Answer:
En los seres vivos acuáticos el oxigeno es tomado del agua y penetra a la célula por el fenómeno de respiración branquial.
Explanation:
La respiración es el proceso mediante el cual los seres vivos obtienen oxígeno. Es decir, la respiración implica el reemplazo del dióxido de carbono en los pulmones por oxígeno del aire, y puede ser pulmonar, branquial, traqueal o cutánea.
La respiración branquial es un tipo de respiración propia de la mayoría de los animales acuáticos y se lleva a cabo en las branquias, unas estructuras con forma de láminas que contienen vasos sanguíneos. Los animales acuáticos dispone de estos órganos que permiten absorber el oxígeno que se encuentra en el agua y eliminar el dióxido de carbono.
El agua que entra por la boca y circula por las branquias, donde el oxígeno es absorbido, pasa a la sangre y es transportado a todo el cuerpo donde se produce una respiración celular.
Es decir, en los seres vivos acuáticos el oxigeno es tomado del agua y penetra a la célula por el fenómeno de respiración branquial.
A scientific _______ is an explanation based on many observations by many different researchers.
A scientific _______ is usually an explanation based on one observation by one researcher.
A.
theory; hypothesis
B.
deduction; inference
C.
hypothesis; theory
D.
inference; deduction
Answer:
A
Theory
Hypothesis
I hope this helps
Scientists have discovered a fossil skeleton of a whale-like creature that lived in the early Eocene epoch. The skeleton shows an organism with large fore and hind limbs with distinct toes. Fossil skeletons of closely related species from later periods show organisms lacking hind limbs. Which conclusion does this observation best support?
A. Ancestors of whales may once have been able to walk.
B.Ancestors of whales had fewer bones than modern whales.
C. Whales and their ancestors have always been ocean dwellers.
D. Whales and their ancestors have always been the largest living
Answer:
A. Ancestors of whales may once have been able to walk.
Explanation:
*
Which example is NOT an outcome of the ecosystem modifying a phenotype?
A.the changing of the color of an animal's fur as the temperature changes
B.the increased intelligence of a person who attended school for many years
C.the pink-flowered snapdragons that result from crosses between red-flowered and
white-flowered snapdragon plants
D.the very short stature of a kind of tree that grows at a high altitude in comparison with
the same kind of tree growing at a lower altitude
Answer:
The pink-flowered snapdragons that result from crosses between red-flowered and white-flowered snapdragon plants
Explanation:
Heredity is the passage of what from parent to offspring?
a. Genetic material
b. Oxygenated blood
c. Digestive enzymes
d. Connective tissue
Answer:
A
Explanation:
Genetic material is what passes down traits and makes us look similar to our parents
When we talk about heredity, we're talking about the precise ways that genes are used to transmit traits or characteristics from one generation to the next, hence option A is correct.
What is Heredity?The instructions for creating certain proteins, which are in charge of an individual's distinctive qualities, are encoded by genes.
The youthful creation of living creatures, known in biology as progeny, can be created by a single organism or, in the event of sexual reproduction, by two organisms.
DNA (deoxyribonucleic acid), which makes up genes, contains instructions for how cells should function as well as the traits that distinguish each individual.
Therefore, each of your biological parents contributes half of your DNA to you, and you could inherit a gene mutation from one or both of them, hence option A is correct.
Learn more about genes, here:
https://brainly.com/question/1612667
#SPJ2
I am giving 15 ponits! pls answer!!
How do you predict that a change to a single nitrogen base, such as an adenine or a thymine, could affect the function of a gene?
Answer:
Study whether a different protein is produced or has a different function because another amino acid has been synthesized
PLEASE MARK ME BRAINLYIST
Explanation:
Do mutations in body cells contribute to genetic variation?(1 point)
A) No, the causes of body cell mutations are outside the body and cannot alter DNA.
B) Yes, the mutations can be passed on to offspring and contribute to variation in the population.
C) Yes, these body cell mutations lead to mutations in the gametes.
