Answer:
1) Index fossils are of organisms that lived over a wide area. They lived for a fairly short period of time. An index fossil allows a scientist to determine the age of the rock it is in.
2) Relative dating is used to determine a fossils approximate age by comparing it to similar rocks and fossils of known ages.
Explanation:
Answer:
Some fossils, known as index fossils, help geologists balance rock layers. A fossil must be broadly dispersed to be a valuable index fossil and indicate a form of organism that has lived for a short time. Index fossils are valuable when the relative ages of the rock layers are told.
Copying this answer is plagiarism. Please refrain from using these exact words.
Which of the following statements is true about naturalistic observation?
It is the same process as objective introspection.
It recreates natural conditions in the laboratory to make an experiment more valid.
It involves observing behavior in its natural context.
It involves observing behavior in the lab without taking formal notes.
It involves observing behavior in the lab without using technological equipment to measure the experimental findings.
Answer:
"observing" (and any subsequent words) was ignored because we limit queries to 32 words.
The true statement about naturalistic observation is C. It involves observing behavior in its natural context.
Naturalistic observation is a research tool in which the researcher observes a subject in her natural habitat without any manipulation by the observer.
A characteristic of naturalistic observation is that researchers carefully avoid interfering with the behavior they are observing to prevent modifications in the natural behavior of those observed by their presence.
An example of this type of observation are some documentaries in which the scientists, researchers, and cameramen of this do not influence the natural dynamics, but are limited to passively observe and draw their conclusions about what they observe.
According to the above, answers A, B, D, and E are not correct because they refer to types of observations in which the observer interferes with natural dynamics. While option C does provide a statement that corresponds to naturalistic observation.
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What does B, A, and C represent?
Answer:
A: Nucleus
B: Mitochondrion
C: Cell Wall
Which of the following is a characteristic of putrefaction?
Skin tightening
Muscle relaxation
Bloating
A blue discoloration
Answer:
C. Bloating
Explanation:
Got it right on Edge 2020
Answer:
Bloating
Explanation:
GP
Label A, B, C, and D in the image below. What theory is this? Explain your answer using the image provided.
Answer:
I think is C
Explanation:
PLS HELP ITS DNA MUTATIONS AND IDK WHAT TO DO
Answer:
6) insertion 7) deletion 8) inversion 9) substitution
10) substitution 11) insertion 12) deletion 13) substitution
14) inversion 15) insertion 16) inversion 17) deletion
18) insertion 19) Inversion 20) inversion
Explanation:
MARK AS BRAINLIEST
Thank you
Which of the following elements is a key component of adenosine
triphosphate (ATP?)
Answer:
Nitrogenous base and phosphate.
Explanation:
Nitrogenous base and phosphate group are the elements which is considered as the key component of adenosine triphosphate (ATP). adenosine triphosphate comprise of nitrogenous base, the sugar, ribose, adenine and three phosphate groups attached to ribose. This adenine triphosphate is used by the cell for the production of energy needed for different cellular activities.
Which factors involving the activities of people are a threat to biodiversity?
A. pollution and succession
B. habitat loss and predation
C. poaching and habitat loss
D. succession and poaching
Answer:
C
Explanation:
I JUST TOOK THE TEST
The answer to this question is C. Poaching and Habitat Loss. Poaching is the illegal hunting, killing, or capturing of animals, and is a major threat to biodiversity.
What is the involvement of endangered species ?It can involve the hunting of endangered species for their fur, meat, or other body parts, or the trapping of animals for the pet trade. Poaching can have a devastating effect on local ecosystems, as it can lead to the extinction of certain species, or cause an imbalance in the food chain.
Habitat loss is also a major threat to biodiversity. Human activities such as deforestation, urbanization, and agricultural expansion have caused the destruction of habitats all over the world.
This destruction can lead to the loss of species, as they may no longer have a suitable environment to live in. Additionally, it can also cause an imbalance in the food chain, as certain species may no longer have the resources they need to survive.
