Answer:
Gastrulation leads to the formation of the three germ layers that give rise during further development to the different organs in the animal body. This process is called organogenesis. Organs develop from the germ layers through the process of differentiation.
Give an example of a negative feedback loop.
Propose an action plan you would implement in your backyard or in your
neighborhood community to reduce a human impact on a local aquatic ecosystem. In
your action plan proposal, be sure to address the
questions below. Provide sufficient evidence from previous lessons and scientific
reasoning to answer the questions and support your proposed action plan.
1. Where and how it would be implemented? (2 pts.)
2 Why is it a good course of action in reducing a human impact on aquatic ecosystems from
your backyard or community? (2 pts.)
3. What is one way you would monitor your action plan to ensure that it is working to
reduce human impacts into the future? (2 pts.)
There are many ways by which we can reduce human impact in the local aquatic ecosystem.
What do you mean by aquatic ecosystem?Aquatic ecosystems include oceans, lakes, rivers, streams, estuaries, and wetlands. Within these aquatic ecosystems are living things that depend on the water for survival, such as fish, plants, and microorganisms.
It will be implemented on both backyard and aquatic ecosystem. It is good course of action so that organism of aquatic ecosystem have not suffered from the human activity like cleaniness of water, no mixing of chemicals and fishing.Constant checking of quality and population of aquatic organism will ensure that human impact get reduce on aquatic ecosystem.
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What does a transformed e. Coli cell contain that a normal e. Coli cell does not?.
A transformed e. Coli cell contain plasmid with an ampicillin resistant gene while a normal e. Coli cell does not.
What is a Transformed bacteria?This is the type of bacteria which has been modified through the introduction of a foreign DNA.
The DNA is introduced to the e.coli which then makes it to be ampicillin resistant for research works.
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the main form of glucose repression in the lac operon is
Answer:
Extracellular glucose affects the lactose operon activation by inhibiting
One of the benefits of the degeneracy of the genetic code is that:.
Answer:
degeneracy allows multiple codon triplets to code for a single amino acid.
Explanation:
Not sure of the options, but degeneracy allows multiple codon triplets to code for a single amino acid. Like UAU and UAC both code for tyrosine.
How does the carbon locked in shells of marine organisms move back to the atmosphere?
A.
through subduction of deposits and volcanism
B.
through the process of respiration in these organisms
C.
through death and decomposition
D.
through the microbial process of ammonification
E.
through chemical reactions in acidifying oceans
IT'S NOT B OR C
Answer:
Explanation:
A.
through subduction of deposits and volcanism
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.
8. food gives the body energy, which helps the body maintain homeostasis. in the
morning, an athlete eats a nutritious breakfast to get energy to exercise. what are the
main organ systems involved in the process of food from the athlete's breakfast being
broken down into nutrients and then delivered to the cells?
a. digestive and excretory systems.
b. digestive and circulatory systems.
c. nervous and excretory systems.
d. respiratory and circulatory systems.
a. digestive and excretory systems.
Lichens are important to the environment because _____
A) they decompose carbon dioxide
B) they produce large amounts of oxygen
C) they recycle nutrients into the environment
D) All of the above
Answer:
D- all of the above
Explanation:
In an area of 3 square miles there are 27 bears. What is their population density?
A. 9 bears / square mile C. 24 bears / square mile
B. 81 bears / square mile D. 30 bears / square mile
Answer:
9 bears per square mile
Have a nice day :)
28. What is a ribosome? What is the function of a ribosome in a cell?
Answer:
Ribosomes are composed of special proteins and nucleic acids. A ribosome functions as a micro-machine for making proteins.
Explanation:
Hope this helps!!
Answer: a tiny particle present in huge quantities in the cytoplasm of living cells that is made up of RNA and related proteins. They transport RNA and bind messenger RNA to create polypeptides and proteins.
Explanation:
Autotrophs and heterotrophs are classified according to their energy pathways autotrophs are able to-
Answer:
Autotrophs and heterotrophs are classified according to their energy pathways autotrophs are able to obtain energy from the sun and they produce their own food, whearas hetertrophs obtain food from other organism
Explanation:
Hope this helps
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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can you answer this question pls
Answer:
Tumor's are formed by a rapid cell division and is given many immature cells. But by preventing mitosis it will prevent the formation of growth of new cellls and will hence the growth of a tumor.
Hope this helps :))
What is it called when a species
completely dies off?
Helllllppppp
Answer:
Extinction
Explanation:
Extinction is a procedure in which reinforcement of a previously reinforced behavior is discontinued; as a result, occurrences of that behavior decrease in the future.
3.2 The data in the table below was recorded during the investigation: Distance in cm 10 20 30 40 Rate of photosynthesis (Number of bubbles per minute) 27 23 16 7 50 2. 3.2.1 Identify: (a) the dependent and (b) independent variables in the experiment. (1) (1) 3.2.2. Draw a line graph to represent the data obtained during the experiment (6) (2) 3.2.3 What conclusion can be drawn from the results above?
