to create proteins. Hence, the option (b) is correct answer.
The instructions used to create proteins originate in the nucleus. Therefore, option B is correct.
What is a nucleus?According to genomics, a cell's membrane-enclosed organelle called a nucleus houses the chromosomes. Three main things are the nuclear envelope, nucleolus, and chromatin body.
The nucleus functions as the cell's control center and genetic information store by containing the genome. Only the final phase of gene expression (translation), which takes place in the cytoplasm, is associated with the cytoplasm. DNA replication, transcription, and RNA processing all occur within the nucleus.
DNA is synthesized in the nucleus, it contains information for the formation of proteins. The instructions used to create proteins originate in the nucleus. Therefore, option B is correct.
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If an organism were to die in an environment that had no saprotrophs or detritivores, what would you expect to see if you observed the area 2 weeks later?
A. There would be nothing left, it will have completely decomposed.
B. The body would remain, and be just as it was when it died except for weathering.
C. There will be no difference as compared to an area that has saprotrophs and detritivores.
D. The body would be decomposing at about half the normal speed.
The body would remain, and be just as it was when it died except for weathering expect to see if you observed the area 2 weeks later. Thus, the correct option is B.
What is detritivores?Detritivores is defined as an organism that feeds on dead and deteriorating organic stuff (such as an earthworm or a fungus).
Decomposers that live on or in dead organic matter secrete enzymes and release nutrients into the ecosystem are known as saprotrophs. Fungi are an example.
The deceased organisms will remain the same without detrivores and saprotrophs, with the exception of weathering, which is taken out by air, water, or other agents.
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Which of these is most likely to result in evolution?
Question 1 options:
A large population of fish loses a few individuals
A plant has two alleles for yellow flower color
One phenotype of moths has better camouflage than the others
A stable, unchanging environment
One phenotype of moths has better camouflage than the others
The energy required for organisms to respond to the environment comes from.
The energy required for organisms to respond to the environment comes from sun.
How do producer organisms obtain energy?The Sun is our star and it represents the most important source of energy for all organisms in a given ecosystem (both consumers and producers).
Producers are organisms at the bottom of the food pyramid that can synthesize biomass by using light energy from the Sun.
In conclusion, the energy required for organisms to respond to the environment primarily comes from the sun.
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Which of these best matches an object in space with its characteristic?
ganymede → orbits the sun
inner planet → gaseous in
composition
outer planet → many moons
Meteorite → comet which hits earths surface
13.04 building muscles explain muscles
Answer:
Muscle is a soft tissue found in both animals and humans. The cells of the muscles comprise protein filaments of actin and myosin that slide past one another, which produces contraction and changes both the length and the shape of the cell.
Muscles function by producing force and motion and are primarily responsible for:
1. Locomotion.
2. Maintaining and changing body posture.
3. Circulation of blood cells throughout the body.
4.Movement of internal organs, such as the contraction of the heart and the movement of food through the digestive system via peristalsis.
There are three types of muscles
•Skeletal or striated muscles
•Cardiac muscles
•Smooth muscles
Based on the muscle action, muscles are further classified into:
•Voluntary muscles
•Involuntary muscles
When studying personality traits, someone who is quiet, reserved, and withdrawn will score low on the ________ trait.
According to the research, someone who is quiet, reserved, and withdrawn will score low on the extroversion trait.
What is the extraversion trait?It is a personality trait that makes it easy for leaders to influence their subordinates.
This trait is characterized by sociability, high energy, and/or talkativeness, that is, they are very communicative and sociable.
Therefore, we can conclude that according to the research, someone who is quiet, reserved, and withdrawn will score low on the extroversion trait.
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Participating in cardiovascular exercise in the target heart rate zone will result in:.
Participating in cardiovascular exercise in the target heart rate zone will result in the reduction of the risk of heart disease, stroke, and diabetes.
What is the target heart rate zone?The target heart rate is typically represented as a percentage of your maximum safe heart rate, typically between 50 and 85 percent.
The highest rate is determined by deducting your age from 220. Therefore, the maximum heart rate for a 50-year-old is 220 minus 50, or 170 beats per minute.
Your ability to complete daily tasks more easily can be increased by increasing your cardiovascular endurance. Additionally, it can lower your risk of developing conditions including diabetes, heart disease, and stroke.
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How does the body obtain more glucose, if it is needed for cell respiration?
Through the process of cellular respiration, the energy in food is changed into energy that can be used by the body's cells. Initially, the sugars in the food you eat are digested into the simple sugar glucose, a . The varying glucose concentration affects the rate of cellular respiration as all living cells require both glucose and oxygen for their proper functioning. If the cell has a low level of glucose, then it cannot produce the energy -ATP molecules.
monosaccharide means any of the class of sugars (e.g., glucose) that cannot be hydrolyzed to give a simpler sugar.
The genetic combination for the trait is the __________ and the physical characteristic that you see is the _________.
