Which of these cell parts serves the same function in plants as the skeleton does in animals?
A. Cell walls
B. Vacuoles
C. Chloroplasts
D. Mitochondria
Answer: i think it is B
Explanation:
7. Which nutrient forms part of the cell membrane?
O fat
O vitamins
O carbohydrate
O protein
Cows and mice have the same amino acid sequence for topoisomerase I, an enzymatic protein involved in unwinding the DNA double helix. The fact that these two different species have this identical amino acid sequence provides evidence that -
Answer:
They share a common ancestor
Explanation:
Due to having the same Amino acid sequence for Topoisomerase I, it can be inferred that during their evolutionary development, cows and mice had a common ancestor with that same amino acid sequence for Topoisomerase I.
Which statement best describes the position of the Sun at sunrise and sunset as seen by an observer in New York State on December 21? A. The Sun rises north of due east and sets north of due west. B. The Sun rises south of due east and sets south of due west. C. The Sun rises north of due east and sets south of due west. D. The Sun rises south of due east and sets north of due west.
Answer:
c
Explanation:
The statement best describes the position of the Sun at sunrise and sunset as seen by an observer in New York State on December 21 is the Sun rises south of due east and sets north of due west. Thus, option D is correct.
What is Northern Hemisphere?On June 21st we have the summer solstice in the Northern Hemisphere. This is the longest day of the year in the Northern Hemisphere and officially it marks the beginning of the summer. On this date, the sun gets the furthest north during sunset and sunrise on the Northern Hemisphere.
This is the case because that is when the Northern Hemisphere is the most tilted and exposed to the sunlight. Basically, the further north the Sun appears on the sky in the Northern Hemisphere, the more sunlight there will be and the higher the temperatures will be as well.
The Sun rises north of due east and sets north of due west.The Sun rises south of due east and sets south of due west.The Sun rises north of due east and sets south of due west.
Therefore, The statement best describes the position of the Sun at sunrise and sunset as seen by an observer in New York State on December 21 is the Sun rises south of due east and sets north of due west. Thus, option D is correct.
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what is a mutation that changes the codon to another codon specifying the same
amino acid, thus causing no change to the resulting protein?
A. Silent mutation
B. Insertion
C. Frameshift mutation
D. Deletion
Answer:
C.Frameshift mutation
how some cells know to be muscle and some know to be bone.
Answer:
Their genetic code
Explanation:
Every cell is made with a genetic code that tells them what their jobs are in the cell, it is from when they are first formed, basically
What is the answer to it?
Answer:
Golgi body
Explanation:
A cell organelle is a structure found in a cell that plays a specific role or function. Some of the cell organelles in living cells include nucleus, mitochondria, chloroplast etc. Ideally, the NUCLEUS, which is the organelle that directs the processes of other organelles contain the genetic material called DNA, which is a type of nucleic acid.
However, some organelles like mitochondria, ribosome and chloroplast also contains nucleic acid.
- Mitochondria contains it's own DNA nucleic acid.
- Chloroplast, also contains its own DNA nucleic acid.
- Ribosomes contain RNA (ribosomal RNA and transfer RNA).
Which process is part of the carbon cycle and is least dependent on the water cycle?
Answer:
oxygen
Explanation:
we need oxygen don't mind me
A housefly is
is an
arthopoda why
Answer:
Arthropods as Carriers of Pathogens
Many arthropods can contaminate or spoil food. Insects such as houseflies or cockroaches may regurgitate pathogen-contaminated fluids prior to or during feeding. They may also defecate, contaminating the food with potential pathogens.
PLS HELP ASAP Select the word that means how easily water can move through a substance. Lesson 2.03 o particles permeability porosity
Answer:
permeability
Explanation:
dictionary definition: the state/quality of a material or membrane that causes it to allow liquids or gases to pass through it
in biology we use this term to describe the cell membrane, it is "semi-permeable" because it allows certain gasses and molecules to pass through
The water can easily move through a substance and it is called permeability. Hence, option B is correct.
