4. When does a decay series end?
Answer:
A decay series ends when a stable nuclide is reached - it will no longer spontaneously decay.
Explanation:
When alleles segregate randomly during meiosis it is called:.
Which of these does NOT occur during meiosis?
production of new gene combinations
production of identical gametes
crossing-over of homologous chromosomes
reduction of chromosome number by one-half
How is a facial expression similar to gene expression?
Explanation:
But researchers in Israel have done a study showing that families have characteristic facial expressions, ones even shared by blind members of the families. The results suggests that such expressions may be inherited and thus under some genetic control.
which stem adaptation is most helpful in protecting a plant from disease
Answer:
The outer layer of a plant—analogous to our skin and also called the epidermis—is the first defense to keeping pathogens out.
Explanation:
The epidermis itself is shielded by additional layers on certain plant parts: bark on a tree, a waxy cuticle on leaves. Plants also produce chemicals that are toxic to pathogens or to insects.
chlorophyll is necessary for photo
synthesis
Answer:
Yes
Explanation:
Im doin it rn in edge
Which gland is responsible for the production of testosterone and sperm?.
Answer:
Testicles
Explanation:
male testicles produce testosterone and sperm
what is the function of a chromosome?
What is the connection between genetics and natural selection?.
Why were different organisms
found on each island of the
Galapagos?
A. The islands were far apart geographically
from one another.
B. The climate of the islands varied.
C. Organisms were the same from one island to
the next.
Answer:
Its B
Explanation:
The Climate Of The Islands Varied
Name the organelles.
Answer:
A: Nucleus
B: Cytoplasm
C: Vacuoles
D: Cell Membrane
E: Mitochondria
Explanation:
When the core of a nuclear reactor completely melts, it is known as a (n) _______.
A) Downstream
B) Meltdown
C) Turbine
D) Ethanol
E) Passive solar cooling
F) Utility
G) First Law of Energy
H) Refinery
I) Isotopes
J) Second Law of Energy
Answer:
B
Explanation:
A core meltdown accident occurs when the heat generated by a nuclear reactor exceeds the heat removed by the cooling systems to the point where at least one nuclear fuel element exceeds its melting point. This differs from a fuel element failure, which is not caused by high temperatures.
Answer:B) Meltdown
Hope this helps
Which adaptations allowed reptiles to complete their life cycles on land? an amniotic egg lungs four legs ectothermic metabolism
Answer: The amniotes are distinguished from amphibians by the presence of a terrestrially adapted egg protected by amniotic membranes. The amniotes include reptiles, birds, and mammals. A key adaptation that permitted reptiles to live on land was the development of scaly skin. I hope this helps
Explanation:
An area is described as having mild temperatures in the summer and being cool and rainy in the winter. on a day in may, the area experienced snow. which best describes this day in terms of weather and climate?
select one:
a. the weather was different from the normal climate for the area.
b. the climate was different from the normal weather for the area.
c. weather and climate were different from the normal properties for the area.
d. climate and weather were changing into a new set of normal properties for the area.
Answer:
the answer is a .IAM sure
Select the correct answer from each drop-down menu. a species was added into a particular ecosystem to control the population of a prey species. this method of introducing a new species is called . the population of the added species increased, leading to an imbalance in the ecosystem. this increase happened because .
If a species was added into a particular ecosystem to control the population of a prey species, then this method is called biological augmentation.
What is biological augmentation?Biological augmentation is a process where a newly introduced species increase the number of individuals of another species.
In this case, the population of the added species increased, leading to the competition for resources increased in the ecosystem.In conclusion, If a species was added into a particular ecosystem to control the population of a prey species, then this method of introducing a new species is called biological augmentation.
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The paris agreement intends to direct money toward limiting climate change
and lowering greenhouse gas levels. which groups are likely to benefit from
the paris agreement? select the three correct responses.
o a. solar power companies
o b. hydroelectric dam engineers
c. petroleum companies
d. hydraulic fracking operators
e. geothermal reservoir drillers
please help.
Answer:a,b,
Explanation:
The groups which are likely to benefit from the Paris agreement are solar power companies, and hydroelectric dam engineers. Thus, option A and B are correct.
What is Paris Agreement?The Paris Agreement deals with production of those types of energy which is clean and which don't emit (or emit very less) green house gasses, the root cause of climate change and global warming.The term climate change has to do with the alteration of weather patterns owing to the release of harmful gases commonly called greenhouse gases.
The main goal of the Paris Agreement is to strengthen the global response to the threat posed by climate change by limiting the rise in global temperature this century to well below 2 degrees Celsius above pre-industrial levels and to pursue efforts to further limit the temperature increase to 1.5 degrees Celsius.
Therefore, The groups which are likely to benefit from the Paris agreement are solar power companies, and hydroelectric dam engineers. Thus, option A and B are correct.
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Which of these physical structures in animals is similar to this structure in plants?