In conclusion, the two factors involving the activities of people that are a threat to biodiversity are poaching and habitat loss. Poaching can lead to the extinction of certain species, while habitat loss can cause an imbalance in the food chain. Both of these activities can have a devastating effect on local ecosystems and must be addressed in order to protect biodiversity.
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A pulley was used to lift wood that weighed 3892 N. The force applied to the pulley was 274 N. What is the mechanical advantage of the pulley?
Answer:
1946/137
Explanation:
I would say this would go under physics rather than biology.
The mechanical advantage is found by the ratio of the output force to the input force. Writing this as an equation will be MA = F_o/F_i where F_o is the output force and F_i is the input force. Solving for MA with the information we have, we get: MA = 3892/274 = 1946/137
a comparison of ATP and glucose
Answer:
Glucose and ATP are organic compounds composed of carbon, hydrogen and oxygen. Cellular respiration breaks down glucose into water and carbon dioxide producing 38 net ATP molecules. ATP is the energy containing nucleotide in cells while the energy found in glucose is used to make ATP
PLEASE HELP!! I NEED THIS ANSWERED FAST PLEASE!!!
In humans, the form of cell division
in which the number of
chromosomes is halved to produce
gametes is known as -
a) mitosis
b) centrioles
c) meiosis
d) cytokines
the answer to this question is c meiosis
Answer: C. Meiosis
Explanation: "In humans, n = 23. Gametes contain half the chromosomes contained in normal diploid cells of the body, which are also known as somatic cells."
Help me with this question. plzzzzz
Answer:
d. Protection
Answer:
transpiration is of the function of epidermal cells of a leaf
The graph below shows the effect of carbon dioxide levels on the rate of photosynthesis.
Rate of Photosynthesis
r
Carbon dioxide level
If the amount of carbon dioxide available to the plant approaches zero, what will happen to the plant's rate of photosynthesis?
OA. It will decrease.
ОВ. .
It will not change.
OC.
It will increase, then decrease.
OD. It will increase.
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Submit
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The rate of photosynthesis will decrease.
Please please help- 15 pts- PLEASE GET IT CORRECT
Answer:
I had this question before but I don't remember what is was but it's most likely c in this photo
1. When you exercise, you produce ____ carbon dioxide, since your body is doing more cellular respiration to make ATP
a) less
b) no
c) the same amount of
d) more
2. What are the reactants of cellular respiration? (The molecules that go in)
a) carbon dioxide, ATP, water
b) ATP
c) sugar and oxygen
d) sunlight, carbon dioxide, water
1.you produce d)more CO2 since the rate of this reaction increases(C6H12O6+O2--->CO2+H2O)
2.The reactants in cellular respiration are c)sugar and oxygen
Which phrase best summarizes the function of the endocrine system?
A use of hormones to regulate body processes
B. disposal of dissolved waste molecules
C. creation of the force that enables the body to move
D. movement of substances to and from cells where they are needed or produced
Answer:
I believe the correct answer is A. Use of hormones to regulate body processes.
A. Use of hormones to regulate body processes is the best summary of the function of the endocrine system.
What is an endocrine system?The endocrine system is a complex network of glands and hormones that regulate various body processes, including growth and development, metabolism, and reproductive function.
Hormones are chemical messengers that are produced by endocrine glands and secreted into the bloodstream, where they travel to target cells and organs and bring about specific physiological changes. The endocrine system works in concert with the nervous system to help control and coordinate the body's functions.
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Most white blood cells destroy
Answer:
White blood cells: Serving as an army against harmful bacteria and viruses, white blood cells search for and attack and destroy germs to keep you healthy.
Explanation:
What trend in the complexity of life over time is seen through the fossil record?
Most animal and plant species we see in the fossil record are extinct, or no longer living. In fact, of all the species that ever lived, 98% are extinct. Animals and plants become extinct over time as a result of natural processes. Their habitat might change or a disease might wipe out a species.
