Answer:
Exhaled air has more carbon dioxide than inhaled Air because during respiration the food breaks down with the help of oxygen to produce Carbon dioxide and water. ... Therefore Exhaled air contains more Carbon dioxide than inhaled Air.
A student is conductidg their science experiment on the effect of caffeine on doas.
receives plain
He has 3 groups of test subjects. The 1st group of dogs
water. The 2nd group of dogs receives 10 mg of caffeine each, and the 3rd group receives 50 mg of caffeine each.
measure their activity levels
by recording how long each dog runs without stopping,
He will
in this experiment?
after giving them the pills. What is the dependent variable
Answer:
How long the dog runs without stopping
Explanation:
The dependent or responding variable in an experiment is the variable that is dependent on the changes made to the independent variable. It is also the variable that is measured or recorded in an experiment.
In this experiment where a student tests the effect of caffeine on dogs. Three groups of dogs were used for the test and they received water, 10mg caffeine and 50mg caffeine respectively. The different level of caffeine used is tested by recording how long each dog runs without stopping. Hence, how long the dog runs without stopping is the DEPENDENT VARIABLE.
Which of the following is an example of a
homologous trait?
A. the wings of bees and birds
B. the forearm of different animals
C. the DNA of land animals
Answer:
A. the wings of bees and birds
Explanation:
A homologous trait is a trait that is similar morphologically and genetically to one another due to their shared ancestry. This means that the traits are formed from the same ancestors, hence, they are homologous or similar.
According to this question, the wings of bees and birds are homologous because they share the same ancestry.
how are hydrogen bond similar to iconic bonds?
Explanation:
Hydrogen bonds are similar to ionic bonds because they both involve the attraction between opposite charges. ... This creates one atom with a negative charge, called an anion, and one atom with a positive charge, called a cation. The attraction between these charges hold the atoms together in an ionic bond.
Hydrogen bonds are inter-molecular bonds. The key difference between hydrogen bond and ionic bond is that ionic bonding exists between permanent anions and cations, whereas hydrogen bonds exist between partial positive and partial negative charges
Light colored moths found in industrial area with dark vegetation
Scientists have discovered the specific mutation that famously turned moths black during the Industrial Revolution. In an iconic evolutionary case study, a black form of the peppered moth rapidly took over in industrial parts of the UK during the 1800s, as soot blackened the tree trunks and walls of its habitat.
Answer:
Light Colored Peppered Moths
Which is an
example of asexual
reproduction by cloning?
Answer:
It is the reproduction method used by organisms like plants, fungi and bacteria.
Explanation:
Examples of such organisms are hazel trees, blueberry plants, the american sweetgum etc.
I think budding, during this process a structure called a bud develops from the parent cell then later it separates itself from the parent cell to form an independent organism which is genetically identical to the parent cell..for example in a hydra..
hope it helps
Which statement summarizes the process shown in the diagram?
A
DNA is being transcribed into mRNA.
B
DNA is being replicated in preparation for cell division.
C
Amino acids are joining together and folding into a protein.
Answer:
A. DNA is being transcribed into mRNA
Explanation:
The process being diagrammatically described in this question portrays TRANSCRIPTION, which is the process whereby a mRNA molecule is synthesized using the information in a DNA template.
According to the diagram in this question, the DNA located in the nucleus is indicated by the blue strand. The mRNA transcript being produced is indicated by the red strand and can be seen leaving the nucleus.
The statements on the left are incorrect
Write the correct statement.
Incorrect statements
1. Breathing produces carbon
dioxide from glucose
2. Only animals carry out
respiration. If someone can help with this it’d be greatly appreciated
Answer:
Carbon dioxide creates oxygen so we can breathe and seperates it from glucose
All species and humans breathe fish have gills to breathe underwater so not just animals have respiration.
Explanation:
Please help me with this *picture included
Explanation:
sorry but the picture is not clear plus its kind of blankPls help! I need to finish my test :/
When certain stems from a plant grow outward along the ground and establish new roots and shoots , this is reproduction using
A: tubers
B: runners
C: layering
D: corms
Answer:
B
Explanation:
Answer:
the answer is b
Explanation:
many types of grasses do this to develop a web of plants
Which is a part of interphase?