D) No, the mutations cannot be passed to offspring and only affect the individual.
A mutation is the alteration of the genetic sequence of an organism, which can either be inherited or cannot be inherited. The mutation when transmitted to the offspring leads to genetic variation.
The correct answer is:
Option B. Yes, the mutations can be passed on to offspring and contribute to variation in the population.
Mutation is the change in the genetic sequence of the organism, which can be caused due to environmental factors and can be inherited.
The mutations can lead to genetic disorders, chromosomal disorders, or any other conditions. The mutations like a disease or adaptation that can be passed onto the offspring can result in genetic variation.
The mutation leads to genetic diversity, as the mutation is also the first step towards evolution. The organisms better suited to the environment will survive more and adapt more. These changes in the organisms will be inherited by the offspring leading to genetic variation.
Therefore Option B is correct.
To know more about mutation, refer to the following link:
https://brainly.com/question/4222118
What is the best reason that producers are the most numerous group in an ecosystem?
A. Producers produce food energy for themselves and all the other levels
B. There is more room for small organisms than there is for large ones.
C. As energy flows through the ecosystem some anergy is added at each step.
D. Soil and temperature conditions is an ecosystem always favor producers.
Answer:
A is the answer taking the test right now
hope you have a great day
If a mosquito has 6 chromosomes in each body cell how many chromosomes will each new body cell have after mitosis?
Answer:
After mitosis, the daughter cells will have the same number of chromosomes as the parent cell, so 6 chromosomes
Transpiration is the loss of oxygen through a plant’s leaves true or false
Answer:
in plants is responsible for the timing of seasonal activities such as flowering and growth.Transpiration is the loss of OXYGEN through a plant's leaves. False- water. When the guard cells of a leaf lose water, the stomata OPEN.
Explanation:
so the answer is True
why do hot springs in Yellowstone national park at wooden walkway built around them
Help!!! Could someone please help me on this question?!
Answer:
the right answer is A!.....
Answer:
A. Baby squirels that inherit the trait are most likely to survive and pass the trait to their offspring
Explanation:
This is an example of natural selection, which is survival of the fittest. If the best trait is sharp teeth, they are more likely to survive and pass the trait on to others.
Como resultado del proceso de la fotosíntesis se elimina a través de los estomas a La glucosa b) El oxígeno. C) El dióxido de carbono d ) Oxígeno y dióxido de carbono
Answer:
Como resultado del proceso de la fotosíntesis se elimina a través de los estomas el oxígeno.
Explanation:
La fotosíntesis es un proceso metabólico que llevan a cabo determinadas células de organismos autótrofos, es decir, aquellas que tienen la capacidad de producir su propio alimento, como las plantas. Con este proceso, las plantas captan la energía de la luz solar y la transforman en energía química, para producir materia orgánica a través de materia inorgánica.
Los procesos que llevan a cabo las plantas en la fotosíntesis se llevan a cabo en 2 etapas: en la primera etapa las plantas absorben el agua del suelo a través de las raíces. A través de sus tallos lo transportan hasta sus hojas. En estos se encuentra el pigmento llamado clorofila, que además de darle a la hoja el color verde, capta la luz solar y rompe la molécula de agua (H₂O), separando el hidrógeno (H) del oxígeno (O₂). En esta etapa se almacena energía y se libera oxígeno al medio ambiente.
La otra etapa es capturar dióxido de carbono. Esto proporciona los átomos de carbono y oxígeno que, junto con el hidrógeno y la energía almacenada, formarán la molécula de glucosa.
Entonces, los estomas son poros en la superficie de las plantas, encontrándose mayoritariamente en las hojas y en menor medida en los tallos y otros órganos. En ellas transcurre el intercambio gaseoso mecánico, es decir que en este lugar sale el oxígeno y entra dióxido de carbono en la fotosíntesis.
Por lo que, como resultado del proceso de la fotosíntesis se elimina a través de los estomas el oxígeno.