Answer:
1. Genotype 2. Phenotype
Explanation:
You select seeds from the largest, tastiest watermelons from your garden every year and use them to grow the next year's fruit. over many years, how would this affect the variability of the watermelon genes?
a.
there would be less variability in the genes of the watermelon plants.
b.
there would only be genes for seedless watermelons.
c.
it would increase variability in the genes of the watermelon plants.
d.
the genes for smaller watermelons would increase.
reset next
There would be less variability in the genes of the watermelon plants and is denoted as option A.
What is Variability?
This is defined as the difference between organisms which is caused by genetic or environmental factors.
Using the seeds from the largest, tastiest watermelons will reduce variability over time because these characteristics will become dominant.
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plase help my and thanks . ammm
From the illustration, it can be said that the age of the rock layer is the same in the four locations of index fossil 1.
Age of fossilIt is a measure of how long a material has been fossilized.
Thus, if a rock layer contains a fossil and another similar rock layer does not have the fossil, one can conclude that the ages of the rock layers are different.
Only index fossil 1 is found in all the four locations as shown in the image. Hence, one can as well infer that the rock layers in all these four locations are of the same age.
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When did the high tide enter the nisqually estuary for the first time in over 100 years?
During the fall of 2009, the high tide entered the nisqually estuary for the first time in over 100 years.
What is Nisqually estuary?
This is formed when the freshwater of the Nisqually River meets the salt water of Puget Sound.
In the fall of 2009, the high tide entered it for the first time in nearly a century.
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The higher the __________ content of a DNA, the ________ the melting temperature, and the ________ the ionic strength, the ________ the melting temperature. A:T; higher; higher; lower G:C; lower; higher; lower G:C; higher; lower; lower A:T; lower; lower; higher G:C; higher; higher; lower
Answer:
G:C, higher, higher,
Explanation:
G:C have 3 Hydrogen Bonds, A:T only 2. So, G:C bind stronger to each other, so higer ionic strengh and higher melting temperature.
*the last gap and the first gap seem to be the same question
(Hello! Could someone help me with this asap? Will mark whoever is first Brainliest.) Nephrons, the functional unit of kidneys, are responsible for formation of urine. The sentences describe situations that are the result of problems in the urine formation process. For the nephron shown below, match each situation to the step in the urine formation process where the problem lies.
The matching of each situation to the step in the urine formation process where the problem lies are as follows:
Step 1: Stella's urine contains protein due to inadequate filtration.Step 2: High toxin levels in the blood are due to Secretion. Step 3: Increased Metabolic wastes are due to inadequate Reabsorption. Step 4: The presence of vital Vitamins in urine is due to inadequate Reabsorption.Thus, Step 1 belongs to filtration, Step 2 belongs to secretion, and Steps 3 and 4 belong to reabsorption.
What is the important function of Nephron?The important function of the nephron may include the removal of all waste products through urine, secretion of numerous substances, excess water from the blood, etc.
Therefore, it is well described above.
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Dr. Grant describes studying how many offspring (babies) the finches have. Another way to say this is he's studying...
SELECT AN ANSWER
homologous traits
selective pressures
fitness
variation
How can water from a small stream on a mountain north carolina affect an estuary that is hundreds of miles away ?
Water from a small stream on a mountain in North Carolina can affect an estuary that is hundreds of miles away so that pollution can accumulate and damage the estuary from the small stream.
What is an estuary and why is it important?The importance of estuaries is very relevant. Estuaries provide food and habitat to a very wide range of living beings with a decisive role in the marine food chain, where we can highlight several species of fish with commercial value.
With this information, we can conclude that water from a small stream on a mountain in North Carolina can affect an estuary that is hundreds of miles away so that pollution can accumulate and damage the estuary from the small stream.
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54:56
The flowchart below shows the three generations of a cross between a pea plant that has yellow pods and a pea plant
that has green pods. Green pods are the dominant trait. The flowchart is missing the labels that describe the traits.
A
D
C
E
In which squares should the phrase "Green pods" appear?
O A and D only
OB and E only
O A, C, and D only
O A, B, C, D, and E
The inheritance pattern of pods color in pea plants is complete dominance. H0m0zyg0us dominant and heter0zyg0us plants have green pods. Option C) A, C, and D.
What is complete dominance?When the dominant allele completely masks the recessive allele, we talk about complete dominance.
This is the case of individuals that are heter0zyg0us for a particular gene and express the dominant trait. The dominant allele is hiding the expression of the recessive allele.
When you cross an individual who is h0m0zyg0us dominant with an individual who is h0m0zyg0us recessive, the whole progeny among the first generation -F1- will express the dominant phenotype since they are heter0zyg0us for this trait.
However, if you let individuals from the F1 cross with each other, the second generation -F2- will be composed of individuals expressing the dominant and the recessive phenotypes. This is because some individuals are h0m0zyg0us recessive and can express the recessive trait.
According to this information, and based on the attached flowchart, we can assume that,
Parentals ⇒ A (gray square) and B (white square)F1 ⇒ C (gray square)F2 ⇒ D (gray square) and E (white square)Since the F1 is completely gray, we can assume this color identifies the dominant phenotype (green pods).
