Answer:
a. True
Explanation:
Osmolarity is a measure of solute concentration, that is, it indicates how much solute there is in a liquid. As we know, osmosis is the movement of solute across the cell membrane, where the solute passes from the more concentrated side to the less concentrated side. Osmolarity is directly linked to this concept, but it is not able to indicate the direction of movement of the solute. This is because the solute will only pass through the membrane if it is a penetrating solute. Non-penetrating solutes do not have the ability to move through the membrane, even though the osmolarity of the liquid is high.
1. Deciduous trees lose their leaves seasonally and include trees such as cedar and maple.
a. True
b. False
2. Hardwoods reproduce using flowers and have broad leaves; hardwoods include trees such as mango, elm, and pine.
a. True
b. False
3. Conifer leaves are generally thin and needle-like, while seeds are contained in cones. Conifers include pine and elm.
a. True
b. False
4. Evergreens are plants that maintain their leaves in all seasons and include trees such as cedar, mango, and pine.'
a. True
b. False
Which of the following is not a limitation of the biological species concept
Answer:
to be considered a species, a population must be reproductively isolated from other species
Dehydration synthesis leads to ?
Explanation:
Dehydration synthesis leads to the formation of water..
Answer:
Dehydration synthesis is the process of joining two molecules, or compounds, together following the removal of water. During a condensation reaction, two molecules are condensed and water is lost to form a large molecule.
Explanation:
Hope this helps.
plz explain in your own words
what are conjugated molecules????
What is the
nature of water molecules makes that able to absorb heat and moderate our
climate.
A tetrad is composed of
Andy is sitting on the sofa, quietly reading a book. Which of the following is most likely supplying the majority of his energy right now?
a. amino acids
b. ice cream
c. polypeptides
d. fats.
e. cholesterol
f. glycogen
53 The graph below shows the changes in the number of species in an ecosystem
Species Diversity
300
200
Number of Species
|..
100
و 12 19 0
1989
1994
1980
Year
Which event was most likely the cause of the changes in species diversity in this ecosystem?
A large volcanic eruption
B A flash flood
Amatorado
D Amigration of cuts
Answer:
your pic is too blurry i cant see
Explanation:
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Only a few thousand years
passed between the
appearance of life on Earth
and the appearance of
dinosaurs
True or false?
Answer:
hlw its jess bragoli
your answer is here
• false
Explanation:
The dinosaurs died out 65 million ago
and 65 million is a lot. Not a few
so your ans will be
false
Can you add nutrition please?
Answer:
yes we can add nutrition from healthy and nutritious foods .
hope it is helpful to you
economic importance of mosquito larva list five
Explanation:
economic importance of mosquito larva are
Mosquito larvae grow by consuming microorganisms such as algae and microbes that decompose decaying plant material. Larval mosquitoes contribute to aquatic food chains by serving as food sources for many predators, including fish and birds.i hope it will help you
which characteristic of water allows it to absorb large amounts of energy without a large rise in temperature
Answer:
Specific heat capacity
Explanation:
Please please help!!
Answer:
option 3
Explanation:
How many chromosomes do each sex cell have
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My AnswerIn humans, cells other than human sex cells, are diploid and have 23 pairs of chromosomes. Human sex cells (egg and sperm cells) contain a single set of chromosomes and are known as haploid.
I Hope it's Helps ╮(＾▽＾)╭
#CarryOnLearningAn organism that creates its own food is called:
A) a producer
B)a consumer
C)a carnivore
D) a decomposer
Answer:
a
Explanation:
Answer:
An autotroph is an organism that can produce its own food using light, water, carbon dioxide, or other chemicals. Because autotrophs produce their own food, they are sometimes called producers.Organisms are characterized into two broad categories based upon how they obtain their energy and nutrients: autotrophs and heterotrophs. Autotrophs are known as producers because they are able to make their own food from raw materials and energy. Examples include plants, algae, and some types of bacteria.
Question 3 of 10
What is the next step in the scientific method, following stating a question?
A. Analyzing the data
B. Forming a hypothesis
C. Collecting the data
Answer:
B. Forming a hypothesis
Explanation:
Once you have a question in mind, you form a hypothesis (which is sort of an educated guess of what you expect or do not expect to happen) and then finally you can start on scientific investigations of collecting data and end with analyzing data and showing conclusion.
Answer:
the correct answer is B
Explanation:
because you always try to understand your question after you state it
The bacterium Salmonella enterica can cause severe food poisoning and the lining of the alimentary canal may be damaged. In these cases absorption of digested food products cannot easily take place. Which region of the alimentary canal is most affected?
A colon B ileum C oesophagus D stomach
How does carbon dioxide travel in blood via dissolved form
Answer:
carbon dioxide is more soluble in water than oxygen and hence is mostly transported in the dissolved form in our blood.
Carbon dioxide can be transported through the blood via three methods. It is dissolved directly in the blood, bound to plasma proteins or hemoglobin, or converted into bicarbonate.
The majority of carbon dioxide is transported as part of the bicarbonate system.
Goodluck
how can you lessen the harmful effect of soil erosion?
Answer:
Trees and other plants
Explanation:
Trees and plants prevent erosion by holding the soil together with their roots.
What is a mutation?