A) Exoskeleton
B) Ovaries
C) Scales
D) Testes
Answer:
B) Ovaries
These parts of the said flower or plant relate to human ovaries by the spread of seedlings or for ovaries, human eggs.
Answer:
Pistil: Ovaries
Explanation:
Pistil another name for female Ovaries
the pistil is the female reproductive organ of a flowering plant. After the pistil is pollinated by the stamen, it produces fruit and seeds.
Which of the following hereditary conditions is characterized by excessive sebum production?
Answer:
a.c.n.e (join the letters together without full stops. i need to type like this as brainly does not allow me to type that word)
Explanation:
An excess of sebum combined with dead skin cells can block pores and cause blemishes such as blackheads and pimples.
A population of squirrels lived together in a forest. An event occurred that caused the population to diverge into two different species over a long period of time. Which of the following is most likely the event that occurred?
Answer: A natural disaster occurred that separated squirrels.
Hence, this would be the answer.
Answer:
B. A natural disaster that separated squirrels
Explanation:
I can confirm this is correct because I just did the test.
Which of the following is an abiotic reservoir? View Available Hint(s)for Part A birds soil the fish in the sea an algal bloom
Answer:B
Explanation:
Which statement best describes an interaction with the geosphere?
Glaciers shape a mountain valley.
Rain increases acidity of a lake.
Carbon dioxide dissolves in oceans.
Animals release carbon dioxide into the air.
Natural selection
A.
results in changes to a species immediately.
B.
results in no changes to a species.
C.
results in changes to a species over a long period of time.
D.
results in a species being wiped out completely.
Answer:
C.
results in changes to a species over a long period of time.
Explanation:
Environments include both _____ and _____ things.
Question 1 options:
resources; factors
air; water
living; nonliving
buildings; animals
What prevents the simultaneous passage of sperm and urine through the male urethra?.
Answer:
internal urethral sphincter.
Explanation:
Which scientist proved the existence of a virus as a new type of pathogen?
Answer:
Dmitri Ivanovsky
Explanation:
Dmitri Ivanovsky utilized one of these filters in 1892 to demonstrate that despite being filtered, sap from a diseased tobacco plant remained infectious to healthy tobacco plants. The filtered, infectious substance was dubbed a "virus" by Martinus Beijerinck, and this discovery is regarded as the origin of virology.
Can you please give some example's of endangered animal's ? :<
Answer:
axolotls and other few species of fish
giant panda (Ailuropoda melanoleuca) ...
tiger (Panthera tigris) ...
whooping crane (Grus americana) ...
blue whale (Balaenoptera musculus) ...
Asian elephant (Elephas maximus) ...
sea otter (Enhydra lutris) ...
snow leopard (Panthera uncia) ...
gorilla (Gorilla beringei andGorilla gorilla)
Photosynthesis is a major metabolic reaction on planet earth. Explain the following for photosynthesis: Its function (in biology function means what something does) Its location (where in the cell does it take place) The reactants (what goes into the reaction) The products (what comes out of the reaction)
What type of cell is this?
What characteristics helped you decide the type of cell? (Identify form/structure.)
What is this cell's function?
This is Aerolar Connective tissue .
Structure : Cells embedded in a matrix of elastic and in - elastic fibres .Location : Between other tissues and organs.Function : It helps in binding. It helps in repairing of body tissues. ____________________☆ cell -
Robert Hooke in 1665 observed honeycomb structure from a thin slice of cork through a self designed microscope. He found that these consist of many little compartments or boxes whom he called cell.☆ Tissue -
Tissue is made up of a cells that are similar in structure and / or work together to achieve a particular function.2. What is the electrical potential energy difference across the light bulb after the wire is cut?
A 0.0 V
B 1.5 V
C -1.5 V
D Need more information.
3. After the wire is cut, what is the electrical potential energy difference across the two ends of the cut wire?
A 0.0 V
B 1.5 V
C -1.5 V
D Need more information.
Answer: i would say for number 2 its A and number 3 D
Explanation:
for number 2 its A and number 3 D.
What is Potential energy difference?The work done on q by the electrostatic or Coulomb force is independent of the direction taken because it is a conservative force. The gravitational force in the absence of dissipative forces like friction is exactly identical to this.
When a force is conservative, it is possible to define a potential energy that goes along with the force. Because the potential energy varies solely on position, managing it is typically simpler than calculating the work directly.
Electric potential energy and gravitational potential energy are quite similar. Without having to interact directly with the force, potential energy accounts for the work carried out by a conservative force and provides additional insight into energy and energy change.
Therefore, for number 2 its A and number 3 D.
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2. (b) Why is it important to maintain genetic diversity in populations?
Genetic diversity encourages the health of a species and provides material resources such as plants. The loss of genetic diversity leads to reduced options for mates which means even more loss of a species and the species becomes more susceptible to disease. These are very few results that occur with the loss of genetic diversity.