The cross was performed between plants with yellow and green pods, so they must be h0m0zyg0us individuals (dominant and recessive) and the whole F1 must be heter0zyg0us for the trait. So,
A ⇒ h0m0zyg0us dominant because it is gray ⇒ green pods
B ⇒ h0m0zyg0us recessive because it is white ⇒ yellow pods
C ⇒ heter0zyg0us because it is gray and the product of A x B ⇒ green pods
Now, the F2 is composed of D and E which represent plants with yellow and green pods. This means that there are h0m0zyg0us recessive individuals, and the recessive trait -yellow pods- can be expressed again among the second generation.
D ⇒ h0m0zyg0us dominant and heter0zyg0us ⇒ green pods (gray square)
E ⇒ h0m0zyg0us recessive ⇒ yellow pods (white square)
Now, the phrase "Green pods" should appear i all gray squares. These are A, C, and D.
Option C is correct. A, C, and D only.
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Answer:
C) A, C, and D.
Explanation:
HELP ME IM ALMOST DONE
Answer:
option B
should be right answer for the question
Answer: B
Explanation:
ou are a molecule of nitrogen. Choose a starting point in the nitrogen cycle and describe the process you would go through to move through the entire cycle.
The initial point of the nitrogen cycle is fixation which is carried up by the bacteria. Some bacteria perform nitrification that makes the nitrogen usable for the plant species.
What do you mean by the Nitrogen cycle?The nitrogen cycle may be defined as the cyclic passage of nitrogen and its compounds throughout the environment and living organisms like microorganisms, plants, and animals.
The inorganic form of the nitrogen gets assimilated into the roots of the plants that absorb it by vascular tissues.
When this plant is eaten by animals, the nitrogen is transported into its body and synthesizes proteins. After the death of that animal, its excretion, and other waste the nitrogen is again returned to the soil which is then decomposed by bacterial species.
Therefore, it is well described above.
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When a protein denatures, which type of bonding is effected?
Answer:
When a protein is denatured, secondary and tertiary structures are altered but the peptide bonds of the primary structure between the amino acids are left intact. Since all structural levels of the protein determine its function, the protein can no longer perform its function once it has been denatured.A protein becomes denatured when its normal shape gets deformed because some of the hydrogen bonds are broken. Weak hydrogen bonds break when too much heat is applied or when they are exposed to an acid (like citric acid from lemon juice).
which part of the cell membrane does not mix with water
Answer:
FATTY ACIDS
Explanation:
Which statements describe how traits are inherited
Answer: Traits are inherited when the genes from parents are passed off to their offspring.
Explanation:
Which statement about control Ed experiments is correct?
A. Controlled experiments test more than one variable at a time.
B. Controlled experiments do not contain and experimental group.
C. Controlled Experiments are rarely used anymore
D. Controlled Experiments test only one variable
HELPPPP SCIENCEEE!!!!!!!
Answer:
The biodiversity garden are rich in variety of flora which can include native Plant species that provode food and habitat to native pollinator.
How is an
anatomical
adaptation
defined?
A. a system present within the
organism that allows it to perform a
biochemical reaction
B. a feature of the organism's body
that helps it survive and reproduce
C. a response from the organism that
changes it's behavior to help it survive
and reproduce
Anatomical adaptations involve every change in the organism's external structure. Option B. A feature of the organism's body that helps it survive and reproduce.
What is an anatomical adaptation?Anatomical adaptations are changes in the external structure of the organisms that help them survive and reproduce in a certain environment.
These adaptations allow the organisms
to camouflage if necessary (to scape from a predator or to hunt their prey, for instance), to protect themselves by imitating dangerous species' colors and shapes, to develop special structures needed to feed and move in that specific environment.
There are other two types of adaptations apart from anatomical ones. These are physiological and behavioral adaptations.
Options
A. a system present within the organism that allows it to perform a biochemical reaction ⇒ This is a physiological adaptation
B. a feature of the organism's body that helps it survive and reproduce ⇒ This is an anatomical adaptation
C. a response from the organism that changes it's behavior to help it survive and reproduce ⇒ This is a behavioral adaptation
The correct option is B. a feature of the organism's body that helps it survive and reproduce
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When a glacier retreats, it leaves barren rock, no soil or plants. What is this an example of?
Primary succession
Secondary succession
Both
re-introduction
Answer:
a primary succession because it helps to retreats glacier water ..
If you use pyrotechnic visual distress signals, how many unexpired vdss must you carry on board your vessel?.
If you use visual pyrotechnic distress signals, 6 pairs of unexpired vdss must be taken on board your vessel.
How many visual pyrotechnic distress signals to carry on the vessels?In coastal areas, up to 20 miles from the coast, the mandatory set of six flares must consist of two red star manual flares, two red star rockets with parachutes and two floating orange smoke (smoke) flares.
With this information, we can conclude that If you use visual pyrotechnic distress signals, 6 pairs of unexpired vdss must be taken on board your vessel.
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