The trend of extinction and difference in body parts in the complexity of life
over time is seen through the fossil record
Fossils refers to remains of living organisms which have been replaced in the form of rock particles due to its presence in the soil for a long period of time.
The fossils contain an understanding of the structures and characteristics
the animals had which is then compared to its present structures. This helps
to explain how the animals adapted to climate change through changes in
the structure, shape of parts of the body.
It also tells the location of animals and their different movements in response to challenges faced in the ecosystem.
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PLZZ HELPP THIS IS OVERDUE!
Explain how the sun's heat drives the circulation of water between the land, oceans, and atmosphere.
Answer:
The water cycle.
Explanation:
The sun drives the movement of water through a process called the water cycle. In this process, water is evaporated from the sun's heat that reaches Earth. This water rises into the atmosphere in the for of water vapor. This water vapor then collects in the atmosphere along with other particles such as fine dust. This water then precipitates back onto the Earth. Presumably, the water precipitation may fall onto a land formation and integrate back into the ecosystem in the form of ground water or join a steam/river and end up in a lake or the ocean. The water then continues this cycle.
In the Krebs cycle, how is citric acid formed? (1 point)
O Enzymes combine hydrogen ions, oxygen, and electrons.
O Carbon dioxide bonds with a chain of coenzyme A.
O Pyruvic acid molecules are broken down by an acetyl group.
O Acetyl-CoA joins with a large molecule called oxaloacetic acid.
Answer:
D. Acetyl-CoA joins with a large molecule called oxaloacetic acid.
Explanation:
this forms a citrate molecule, which is then oxidized and releases two carbon dioxide molecules to be fed into the cycle.
Answer:
For connexus students: Cell Work Unit Test
Explanation:
1. 12
2. Chlorophyll breaks down because there's less sunlight.
3. The Calvin-Cycle is light independent (does not need sunlight)
4. light
5. C6 H12 O6 + 6O2 + 6H2O + energy
6. Pyruvic Acid+ NADH --> Lactic Acid+ NAD+
7. Acetyl-CoA joins with a large molecule called oxaloacetic acid
8.Electrolosis
9. ATP
10. Krebs Cycle
11. Oxygen
12. 12
13. Ectotherms cannot insulate- and can only control their body temperature by choice.
14. Shivering
How does the United States GDP compare with that of the rest of the world?
Answer:
Is this what you're looking for?
Explanation:
In 2018, the United States accounted for 15.2 percent of global gross domestic product (GDP) after adjusting for purchasing power parity (PPP). This share was expected to decrease to 13.86 percent by 2024, which is roughly a seventh of the global total.
What is ATP, and how is energy released from the molecule of ATP? Please be specific of which parts of the molecule release the energy.
Answer:
Molecular Structure of ATP. Energy is released by hydrolysis of the third phosphate group. After this third phosphate group is released, the resulting ADP can absorb energy and regain the group, thus regenerating an ATP molecule; this allows ATP to store energy like a rechargeable battery.
Explanation:
During photosynthesis, cells capture the energy of sunlight using (thylakoid / stroma / NADPH / chlorophyll), which is a type of (nucleotide / carbohydrate / hormone / pigment). Photosynthesis also relies on a compound called (ATP synthase / NADP+ / glucose / DNA), which is an electron (sink / source / carrier / donor) that accepts and transfers high-energy electrons.
Answer:
Chlorophyll
Pigment
NADP+
Carrier
Explanation:
Photosynthesis is the process where green plants synthesize their food in form of sugars using sunlight energy. Photosynthetic process occurs in two stages namely: Light dependent stage and Light independent stage.
In the light dependent stage, which occurs in the thylakoid lumen, cells capture the energy of sunlight using CHLOROPHYLL, a type of PIGMENT found in the chloroplast. However, photosynthesis also relies on a compound called NADP+, which serves as an ELECTRON CARRIER that accepts electrons to become NADPH and transfers its stored high-energy electrons.