What is permeability?The ability of molecules to pass through a biological membrane or barrier is known as biological permeability. Because cell membranes are selectively impermeable, substances cannot pass through the barrier without consideration. Some of the characteristics that affect permeability include polarity, hydrophobicity, charge, size, and shape.
The metabolic activities, survival, and potential use of the cell in both biotechnological applications and physiological systems are all greatly impacted by the cell membrane permeability, which controls the rate of solute transport into and out of the cell.
The water can easily move through a substance when the substance is permeable. Hence, option B is correct.
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PLS HELP
One important organelle that is found in plants, but not in animals is called chloroplast.
It is the site of _________.
The full-length (i.e., containing the entire protein-coding region) cDNA for a specific eukaryotic gene in humans is 1500 nucleotides long. You screen a pig genomic library with this cDNA and isolate two genomic clones of different lengths. Both clones are sequenced and found to be 1900 and 2100 nucleotides long from start codon to stop codon. Screening of genomic libraries of several other organisms reveals that all of them contain only one genomic clone -- pigs seem to be the exception to the rule here. What evolutionary events might have led to the presence of two genomic clones in pigs, and the discrepancies in their length compared to the cDNA probe
Answer:
In pigs, this gene suffered duplication and then paralogous genes diverged by accumulating mutations during evolution
Explanation:
Paralogous genes can be defined as evolutionarily related genes that emerged by duplication in a common ancestor of the two species being compared. Gene duplication is one of the most important mechanisms of genome evolution by which paralogous genes arise and acquire novel functions. After gene duplication, one of the two functional gene copies is prone to accumulate mutations because the organism has two genetic sequences to produce the same protein encoded by this gene. In consequence, it is expected that the cDNAs obtained from these genetic sequences show differences in nucleotide length.
Which animals is waiting for the wildebeests as they cross the Grumeti River? Which animals are waiting for them when they return to the Masai Mara?
A) Crocodiles and then the big cats are waiting for their return
B) Hippos and then their big family is waiting for their return
C) Hippos and then the big cats are waiting for their return
D) Crocodiles and then their family is waiting for their return
Answer:
I think it's c but I can't be for sure...
sorry if I'm wrong
Explanation:
No need for Brainlist I am probably wrong. I'm an idiot qwq
El factor Rh- (r) en humanos es una característica que se hereda como un factor recesivo. Determine el genotipo de los parentales de las siguientes familias: - 1er caso: Dos padres con RH+ (R) tienen 5 hijos de los cuales 1 presenta el factor Rh- . - 2do caso: Un padre con factor RH+ y una madre con factor Rhtienen 6 niños de los cuales 3 son RH+ y 3 son Rh- - 3er caso: Un padre con factor RH+ y una madre que presenta un factor Rh- tienen 6 niños de los cuales son todos RH+ . Compruebe los resultados en cada caso. Ayúdenme porfa, estoy desesperada
Answer:
Caso: Ambos padres heterocigostos, Rr (Rh+)Caso: Padre heterocigoto Rr (Rh+). Madre homocigota recesiva rr (Rh-)Caso: Padre homocigoto dominante RR (Eh+). Madre homocigota recesiva rr (Rh-)Explanation:
El factor Rh+ es expresado por un alelo dominante que llamaremos R (Genotipo RR o Rr)El factor Rh- es expresado por un alelo recesivo que llamaremos r (Genotipo rr)1er caso: Dos padres con RH+ (R) tienen 5 hijos de los cuales 1 presenta el factor Rh-
si al menos uno de los hijos presenta el factor Rh-, entonces debe haber recibido un alelo recesivo r de cada padre. Por tanto los padres deben ser heterocigotos para el tipo de sangre Rh.
