Mosquitos produce more offspring than can survive in their lifetime.
Offspring are varied genetically, with differential survival and reproduction.
What are mosquitoes?Mosquitoes are ectoparasites, which live on the blood of different animals.
They suck blood from the skin of animals and leave red spots, which are itchy.
Mosquitoes lay their eggs in water and live in dirty, moist, dark places.
They are also responsible to cause malaria in humans.
Thus, the correct option is B.
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Why is an ecosystem with higher levels of biodiversity more stable than an ecosystem with lower levels of biodiversity?
O because species are more adaptable
O because they are better able to withstand stresses like disease or climate change
because changes affect every species the same way
because species are constantly replacing one another
An ecosystem with higher levels of biodiversity is more stable than another with lower levels because they are better able to withstand stresses like disease or climate change.
What is biodiversity?The term biodiversity refers to all of the variations (both genetic and phenotypic) in a given population.
Biodiversity is a fundamental subject to maintaining the equilibrium (homeostasis) of the whole ecosystem.
Higher biodiversity allows populations to face environmental changes such as diseases or climate change.
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Mountains are formed at continental plates that converge because they have
similar
Answer:
When two plates of continental crust collide, the material pushes upward. This forms a high mountain range. The remnants of subducted oceanic crust remain beneath the continental convergence zone
Explanation:
helppp
I dunno how to answer theseeeee im so confuseddddddddd
Answer:
We know energy is transferred because it is exchanged at each level when one consumer eats another consumer.
You can provide evidence by comparing the units at each level.
State one reason
scientists would value an experiment that does not support the initial hypothesis.
Scientists value experiments that do not support the initial hypothesis because it helps them to make new discoveries and refine their hypotheses.
HypothesesThey are tentative statements without any experimental test.
Hypotheses are made and tested with experiments. When the outcome of an experiment supports a hypothesis, such a hypothesis is accepted.
When the outcomes of an experiment do not support a hypothesis, such a hypothesis is refined and retested. this leads to more discoveries.
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#SPJ2
Discuss the relationship between Gibbs free energy, redox reactions and cellular respiration in mitochondria.
Cellular respiration is a redox process that mainly occurs in mitochondria, whereas Gibbs's free energy refers to the energy in a closed system.
What is cellular respiration?Cellular respiration refers to the oxide reduction reactions (redox) associated with the production of energy in aerobic cells.
Cellular respiration occurs in the cytoplasm (glycolysis) and mitochondria (Krebs cycle and oxidative phosphorylation).
Finally, in thermodynamics, the Gibbs free energy refers to the energy generated in a closed system.
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A cluster of thunderstorms has developed over the Atlantic Ocean in August. The
speed of its wind is getting higher. It has heavy rains and is moving towards the
east coast of North America. What may develop from this?
A
a blizzard
В
B.
a hurricane
С
a tornado
D
a drought
Com
From the data provided, the storm is likely going to develop into a hurricane.
What are hurricanes?Hurricanes are large tropical storms which develop as a result of warm ocean currents and which travels at relatively high speeds precipitation large amounts of rainfall along the way.
Hurricanes develop over the Atlantic ocean.
From the given information, the thunderstorms developed over the Atlantic Ocean, has heavy rains and is moving towards theeast coast of North America.
Therefore, it can be concluded that it is likely a hurricane.
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What structures are present in plant and animals cells but not in bacterial cell
Answer:
organelles such as nuclei, mitochondria or chloroplast
How does artificial selection affect variation within a species when a specific trait continues to be bred?
It reduces the amount of variation.
It increases the amount of variation.
It has no impact on the amount of variation.
It causes variation to fluctuate with each generation.
The amount of variation is reduced when a specific trait continues to be bred.
What is artificial selection?Artificial selection is the process in which organisms are chosen by human for the breeding purpose in order to get the desired characteristics.
So we can conclude that It reduces the amount of variation when a specific trait continues to be bred.
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How to do a dichotomous key
Answer: I hope this helps you! :3
Explanation:
Step 1: List down the characteristics
Pay attention to the specimens you are trying to identify with your dichotomous key. List down the characteristics that you can notice. For example, say you are trying to classify a group of animals. You may notice that some have feathers whereas others have legs, or some have long tails and others don’t.
Step 2: Organize the characteristics in order
When creating your dichotomous key, you need to start with the most general characteristics first, before moving to the more specific ones. So it helps to have identified the more obvious and less obvious contrasting characteristics among the specimen before creating your dichotomous key.
Step 3: Divide the specimens
You can use statements (i.e. has feathers and no feathers) or questions (does it have feathers?) to divide your specimens into two groups. The first differentiation should be made on the most general characteristic.
Step 4: Divide the specimen even further
Based on the next contrasting characteristic, divide the specimen further. For example, first, you may have grouped your animals as have feathers and have no feathers, in which case the ones with feathers can be categorized as birds while you can further subdivide the ones that have no feathers as having fur and having no fur. Continue to subdivide your specimen by asking enough questions until you have identified and named all of them.
