Answer:
A spirometer is a device that measures the amount of air you take in per breath.
Explanation:
The spirometer measures the air from volume, and can compare it to someone of your same age, height, and gender. This is helpful to tell if your lungs aren't working properly to help doctors help you with your problems.
Approximately how many million
years ago (mya) were all of Africa and
South America inferred to be located
south of the equator
Answer:
I got you
Explanation: 359 mya million
hope this helps
Genetic engineers use plasmids. A plasmid is
A. a map of a gene.
B. a cell that is not yet specialized.
C. a small, circular piece of DNA.
D. an enzyme that can cut DNA into pieces.
Answer:
C. A small, circular piece of DNA
Explanation:
A plasmid, usually circular but sometimes linear, is a small double-stranded DNA unit, which is chromosome independent and is capable of self-replication. Each plasmid carries only a few genes. Carrying only a few genes, the plasmid’s size ranges from 1 to more than 1000 kbp. Genes required for organism survival and those that are generally beneficial to the host organism, such as antibiotic resistance, are often found in plasmids [1].
Mostly plasmids can be found in bacteria, but they are also present in multicellular organisms and archaea. Plasmids usually contain at least one gene and are not considered independent life forms even though they possess separate genes from their hosts
Which of these transport sediment?
A. Water
B. Wind
C. Glaciers
D. All of these
All the listed are transport sediments;
waterwindGlaciersWHAT ARE TRANSPORT SEDIMENTS:Sediment transport refers to the movement of solid particles as a result of gravity and transport factors.
Different materials are moved as a result of sediment transport.
The transport sediments include the following:
waterwindGlaciersLearn more about sediment transport at: https://brainly.com/question/2621857
Pls answer this asap I need it pla help meh
Answer:
1) C
2) C
3) A
4) B
5) A
Explanation:
Hope it helps
what is the formula for iron(ii) cyanide
here's the answer to your question hope it helps you
formula: Fe (C N) 2
At one beach, high tide occurs at 8 a.m. When will the next high tide most likely occur?
Answer:
It will most likely occur at 8pm
Explanation: I hope you have/had an amazing day today<3
Answer:
8pm
Explanation:
a time line of the changes that have occurred in modeling the atomic structure since the 1800s
please help!!
…………………….
Answer:
1) It eliminates extreme traits, 2) represents a population where most individuals are above average
Explanation:
Disruptive selection is DISRUPTIVE to an ecosystem, making the ecosystem scarcer of extreme traits. Also, a BELL-shaped pattern, where a line slopes upward and then back down, would represent a population that is mostly above average, since the climax is a maximum instead of a minimum. Hope that helps :)
last one lol i promise
Answer:
You're right, it's A. The temperature of the water is greater than 8 degrees Celsius in Beaker A.
Explanation:
I hope this answers your question(s). Have a good weekend!
:)
19. A strategy to reduce resource use through decreased demand and increased efficiency is
conservation
recycling
source reduction
biodiversity
Answer: A. Conservation
examples of endogenous antig
ens
Answer:
Exogenous antigens include particles considered foreign within the organism. For example, allergens (such as pollen), proteins from transplanted tissues and organs, and parts of microorganisms (such as coat, capsule, cell wall, flagella, fimbria, or toxin of bacteria, viruses, etc.)viral proteins produced during viral replication;proteins produced by intracellular bacteria such as Rickettsias and Chlamydias during their replication;proteins that have escaped into the cytosol from the phagosome of phagocytes such as antigen-presenting cells;describe a mercurial clinical thermometer.
Answer:
➢ In a mercury thermometer, a glass tube is filled with mercury and a standard temperature scale is marked on the tube. With changes in temperature, the mercury expands and contracts, and the temperature can be read from the scale. Mercury thermometers can be used to determine body, liquid, and vapor temperature.
[tex]Into \: your Arms[/tex]
#CarryOnLearning
Which do DNA and RNA have in common?
a. Both contain phosphate groups.
b. Both contain ribose molecules.
c. Both contain uracil.
d. Both are double stranded.