Parentales) Rr x Rr
Gametas) R r R r
Cuadro de Punnett) R r
R RR Rr
r Rr rr
F1) 3/4 =75% de la progenie es Rh+ (RR o Rr)
1/4 = 25% de la progenie es Rh- (rr)
2do Caso: Un padre con factor RH+ y una madre con factor Rh- tienen 6 niños de los cuales 3 son RH+ y 3 son Rh-
Entre los hijos de esta pareja hay algunos que muestran Rh+ y Rh-.
Si la madre es Rh-, entonces su genotipo es rr y solo tiene alelos recesivos r para pasar a la progenie.
Sabemos que el padre es Rh+, lo que indica que en su genotipo hay al menos un alelo dominante R. Puesto que la mitad de sus hijos tiene factor Rh-, podemos asumir que el hombre es heterocigoto para el tipo de sangre (Rr). De los contrario, de ser homocigoto dominante, toda la descendencia seria Rh+. El padre le hereda a la mitad de los hijos el alelo R y a la otra mitad el alelo r.
Parentales) Rr x rr
Gametos) R r r r
Cuadro de Punnett)
R r
r Rr rr
r Rr rr
F1) 2/4 = 1/2 = 50% de la progenie Rh+ (Rr)
2/4 = 1/2 = 50% de la progenie Rh- (rr)
3er caso: Un padre con factor RH+ y una madre que presenta un factor Rh- tienen 6 niños de los cuales son todos RH+
Si la madre es Rh- su genortipo es rr y solo puede heredarle a los hijos alelos recesivos, r.
El padre es Rh+, con lo que inferimos que el genotipo tiene al menos un alelo dominante R. Puesto que todos los hijos de esta pareja son Rh+, podriamos suponer que el padre es homocigoto para el tipo de sangre Rh+, heredandole a los hijos solo alelos dominantes.
Parentales) RR x rr
Gametos) R R r r
Cuadro de Punnett)
R R
r Rr Rr
r Rr Rr
F1) 100% de la porgenie es Rr, expresando el factor Rh+.
(Nota: Cabe aclarar en este último caso que es posible queel padre sea heterocigoto y aún no hayan tenido un hijo Rh-. )
How did schools in the South respond to the ruling that they needed to integrate?
They refused or sometimes even closed schools instead of integrating
They quickly integrated Black and White schools
White students welcomed Black students with open arms
Southern governors enforced the Supreme Court's ruling
Answer: They refused or sometimes even closed schools instead of integrating
What is the main function of the reproductive system?
A.) to transport substances
B.) to remove wastes
C.) to continue the species
D.) to make hormones
Answer:
Explanation:
D.) to make hormones
According to the cladogram, which organisms are the most primitive?
Answer:
Beetles
Explanation:
They are the outgroup of the cladogram, and every new node is a development of a new trait. Since beetles have only the original node, they are the most primative.
13. When each allele in a heterozygous genotype influences the phenotype and
They have both traits associated with the aileles it is called
Answer:
Polygenic Trait
Explanation:
A taits phenotype is influenced by more than one gene. Traits that display a continuous distribution, such as height or skin color, are polygenic.
Explain why the statement “adaptations are a choice” is NOT accurate.
Answer:
because animals/ plants will do instinctively it over a period of time in order for them to survive.
Explanation:
hope that helps : )
plants cells would not not have been able to absorb these minerals ions from the pond by diffusion . explain why not
Answer:t hey cannot be absorbed by diffusion , because the minerals are in very low concentration. Instead, active transport is used. ... Because active transport moves ions against the concentration gradient into the root hair cells, energy is needed.
Explanation:
why give scientific names?
a. common names are misleading
b.names can be different according to the name of that country
i will give brainliest to the correct most detailed answer
anyone know the correct choice to the question?
