Answer:
Biological membranes consist of a double sheet (known as a bilayer) of lipid molecules. This structure is generally referred to as the phospholipid bilayer. In addition to the various types of lipids that occur in biological membranes, membrane proteins and sugars are also key components of the structure.
Explanation:
Describe the behavior of the chromosomes in then second division of meiosis.
Answer:
The typical behavior of chromosomes in meiosis is that homologous pairs synapse, recombine, and then separate at anaphase I. At anaphase II, sister chromatids separate. However, studies of small chromosomes in maize derived from a variety of sources typically have failure of sister chromatid cohesion at anaphase I. This failure occurs whether there is pairing of two copies of a minichromosome or not. These characteristics have implications for managing the transmission of the first generation artificial chromosomes in plants. Procedures to address these issues of minichromosomes are discussed.
Normal chromosomes enter into meiosis following DNA replication. The homologous pairs find each other in the process of synapsis. Recombination exchanges parts of the homologs involving two of the four chromatids present. Then in anaphase I, each member of the pair segregates to opposite poles and into the two cells resulting from meiosis I. In contrast to mitosis, the sister chromatids of each homolog remain attached to each other. At meiosis II the sisters now separate to opposite poles. The consequence of this sequence of events is that segregation of genetic markers on the two members of the pairs of homologs enter into different gametes that will eventually be formed after meiosis. However, small chromosomes as observed in maize do not follow these rules. In this review, we describe the information known about these minichromosomes and what they inform us about meiotic processes. Also, the behavior of small chromosomes impacts how engineered minichromosomes will behave and so information about them is important for practical applications as well.
repurting of an artery is dangerous,why?
True or False: The pulmonary circuit allows deoxygenated blood to become oxygenated.
Answer:
true
Explanation:
trust me bro ya know whole lotta quick mafs
Which of the following statements best summarizes the factors that affect population growth?
A. When resources are available, populations grow until they reach carrying capacity.
B. The more limiting factors affect a population, the greater the population growth.
C. The carrying capacity will decrease when there are no limiting factors affecting the population.
Answer:
A
Explanation:
Before we try to answer the question lets define a few key terms
Key Terms:
Carrying capacity - The max population that can be sustained by the amount of resources in a specific environment
Limited factor are usually expressed as a lack of a particular resource.
Now lets look back at the answer choices
For A,
A. When resources are available, populations grow until they reach carrying capacity.
This statement makes sense because with available resources, a population will continue to increase until the amount of resources isn't enough for the population, in other words the population will increase until its reached its carrying capacity. So this might be the answer, however lets look at the other answer choices just in case.
For b,
B. The more limiting factors affect a population, the greater the population growth.
This statement would not be true because limiting factors usually are expressed as a lack of a particular resources. A lack of resources ( more limiting factors ) would lead to a population decreasing, not increasing, therefore B is not a true statement
For C,
C. The carrying capacity will decrease when there are no limiting factors affecting the population.
This statement would not be true because if there are no limiting factors ( which remember are expressed as a lack of particular resource ) the carrying capacity ( or the max population that can be sustained by the amount of resources in a specific environment ) would not change at all because there are no limiting factors changing the availability of the resources, therefore C is not the answer.
What type of spatial distribution do the wolves illustrate?
Answer:
Could you please attach an image of the document so I can better assist you?
Explanation:
Have a great day, and spread some positivity!
Remaining Time: 59 minutes, 12 seconds.
Question Completion Status:
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Question 4
Newly synthesized proteins destined to be secreted from the cell are likely to be found in all of the following places EXCEPT:
The lumen of the ER
The lumen of the Golgi
The lumen of the lysosome
The lumen of the SER
Moving to the next question prevents changes to this answer.
Newly synthesized proteins destined to be secreted from the cell are likely to be found in all the options except the lysosome.
Both the endoplasmic reticulum and Golgi apparatus are involved in protein processing and transport.
However, the lysosome is an organelle responsible for digesting or degrading excreted biomolecules as well as dead organelles. The lysosome is spherical and most contain digestive enzymes capable of degrading biomolecules in its lumen. Thus, a protein destined to be secreted from the cell will most likely not be found in the lysosome, otherwise, the protease enzyme present in its lumen would degrade them.
More on the lysosome can be found here: https://brainly.com/question/1945886
While jogging, energy transformations occur in the body.
Which flowchart best describes the energy transformation that happens while
jogging?
A. Potential energy chemical energy
B. Electrical energy potential energy
C. Chemical energy — kinetic energy and thermal energy
D. Kinetic energy thermal energy and electromagnetic energy
Answer: Well according to me, the answer is ,
C. Chemical energy — kinetic energy and thermal energy
Explanation: I am not saying that it is a 100% right but according to me thats what is should be.
Hope you found what you're looking for. Have a nice day.
Answer:
chemical energy kinetic energy and thermal energy
Explanation:
took the test it's correct
Write the complementary strand to this DNA molecule on the line.