A. The visual appearance of an organism
B. A damaged protein
C. A permanent change in DNA or RNA
D. A harmful change to an organism's phenotype
Answer:d
Explanation:
it’s right
Question 11
Plasmids are located
in the nucleus
continuous with the nuclear envelope
in the cytoplasm
in the nucleolus
Answer: eurkayotic cells
Explanation:
What are the measures of <1 and <2 Show your work or explain your answers.
Answer:
<1=105 <2=75
Explanation:
So 2 is 75 degrees because it's corrosponding with <6.
75+<1=180
-75 -75
<1=105
2. What is the longest wavelength?
Answer:
red
Explanation:
Visible light may be a tiny part of the electromagnetic spectrum, but there are still many variations of wavelengths. We see these variations as colors. On one end of the spectrum is red light, with the longest wavelength. Blue or violet light has the shortest wavelength.
Answer:
red has the longest wavelength.
Explanation:
blue and violet are the shortest
If the contents of a cell have a solute concentration of 0.04 percent which of these solutions would cause it to swell?
Answer:
The contents of a cell if has the solute concentration as 0.04 percent then it should have much lesser concentration that the cell, then only it will allow the cell to swell. Because of the solutions with a lower osmotic pressure than a cell fluid solution concentration, can make it swell.
Explanation:
Her eyes are wide-set and slightly slanted. Her nose is short and flat, and she keeps her mouth slightly open. There is a straight crease across her palm, and her fifth digit is unusually short. The doctor tells her parents she has an inherited disorder. If you were the doctor what would you diagnosis Kate with? Discuss the etiology of Kate’s disorder? What is the biggest risk factor for this disorder? How can or will this disorder affect Kate? What test could have been completed to diagnosis this disorder before Kate’s birth?
Answer:
- These morphological features belong to Down syndrome.
- Diagnosis: Down syndrome (Trisomy Extra chromosome 21).
- Etiology: the presence of three copies of the autosomal chromosome 21 instead of two copies in body (somatic) cells.
- Most important health problem: Down syndrome increases the risk of developing Alzheimer's disease (other health problems include heart congenital defects, vision problems, hearing loss, hypothyroidism)
- Diagnostic test: Amniocentesis
Explanation:
Down syndrome (DS) is the most frequent chromosomal abnormality which is generally caused by the presence of an extra copy of autosomal chromosome 21, thereby it is an autosomal trisomy (trisomy 21). DS is often associated with intellectual disability and increased risk of developing Alzheimer's, as well as health problems including, among others, heart congenital defects, vision problems, hypothyroidism, blood disorders, hypotonia, endocrine problems, dental problems, seizures, etc. Amniocentesis is the most common invasive prenatal diagnostic procedure which is used to identify chromosomal abnormalities such as trisomy 21 (Down syndrome). Amniocentesis is done between 15 weeks and 20 weeks of pregnancy.
Which process requires the absorption of sunlight?
Answer:
photosynthesis requires the absorption of sunlight
What is the 'processor of thermoregulation that determines if a change in
body temperature is needed?
A. Thyroid
B. Pancreas
C. Kidneys
D. Hypothalamus
Answer:
D) Hypothalamus
Explanation:
Arrange the biological terms from smallest to largest.
Ecosystem
Population
Cell
Tissue
Biosphere
Molecule
Organism
Atom
Answer:
atom - molecule- Cell -tissue - organism- population- ecosystem-biosphere
DDT is an insecticide that accumulates in the fatty tissues of animals whose concentration increases with each link of the food chain. Which group of organisms is most likely to accumulate the highest concentration of DDT?
The question is incomplete, the complete question is shown in the image attached
Answer:
D
Explanation:
Pollutants tend to an increase in concentration in the fatty tissues of animals compared to the concentration of the same pollutant in the environment.
Also, tend to increase in the fatty tissues of organisms at each trophic level.
Hence, as a result of this, the highest concentration of the insecticide is accumulated by the organisms at the highest level of the food chain. So, the tertiary consumers accumulate the highest concentration of the insecticide.
The arctic fox has a diploid number of 50 an arctic fox was forming gametes by meiosis, how many chromosomes would be visible in prophase 17 Are the chromosomes replicated or non-replicated?
a. 2. 50; unreplicated
b. 28; replicated
c. 100, replicated
d. 25: unreplicated
e. 6.50; Replicated
Answer:
50 visible chromosomes and replicated.
Explanation:
Diploid number 50Haploid number 25When we talk about the cell cycle, we refer to the interphase and the cell division (mitosis or meiosis).
Interphase is composed of stages G1, S, and G2. During the S stage, the DNI replication process occurs. This is the only stage in which the DNI molecule replicates. The synthesis of histones and other associated proteins also occurs.
Meiosis occurs after the interphase is over.
Meiosis produces four daughter haploid cells (n) from a diploid germ cell (2n). Each daughter cell is haploid because they have half the number of chromosomes of the original one.
At the beginning of prophase 1, DNI is condensed in a well-defined chromosome formed by two sister chromatids joined by a centromere. Each chromosome carefully pairs with its homologous chromosome. Homologous chromosomes aline together to make the crossing-over possible, the stage where they interchange their parts.
The whole set of chromosomes is present in prophase 1. The reduction occurs later.
So if the germ cell has 50 chromosomes, the same 50 will be visible during prophase 1. DNA has already been replicated during the S stage of interphase.
