Answer:
lenses can be used for diffrent types of surgery
Bromine is a liquid at room temperature. The volume of a sample of bromine is measured in a 50 ml beaker and a 100 ml beaker. How will the two
measurements compare?
A. The volume of bromine will be larger in the 100ml beaker.
B. The volume of bromine will be smaller in the 50ml beaker,
C. The volumes will be the same.
D. Both A and B
The actual volume of bromine in each beaker will be same only the difference in height will be comparable. Therefore, option (C) is correct.
What are the properties of liquid ?A liquid's attributes are;
1) Compared to the volume occupied by a gas, the volume of a liquid is relatively stable at conditions that allow it to remain in the liquid state.
2) A liquid will take the form of the container it is placed in.
3) A liquid's surface in a container must be flat for the attraction forces between its molecules to be in equilibrium both at the liquid's surface and within its body.
Therefore, there will be variations in the measured height of the same volume of bromine in each beaker given that the volume of the bromine is measured in a 50 ml beaker and a 100 ml beaker.
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Why can smaller cells diffuse oxygen and nutrients at a faster rate?
small surface area to volume ratio
large surface area to volume ratio
large surface area
more volume than surface area
Answer:
A further increase in the size of a cell could result in a surface area too small for adequate exchange of materials.: A large surface to volume ratio means that a small amount of living matter has a large surface through which nutrients, oxygen and wastes can diffuse.
A dog breeder is looking into purchasing a 3 year old male dog for her business. A breeder online is advertising purebred males for $700. What would you suggest the breeder do before she purchases this dog?
Answer:
The dog breeder to check for all the details that meets her requirement of dogs.
Explanation:
A dog breeding is the practice of mating dogs. In the context, it is given that a dog breeder wants to purchase a male dog of three year old for her business and she founds an advertisement on the net about a purebred males that costs $700. Now before buying this purebred male dog, the dog breeder should first of all check whether the seller who is selling online is a licence breeder or not.
The dog breeder should also check whether the dog is a purebred or not and should also find out the actual age of the dog. The health of the dog should be checked by an professional vet before buying the dog.
The selling of dogs, either a hybrid or a purebred costs differently. An individual should check the license and health of the dogs before purchasing.
In the given example, the dog breeder is trying to purchase a three-year male dog. She saw an advertisement that the male dog is available at the rate of dollars 700.
Before purchasing the dog, the breeder should check:
the authenticity of the advertisementrespective seller details and valid contact information the genotype of the dog as claimed purebred, and the health of the dog from a professional veterinarian.
Thus, the breeder should check all the authenticity of the dog and its health.
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Horizontal moves occur along plate margins
A: True
B: False
1) In pea plants, purple flowers are dominant to white flowers. If two white flowered plants are crossed,
what percentage of the plants will be purple?
Explain your reasoning using a punnett square and a short written explanation.
Answer:
all white
If students are stuck on this one, advise them to make a "key" to help them sort it out.
PP = purple, Pp = purple, pp = white
Explanation:
How does a crater formed by the impact of a meteorite differ from a crater formed by volcanism?
Answer: Whereas volcanic craters arise from deep inside the planet, impact craters originate in outer space.
Explanation:
Cindy/was diagnosed with anemia recently, because her physician found that her blood contains a lower count of red blood cells than normal. 4 A) What is anemia's immediate impact on gas exchange?
Answer:
The correct answer would be - a decrease in the numbers of RBCs will lead to a decrease in the ability for gas exchange in a person.
Explanation:
In the case of anemia, there would be a decrease in the number of RBCs that might be due to increased destruction of these cells, or low production of RBCs, that transporting oxygen and carbon dioxide affects the ability for gas exchange in an individual.
RBCs carry and transport oxygen to various body parts and then carry back carbon dioxide from different parts of the body to the lungs for gaseous exchange but with less number of RBCs leads to impair or decreased gas exchange in the case of anemia.
Choose all the answers that apply.
Chromosomes _____.
are tight coils of DNA
are carried on genes
always occur in pairs
can be analyzed in a karyotype
carry thousands of genes
Answer:
are tight coils of DNA
carry thousands of genes
Explanation:
Answer:
1,5
Explanation:
Classify photosynthesis and cellular respiration as endergonic or exergonic. Explain how you know.