G А Т
ССА TG A G TT A CG
Answer:
If you mean the complementary strand of GAT: Answer is CTA
If you mean the strand for all of it (GATCCATGAGTTACG): Answer is CTAGGTACTCAATGC
Explanation:
Both strands always have to be in a sequence that pairs them to their nitrogenous base pair according to Chargaff's law. So always remember:
A pairs with T (Adenine with Thymine)
C pairs with G (Cytosine with Guanine)
Whenever you need to figure out the other strand, just switch the original base sequence with their base pairs to get the second strand/sequence.
Hope this helps you for future questions. Have a good day, love <3
Temperatures on Mars reach as high as 20 °C and fall as low as –140 °C. That temperature is colder than anyplace on Earth. Temperatures on Earth vary, but they stay within a range of –89 °C to 58 °C. Based on this evidence, which physical property is responsible for the greater range of temperatures on Mars as compared to those on Earth?
A. mass
B. axial tilt
C. thin atmosphere
D. period of revolution
Answer:
c
Explanation:
thin atmosphere
an animal, that has gained new genetic information from the acquisition of foreign dna, is called a
Answer: Chimera
Explanation:
A genetic chimerism or chimera is a single organism composed of cells with more than one distinct genotype
Help me with this last thing for my environmental science class
Answer:
1. Energy is passed between organisms through the food chain. Food chains start with producers. They are eaten by primary consumers which are in turn eaten by secondary consumers and them by other consumers.
2. Producers are living things that use energy to make food. Producers make food for themselves and other living things.
3. the difference between a herbivore and an omnivore is a herbivore eats only plants or producers, and an omnivore eats both plants, and other animals/consumers.
4.A food chain follows one path of energy and materials between species. A food web is more complex and is a whole system of connected food chains. In a food web, organisms are placed into different trophic levels.
Explanation:
i hope this helps-even if it is a bit late...
What properties of photosynthetic pigments allow pigments to absorb light of only certain wavelengths? Select all that apply.
Light of any energy level can boost an electron of the pigment molecule to a higher energy level in order to be absorbed.
Only light with the correct wavelength to boost an electron of the pigment to a higher energy level is absorbed.
Some pigment molecules lack a light-trapping region.
All pigment molecules possess a light-trapping region with a special structure that allows electrons to move freely
between Its atoms.
The properties of photosynthetic pigments that allow pigments to absorb light of only certain wavelength is ; ( B and D )
Only light with the correct wavelength to boost an electron of the pigment to a higher energy level is absorbed.All pigment molecules possess a light-trapping region with a special structure that allows electrons to move freely between Its atoms.The Green pigment found in plants ( i.e. photosynthetic pigment ) that absorb light energy used by plants during photosynthesis is the chlorophyll. It absorbs light energy based on the wavelength of the visible light while reflecting visible green light due to its wavelength.
The reflection of the visible green light by the chlorophyll gives the plants leaves the green color it possesses.
Hence we can conclude that The property of photosynthetic pigments that allow pigments to absorb light of only certain wavelength is ; Only light with the correct wavelength to boost an electron of the pigment to a higher energy level is absorbed. and statement D.
Learn more : https://brainly.com/question/24234175
true or false? the endosperm in a seed develops into the embryo.
Answer:
the answer if false
Explanation:
the endosperm in a supply for the embryo
The size of the cell is related to its function True/false
TRUE
EXPLANATION:BECAUSE THE SIZE OF THE CELL IS RELATED TO ITS FUNCTION.
HOPE IT HELPS YOU
CAN YOU BRAINLEST ME
Answer:
For example, the nerve cells are elongated in shape and are thin and dainty. ... An animal cell does not have a cell wall
Explanation:
The size and shape of a cell are related to its function and are governed by four factors—(1) surface-volume ratio, (2) nucleocytoplasmic ratio, (3) rate of cellular activity, (4) cell associations. (1) Surface-volume Ratio: ADVERTISEMENTS: The cell membrane separates the inner content from the outer environment.
____________
When an enzymes breaks down or change shape
Answer:
An enzyme’s shape is tied to its function. Heat, disease, or harsh chemical conditions can damage enzymes and change their shape. When this happens, an enzyme doesn’t work anymore. This affects the body processes the enzyme helped support.
Explanation:
Hope this helps :)
True or false? All genetically modified foods are 100% guaranteed safe.
Answer:
no
Explanation:
being 100% sure is technically impossible, so it might be 100% safe for a month, but after that is unknown
Academic Unit 3 test
When the concentration of molecules on both sides of a membrane is the SAME, the solution
O hypotonic solution
O cytotonic solution
O isotonic solution
hypertonic solution
Explanation:
The prefix iso- means same or equal.
When the concentration of molecules is equal on both sides of the membrane then is an ISOTONIC solution.