Answer:
[tex]a. \: Both \: contain \: \\ phosphate \: groups.[/tex]
Hope it helpfulWhich choice identifies categories of physical characteristics?
measurable qualities only
anything observable or measurable
actions only
observable qualities only
Answer:
anything observable or measurable
anything observable or measurable
Diploid plants have two sets of chromosomes. Polyploid plants have more than two sets of chromosomes, are often larger, and have more desirable characteristics. To create polyploid plants, plant breeders can treat diploid plants with a chemical that prevents the separation of sister chromatids during mitosis. Resulting cells that have any partial chromosome sets, even if in addition to one or more complete chromosome sets, typically do not survive this process.
If a diploid plant cell treated with such a chemical goes through a single round of mitosis, what is the MOST LIKELY genetic composition of the resulting cells that survive?
Answer:Both haploid and diploid cells can undergo mitosis. When a haploid cell undergoes mitosis, it produces two genetically identical haploid daughter cells; when a diploid cell undergoes mitosis, it produces two genetically identical diploid daughter cells.
Answer:
its b
Explanation:
To produce a tetraploid plant, the alkaloid colchicine is applied to the terminal bud of a branch. All the cells in the developing branch will be tetraploid (4n) with four sets of chromosomes. This includes cells of the stem, leaves, flowers and fruit. Gametes (egg and sperm) produced by a flower on this tetraploid branch will be diploid (2n) with two sets of chromosomes. A flower on the normal diploid (2n) branch will produce haploid (n) gametes containing one set of chromosomes.
Stages of mitosis in the formation of tetraploid cells. The original mother cell is diploid (2n). During anaphase the chromatids separate and move to opposite ends of the cell. Colchicine causes the dissolution (depolymerization) of protein microtubules which make up the mitotic spindle in dividing cells. This leaves the cell with twice as many single chromosomes (four sets rather than two). When this cell divides, each of the two daughter cells will have fours sets of chromosomes, a total of eight chomosomes per cell. [Note: Spindle poisons such as colchicine are used to prevent tumor cells from dividing in certain chemotherapy treatments.]
The botanical term parthenocarpy refers to the development of the ovary of a flower into a fruit without fertilization. [The biological term parthenogenesis refers to the development of an egg without fertilization.] Fruits that develop parthenocarpically are typically seedless. Some seedless fruits come from sterile triploid plants, with three sets of chromosomes rather than two. The triploid seeds are obtained by crossing a fertile tetraploid (4n) plant with a diploid (2n) plant. When you buy seedless watermelon seeds, you get two kinds of seeds, one for the fertile diploid plant and one for the sterile triploid. The triploid seeds are larger, and both types of seeds are planted in the same vicinity. Male flowers of the diploid plant provide the pollen which pollinates (but does not fertilize) the sterile triploid plant. The act of pollination induces fruit development without fertilization, thus the triploid watermelon fruits develop parthenocarpically and are seedless. Most bananas purchased at your local supermarket came from sterile triploid hybrids. The fruits developed parthenocarpically and are seedless.
How is skin color determined?
Answer:
Explanation: Skin color is determined by a pigment referred to as melanin
what does post school destination mean?
Post-school destination literally means your destination after schooling.
Post-school destinationPost- means after. Thus, post-school means 'after school'.
Post-school destinations, therefore, refer to where you are heading once you are done with school.
It is a phrase that is often used to describe the transition from one period of schooling to another or a period of schooling to taking up jobs or careers.
More on post-school destinations can be found here: https://brainly.com/question/953403
What characteristic do biologists use to classify organism into kingdoms
Answer:
the branch of mechanics concerned with the motion of objects without reference to the forces which cause the motion.
Does genetic drift occur in small population
can someone help me arrange this pls ?!?
Answer:
anaphase,metaphase,prophase,telophase
Which of the following is NOT true about the scientific method?