Internal feedback mechanisms keep your body in homeostasis as
A you breathe faster while slowing from a jog to a walk
O B. you breathe faster while running faster
O C. you breathe slower while you are bleeding
O D. you breathe slower while your heart rate increases
Answer:
the answer is A because it is the best answer
How do you think new proteins affect the fitness of children?
Answer:
it affects ALOT!
Explanation:
Although health initiatives promote increased physical activity in children, the physiologic outcomes have not been well characterized. This investigation examined the effects of programmed aerobic exercise on protein metabolism in children (n = 7; mean ± SEM: 9.14 ± 0.46 y old; weight, 32.1 ± 1.6 kg; height, 138 ± 2.5 cm; and body mass index, 16.21 ± 0.36 kg/m2 ) using 15N-glycine methodology. Boys (n = 5) and girls (n = 2) walked (5 d/wk, 3.2–6.4 km/d) for 6 wk. Criterion measures taken at baseline (Pre) and after the exercise program (Post) included anthropometric data, dietary assessment, nitrogen balance, nitrogen flux (Q), protein synthesis (PS), protein breakdown (PB) and net protein balance [(Net) = PS − PB]. After the walking program, there were no significant changes in body weight, fat-free mass or percentage of body fat, whereas height increased (P < 0.01). Energy and protein intakes were constant throughout the study. Nitrogen balance was significantly more positive Post than Pre (P < 0.05). There was a significant decrease in Q (P < 0.0001) with corresponding decreases in PS (P < 0.001) and PB (P < 0.01). These data provide the first evidence that programmed aerobic exercise alters whole-body protein utilization in healthy, nonobese children. Longitudinal studies are required to further examine changes in protein metabolism associated with increased physical activity in this population. In addition, findings suggest a need to evaluate nutrient requirements for healthy, physically active boys and girls.
by chance may i get brainliest - :)
New proteins affect the fitness of children by; increasing fitness
Proteins as bodybuilding foodsProteins as food nutrient precursors function to build the tissues of the body and hence, are necessary for fitness.
The fitness of children is increased by the consumption of new proteins.On this note, we can conclude that proteins affect the fitness of children by increasing the fitness of children.
Read more on proteins;
https://brainly.com/question/10058019
Transcribe the following strand of DNA into mRNA:
DNA: TAC-GCC-GAC-ACT
Name three large molecules that make up the bulk of the food humans eat, and identify the products of each one that result from digestion.
The body breaks down nutrients from food and drink into carbohydrates, protein, fats, and vitamins.
CARBOHYDRATES. Carbohydrates are the sugars, starches, and fiber found in many foods.
PROTEIN.
FATS.
VITAMINS.
Explanation:
I hope this is what your looking for. If not, let me know!
(this answer is from www.msdmanuals.com, turn this information into your own words. I am giving credit. :)
The three large molecules that make up the bulk of the food humans eat are:
CarbohydrateProteinFatsthe products of each one that result from digestion are;
Carbohydrate : Fructose, glucoseProtein : Amino acidFats:monoglycerides and fatty acids.large molecules are the giant molecules that is been found in our daily diet and this includes Carbohydrate, Protein, Fats.
However after digestion of these large molecules after enzymes have reacted on it they will give the products which was listed above.
Learn more about large molecules
https://brainly.com/question/17180419
Look at all of the ways that you have added carbon to the environment, list some actions that you can take to reduce your carbon footprint in the areas of transportation, work (school), recreation, food and shelter. (2 for each if possible)
Answer:
- Use bikes and non motor engines to get short distances BIKES is a good option.
- Support electricaly charged vehicles
- Turn off your car when you are not driving
- Walk to school if you can
- Make sure to recycle paper
- reuse old notebooks that are not finished for the next year
- Get outdoors and spread your carbon dioxide
- try playing ball games and not video games so much becasue it means you use electricity that is generated by fossil
- Turn off lights before bed
- dont keep the TV on all the time.
