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Answer:
1.In biology, evolution is the change in the characteristics of a species over several generations and relies on the process of natural selection. The theory of evolution is based on the idea that all species? are related and gradually change over time.
2.Survival of the fittest is a simple way of describing how evolution (the process by which gradual genetic change occurs over time to a group of living things) works. It describes the mechanism of natural selection by explaining how the best-adapted individuals are better suited to their environment.
Related Questions
Which of the only four available pints of blood (A+, AB–, B–, and O+) should the patient receive for a transfusion?
1. B-
2. AB-
3. A+
4. O+
Answers
which of these resources can not be renewed? A. Solar B. Coal C. Wind D. Biomass
Answers
Answer:
coal
Explanation:
it is a non renewable energy source
which of the following are human activities that can negatively impact ecosystems.
Answers
Answer:
Hey not sure if there is something that is supposed to be viewable but some common human activities that can impact ecosystems are, deforestaion, pollution, littering, fracking, spilling oil into the oceans.
Explanation:
Answer:
You didn't put a photo but cutting down trees of putting chemicals into the water/earth can harm ecosystems
According to the food pyramid what contains large amounts for the making of cell membranes
Answers
Fatty acids
Explanation:
Essential fatty acids need to be consumed through the diet and are important building blocks of cell membranes.
As carnes lombinas e animais de bom porte alimenticio e apropiados para "consumo"(no caso , que pode ser ingerido).
please answer urgently
you dont need to explain it
Answers
Answer:
a, chromatin
Explanation:
Blood pH is sensed by cells known as chemoreceptors that send information about blood pH to the brain via cranial nerve 9 and 10. In order to correct changes in pH, the ventral respiratory group sends signals to the diaphragm to adjust its rate of contraction. These signals are sent via the phrenic nerve. What serves as the effector in this example
Answers
Answer:
The correct answer is - The diaphragm.
Explanation:
If there is a response to stimulation if a bodily tissue or organ becomes active and those of the autonomic system involves two neurons, not single neurons like motor pathways of the somatic nervous system.
In this case, the diaphragm is the organ that gets the signal in order to correct or adjust the rate of contraction in response to changes in pH level, Hence, the diaphragm is the organ that is the effector in this case.
Explain how a person can be a carrier for a sex-linked disorder, but not exhibit this disorder.
Answers
A person cannot exhibit the disorder because they don't experience the condition because they have a healthy copy of the gene on their other sex chromosome.
A disorder is a functional abnormality or disturbance that affects an individual's physical, mental, or emotional health.
They have the potential to pass on the mutated gene to their offspring, but they do not exhibit the disorder themselves because they have a normal copy of the gene on their other sex chromosome.
In the case of X-linked disorders, females have two X chromosomes, while males have one X chromosome and one Y chromosome. Females can be carriers for X-linked disorders if they inherit one mutated X chromosome from one parent, and one normal X chromosome from the other parent.
Males, on the other hand, cannot be carriers of X-linked disorders because they only have one X chromosome.
Therefore, a person can be a carrier for a sex-linked disorder if they have one copy of a mutated gene on one of their sex chromosomes, but not on both.
Learn more about disorder here:
https://brainly.com/question/21431209
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What is a limiting factor?
Answers
Answer:
A limiting factor is anything in an environment/ecosystem that limits a population's size. They can be anything from the amount of available food, shelter, and competition.
Hello! I can't find the constants and am a little confused. Could you help me please??
Answers
Answer:
The constants are just variables that are kept constant throughout the experiment. For example, even though the question did not mention this, we can assume that sunlight is a constant, otherwise it wouldn't be a fair experiment.
Some of the constants could be...
- Sunlight
- Water
- Room temperature
- Hours of light
- Soil quality
Let me know if this helps!
Two decades after the Emerald River Dam was built, none of the eight fish species native to the Emerald River was still reproducing adequately in the river below the dam. Since the dam reduced the annual range of water temperature in the river below the dam from 50 degrees to 6 degrees, scientists have hypothesized that sharply rising water temperatures must be involved in signaling the native species to begin the reproductive cycle.
Which of the following statements, if true, would most strengthen the scientists’ hypothesis?
(A) The native fish species were still able to reproduce only in side streams of the river below the dam where the annual temperature range remains approximately 50 degrees.
(B) Before the dam was built, the Emerald River annually overflowed its banks, creating backwaters that were critical breeding areas for the native species of fish.
(C) The lowest recorded temperature of the Emerald River before the dam was built was 34 degrees, whereas the lowest recorded temperature of the river after the dam was built has been 43 degrees.
(D) Nonnative species of fish, introduced into the Emerald River after the dam was built, have begun competing with the declining native fish species for food and space.
(E) Five of the fish species native to the Emerald River are not native to any other river in North America.
Answers
[tex]Hello![/tex]
It is option A.
I'm sure about that.