Answer:
i dont konew
Explanation:
In balanced translocation heterozygotes, viable gametes and progeny are produced by which pattern(s) of chromosome segregation
Answer:straight
Explanation:
Atoms of the same element with different numbers of neutrons are called ______.
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: I) Isotopes
Hope this helps
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Temperature, cloud cover, and thunder are all examples of
O a. storms
O b. weather
O c. climate
O d. barometric pressure
Temperature, cloud cover, and thunder are all the examples of weather. Thus, the correct option is B.
What are the weather conditions?Weather is the state of the atmosphere. This is the degree to which it is hot or cold, wet or dry, calm or stormy, clear or cloudy at a geographical location. On the Earth, most weather phenomena occur in the lowest layer of the planet's atmosphere, the troposphere, just below the stratosphere of the Earth.
Weather refers to the day-to-day temperature, precipitation, and other atmospheric conditions, whereas the climate is the term for the averaging of atmospheric conditions over longer time periods.
Weather includes the sunshine, rain, cloud cover, winds, hail, snow, freezing rain, flooding, ice storms, thunderstorms, steady rains from a cold front or warm front, excessive heat, and heat waves.
Therefore, the correct option is B.
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1. Briefly explain how multicellular organisms can develop from a single cell:
Answer:
Plants, animals and fungi are the most spectacular and complex achievements of this kind. There are essentially two ways to make a simple multicellular entity out of single cells: either a single cell divides and its offspring stick together, or several solitary cells aggregate to form a colony
Explanation:
Which of the following affects the outcome of an experiment?
a
Dependent variable
b
Control
c
Standard
d
Independent variable
Which of the following phases ends just before cell division?
A. M phase
B. G1 phase
C. G2 phase
Answer:
C
Explanation:
The G2 phase ends just before cell division as it is considered as the last phase of the process of cell division. Thus, option C is correct.
What happens in different phase of cell cycle?In eukaryotic cells, the phases of the cell cycle are divided into two major phases, which are interphase and mitotic stage. During the mitotic stage, cell divides its DNA and cytoplasm into two equal parts, thereby forming two daughter cells.
Cell division is essential for organism growth, tissue repair, healing and regeneration, and reproduction. The process by which a parent cell divides into daughter cells is known as cell division. For both single-cell and multicellular organisms, cell division is essential. Cell division can directly increase the population of single-celled organisms like Amoeba or Paramecium.
Therefore, The G2 phase ends just before cell division as it is considered as the last phase of the process of cell division. Thus, option C is correct.
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A dietitian wants to track the effect of varying amounts of protein on the muscle mass of her clients. The varying amounts of protein are a(n) _____, and the resultant muscle mass is a(n) _____.
Most falcons, a type of bird, lay two to four eggs at a time. Those falcons that produce fewer or more than this have reduced fitness. Which of the following selection best describes this?
a. directional selection
b. disruptive selection
c. stabilizing selection
Answer: C. Stabilizing selection
Explanation:
why we find the soft parts still
remaining in a Fossil, if it trapped
in amber, or ice?
Answer:
Why dont soft parts usually leave fossils?
The hard parts of organisms, such as bones, shells, and teeth have a better chance of becoming fossils than do softer parts. One reason for this is that scavengers generally do not eat these parts. Hard parts also decay more slowly than soft parts, giving more time for them to be buried.
Explanation:
yeah
3. What device is used to measure the radiation exposure of people working with radiation?
Answer:
Geiger counters are commonly used to measure the amount of radioactivity, but there are other types of detectors that may be used
Explanation:
Which force most likely created this mountain?
compression
gravity
shearing
tension
Answer: Compression
Explanation: got it right on edge
6. If an exothermic reaction has reached equilibrium, then increasing the temperature will
A. favor the forward reaction.
B. favor the reverse reaction.
C. favor both the forward and reverse reactions.
D. have no effect on the equilibrium.
If an exothermic reaction has reached equilibrium, then increasing the temperature will favor the reverse reaction. So, the correct option is B.
What do you mean by Exothermic reaction?Exothermic reactions are those reactions in which the energy or heat is liberated apart from the product.
Increasing the temperature of exothermic reactions causes a decline in the concentration of products while enhancing the concentration of reactants.
Therefore, if an exothermic reaction has reached equilibrium, then increasing the temperature will favor the reverse reaction.
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what is needed to create a self-sustaining ecosystem inside of a dome?
what did Mendel's cross pollination of pea plants prove (50 points pls anwser)
a Different offspring do the same parents inherit different characteristics
b pea plants can have yellow seeds or green seeds
c genes are found on chromosomes in all cells of an organism
d cross-pollination creates plants with new characteristics
Answer:
a
Explanation:
Different offspring of the same parents inherit different characteristics.
Answer: A. Different offspring do the same parents inherit different characteristics