O A. It does not apply to problems encountered in everyday life
OB. It is a framework to consider opinions
OC. It begins with observations
OD. It is a general way of organizing an investigation
Answer: The answer is c
Explanation:
It always starts with observation sot find out what is going on in the lab.
which structures are adapted for supporting a plant?
a) Phloem tissues
b) Root hair cells
c) Stomata
d) Xylem vessels
Answer:
Stomata as without the gas not leaving the plant the will eventually die
disadvantages of binomial nomenclature
Answer:
the disadvantage of binominal nomenclature
Explanation:
Some of the main drawbacks of binomial nomenclature are: If two or more names are actually in use in compliance with the priority rule, the appropriate name will be used first and the other names will end up being synonyms because authenticity is synonymous with the senior.
Please help me please
The diagram shows the forelimb (front arm or leg) skeletal structure of three mammals. Mammal Skeletal Forelimbs Human Whale Bat
Identify two pieces of evidence from the diagram that are needed to support a claim that these organisms share a common ancestor.
Answer:
clear example of homologous structures is the forelimb of mammals. When examined closely, the forelimbs of humans, whales, dogs, and bats all are very similar in structure. Each possesses the same number of bones, arranged in almost the same way. ... They are analogous structures.
Explanation:
hope it helps you
5. Which of the following best describes the effect of coral bleaching on corals?
A. As temperatures increase, corals lose symbiotic algae, which provide most of their habitat
B. As temperatures decrease, corals lose their symbiotic algae, which provide most of their energy.
C. As temperatures increase, corals lose their symbiotic algae, which provide most of their energy.
D. As temperatures increase, corals gain symbiotic algae, which hinder their ability to conduct photosynthesis.
As temperatures increase, corals lose their symbiotic algae, which provide most of their energy. This is the best description to the effect of coral bleaching on corals. Thus, the correct option is C.
What are coral reefs?A coral reef is an underwater ecosystem which is characterized by the reef-building corals. Bleached corals are found in the underwater ecosystem which most likely show reduced growth rates, decreased reproductive capacity, increased susceptibility to diseases, and elevated mortality rates than the normal coral reefs. Changes in the coral community composition can occur when the more susceptible species are killed by bleaching events in the ecosystem.
When the conditions such as the temperature change, corals are expelled out the symbiotic algae which is living in their tissues, it is responsible for their colour. A spike of the temperature to 1 to 2°C in the oceans sustained over several weeks which can lead to bleaching, that turns corals white. If the corals are bleached for prolonged periods of time, they eventually die.
Therefore, the correct option is C.
Learn more about Coral reefs here:
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what are the 3 types of symbiosis?
Give examples.
Answer:
Types of Symbiosismutualism - a mutually beneficial symbiotic relationship.commensalism - a one-sided symbiotic relationship.parasitism - one species lives on, in or with a host species.competition - relationship in which organisms compete for resources.
Answer=
Mutualism, commensalism, and parasitism are the three forms of symbiosis. Symbiotic connections are classified into one of these categories based on the nature of the interaction between organisms. Mutualism is a positive connection in which both species gain from one another.
examples=
-For food and marine resources, sea sponges and coral compete.
-Small animals and jackals share the same water supply.
-In their natural settings, wolves and bears both pursue the same prey.
What are some advantages and disadvantages of being a social organism (include at least 4)
Why does a soild changes to liquid when heat is added
Answer:
Explanation:
When a solid is heated the particles started to vibrate faster and when it vibrate faster the outer layer breaks down and change into liquid.So,a solid change into liquid when heat is added.
Hope it helps you:)
which statement describes a response to external stimuli
Answer:
A rabbit runs away from a fox that is chasing it is external stimuli
Thirst and hunger are internal stimulation caused by hypothalamus of human brain
Yawning is a process occuring due to low oxygen levels in the blood which is also internal factor
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Thank You!
Answered by: ms115