A. Telophase
B. Cytokinesis
C. Prophase
D. G, phase
Answer:
D. G1 phaseExplanation:
Interphase is a stage of the cell cycle that occurs between the G1, S, and G2 phases. The first gap phase is also known as the G1 phase. During this phase, the cell expands in size. It duplicates cell organelles and synthesizes molecular components necessary for mitotic division's later stages.
OAmalOHopeO
Please help!
A. Why would the saguaro be considered a keystone species in its ecosystem?
B. Name examples of predation, mutualism, and commensalism that involve the saguaro.
C. What is one way a desert ecosystem would be affected if environmental changes were to cause a decrease in the saguaro population?
Answer:
Explanation:
A. The SAGUARO fruits ripen during the peak of drought in the early summer and are about the only moist food source for many birds, mammals, and insects during this part of the year. Saguaros make excellent nesting places for many birds.
The Saguaro fruits ripen during the peak of drought in the early summer and are about the only moist food source for many birds, mammals, and insects during this part of the year.
What are Saguaro fruits?The seeds of the saguaro, which are rich in protein and fat, have a nut-like flavor and are very pleasant tasting. The fruit can be consumed both fresh and cooked, its pulp dried into cakes, and its juice made into syrup and jam.
Raw or dried and crushed into flour, the seeds are consumed. Both alcoholic and nonalcoholic drinks can be prepared from juice.
Saguaro flowers are typically found close to the apex of the cactus' stems and arms. They have a diameter of around 3 inches (8 cm) and are white in hue. They give out a strong aroma resembling that of overripe melons.
Therefore, The Saguaro fruits ripen during the peak of drought in the early summer and are about the only moist food source for many birds, mammals, and insects during this part of the year.
To learn more about saguuaro, refer to the link:
https://brainly.com/question/13369995
#SPJ2
⚠️please help ASAP, this is a one of the last questions for a very important test I’m taking and I would like to make sure my answer is correct
What did sharks and
rays develop that
their ancestors did
not have?
A. lobes that were the beginnings of arms and legs
B. jaws that helped with catching prey
C. legs to be able to survive on land
D. amniotic eggs
Answer:
i believe its D, amniotic eggs.
Explanation:
13. How would you describe the gradient of a river that has meanders?
Answer:How would you describe the gradient of a river that has meanders? A river that has meanders probably has a low gradient. Braided streams are a direct result of large sediment load, particularly when a high percentage of the load is composed of coarse sand and gravel.
Explanation:
PLEASE HELP Calculate the volume of the block using the formula
Answer:
21.553125
Explanation:
You can round to whatever you feel, but this is the answer when you multiply 2.75 x 2.75 x 2.85
:D
¿Cómo se llama el proceso de señalización en el que las señales se secretan hacia el torrente sanguíneo y se distribuyen por todo el cuerpo? Seleccione una: a.Neuronal b.Autocrina c.Endocrina d.Paracrina
Answer:
c.Endocrina
Explanation:
El sistema endocrino consta de órganos que producen sustancias químicas especiales llamadas hormonas.
Las hormonas son mensajeros químicos secretados directamente en el torrente sanguíneo que regulan diversas actividades en el cuerpo.
Por lo tanto, el sistema endocrino secreta sustancias químicas en el torrente sanguíneo.
Fertilizer sacks have a three- number value called the NPK value written on them. What does the NPK stand for (18-24-12 written on the bag)?
Answer:
it's. a level number
Explanation:
Every label carries three conspicuous numbers, usually right above or below the product name. These three numbers form what is called the fertilizer's N-P-K ratio — the proportion of three plant nutrients in order: nitrogen (N), phosphorus (P) and potassium (K).
3. Which of the following is NOT a part of the female reproductive system: a. uterus b. oviduct C testes d. all of the above
Answer:
C. Testes
Explanation:
Testes are only seen in males. It is an organ that produces spermatozoa (male reproductive cells).
55:09
Which best describes meiosis?
It produces cells that are identical to the original cell.
It is responsible for the replacement of damaged skin cells.
It is responsible for growth of the organism.
It produces male and female sex cells.
Answer:
The best option that describes meiosis is the last one: "It produces male and female sex cells"
Explanation:
Meiosis is the process of making offspring, from the joining of a sperm cell, from a male, and an egg cell, from a female, to the creation of a zygote. In order for life to be created (at least for a human baby), it'll need 46 chromosomes. And so 23 chromosome come from the sperm cell while the other 23 come from the egg cell.
