Answer:
a
Explanation:
The factors that are important for the growth of the organism are the genetics, the response to stimuli, and the access to resources that are present in options A, C, and E.
What are the factors needed for the growth of the organism?Organisms require certain conditions in order to grow, such as foods and nutrients; a source of energy and materials to build new cells and tissues, water, light, proper temperature, oxygen etc, and good health, as organisms that are diseased or injured may not be able to grow and function normally and after all, a suitable environment is needed that includes all these ,each organism has specific requirements for its habitat, such as the right temperature, humidity, and availability of resources and grow when they get it.
Hence, the factors that are important for the growth of the organism are the genetics, the response to stimuli, and the access to resources that are present in options A, C, and E.
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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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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.
HELP ME PLSSSSSSSSSSSSS
Answer:
Explanation:
CAN SOMEONE LOOK ON MINES AND HELP ME LOL
Cross two heterozygous black mice and tell the possible phenotypes and
genotypes in their offspring.
Answer:
The correct answer is -
Phenotype: 3:1 (dominant black mice: recessive brown allele)
genotype: 1:2:1 (purebred dominant : heterozygous: purebred recessive)
Explanation:
In the given question there is a cross that takes place between two heterozygous black mice. LEt assumes B is black which is the dominant allele and b is the recessive allele or brown. As it is given in heterozygous condition black mice are present which means the B is dominant over b.
Now cross:
Gametes: B and b for each mice
B b
B BB Bb
b Bb bb
By the cross, there are two phenotypic offspring that produce 3 black mice out of four and 1 brown or recessive allele out of four
And, genotypically three offspring in the ratio of 1:2:1 (purebred dominant : heterozygous: purebred recessive)
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Paragraph 5 looks at the types of fuels organisms need.Which of the Following statements is true?
1)Humans need a lot of fat molecules to avoid hunger
2)humans need proteins, fatty acids, vitamins & minerals
3)Humans need a constant supply of red meat
4)Humans need to take Vitamin B supplements
Please help & thank You
Answer:
2
Explanation:
Humans need proteins, fatty acids, vitamins, and minerals
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.
PLS HELP!!!!!!!!!!!!!!!!!!!!!!!
Answer:
Other organisms were another factor. What kinds of changes in other populations of organisms could be affecting the moths?
Explanation:
umm.
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.
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:
Weather balloons are sent into the atmosphere to record: (Select all that apply)
humidity
temperature
wind
pressure
precipitation
Answer:
temperature pressure moisture
Explanation:
From my notes hope this helps.
Answer:
temperature pressure moisture
Explanation:
PLEASE HELP ME
Do you think it’s possible to capture energy from photosynthesis for human use? please explain
Answer:
No
Explanation:
I do not think it is possible because plants do photo synthesis in a organelle called chloroplast which humans do not have.
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:
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
I NEED HELP IN ENVIRONMENTAL SCIENCE PLEASE
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:
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 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:
____ 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.
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
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.
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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.
C. _____________________ store food or pigments.
Answer:
Plastids
Explanation:
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
4. Which of the following would be the best control sample for the study?
A)
A sample of water collected just downstream of the southern forest
(B) A sample of water collected just downstream of the housing development
C)A sample of water collected just downstream of the northern forest
D)A sample of distilled water
Answer:
D. A sample of distilled water
Explanation:
You need to have a control sample that hasn't been messed with to see what would happen if you had no reaction to your experiment
A sample is the smaller set of data which a researcher makes use of to complete a research.
As a result of this, we can see that a sample study is the use of these samples to come to a conclusion about the investigation or research which is going on.
Some examples of a sample study include:
Simple random sampling. Systematic sampling. Stratified sampling, etcPlease note that your question is incomplete so i gave you a general overview which would help you get a better understanding of the topic.
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what may happen to the body when exposed to an infection?
A. your body responds by functioning normally
B. the body gets a surge of energy causing a slight increase in body temperature and you feel great
C. your body responds by raising the core body temperature causing a fever.
D. nothing happens when the human body is exposed to an infection
Answer:
C
Explanation:
When an infection is caused the body usually responds in several ways, one way being fever hence flu's and colds
What was the name of the supercontinent 2million years ago?
Occasionally a new resistant strain of pathogen appears. The new strain may spread rapidly. Explain why
Answer:
Antibiotics are not effective for new strains and so new resistant pathogens survive and reproduce, which leads to the increasing population of resistant pathogens and spread rapidly.
Bacteria can evolve and adapt themselves quickly as they are able to reproduce at a fast rate. Mutations of bacteria produce new strains that are resistant to certain antibiotics, such as penicillin, and cannot be destroyed by the antibiotic so they spread more rapidly.
Scientists believe the inner core of the earth is...
A. Liquid metal
B. Somewhat melted rock
C. Solid iron and nickel
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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Which mechanism of transport takes place without expending cellular energy?
Active
Hypotonic
Isotonic
Passive
Answer:
c
Explanation: