Answer:
Yes.
Explanation:
Yes, both structural mutations and nondisjunction can play an important role in trisomy 21 which also called down syndrome. In this type of syndrome, extra copy of chromosomes is present in the cell. Down syndrome is a genetic disorder that causes various defects in the children such as learning problems, facial features, vision and hearing problems.
What should an ecologist measure in order to construct a pyramid of biomass for an ecosystem? A. the biomass in each trophic level of the food web B. the total mass of all the organisms in a representative area of the ecosystem C. the total mass of all the organisms in the ecosystem D. the number of organisms in each trophic level of the food web
Answer: When constructing a pyramid of biomass, the ecologist will produce a presentation of B.) the total mass off all the organisms in a representative area of the ecosystem.
Explanation: This type of ecological pyramid is determined by collecting organisms in each trophic level separately and finding their dry weight.
hope that helped! (:
Hi,
An ecologist measures in order to construct a pyramid of biomass for an ecosystem the total mass of all the organisms in a representative area of the ecosystem.
Therefore, Option B is correct.
Hope it helps you...
Answered by Benjemin ☺️
✅
Where does competition for reproduction mostly likely occur
Two models, process A and process B, are shown here as two different potential pathways for viral replication. Evaluate the statements below and select ALL of the statements that are supported by the processes modeled here.
Answer:
the and anwers is b Process A is a lytic cycle that results in the host cell's death, d Both processes involve a viral genome being replicated inside of a host cell and e Process B allows the viral genome to be dormant and reside within the host's genome.
Explanation:
just did the usa test prep
can someone do all this for me? i’ll give you brainliest! it’s the bioman succession lab
In what area of the world does the low pressure area stay in the winter? Why?
Answer:
Atlantic because minuses 0 degrees
What leads to genetic recombination in Archaebacteria?
budding
endospore
conjugation
binary fission
Answer:
Binary Fission I believe.
PLEASE HELP BRAINLIEST..
this is the part of a vasular plant that is typically below ground level and has no leaves or nodes. its major functions are to anchor the plant and absorb water and nutrients
=??
Answer:
roots or rhizoids
Explanation:
roots or rhizoids of the plant anchor the plant and collect nutrients from the soil and send them to the rest of the plant
Fruit flies (Drosophila melanogaster) with a wild-type phenotype have gray bodies and red eyes. Certain mutations can cause changes to these traits. Mutant flies may have a black body and/or cinnabar eyes. To study the genetics of these traits, a researcher crossed a truebreeding wild-typed male fly with a true-breeding female fly with a black body and cinnabar eyes. All of the F1 progeny displayed a wild type phenotype. Which of the following is correct about the traits observed?a. Gray body and cinnabar eyes are dominant.b. Eye color is sex-linked.c. Body color is sex-linked.d. Gray body and red eyes are dominant.
Answer:
d
Explanation:
The correct answer would be that gray body and red eyes are dominant.
The wild type trait is represented by gray bodies and red eyes while the mutant trait is represented by black body and/or cinnabar eyes. A cross between the wild type and the mutant only yield F1 offspring with wild type phenotype. This, thus, means that the wild type trait is dominant while the mutant trait is recessive.
Since the wild type trait is depicted by gray body and red eyes, it means that the gray body and red eyes traits are dominant while the black body and cinnabar eyes are recessive.
The correct option is d.
What might happen if smaller fish had to leave one area of the ocean because the temperature changed?
A. the plants in that area could not survive
B. the small fish would eat the plankton
C. the large animals might lose their food source
D. the ocean waves might change
Answer: C
Explanation: Because the larger animals might starve if they don’t any smaller fishes to feed on unless they also leave the area or change there diet.
Kayla is examining different soil samples and making notes about how well each sample sticks together. She has to soil's that she has classified as dry, ones as wet and one cemented. Which soil property is she examining?
A. Density
B. Structure
C. Texture
D. Consistency
Answer: Consistency, i think
Explanation:
don't come at me if it's wrong please
What are the consequences of not having tall trees in the Great Plains?
Answer:
High evaporation and low rainfall makes it difficult for trees to grow on the Great Plains. Only along the river bottoms can most trees grow successfully in the natural way.
Explanation:
Rosa eats a peanut butter sandwich for lunch. Peanut butter contains a lot of protein, and bread is mostly starch. Rosa plans to go for a run later this afternoon. Rosa is breathing normally.
What does she need from the food she ate and the air she breathes so that she can go on her run? How do Rosa’s body systems work together to get the molecules she needs into her cells? How do her cells use these molecules to release energy for her body to run?
Answer:
........................
What protein plays an important function in the cells shown and would be found in abundance within the cells
Answer:
Hemoglobin
Explanation:
I'm assuming those cells are red blood cells because of the disk-like shape. Hemoglobin is the most abundant protein in red blood cells.
How does energy and matter move through the ecosystem
Answer:
Using the food chain which originates from the sun's energy.
Explanation:
Answer:
matter moves through an ecosystem through the recycling of energy and nutrients between different trophic levels. The first trophic level consists of primary producers like plants that can be manufactured their own food through photosynthesis. Similarly plants are require nutrients like nitrogen to grow.
Explanation:
Image result for How does energy and matter move through the ecosystem
In ecosystems, matter and energy are transferred from one form to another. ... Decomposers break down dead plant and animal matter. Producers (plants) use sunlight and other nutrients to make their own food through photosynthesis. Consumers are the animals that consume, or eat, other living things.
The location for the SI gene is 3q26.1. What does this information tell you?
The SI gene provides instructions for producing the enzyme sucrase-isomaltase
Annotation 3q26.1. indicates a specific localization of a gene on chromosome number 3.
