Answer:
is created from careful research and logical reasoning
is able to be tested using validated techniques
Explanation:
A hypothesis can be defined as a prediction/expectation that is made in order to understand a phenomenon from the real world. This prediction must be testable and measurable by using the scientific method. In science, a good hypothesis clearly defines the relationships between two or more variables (independent variables and dependent variables). Moreover, a good hypothesis must also be written in simple and precise language, which means that its statements must be understandable (and verifiable) for any person and/or researcher working in the field.
Negative feedback: If blood pressure is high, the blood vessels should
A. dilate (open up more)
B. constrict (get tighter)
Answer:
B. constrict (get tighter)
Explanation:
what is a condensed structure that contains the DNA that are visible during mitosis?
what can be analyzed to determine how many base pairs a segment of dna has?
Which statement is true about photosynthesis?
Select one:
Photosynthesis happens in the mitochondria.
During photosynthesis, energy from the sun is stored in the chemical bonds of a glucose molecule.
One of the inputs of photosynthesis is oxygen.
Photosynthesis releases energy to the environment.
Answer:
during photosynthesis energy from the Sun is stored in chemical bonds of a glucose molecule
Can someone PLEASE answer these questions QUICKLY
How is carbon dioxide affecting climate changes? Is there any evidence showing that humans can work on changing the Carbon Dioxide Levels? Can humans control them?
plsss need help!!
ASAP!!!!!!
Answer:
1.) Carbon Dioxide is being used as a greenhouse, preventing the heat from turning into thermal radiation into space.
How does the DNA sequence in a normal hemoglobin gene compare to a sickle cell hemoglobin gene?
ASAP
Answer:A person with normal hemoglobin has inherited one allele for normal hemoglobin from each parent and so has the genotype Hb A/Hb A. In contrast, a person who has sickle disease has inherited one sickle-cell allele from each parent and has the genotype Hb S/Hb S.
Explanation:
The DNA sequence in a normal hemoglobin gene is different from the hemoglobin gene of sickle cell due to a change in nucleotide base from A to T.
What is Sickle cell anemia?Sickle cell anemia is a group of disorders which cause the red blood cells (RBCs) to become misshapen and break down. It is an inherited group of disorders, in which the red blood cells contort into a sickle shaped cell. The cells die early due to this disorder, leaving a shortage of healthy red blood cells in the blood and can block the blood flow causing pain and crisis.
Symptoms of sickle cell anemia include infections, pain and fatigue.
Genetic studies have shown that the base sequence in the normal hemoglobin (HbA) and the sickle cell hemoglobin (HbS) differs at only a single nucleotide position including a change from an A to a T nucleotide base. This change in nucleotide to one codon results in a single amino acid change in the hemoglobin.
Learn more about Hemoglobin here:
https://brainly.com/question/15011428
#SPJ6
I need help ASAP
Match the following definitions with the correct terms:
1. BB or Bb
2. purple-flower or white flower
3. Bb
4. Used to predict the possible genotypes and phenotypes from a genetic cross
Options to choose from:
- Genotype
- Heterozygous
- Phenotype
- Punnett square
Help PLEASEEEEEE. WHAT DO I PUT IN THE GRAPH !!!!!111
Which of the following pairs is unrelated?
O Sugar-carbohydrate
O Fat-lipid
O Amino acid-protein
O Starch-nucleic acid
What is the function of spindle fibers during cell division?
1 point
What chemical compound is responsible for the rotten egg smell that is
typical of seal farts?
Hydrogen disulphide
Hydrogen monoxide
Hydrogen peroxide
Hydrogen chloride
Answer:
Hydrogen disulfide
Explanation:
Hydrogen disulfide , which is responsible for the rotten-egg scent, is toxic rather than simply smelly, if inhaled at concentrations above 700 parts per million.
It can be present at very low concentrations well below those considered to induce health effects. The scent of sulfide hydrogen does not affect your well-being.
Answer:
Hydrogen monoxide
Explanation:
It is very toxic to smell in farts
Which part of meiosis mirrors mitosis?
Name the 2 stages of photosynthesis
Answer:
Light dependent reaction and the Calvin cycle
Explanation:
pls mark me brainliest
1. A mixture is a blend of two or more substances that have NOT
A. combined chemically
B. dissolved
C. been mixed together
Please answer as soon as possible !!
Answer:
A. combined chemically
Explanation:
Why is it a good idea for humans to create models of how populations are changing?
What do models help us do?
Hemoglobin is a molecule in vertebrates that carries oxygen through blood from the lungs to other parts of the
body.
Based on its function, hemoglobin is an example of which type of macromolecule, and why?
А. It is a lipid because some lipids travel through blood.
B. It is a lipid because some lipids form the membranes of lung cells.
C. It is a protein because some proteins are responsible for transporting substances.
D. It is a protein because some proteins are responsible for regulating an organism's activities.
what is a tool that shows phenotypes of genetically related family members
Answer: A Tool that Shows Phenotypes of Genetically Related family Members, Are A pedigree.