Clear-winged dragonflies live longer and can reproduce
many more times than yellow-winged dragonflies.
How is this population of dragonflies most likely to change as a result of this
difference?
O A. Dragonflies with yellow wings will evolve into ones with clear
wings
O B. Clear-winged dragonflies will become more common over time.
O C. The number of dragonflies will shrink until they become extinct.
O D. Yellow-winged dragonflies will become more common over time.
Which of the following statements are NOT true of micronutrients? a) They help regulate body processes.
b) They provide energy.
c) They help in the growth and maintenance of the body.
d) They are required in small amounts
Answer:
C
Explanation:
its easy
b)They provide energy statements are NOT true of micro nutrients
Do micronutrients control bodily functions?
Every single micronutrient is crucial for the health of your body's systems. Getting enough of the various vitamins and minerals is essential for good health and could even aid in the prevention of disease.
This is due to the fact that micronutrients are involved in almost every bodily process.
One of the most important vitamin categories that your body need are micronutrients. They contain minerals and vitamins. The creation of energy, immune system health, blood coagulation, and other processes all depend on vitamins.
In the meanwhile, minerals are crucial for a number of functions, including growth, bone health, fluid balance, and others.
to learn more about micronutrients refer to:
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Nitrogen is used for the synthesis of plant proteins and other compounds True / False
Answer:
True
Explanation:
Its true because nitrogen is required for production of chlorophyll, nucleic acids, and enzymes. Nitrogen is essential for plants to synthesize amino acids, which are the building blocks for protein synthesis.
most of the photosynthesis in lakes and ponds occurs in the:
Answer:
its occurs in the Littoral zone
Explanation:
Organelle s is most likely the ___________________.
smooth endoplasmic reticulum
rough endoplasmic reticulum
golgi apparatus
centrioles
Answer:
Answer is smooth endoplasmic reticulum
Explanation:
If you like my answer than please mark me brainliest thanks
what is the modification of plant?why are different parts of plants modified? write
please help:(
Answer:
what is the modifications of plants?ans -In some plants, the roots change their shape and get modified to absorb and transport water and minerals from the soil to different parts of the plant. They are also modified for support, food storage, and respiration. The root modifications perform two major functions- Physiological and Mechanical.
Cell Division: Parts of Nephron
Leaf Structure: Genotype Meaning
2.why are different parts of plants modified?
ans-Certain parts of a plant undergo modification in order to adapt to their surroundings and environmental conditions. These modifications help them in their survival against odds. For example, the leaves in a cactus plant are modified to spines to reduce the surface area and hence water loss by evaporation.
PLEASE HELP! - Molecules of a-ketoglutaric acid and ____ are made of all the same elements.
____ is made up of a-ketoglutaric acid and two ____ molecules.
Answer choices for all blanks: ammino, glucose, or glutamine
Answer:
First Ammino
Second Glutamine
Third Glucose
Explanation:
I had to do MAD research on this and it felt as if my head was going to bust.
please choose the answer that best fills in the blanks of this sentence in the correct order. gram-________ cells stain purple whereas gram-_______ cells stain pink or red when using the gram stain technique.
Gram-negative cells stain purple whereas, Gram-positive cells stain pink or red when using the Gram stain technique,
Gram-positive bacteria cells are able to retain the color of crystal violet dye due to the presence of thick peptidoglycan in their cell walls.
Gram-negative bacteria cells are not able to retain the color of crystal violet dye in their cell walls due to the thinness of the cell wall. Hence, they could not retain the color of the primary stain. Instead, they are counter-stained by safranin.
More on the Gram staining technique can be found here: https://brainly.com/question/14292806
What is the best definition of direct cause of disease?
A. a cause that directly leads to an abnormal condition without interference
B. a cause that eventually leads to an normal condition without interference
C. a cause that indirectly leads to an abnormal condition with interference
D. a cause that directly leads to a normal condition without interference
Answer:
D. a cause that directly leads to a normal condition without interference
Explanation:
Direct contact infections spread when disease-causing microorganisms pass from the infected person to the healthy person via direct physical contact with blood or body fluids.
what happens when the epiphyseal plate is ossified
Answer:
Bones grow in length at the epiphyseal plate by a process that is similar to endochondral ossification. When cartilage growth ceases, usually in the early twenties, the epiphyseal plate completely ossifies so that only a thin epiphyseal line remains and the bones can no longer grown in length.
If a runner ran 100m in 10s, what is the runners average speed?
I think it involves one of Newton’s laws.
Answer:
either 10 metera in one second or .1 m per second s
Explanation:
it ia just math so dividing
how did you get this answer i don't get it
What question?- there's nothing there
How are Zinc and Sodium alike
Answer:
they both are solid at room temperture
Explanation:
Zinc: Is Solid at room temperature
Zinc: Is a toxic heavy metal
Sodium: Is solid at room temperature
Sodium: Is a toxic heavy metal
Hope this helps! :)
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