Constants never change.
Controls typically don't change or they are done by standard means
(like in an experiment where you water plants with sodas, the plant you use water with is the control)
Dependent variables are the outcome of the experiment. This is the result of changing something.
Independent variables are what you are testing. A independent variable is something that is intentionally altered.
easy way to remember it is that dependent variables depend on what other variables are. so you cant change a dependent variable, but you can change the other variables.
Tibetans' physiological adaptations make them less likely to suffer from (1 point)
O blood clots.
O altitude sickness.
O pulmonary hypertension (or high blood pressure).
O heart attacks.
Answer:
1. More efficient hemoglobin in the blood
2. Altitude sickness*
3. Hotter temperatures during the summer months...
4. Lower oxygen levels.
5. The positive effects outweigh the negative effects in certain environments.
Explanation:
Hopefully, this helps someone out ♡
High Altitude Living Quick Check
Tibetans' physiological adaptations make them less likely to suffer from pulmonary hypertension (or high blood pressure). So, the correct option is C.
What do you mean by Adaptations?
Adaptations may be defined as the evolutionary process where an organism becomes better suited to its habitat, in order to survive and reproduce in it.
Tibetans are adapted to high altitudes by producing fewer red blood cells. They have greater hypoxic and hypercapnic ventilatory responsiveness. They have large lungs, and greater lung diffusing capacity. This leads them less likely to suffer from pulmonary hypertension.
Therefore, Tibetans' physiological adaptations make them less likely to suffer from pulmonary hypertension (or high blood pressure).
To learn more about Tibetans, refer to the link:
https://brainly.com/question/1332383
12. Which color of visible light extends to the deepest depth in the open ocean?
O A, Blue
O B. Yellow
O C, Red
OD. Orange
Answer: Blue is the answer
A vaccine used against an infectious disease may contain??
Answer:
antigens
Explanation:
a vaccine may contain that
Please hurry!!! and help!!
Best answer gets marked Brainliest!!!!
Question 1
Which statement best describes adaptation?
A)Adaptation is the process of species gradually changing over many generations
B)Adaptation is process of plant gradually changing over time
C)Adaptation is a trait that helps an organism survive and reproduce
D)Adaptation is a difference between individuals of the same species
Answer:
C
Explanation:
Process of elimination
A= Evolution
B= Should have nothing to do with plants
C= Makes sense
D= Variation
Please give me 'Brainliest'
Explain how demagnetizing a magnet (or temporary magnet) affects the domains.
Answer:
So, heating a magnet disrupts the domain walls and it becomes easy for the magnetic domains, which are ordinarily lined up, to rotate and become misaligned. They are now less aligned and point in the opposite direction to their neighbors, causing a decrease in the magnetic field and loss of magnetism.
Which of the following might be affected by the loss of a plant species?
a. Only organisms that feed directly off the lost plant species will be affected.
Other plant species will be affected, but no other organisms will.
Multiple organisms may be affected by the loss of a plant species.
d. No other organisms would be affected.
Please select the best answer from the choices provided
ОА
OB
ОС
OD
[tex]\sf\purple{C.\:Multiple \:organisms\: may\: be\: affected \:by \:the \:loss \:of \:a \:plant\: species.✅}[/tex]
[tex]\circ \: \: { \underline{ \boxed{ \sf{ \color{green}{Happy\:learning.}}}}}∘[/tex]
Question 9 (2 points)
The four major biogeochemical cycles are the carbon cycle, the water cycle, the
____ and the _____. Fill in the blanks
Answer:
Nitrogen and the Oxygen cycle :)
Explanation:
Natural selection is best described as
a. disruptive selection
b. stabilizing selection
С. a mechanism of evolution
d directional selection
Achieving sustainability of diverse ecosystems and resources in the ocean depends upon collective and individual actions. Describe what steps you would take to achieve this sustainability as a citizen.
Answer:
As a citizen, you would do things like help clean up the beaches, not use things that could pollute the ocean as much, or even spread awareness about the ocean’s pollution.
Explanation:
The role of the citizen is to help keep the ocean well in any way they can.
Match each step of the scientific method with its description.
Answer:
Sorry but
Explanation:
You didnt add an image its just the text, sorry
Match the following
1. If not properly disposed of and treated, this can spread deadly bacteria.
soil
2. Drinking water that is contaminated by bacteria or chemicals can cause this.
100 gallons of water
3. Water pollution affects the earth's water supply as well as this.
water
4. The average person in America uses this each day.
water cycle
5. This occurs when livestock waste or crop chemicals enter the water supply.
sewage
6. This is the constant movement of water between the earth and the atmosphere.
agricultural pollution
7. Every living thing on earth needs this.
diarrhea
Answer:
1. Sewage
2. diarrhea
3. atmosphere
4. 100 gallons of water
5. agricultural pollution
6. water cycle
7. water
Explanation:
Answer:
1. Sewage, 2. Diarrhea, 3. Agricultural Pollution, 4. 100 Gallons of Water, 5. Soil, 6. Water Cycle, 7. Water. I took it on Edge so I know the answer. I hope you and everyone reading this have a good day!