Explanation:
photosynthesis is an endergonic process as it involves the absorbtion of energy (in the form of sunlight), while cellular respiration is an exergonic process as it involves the release of energy in the form of ATP molecules-the energy currency of the cell.
C. _____________________ store food or pigments.
Answer:
Plastids
Explanation:
please help me...
.........
Answer:
1. Ribosomes
10. Osmosis
11. Cell membrane
12. Solvent
13. Cytoplasm
15. Organ
16. Permeable
17. Specialized cells
18. Solute
19. Active transport
2. Electron microscope
3. Organelles
4. Mitochondria
5. An Organ system
6. Optical microscope
7. Tissue
8. Concentration gradient
9. Nucleus
14. Diffusion
What is the graphical representation of age structure known as?
OA.
age group
OB. age graph
Oc. age scale
OD
age pyramid
Answer:
The graphical representation of the age structure is known as age pyramid (option D).
Explanation:
The age pyramid or more properly called population pyramid groups all the individuals of a population, distributing them by age and sex. The name is due to the fact that, in general, the bar graph resembles a pyramid.
The age groups are distributed in the pyramid by age from lowest (bottom) to highest (top), with the sexes forming the sides of the pyramid.
In emerging countries the population is relatively young, which makes the base of the pyramid wide, narrowing as it moves up to the upper age groups.
Age group, age graph or age scale do not correspond to the population graph where the age and sex structure of a population are expressed.
Answer:
Option D (i just took the test)
Explanation:
If a cell normally has 16 chromosomes goes through Meiosis, how many
chromosomes will be in each cell at the end?
Answer:
16/2= 8
Explanation:
Scientists believe the inner core of the earth is...
A. Liquid metal
B. Somewhat melted rock
C. Solid iron and nickel
1. What are the four levels of organization in our bodies, from smallest to largest?
(smallest)
>
(largest)
Answer:
Cells
<
Tissues
<
Organs
<
Organ system
Answer:
cell, tissue,organ, system,these are the four level of organization in our body,from smallest to largest
CAN SOMEONE PLEASE HELP ME WITH THIS PLEASE I WANT TO PASS!!!
Answer:
true
Explanation:
Answer:
its true if they do not move locations so that answer is kinda tricky id choose true tho
Which of the following are examples of stimuli?
Check all that apply.
-the strong smell of a woman's perfume
-the sour taste of a lemon
-pinching your skin
-dimming the lights in a room
-having your back massaged
Answer:
The answer is all of them
Explanation:
This is the answer because I’m a genius. You’re Welcome
Examples of stimuli are the strong smell of a woman's perfume, the sour taste of a lemon, pinching your skin, dimming the lights in a room, and having your back massaged. The correct options are a, b, c, d, and e.
What are stimuli?Humoral stimuli, hormonal stimuli, and neurological stimuli are the three basic types of stimuli that cause the endocrine glands to produce and release hormones.
With changes in the concentration of extracellular fluids, the humoral stimulus governs hormone release.
The strong smell stimuli the sense organs and sour taste stimuli our tongue and pinching in the skin gives stimuli to obtain that someone pinched pour skin
The neural stimuli allow hormone production straight from the glands.
Therefore, the correct options are a, b, c, d, and e.
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In the laboratory, yeast cells are usually grown at a temperature of 25oC. A scientist wanted to determine if yeast cells would reproduce faster or slower when the temperature was dropped to 15oC. The same number of yeast cells were placed in the same medium with the same amount of nutrients. One sample was kept at 25oC and the other one was kept at 15oC. The number of yeast cells was counted every hour for an eighteen hour period.
Answer:
This question is incomplete, however, it is asking to identify the following variables:
Independent variable: Temperature
Dependent variable: Number of yeast cells
Constants: same amount of nutrients, same number of yeast cells, same medium
Explanation:
- Independent variable is the variable that the experimenter changes or manipulates in order to bring about a measurable effect. In this experiment, the TEMPERATURE at which the yeast are kept is the independent variable.
- Dependent variable is the variable that responds to the changes made to the independent variable. It is the variable that is measured by the experimenter in the experiment. In this case, The NUMBER OF YEAST CELLS was counted, hence, it is the dependent variable.
- Constants are variables that are kept unchanged or same for all groups by the experimenter in order not to influence the experiment's outcome. In this case, the CONSTANTS are: same amount of nutrients, same number of yeast cells, same medium etc.