Explanation:
How many X chromosomes do males have? _______
Answer:
There are 2 sex chromosomes – X and Y. Females have 22 autosomes and two X chromosomes, i.e., 22 + XX, while males have 22 autosomes and an X and Y chromosome each, i.e., 22 + XY. hope it helps.
basically 22
Explanation:
Answer:
one
Explanation:
females have two and males have one
Complete a Punnett square that shows a test cross for a tall pea plant (RR x rr). Place the plant to be tested at the top of the Punnett Square.
I'm not 100% sure what you're asking but is this what you mean?
All plants are tall.
r r
R Rr Rr
R Rr Rr
Answer: In pea plants, a tall stem is dominant (R) over a short stem (r).
This means the genotype of the tested plant is RR so that one would be on top of the Punnett's square.
The Punnet's square would be as follows:
(I got this right on my assignment)
What is density?
Q1 options:
the amount of salt in water
the amount per unit volume of a particular material
a measure of salinity
the weight of water
Q2 (0.25 points)
As the amount of salt in water increases, the___________ of the water increases.
Question 2 options:
humidity
temperature
size
density
Q 3 (0.25 points)
Deep, cold water is the __________. Warm, shallow water is the ___________.
Question 3 options:
densest; densest
densest; least dense
least dense; least dense
least dense; densest
Question 4 (0.25 points)
Which layer of the ocean is the least dense?
Q4 options:
they are all the same
closest to the ocean floor
closest to the surface
middle layer
Answer:
Q1: C. salinity Q2: density Q3: B. densest, least dense Q4: C. closest to the surface
Explanation:
Q1: The term "salinity" refers to the concentrations of salts in water or soils. Q2: when the amount of salt in the water increase which usually gathers mostly at the shallow top of the ocean which is where the warm shallow water gathers, when the warm water has enough salt in it, it sinks to a deeper location causing its density to heighten and that's also what makes it cold. Q3: When layers form in the ocean, the water containing the most dissolved salt tends to form the bottom layer. The water having the least amount of salt is usually on top, because it is the least dense. As more solids are dissolved in water, the water becomes more dense. Q4: Cold water has a higher density than warm water. Water gets colder with depth because cold, salty ocean water sinks to the bottom of the ocean basins below the less dense warmer water near the surface. I really need brainliest please do so.
Answer:
Here so you can get brainlest :)
Explanation:
14. Scientist wanted to know if temperature effected the movement of
blackworms. What is the dependent variable?
-Temperature
-Movement
-Amount of Blackworms
-Scientists
Answer:
movement
Explanation:
the movement depends on the temp.
Answer:
movement
Explanation:
i hope its helps u
systems of body which holds sperm and eggs
Answer:
i- are u
Explanation:
What is Lucy? This is for Science they said it’s a gorilla I think I just need confirmation.
Which of the following lives in the pelagic zone?
sea birds
crabs
plants
fish
The _____________ is a gel-like fluid that fills plant and animal cells. It holds the organelles in place and gives each cell its shape. * 1 point
Answer:
cytoplasm
Explanation:
The cytoplasm's job is to hold organelles in place and it is a jelly-like substance.
HELP ASAP!!!
Radiation continues to be detected in the area surrounding the abandoned
nuclear power plant at Chernobyl, which experienced a nuclear accident in
1986. How does this fact illustrate a concern that people have with nuclear
energy as a source of electricity?
O A. It shows that any type of radioactive material will have harmful
effects on organisms in the environment.
O B. It shows that chain reactions are still happening in the reactors at
the nuclear power plant.
O C. It shows that radioactive materials released at nuclear power
plants remain radioactive and persist in the environment.
O D. It shows that nuclear power plants always leak a small amount of
radiation into the environment.
Answer:
C)
Explanation:
I hope this helps :)
Answer:
its D.
Explanation:
just took quiz
PLEASE HELP, WILL MARK BRAINLEST TO WHO ANSWERS FIRST WITH THE RIGHT ANSWER
The diagram below shows the sequence of events and processes which resulted in the origin of life.
Picture shows a flow chart with a rectangle labeled non-living matter at the top, an oval labeled A below it, and a rectangle labeled appearance of bacteria at the bottom.
Which of these processes best fits the oval labeled A?
chemical evolution
biological evolution
atmospheric transformation
geological transformation
Answer:
chemical evolution
Explanation:
This type of evolution is what we believe started the origin of life. Chemical evolution is when something changes to have different abilities (which in this case would be true).
Have a great day everybody!
The primary reason for cell division, is to
A Grow
B Repair damage
C Replace themselves
D All of the above
First to answer gets brainliest plz try on it though
Answer:
A
Explanation:
does coal, solar energy, hydroelectric power, or wind power take the most power
Answer:
wind power
Explanation:
on average onshore winter buying with a capability of 2.5 - 3 MW can produce more than 6 million kwh in a year minus enough to supply 1500 average EU household with electricity.