What is the difference between convergent plate boundaries that have plates of the same density to convergent plate boundaries with plates of different densities.
Answer: If they have the same density, they will be pushed up together creating a mountain. If the plates have different density then the one with more density overlaps the other.
Explanation:science
PLEASE HELP, 20 POINTS! An example of meiotic cell division is shown below. In the diagram, genetic material is shaded according to the parent from which it was inherited.
(diagram shown below)
Based on the diagram, which processes contributed to the genetic diversity of the daughter cells?
A.
cytokinesis and differentiation
B.
differentiation and independent assortment
C.
independent assortment and crossing over
D.
crossing over and cytokinesis
Answer:
d, crossing over and cytokenesis
Answer:
It would be c. independent assortment and crossing over
Explanation:
Nonvascular plants have never evolved to the size of vascular plants, most likely because they lack Select one: a. a photosynthetic mechanism. b. an efficient mode of respiration. c. an efficient system for conducting water and minerals. d. nutrient and water absorption mechanisms. e. They lack all of these choices.
Answer:
The correct answer is c. an efficient system for conducting water and minerals.
Explanation:
Non-vascular plants lack the internal tubes or vessels that carry water and minerals or nutrients through the entire plant. Most of them are found in humid or submerged places, since this type of environment allows them to absorb water through the surface of their tissues. Non-vascular plants do not grow very tall due to the lack of structures normally associated with vascular plants. Non-vascular plants lack specialized vascular tissue (xylem and phloem) for conduction and internal support of water and food. Metabolites and other nutrients are transferred between and within cells by osmosis, diffusion, and cytoplasmic flow.
The typical (diploid) cells of the body have 46 chromosomes; how many
chromosomes does each gamete have?
46
23
184
46 pairs
Answer:
if a person has 45 chromosomes they will get down syndrome
Explanation:
Imagine researchers following up on seeley's study brought some flat periwinkles appledore island into the lab to test for heritability. What results could they observe that would support the hypothesis that shell thickness is heritable in these snails?
Answer:
If thick-shelled snails have thick-shelled offspring and thin-shelled snails have thin-shelled offspring then this is good evidence that shell thickness is heritable.
Explanation:
Inheritance is a natural mechanism by which genetic information contained in the DNA sequence is passed from parents to offspring. Moreover, heritability is a measure of the genetic influence on the variation in a particular phenotypic trait (e.g., height, eye color, etc.) between individuals in a population. The values of heritability for a particular phenotypic trait range from zero (when all variation in a population comes from environmental factors and therefore is not heritable) to one (when all variation in a population comes from genetic factors and therefore is heritable). For example, in this case, if parental snails always have offspring with the same phenotype for the trait ‘shell thickness’, it would indicate that the heritability for this trait is equal to one, thereby evidencing that all of the variability for the trait 'shell thickness' comes from genetic differences.
3. Which statement describes a difference between
the nitrogen and carbon cycles?
a. The carbon cycle involves only plants.
Ob. The nitrogen cycle requires a process
called nitrogen fixation that is carried out by
certain bacteria.
O c. The carbon cycle requires freezing
temperatures.
d. The nitrogen cycle occurs entirely in
the ocean.
Answer:
a.
Explanation:
The carbon cycle involves only plants. The nitrogen cycle requires a process called fixation, which makes the nitrogen more usable for living organisms. The carbon cycle requires that temperatures be above 27 °C (80 °F).
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The statement that best describes a difference between the nitrogen and carbon cycles is the nitrogen cycle requires a process called nitrogen fixation that is carried out by certain bacteria.
What are the main differences between the nitrogen and carbon cycles?The main difference between nitrogen cycle and carbon cycle is that nitrogen cycle describes the conversion of nitrogen into multiple chemical forms and its movement between the different ecosystems. Whereas the carbon cycle describes the movement of carbon and its multiple chemical forms between the atmosphere, lithosphere and hydrosphere.
Microbes are involved in the nitrogen cycle process. Both plants and animals participate in the carbon cycle.
Thus, the statement that best describes a difference between the nitrogen and carbon cycles is option (b).
Learn more about nitrogen and carbon cycles, here;
https://brainly.com/question/1615727
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3.1
Suggest which leaf carries out more photosynthesis and explain why.
Explanation:
Leaf that are really green, because they contain Lots of chlorophyll in the chloroplast which is the main site for photosynthesis
As a population grows past the ecosystem's ______ the size of the population will _____ until the size of the population stabilizes at a constant level
Answer:
carrying capacity , increase
Explanation:
Up to the the population carrying capacity the the population will increase to give a perfect balance and when the population will be much then the population will decrease.
what describes when energy is released from an ATP molecule?
Answer:
hydrolysis
Explanation:
The process of hydrolysis is when one phosphate group is removed by breaking a phosphoanhyride bond. Then energy is released and ATP converts into ADP.