Please help me I promise to mark u the brainiest and give you 40 points please can somebody help me!!
How does genetic variation allow humans to survive long-term?
Which type of reproduction is responsible for genetic variation?
Answer:
Because natural selection acts directly only on phenotypes, more genetic variation within a population usually enables more phenotypic variation. Some new alleles increase an organism's ability to survive and reproduce, which then ensures the survival of the allele in the population. Sexual reproduction promotes genetic variation by producing different gene combinations. Meiosis is the process by which sex cells or gametes are created. Genetic variation occurs as alleles in gametes are separated and randomly united upon fertilization.
____ are unicellular organisms with no nucleus that can cause diseases and pain with toxins.
word bank: protists, antibiotics, infectious, bacteria, pathogen, viruses, fungi, vector, vaccine.
Choose THREE human activities that have a negative impact on the
biodiversity within Amazon rainforests.
A
captive breeding of organisms
B
change in the land-use pattern
С
exploitation of available resources
D
Introduction of conservative measures
E
introduction of invasive species
restoration of degraded land
Answer:
The 3 would be the following:
A
captive breeding of organisms
E
introduction of invasive species
restoration of degraded land
what does a Cell membrane look like
The cell membrane is not a solid structure. It is made of millions of smaller molecules that create a flexible and porous container.
Explanation:
One biotic factor of a freshwater pond would include the
A) temperature of the water
B) algae growing in the water
C) mud on the bottom of the pond
D) amount of light penetrating the water
(First person who answer’s gets brainly plz answer quickly, and no trolling.)
Answer:
B. algae
Explanation:
biotic factor means something alive is in the factor. all the others are abiotic factors
The biotic factor is a living factor providing a source for ecosystem development, hence option b algae in the water are the correct option.
What is a biotic factor of a freshwater pond?A biotic factor is a live entity that influences its surroundings. Aquatic plants, fish, amphibians, and algae are all examples of freshwater ecosystems.
A biotic factor is a live entity that influences its surroundings. Aquatic plants, fish, amphibians, and algae are all examples of freshwater ecosystems.
Turbulence, temperature, water clarity, habitat size, and water depth all influence the structure and function of ponds and lakes. Temperature interacts to affect lake stratification and water circulation.
Therefore algae that balance the aquatic ecosystem is a major abiotic factor, hence option b in water-growing algae is correct.
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These are called multiallelic traits. If GGHHII was crossed with gghhii, what would the genotype for every offspring be?
a. ggGGhhHHIIii
b. GGhHII
c. GgHhIi
d. ggHHii
Answer:
In the crossing of individuals with multiallelic traits, the crossing of a GGHHII individual with a gghhii individual would produce offspring of hybrid individuals for all three traits whose genotype would be GgHhIi (option c).
Explanation:
The individuals GGHHII and gghhii are pure lines for each of the traits —multiallelic traits— they express, one of them having the three dominant traits and the other three recessive traits. The product of crossing two pure lines with dominant and recessive traits is an offspring of 100% heterozygous individuals.
This can be tested by making a Punnett square for this cross:
GGHHII X gghhii
Alleles GHI GHI
ghi GgHhIi GgHhIi
ghi GgHhIi GgHhIi
Thus the offspring in the cross of two individuals, dominant and recessive, for multiallelic traits G, H and I is GgHhIi
HELP ME PLSSSSSSSSSSSSS
Answer:
Explanation:
CAN SOMEONE LOOK ON MINES AND HELP ME LOL
In what stage does DNA synthesis occur? And what gets produced?
S phase; homologous pairs
S phase; sister chromatids
G phase, homologous pairs
G phase, sister chromatids
Answer:S phase
Explanation: or aka the 3rd phase
What was the name of the supercontinent 2million years ago?
3. Which tool do scientists use to classify plants that is based
on a series of paired characteristics?
observation power
dichotomous key
sketch book
plant classification
PLS HELP!!!!!!!!!!!!!!!!!!!!!!!
Answer:
Other organisms were another factor. What kinds of changes in other populations of organisms could be affecting the moths?
Explanation:
umm.
Urea diffused in all regions of the filter during countercurrent flow. Using what you know about the sizes of urea and potassium, which graph shows what would happen to potassium during countercurrent flow?
Answer:Diffuse in all regions of the filter
Explanation:The potassium level in dialysis is often lower than usual because of incomplete equilibration