Explanation:
Hope that helps :)
A land breeze occurs during the ________ because the air above the land is a _________ pressure
Which of the following has been proven true by researchers of identical twins?
a. Identical twins have different personality genes.
b. Identical twins are never the same gender.
c. Identical twins share the same DNA and blood type.
d. Identical twins are no more alike than fraternal twins.
Answer: B. Blood Type
Explanation: Got it right on edge
If the DNA molecule is only composed of four possible nitrogen bases, how can thousands of different proteins be formed from such a limited set of fixed shapes?
Answer:
nucleotides are only building blocks whose combinations determine different codons which subsequently associate in a sequential manner in order to create different amino acid combinations
Explanation:
A gene is a specific segment of DNA whose (nucleotide) sequence is copied into an RNA during the process of transcription, typically a messenger RNA (mRNA) molecule which is subsequently used to synthesize a protein. During translation, each triplet of nucleotides, i.e., each codon, corresponds to a specific amino acid. There are 64 possible codons (4³: 64), which can combine in different ways to create different amino acid combinations, and thus they are responsible for the generation of a huge amount of proteins coded by a given genome.
How is natural selection similar to selective breeding? How is natural selection different from selective breeding?
Answer:
Natural selection and selective breeding can both cause changes in animals and plants.the difference between the two is that natural selection happens naturally, but selective breeding only occurs when humans intervene. for this reason selective breeding is sometimes called artificial selection.
Explanation:
Hope this helped Mark BRAINLEST!!!
50 POINTS
How can the environment impact a particular population of a species?
Answer:
Certain species need different environments to live in and if its too cold for one species it can lead to death of the population of that species.
that is what I put
Explanation:
What would happen within a few months if all decomposers on Earth disappeared overnight?
There would be an overabundance of organic waste.
Plants would grow out of control.
Animals would grow out of control.
There would be no visible impact.
Answer:
There would be an overabundance of organic waste.
Explanation:
I took the same test :)
Sharks protect producers (sea grasses)
by
acting as abiotic limiting factors
allowing populations of sea grass consumers
(organisms that eat sea grass) to grow
uncontrollably
keeping the populations of sea-grass.
consumers in check (controlled)
Answer:
bacteria and soil.
Explanation:
basically
Curly hair (C) is dominant where straight hair (c) is recessive. If a person who is CC were to have children with a person who is cc, could it be possible for them to have a child with straight hair?
a
yes
b
no
Answer:
No, it would not be possible to have a child with straight hair.
Explanation:
The Punnett cross would be CC x cc, so all the offspring would be Cc. Since straight hair is only cc, the kids would not have straight hair.
Awnser:
yes, it is possible :)
Explanation:
Their children would would have the dominant trait, curly hair, and the recessive straight hair gene hidden in their dna. If there was a chance that one of their curly haired children met with a cc-partner with straight hair, then they would have a 1 in 2 chance. Even with a Cc-partner, there would be a 1 in 4 chance of the straight hair trait "skipping a generation".
The elephant and silverback are similar because they both travel looking for *
Water
Fruits and seeds
A mate
I am made up of nucleotides. Am I DNA RNA or both?
Answer:
DNA
Explanation:
hope this help's
the eye is a delicate organ, which is formed from multiple_____?
AHHHH please helpp!!!
Answer:
tissue
Explanation:
since the eye is an organ, where an organ is said to be a group of tissues.
Answer:
Tissue
Explanation:
It's formed from multiple tissue
When facing potential threats, how does the endocrine system assist the immune system? A. The endocrine system releases hormones to prepare the body for response.
B.The endocrine system increases breathing rate and blood flow.
C.The endocrine system gives a physiological reaction in response.
D.The endocrine system allows for movement in coordination with the muscles.
Answer:
B
Explanation:
The endocrine system regulates oxygenation and blood perfusion.
Come to this question for BIG POINTS!!!!! Hey this is a review but counts a lot of my average. NOT A TEST!!! On mastery connect genetics so if you have Mastery connect check on there. Ignore any answers on there NOT my real answer just a random one. No links(I am prepared to sue) No unhelpful answers ( Prepared to email) only answer if you think you are 100% right.