Which of the following statements, if true, would most strengthen the scientists’ hypothesis?[tex]ANSWER:[/tex] (A) The native fish species were still able to reproduce only in side streams of the river below the dam where the annual temperature range remains approximately 50 degrees.
how do plants use carbon dioxide
A.They release it as waste
B.To build proteins
C.They store it as fuel in limestone deposits
D.To produce sugars
Answers
Answer:
to build protein............
Answer:
C. To produce sugars.
HOPE IT HELPS YOU.state two forces that occur when two metals meet together
Answers
Answer: repel forces and attract forces
answer f and g urgently
it relates to the picture
Answers
G is option D
The answer to g is D
Single-celled organisms with cell walls do not have contractile vacuoles. Suggest why.
Answers
Hope this helps and please like!!
Which of the following is an autotroph?
A. A consumer
B. A prey
C. A predator
D. A producer
Answers
Answer:
D) producer
Explanation:
An autotroph, or main producer, is a living creature that uses carbon from basic molecules like carbon dioxide to build complex organic compounds, usually with the help of light or inorganic chemical processes.
OAmalOHopeO
write a short note on akaryotic cells
Answers
Answer:
Eukaryotic cells have a nucleus enclosed within the nuclear membrane and form large and complex organisms. Protozoa, fungi, plants, and animals all have eukaryotic cells. ... They can maintain different environments in a single cell that allows them to carry out various metabolic reactions
Answer:
Explanation: Akaryocytes, also known as akaryotes or acaryotes, are cells without a nucleus. The most common type of akaryocytes are viruses. The name is derived from the Greek prefix "a-", meaning "without" and the Greek "karyo-", meaning "nut" or "kernel". ... This cell biology article is a stub.
what do you mean by components of mixture?
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Answer:
The components of a mixture are the items that are mixed together.
mitosis cell division are required to form 64 cell for one cell?
a.4
b.6
c.16
d.32
Answers
Answer:
im not sure
Explanation:
como se llama el primer cartílago de la tráquea
Answers
Answer:
cricoid cartilage
Explanation:
I think
Forensic anthropologists are trying to determine the age of a male skeleton that has been uncovered. They conclude that he must have been between 16 and 19 judging by the measurement of his
ribs
clavicle
pelvic bone
tibia
Answers
Explain what will happen to your eyes when..
a) you move in a very bright light.
b) you move in a dim light
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Answer:
For A your pupils will shrink for B your pupils will dilate.
Answer:
When you look at something that is bright, your pupil may shrink.
When you look at something dim, your pupil may get larger.
Explanation:
I think your pupil may get larger if you look at dim light because your eye may have a hard time seeing what's going on. And the opposite may happen when you look at bright light.
Soil moisture influences both hydrological and agricultural processes and is part of the water and energy cycles through ________.
transpiration
evapotranspiration
evaporation
condensation
Answers
Answer:
Its either evapotranspiration or condensation
Explanation:
Hope it helps✌✌
Answer:
The correct answer is evapotranspiration.
Explanation:
Evapotranspiration is the process of water moving from Earth's surface to the atmosphere. The way water moves from the soil to atmosphere is through this process.
What’s was the purpose of Miller and Urey’s experiment
Answers
Answer:
D
Explanation:
to find out how biological molecules could have first formed
A dependent variable is:
Answers
Answer:
the variable that is being measured or tested in an experiment
Explanation:
just fax
Helpppppp please!!! How do membrane proteins contribute to the membrane potential?
Answers
Answer:
the answer is B
Explanation:
the answer is b
Biology MCQs please help
Answers
(1) Group of cell that work together as one to perform a single function is termed as Tissue . Then the group of tissue combine to form organs and further they combine to organ systems and further they combine to form organ system .
(2) They are unicellular green algae which belongs to family Volvocaceae of the Plantae Kingdom
(3) Hypothesis is the assumption which are taken on the behalf of the observation on small scale . They can be correct or incorrect depends on the number of observation and Hypothesis.
(4) Viruses are included in any of the kingdom because they are on the intermediate line of living and non living as they show properties of non living outside the host and properties of living inside the host
Which of the following is an example of a natural selection?
1 point
All grey squirrels have not changed for a 1,000 years
Birds developed wings because they wanted to fly.
Fish developed gills because they wanted to move to land.
A new species of purple squirrels forms due to a change in the ecosystem.
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Answer:
A new species of purple squirrels forms due to change in the ecosystem
Explanation:
Key part: Change in the ecosystem
State one reason why soil organisms need air
Answers
Answer:
To release plants nutrition's to soil .
I HOPE I HELP YOU.
Have a great day .
:D
Please help me...will give braniliest
Answers
Hope it helps…Good luck..Stay safe and healthy…thanks….<3333
select the correct answer from each drop down menu.
both anaerobic and aerobic respiration use __ to produce ATP and NADH