The localization of a gene in a chromosome is indicated by a specific pattern of bands generated by different cytogenetic staining techniques.The first number/letter used in this code indicates the chromosome (in this case, 3 indicates chromosome number 3).The letter q represents the long arm of the chromosome, whereas the shorter arm is referred to as p (in this case, 3q)The following numbers represent the position of the gene on the chromosome arm, which is evidenced by specific patterns and staining techniques.In conclusion, annotation 3q26.1. indicates a specific localization of a gene on a chromosome.
Learn more in:
https://brainly.com/question/1181608?referrer=searchResults
What is a lightyear?
A: It is the distance that light can travel in one year.
B: The distance between the Earth and the Sun
C: Distance between the Earth and the Moon
D: None of the above
Answer:
A) It is the distance that light can travel in one year
Explanation:
A lightyear is a measure of distance used for all light in space.
Answer:
A
Explanation:
note that a light year is a distance, not a time
Meiosis consists of _________ division(s) of the nucleus.
a. one
b. two
c. three
d. four
Answer:
the answer is two for this question
What are the monomers of Lipids?
A. Monosacharides
B. Nucleic Acids
C. Amino Acids
D. Fatty Acids
Answer:
D- fatty acids
Explanation:
Answer:
Amino acids - C
Yall please help quickly!! This would mean alot (: I hope you have a good day and a great year!!
Why does heart failure result in death within a couple minutes? Choose the BEST option.
Question options:
When your heart fails, you are not able to bring oxygen into the lungs.
When your heart fails, you are not able to send electrical signals throughout the body
When your heart fails, tissues and organs do not get the oxygen they need
When your heart fails, your body gets too cold and dies
Answer: Please don't get mad at me if this is wrong, just trying to help ;)
Explanation: I believe it's C.
Help please asap I would appreciate it
Which describes what happens when cooler
air particles come into contact with the
warmer ground?
A) The particles do not interact.
B Energy is transferred from the cooler
air to the warmer ground.
©
Energy is transferred from the warmer
ground to the cooler air.
The particles'move back and forth
between the air and the ground.
D
Answer:
B. Energy is transferred from the cooler air to the warmer ground.
Explanation:
When cooler air particles come into contact with the warmer ground, energy is transferred from the cooler
air to the warmer ground.
Answer: The temperature of air would decrease.
Explanation:
The energy gets transferred from hot object to cold object until the two objects are in thermal equilibrium. When air transfers energy to a cooler object, it means the air it self is cooling down till the air and the object are in thermal equilibrium. Thus, the temperature of air would decrease.
Need some quick help with this:
Answer:
option A : green plants
Explanation:
green plants will be at the base of the trophic level pyramid as they are the producers .
plz mark my answer as brainlist plzzzz.
hope this will be helpful to you.
Answer:
the answer is green plants
Explanation:
catipillers are the ones who eat the plants birds eat the catipillers snakes eat the birds
PLEASE HELP DONT STEAL POINTS 4TH TIME PUTTING THIS UP
Answer:
wait what? I'm confused. I think you should add more pictures of what you've been going over. This doesn't give enough context.
Explanation:
2. AA-unaffected carrier
3. aa-affected
4. aa-affected
5. Aa-unaffected
6. Aa-unaffected carrier
7. aa-affected
8. aa-affected
9 Aa-unaffected
10. aa-affected
11. Aa-unaffected
Dominant or recessive? Well the affected is recessive but I’m only saying dominant because usually A takes over a recessive.
6th grade science
Rock transformation lesson 3.3
Preparing to Model Rock Transformations
There are seven possible processes. How many processes do you think your rock material will go through?
A. All of them. (Any rock material can transform into any other rock material.)
B. Only one. (Each rock material can only be transformed once.)
C. Some of them. (Each type of rock material can only go through certain processes.)
D. Some of them. (Rock material can transform in any way, but my rock might not go through all of the processes.)
Answer:
A .All of them .( Any rock material can transform inTo any other rock.material)
Answer: A
Explanation: A. All of them. (Any rock material can transform into any other rock material.)B. Only one. (Each rock material can only be transformed once.)C. Some of them. (Each type of rock material can only go through certain processes.)D. Some of them. (Rock material can transform in any way, but my rock might not go through all of the processes.)
4
In this paragraph, does the word "once" help show a cause-and-effect
relationship? Support your answer with evidence from the text.
Skeletal support in sponges may be provided by a. spicules of calcium carbonate. c. spongin fibers. b. spicules of silica. d. All of the above
Two organisms within the same family can be organized into several related
orders
kingdoms
phylum
genus
Answer:
Phylum and Kingdoms
Hopefully this is right.
Two populations of birds with somewhat different coloration live on two different islands. When birds from the two populations are brought together, they produce young whose appearance is intermediate between the two parents. These offspring can successfully breed with each other or with birds from either parent population, and all offspring of these pairings appear intermediate to various degrees. According to the biological species concept, the two populations on different islands ___.
Answer:
represent a single species
Explanation:
According to the biological species concept, a species can be defined as a group of organisms that can potentially interbreed (i.e., mate) in order to produce viable and fertile offspring. Based on this concept, the cohesion forces that maintain the integrity of the species as a single group are 1-interbreeding between its members and 2-reproductive isolation mechanisms that prevent successful mating between organisms from different species. In this case, both bird populations represent the same species because when individuals of these populations are brought together they can interbreed to produce viable and fertile offspring.
Mike and Mack are identical twins. Which statement might explain why Mike developed lung disease and Mack did not?
Answer:
mike could have smokeed and mack could have done alot of atheletic stuff they also could have been born with differneent genes
Explanation:
The following can be very useful to plants in nitrogen cycle except ______________
a)nitrifying bacteria
b)denetrifying bacteria
c)lightening
d) nitrogen fixing bacteria