What is the function of RNA in a cell?
Answer:
The central dogma of molecular biology suggests that the primary role of RNA is to convert the information stored in DNA into proteins.
hope this helps
have a good day :)
Explanation:
Answer:
The primary functions of RNA are as follows:
Facilitate the translation of DNA into proteins
Functions as an adapter molecule in protein synthesis
Serves as a messenger between the DNA and the ribosomes.
They are the carrier of genetic information in all living cells
Promotes the ribosomes to choose the right amino acid which is required in building up of new proteins in the body.
Explanation:
You have identified a new, recessively inherited trait in dogs: floppy ears. To determine if the gene for Floppy Ears is X-linked or not, you should:
Answer:
Cross a non-floppy-eared male to a floppy-eared female and observe if males offspring have the floppy ear trait
Explanation:
Mammals (e.g. dogs) have two sex chromosomes: X and Y. In the XY sex-determination system, the female gamete (i.e., the ovum) contributes to an X chromosome, while the male gamete (i.e., the sperm) contributes either an X chromosome or a Y chromosome: normal females are XX and normal males are XY. In consequence, a male always inherits its X chromosome from the mother and its Y chromosome from the father. In this case, the presence of the floppy ear trait in all males F1 offspring obtained by crossing a non-floppy-eared male to a floppy-eared female indicates that this trait is linked to the X chromosome because males inherit the floppy ear trait from the mother.
Two dogs–a boxer and a poodle–were the first to have their entire genomes sequenced. The dog genome contains 2.8 billion2.8 billion base pairs across 3939 pairs of chromosomes. They have 19,00019,000 protein-coding genes, most of them with close counterparts in other mammals, including humans. What is the total number of chromosomes in a dog?
Answer:
78 chromosomes
Explanation:
Since the number of chromosomes in a dog are diploid, we have 2n chromosomes where n = number of chromosome pairs.
Since n = 39.
The number of chromosomes is 2n = 2 × 39 = 78 chromosomes
So, a dog has 78 chromosomes.
How can you tell from a food web which organisms will have the greatest biomass?
Answer:
How can you tell from a food web which organisms will have the greatest biomass?
The tropic level contains the greatest biomass in most ecosystems is producers. This occurs because producers get their energy from the sun, the sun is the most available resource, so there are the most at that level.
Explanation:
I hope that this answer has helped you to more thoroughly understand your question asked. If you have any further questions, please do not hesitate to ask them below.
Have a great rest of your day/night!
names of five natural things from the word grid given below
AS T R PILM
o w LS PR P 0
RO AM
MS O LILIN
ART OTWAN
MIT
THE
IN
0
01
OTA NIMA
NA 0 OM
Q
RIO
R
LISI N
Answer:
AIR
SEA
ANIMAL
PLANT
MONTH
Explanation:
These are the least I could get
Please don't use this question for points or you'll be reported I am timed can you please help?
The table below shows data collected in an experiment about gases in inhaled and exhaled air. Percentages of Chemicals in Air O2 CO2 Inhaled 20.94% 0.03% Exhaled 16.37% 4.46% Suppose a similar experiment was set up to measure changes in air composition immediately before and two days after twenty potted plants were placed in a clear, sealed aquarium near a window. Percentages of Chemicals in Air O2 CO2 Before 20.94% 0.03% After ? ? How would the second row of values in the plant experiment most likely compare to the second row of values in the original experiment? Oxygen levels would be higher, but carbon dioxide levels would be lower. Carbon dioxide levels would be higher, but oxygen levels would be lower. Oxygen levels would be higher, but carbon dioxide levels would be the same. Carbon dioxide levels would be higher, but oxygen levels would be the same.
Answer:
Option A is the answer
Explanation: I took the test
Answer: A
Explanation: Edge 2020
Where does most of the water that evaporates from the Earth come from?
A.
Oceans
В.
ponds
C.
rivers
D.
lakes
Answer:
A
Explanation:
Reproductive system
Explain How does a fetus get nourishment up
until the time it is born?
Answer:
The fetus gets it's nourishment through the umbilical cord that is connected to the mother's uterus
1c) If the amino acid sequences in the proteins of 2 organisms are similar, why will their DNA also be similar?
Answer and Explanation:
Because the DNA sequence determines a protein's amino acid sequence, a gene shared by two closely related organisms should have similar, or even identical, amino acid sequences. That's because closely related species most likely diverged from one another fairly recently in the evolutionary span. Thus, they haven't had as much time to accumulate random mutations in their genetic codes.
Organisms can pass on genetic information through asexual or sexual reproduction. Which of the following statements best describes how asexual reproduction differs
from sexual reproduction?
During asexual reproduction, offspring receive DNA from several parents rather than just one parent.
During asexual reproduction, offspring receive DNA as individual atoms rather than genes.
During asexual reproduction, offspring receive DNA from one parent rather than two.
During asexual reproduction, a parent cell divides by meiosis rather than mitosis.