Answer:
During Photosynthesis, cells capture the energy of sunlight using chlorophyll, which is a type of pigment.
Photosynthesis also relies on a compound called NADP+ which is an electron carrier / donor that accepts and transfers high-energy electrons.
Photosynthesis involves the conversion of light energy from Sunlight into Chemical energy. Photosynthetic organisms use this process to produce their food.
The light rays are captured by a green pigment called Chlorophyll which helps to catalyze the reaction of Carbon dioxide and water to produce Sugar and Oxygen.
The NAD+ found in the chloroplast which produces the chlorophyll is an electron carrier which accepts and transfers high energy electrons in order to ensure the process takes place.
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4. Which statements are true of the bone tissue? *
an osteon is a functional unit of compact bone
haversian system is another name for osteon
lacunae are small spaces within bone tissue
there is rich blood, nerve and nutrient supply to bone tissue
bone is always thick and heavy
spongy bone is mostly found along the diaphysis of a long bone
Answer:
Explanation:
bone is awalys thivk and heavy
The top sequence is A G C T G T.
The bottom sequence is A G C T G A T. A G C T G A T.
- insertion
- deletion
- substitution
Answer:
substitution
Explanation:
Answer:✔ insertion
Explanation:
Igneous rocks are formed due to the
cooling of magma
weathering of rocks
changes in pressure
deposition of sediment
(A) Cooling Of Magma
PLS help me ill give you brainliest!!!!
Which statement would be used in an argument against the use of human embryonic stem cells for therapy?
A.Obtaining embryonic stem cells for use in therapy requires the destruction of embryos.
B.Embryonic stem cells are limited in their ability to become different types of cells.
C.It is difficult to grow embryonic stem cells in laboratory cultures, so they are not a practical choice for stem cell therapy.
D.Embryonic stem cells originate in plants, so the likelihood of rejection by a patient’s body is high.
Answer:
A. Obtaining embryonic stem cells for use in therapy requires the destruction of embryos.
Explanation:
Which of the following identifies the type of tissue organ x made out of an physiological process is involved in?
Answer:
b
Explanation:
because me teacher just went over it
Cancer is marked by uncontrolled cell growth and division. Which factor in excessive amounts contributes to this development
Answer:
Uncontrolled Meiosis is the correct answer for your question. Cancer: Cancer is a non-infectious, deadly disease that results in the uncontrolled growth of the tumor cells or cancer cells.
Explanation:
i hope that helps
A student builds a model of a DNA strand.
Which of these models of a DNA strand shows bases that are complementary to the ones on the student’s DNA model?
Just leave the number to tell me the answer so that way you don't have to type all the letters
The study of genes and inheritance is called genetics. In a gene pair, one allele is recessive and the other is dominant.
The correct answer to the question is option C
What is DNA?The molecules which store all the genetic information and regulate the formation of the protein, enzyme, and hormones.All the nitrogenous bases are complementary to each other. For example, adenine binds to thymine and uracil binds to cytosine.
After binding all the things to the DNA, the correct answer is option C.
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where is the lithosphere layer located
Answer:
The lithosphere is located below the atmosphere and above the asthenosphere.
Explanation:
The lithosphere layer is located at the outermost solid layer of the earth where the rocks and mountains are present, and it is also considered the earth's crust and the uppermost part of the mantle.
What is the significance of the lithosphere of the Earth?The lithosphere of the earth is significant because in this layer has all the earth's continents and ocean floors are contained, and it is the solid outer layer of the earth that has been providing the foundation for life on the earth's surface, including human civilization and other life forms. From this lithosphere layer, different earthquakes can be measured too.
Hence, the lithosphere layer is located at the outermost solid layer of the earth where the rocks and mountains are present, and it is also considered the earth's crust and the uppermost part of the mantle.
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