How are ions transported around the plant
the suns pole reversals are tied to its
Answer:
Cycle of sunspots. I hope this helps! I looked up the answer by the way, so no credit to me lol
Answer:cycle of the sunspots
Explanation: This reversal happens every 11 years and is tied to the sun’s cycle of activity,now near it’s peak. The effects of the reversal will ripple throughout the solar system. Every 11 years ,at the sun’s magnetic polarity reverses itself.
define the term (1)semi-permeable membrane (2) osmosis tell the answer i will mark u as brainlist
Answer:
a)the outermost part of an animal cell that selectively allows things to pass through and come out.
b) the passing of water molecules from higher conc. to lower conc.
Answer:
(a) Semi-permeable membrane:
A semipermeable membrane is a membrane that only allows the movement of solvent molecules but restricts the movement of solute particles across the membrane.
(b) Osmosis:
The process of movement of water molecules from a region of higher concentration to a region of lower concentration through a semipermeable membrane is called osmosis.
When two nearby concentrations are different, materials will tend to spread out to equalize the concentration. For example, if you put a drop of food colouring in some water it will gradually spread through the whole water.
Define atomic weight
Answer:
Atomic mass / Atomic Weight is defined as 1 ⁄ 12 of the mass of a single carbon-12 atom
Determine if this passage is an argument or nonargument: Evolution is central to vertebrate biology because it provides a principle that organizes the diversity we see among living vertebrates. Also it helps to fit extinct forms into the context of living species. Classification, initially a process of attaching names to organisms, has become a method of understanding evolution. --F. Harvey Pough, et al., Vertebrate Life, 7th edition Group of answer choices Nonargument Argument; conclusion: It helps to fit ... the context of living species. Argument; conclusion: Evolution is central to vertebrate biology. Argument; conclusion: Classification ... a method for understanding evolution. Argument; conclusion: It provides a principle ... among living vertebrates.
Answer:
C). Argument; conclusion: Classification,...a method of understanding evolution.
Explanation:
An argument is characterized as 'a series of propositions organized so that the final proposition is a conclusion that is intended to follow logically from the previous propositions.' The given passage exemplifies an argument as it puts forward a claim that can be argued upon if it is true or not and supported through adequate reasoning. The factual evidences are provided to support the validity of the proposition and the conclusion that 'classification initially a process...understanding evolution' is compelled. Thus, option C is the correct answer.
Which is a part of interphase?
A. Prophase
B. Telophase
C. G, phase
D. Cytokinesis
Answer:
G phase
Explanation:
Prophase, Telophase are part of Mitosis.
Cytokinesis is the last phase of cell cycle.
Answer:
G phase
Explanation:
Some scientists contend that many species of dinosaur had a metabolism more like a warm-blooded mammal's than a cold-blooded reptile's. that many species of dinosaur had a metabolism more like that the metabolism of many dinosaur species were more like that the metabolisms of many species of dinosaurs were more like those of there were many species of dinosaurs that had metabolisms more like those of there were many dinosaur species that had a metabolism more like that of
Answer: that many species of dinosaur had a metabolism more like
Explanation:
From the question given, the correct use of tense occured in option A "that many species of dinosaur had a metabolism more like".
In option B, a wrong verb was used in this case. The wrong verb was "were" It should also be noted that the use of "that" and "than those" for options C, D and E aren't necessary.
Therefore, the correct option is A.
Which is NOT part of our solar system? A. The Sun B. The Milky Way C. Jupiter D. Asteroids and comets
Answer:
The Milky Way
Explanation:
The Solar system is part of the Milky Way, not the other way around.
IN YOUR OWN WORDS, what is the definition for Triple X Syndrome?
Answer:
Trisomy x syndrome is also called trisomy x or 47,xxx, is a genetic disorder that affects about 1 in 1000 females.
Que porcentaje de la energía disponible en un nivel trafico puede ser transferido al siguiente nivel trafico
Answer:
Aproximadamente 10 centesimo.
Explanation:
En cada trófico nivel solo a pequeño proporción de energía (aproximadamente 10 centesimo) es trasladado a el siquente a nivel.
Pardon my spanish im not fluent. sorry
Why is Earth’s inner core solid and its outer core liquid ?
Answer:
no idea
Explanation:
Select the correct answer.
Lisa is interested in studying the chemical processes in living organisms.
In which field of biology should she pursue her studies?
A.
Biophysics
B.
Biochemistry
C.
Biometry
Answer:
B.) Biochemistry
Explanation:
