The types of stars that we should not search for life around the Universe are O and B type stars.
What is a star?A star is a celestial body capable of producing huge amounts of heat and radiation in the form of light.
An O-type star (spectral class O) is a blue and/or white star that is characterized to be very hot and brilliant.
B-type stars are also luminous and they can be blue, but they can be differentiated by O-type stars by their spectra.
Learn more about O-type stars here:
https://brainly.com/question/1253494
In an experiment investigating the time needed to kill a certain type of bacteria at 100°, which of the following variables need to be controlled?
time only
temperature and type of bacteria only
temperature only
time and temperature only
Baed on the nature if the investigation, the temperature and type of bacteria need to be controlled in this experiment.
What are variables in an experiment?Variables are quantities whose values determine the result or can affect an experiment.
Variables may either be:
dependent variableindependent variable constant variableSince the experiment is investigating the time needed to kill a certain type of bacteria at 100°, the temperature and type of bacteria need to be controlled.
Learn more about variables at: https://brainly.com/question/347133
An antigen has invaded a mammal's body. Specific immune cells engulf and ingest it. Some of the digested pieces are displayed on the cells' bodies. What happens next?
Answer:
The correct answer is A- B cells are activated and release antibodies
Explanation:
When an antigen invades a mammals body, specific immune cells engulf and ingest it. Some of the digested pieces are displayed on the cells bodies, the next step will be that B cells are activated and release antibodies.
Vitamin D regulates Multiple Choice blood calcium levels. Fluid balance. Oxidation and reduction reactions. Energy metabolism
Vitamin D help to regulate blood calcium levels.
What is Vitamin D?Vitamin D is a group of fat-soluble secosteroids responsible for increasing intestinal absorption of calcium, magnesium, and phosphate, and many other biological effects. In humans, the most important compounds in this group are vitamin D₃ and vitamin D₂. .
It help to absorb calcium and potassium in the body.
Therefore, Vitamin D help to regulate blood calcium levels
who can be titled the brianlist
answer this
Name one organism that is selectively bred.
Answer: Crop plants with better yields. ornamental plants with particular flower shapes and colours. farm animals that produce more, better quality meat or wool. dogs with particular physiques and temperaments, suited to do jobs like herd sheep or collect pheasants.
Explanation: hope it helped :)
8. Choose the best answer. Polar bears have adaptations for swimming long distances. Where is this adaptation found?
O phenotype
O genetic code in RNA
O genetic code in DNA
O genotype
Answer:
a
Explanation:
a is phenotype
Answer:
i think its phenotype
Explanation:
-phenotype is the set of observable characteristics or traits of an organism
List 3 ways the alveoli are built in a specialized way to do their job.
Answer:
Alveoli are tiny, balloon-shaped air sacs. Their job is to move oxygen and carbon dioxide (CO2) molecules into and out of your bloodstream.
Explanation:
what do you think are the odds of getting four tails in a row? Explain your answer.
Answer:
It depends on how many flips you do.
Explanation:
None.
How is oxygen in the air made during photosynthesis?
A. Splitting apart carbon dioxide
B. Attaching oxygen together
C. Attaching water together
D. Splitting apart water molecules
Answer:
D
Explanation:
by process known as photolysis
Is NaCI a diatomic element
Answer:
Yes.
Explanation:
HCl, NaCl, and KBr are all examples of diatomic elements.
You are a genetic counselor. Cherry is looking into her genetic history, and she is asking you to figure out who has or had color blindness by looking at her family tree. The image below shows a pedigree chart, and it represents the inheritance of color blindness through three generations.
Are females #1, #2, and males #1, #2, colorblind or not?
With the information provided it is not possible to determine if females #1, #2, and males are colorblind or not are colorblind (they can be colorblind or carriers).
What a pedigree?A pedigree is a diagram to represent the genealogical relationships within a family and the inheritance of certain traits.
In a pedigree, the presence of a complete shadow figure indicates the presence of the genetic condition.
In this case, the females #1, #2, and males #1, #2, can be either colorblind or carriers (i.e., heterozygous for the trait).
Learn more about pedigrees here:
https://brainly.com/question/3772471
A chronic condition that causes permanent damage to the glomerular membrane, resulting in renal failure is.
Answer:
Chronic glomerulonephritis
Explanation:
hope this helps :)
Which choice best describes a plant cell? A cell that uses sugars.
B cell that has a nucleus.
C cell that has a cell wall.
D A cell that has a cell membrane.
Answer: C
Explanation:
Hello people ~
Differentiate between biotic and abiotic components.
Non-living physical and chemical elements in the ecosystem are referred to as abiotic factors. Typically, abiotic resources are obtained from the lithosphere, hydrosphere, and atmosphere [e.g. water, aer, soil, sunlight, and minerals].
Biotic factors are organisms that are alive or were onse alive in an ecosystem. These are obtained from the biosphere and have the ability to reproduce [animals, birds, plants, fungi, and other identical organisms].
I am joyous to assist you at any time.
Which of the following describes safeguards used in nuclear power plants to protect the environment? I. Radioactive sections of the plant are cleaned every week. II. Cooling the reactor prevents an explosion and leak of radiation. III. A mixture of different forms of uranium prevents explosions.
Answer: Cooling the reactor prevents an explsion and leak of radiation
Explanation:
Answer:
It's one and two
Explanation:
I took the test
What are the two chemical components of chromosomes?.
Answer:
Explanation:
DNA & Protein are the two chemical components of chromosomes that candidate for genetic material
Can someone help me with the entire gizmo?
it’s the natural selection gizmo
Answer:In this simulation, you are a bird hunting for moths.
Explanation:
In this simulation, you are a bird hunting for moths. You can hunt in an area with light-colored trees or dark-colored trees.
HELP ME ASAP!
what is one experinment that is realted to put cabbage water, baking soda, and vinegar experinment and explain why you chose that idea!
In proteins structure determine the what? of a protein
The primary structure of a protein is its amino acid sequence. This drives the folding and bonding of the linear amino acid chain, which in turn determines the unique three-dimensional shape of the protein.
I hope this helps you
:)
HELP!!! will give brainliest!! need answer quickly!! An Ff mouse is bred repeatedly to an ff mouse, producing 500 total offspring. In theory, 250 offspring should be black and 250 should be white, but the actual numbers are 237 black and 263 white. Why does this happen?
Describe the roles of the national and state governments in the amendment process?
Answer:
only three-fourth of states legislatures need to pass an amndment to the constitution
What is the Liquid part of blood called?
Answer:
The liquid portion of the blood is called plasma.
Explanation:
hope this helps.
Which of the following explains Mendel's principle of segregation?
A. During meiosis, gametes are produced with only one copy of each gene.
B. Heterozygous organisms always breed true for a given trait.
C. Genes that are close to each other on a chromosome are often inherited together.
D. An organism must receive only one copy of a recessive gene to show the recessive trait.
Answer:
C. Genes that are close to each other on a chromosome are often inherited together.
Which food chain correctly shows the direction that energy and matter can flow through a temperate forest ecosystem?
a) fruit > insect > sparrow > hawk
b) hawk > fruit > insect > sparrow
c) insect > sparrow > hawk > fruit
d) insect > hawk > fruit > sparrow
Answer:
Fruit comes from plants, which are producers. Insects are primary consumers, sparrows are secondary consumers, and hawks are tertiary consumers.
Explanation:
Hope this helps.
What three things would you take with you during the zombie apocalypse and why?
In order to survive, the basic things needed in a zombie apocalypse is food, water and a self-defense object.
What is a zombie apocalypse?A zombie apocalypse is an imaginary scenario in the future where the dead comes back to hunt the living with the intent to destroy all life.
Since survival is the most important consideration in a zombie apocalypse, one would need these three things:
waterfoodand an instrument for self-defense.Therefore, the basic things needed in a zombie apocalypse is food, water and a self-defense object.
Learn more about zombie apocalypse at: https://brainly.com/question/22997575
rays of the sun hitting your face. is it potential energy kinetic energy or both
Answer:Radiant energy is a form of kinetic energy so it is Kinetic energy .
SOMEONE PLS HELP ME!!!!
Explanation:
sunlight A suntranspiration E soilWhen should dna be replicated? what life events would include dna replication?.
Answer:
During growth and development i.e, as you get bigger because the cells are multiplying in number.
During repair of worn out cells and tissues e.g if you get a cut.
(It also happens in your hair and skin, but, I wouldn't label these as "life events"
Hope this helps(:
What is the maximum number of seeds of any one type that the seed dispensary can hold?.
Answer:
20 seeds of each plant can be held at a time.
Explanation:
:)
What is the temperature and name of the surface ocean current that affects the climate of location E (see map above)?
(1) warm Alaska Current
(2) warm Gulf Stream Current
(3) cool Peru Current
(4) cool California Current
Answer:
it is 4 the cool California Current
Explanation:
The temperature and name of the surface ocean current which affects the climate of the location E is the Cool California Current. Thus, the correct option is 4.
What is the Cool California Current?The California Current is called as an eastern boundary current. The strong current systems which flow along the east side or the boundary of all of the Earth's major ocean basins. These tend to move the water towards the equator, and they are prone to strong upwellings.
The temperature and salinity of the waters of the California current vary with the seasonal variations in the upwelling, insolation, and flow of the water. The maximum range in the temperature and salinity from its northern to its southern end are 48° to 79° F or 9° to 26° C and 32.5 to 34.5 parts per thousand, respectively.
Therefore, the correct option is 4.
Learn more about California Current here:
https://brainly.com/question/377571
#SPJ2
What would happen if there were no predators in the forest? Would the colors of the moths change over time?