Answer:
person 1 in row 3's genotype AA or Aa
Explanation:
the trait is recessive (given) which means in order to have it, you must obtain both alleles. in the pedigree, shaded shapes indicate people who have the trait, but person 1 in row 3 is not shaded so their genotype must be AA (dominant) or Aa (dominant leading) and their phenotype would not express the trait, because the dominant allele will "take over"
Which of the following describes how metamorphic rock forms?
A
Tectonic plate boundaries break apart an existing parent rock.
B
An igneous rock deep in the Earth is exposed to hot material.
C
Molten rock solidifies and hardens on top of the Earth’s crust.
D
A parent rock is baked and melted into liquid rock in the Earth.
An igneous rock deep in the Earth is exposed to high heat, high pressure, and hot mineral-rich fluids, by this process metamorphic rock forms, hence option B is correct.
What is a metamorphic rock?Metamorphic rocks are produced when rocks are exposed to high heat, and pressure, hot mineral-rich fluids, or maybe some combination of these factors, all these conditions are found deep on Earth.
In the deep of Earth, if an igneous rock deep in the Earth is exposed to hot material, this result forms a metamorphic rock.
This is also a result when rocks change their original shape and identity due to high heat or pressure, this pressure is only found deeper in the Earth.
Therefore, if an igneous rock deep in the Earth is exposed to hot material, it results in metamorphic rock.
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Some rice has been genetically altered to include_______ which kids need
to stay healthy.
Answer:
beta carotene (Vitamin A)
Explanation:
Please help will mark brainlest
The Sierra Nevadas are an example of a fault-block mountain range. Based on this information, which of the following processes formed the Sierra Nevadas?
Melted rock called magma rose through holes in Earth's crust and gradually solidified as it cooled.
Tectonic movement forced certain segments of Earth's crust downward and other segments upward in jagged chunks.
One tectonic plate moved beneath another plate at a subduction zone, causing the rock to melt and rise above Earth's surface.
Segments of Earth's crust bent and doubled over, and moving wind and water gradually shaped the rock into gently sloping domes.
Answer:
2nd answer
Explanation:
took the test
As per the given scenario, tectonic movement forced certain segments of Earth's crust downward and other segments upward in jagged chunks. The correct option is B.
What is tectonic movement?The mobility of the plates that end up making up the Earth's crust is referred to as tectonic shift. The Earth is composed of a dozen major plates and several minor plates.
According to the situation, tectonic movement pushed certain segments of the Earth's crust straight down and others upward in jagged chunks.
Thus, B is the correct answer.
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which is not true about vasular plants ?
A)big size
B) have roots
C) don t have xylem
D)don t have leaves
d
Answer:
D) Don't have leaves
Explanation:
A plant being vascular should have leaves, since they identified by their lignified leaves itself.
During sexual reproduction, each parent contributes
A
a double helix of chromosomes.
B
one strand of chromosomes, or half of the new organism's DNA.
C
a dominant gene and a recessive gene.
D
multiple mutated cells.
Answer:
[tex]\boxed {\boxed {\sf B. \ One \ strand \ of \ chromosomes \ or \ half \ of \ the \ new \ organism's \ DNA}}[/tex]
Explanation:
Sexual reproduction involves gametes. These are sex cells (sperm for males and eggs/ovum for females).
These sex cells are formed during meiosis. During this process, two rounds of cellular division occur, so there are four resulting haploid cells. Haploid means they contain half of the genetic information.
These cells are haploid because during fertilization, a sperm and egg fuse to form a zygote. Each parent contributes half of the DNA to create one complete set of DNA.
Therefore, the best answer choice is B. one strand of new chromosomes or half of the new organism's DNA.
Two difference between axillary bud and terminal bud
please help im in a test
When we break down glucose, what energy molecule is produced?
the correct answer is adenosine triphosphate or ATP
Can you please help me!
Answer:
You have not told us the location tell us this and I will edit my answer. Comment on this so I know.
Explanation:
To answer this question you need to know the range of temperatures is in that location. Then you use that as your answer.