Step 5: Draw a dichotomous key diagram
You can either create a text-based dichotomous key or a graphical one where you can even use images of the specimen you are trying to identify. Here you can use a tree diagram or a flowchart as in the examples below.
Step 6: Test it out
Once you have completed your dichotomous key, test it out to see if it works. Focus on the specimen you are trying to identify and go through the questions in your dichotomous tree to see if you get it identified at the end. If you think the questions in your dichotomous key needs to be rearranged, make the necessary adjustments.
Which phase of cell division is shown?
prophase
telophase
anaphase
metaphase
50 points!!! WILL MARK BRAINLIEST
The phase of cell division shown in the attached image is anaphase.
What is cell division?Cell division is the process whereby a single cell forms two daughter cells.
Cell division involves the following stages as follows:
ProphaseMetaphaseAnaphaseTelophaseIn the anaphase stage, the chromosome is separated into opposite poles by the centrosomes.
Therefore, as depicted in the image, the phase of cell division shown in the attached image is anaphase.
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what is the causing the disorder of tachycardia
Answer:
Abnormally Fast heart rates that could be caused by other underlying diseases
Explanation: From medical education website.
2. Discuss why a four chambered heart is more efficient than a two chambered heart in delivering oxygenated blood to the various body parts. What evolutionary changes in the lifestyles of organisms selected for the evolution of the four chambered heart?
As organisms became more active, a four-chambered heart was selected for because of its ability to separate oxygenated and deoxygenated blood.
Why is a four-chambered more efficient in oxygen delivery than a two-chambered heart?A four-chambered heart is a heart consisting of four chambers, namely;
upper ventricle lower ventricle upper atrium and lower atriumA four-chambered heart is more efficient in oxygen delivery than a two-chambered heart because it does not allow for mixing of oxygenated and deoxygenated blood.
A more active lifestyle by organisms and larger body size selected for a four-chambered heart in organisms.
Therefore, the efficiency of a four-chambered heart is in it's ability to separate oxygenated and deoxygenated blood.
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5. What are the outputs of photosynthesis?
glucose and oxygen
water and carbon dioxide
energy and water
carbon dioxide and glucose
[tex]\huge\mathcal\pink{ANSWER} [/tex]
[tex] \mathsf \purple{glucose \: and \: oxygen}[/tex]
Answer:
Glucose and oxygen
Explanation:
Photosynthesis is a natural food making process that occurs in plants.In the process(in the leaves of plants) carbon dioxide reacts with water containing minerals in the presence of sunlight(which was trapped by the chloroplast) to produce oxygen and glucose.
Try this investigation.
This supply is needed:
gallon jar (or other large, glass container)
Follow these directions and answer the questions.
1. Select one of the following habitats and set up a living community. Indicate the habitat you choose. You may use an area nearby to gather organisms or environmental factors for your habitat.
Freshwater aquarium
Woodland terrarium
Marine aquarium
Desert terrarium
Aqua-terrarium
2. Study your habitat for several weeks to observe and record any changes. In a 250-word report, describe your habitat and answer the following questions.
What kinds of organisms does your habitat contain?
What changes occurred in your habitat after a period of time?
Answer:
I deceided to do the project with fresh water from my creek in the backyard. I was hoping to get some living organisms in the water when i scooped it up.The first week there wasnt many changes i did notice the water was turning slightly a different color but no major changes. The secound week my water was more of a green color and not as much brownish clear. There was also some green stuff growing which i think that was alge.The third week my water was all the way green and i noticed there was some stuff floating in the water but i dint see any living organisms. There was also more alge in it than last time.
Explanation:
Some spelling is wrong but overall i got a good grade on this i hope this can help :)
Play the spectrogram at normal speed and slowed down. How many calls did the bats make?
Answer:
Bat echolocation calls vary in their dominant frequency approximately between 11 kHz (e.g. Euderma maculatum; Fullard & Dawson 1997) and 212 kHz (Cloeotis percivali; Fenton & Bell 1981). Most insectivorous bats call with dominant frequencies between 20 kHz and 60 kH
please I need help immediately, describe an experiment to verify the living organisms in the soil.
Answer:
Soil living organisms compromise from mammals (such as rats) to micro organisms (such as nematodes and protozoa). Soil organisms help in the modification of soil, and also in the decomposition of organic matter. However they can also pose as a treat to to some crops, as they are responsible for some plant diseases.
Explanation:
When living organisms breathe they give out carbon dioxide gas as a waste product. Carbon dioxide gas can be detected (identified) using a carbon dioxide indicator solution called bromothymol blue. To find out if there are living organisms present in the four different levels of soil takenfrom the deciduous forest.
True or false? Because they share similar structures, cells all carry out the same function.
Answer: False
Answer: The structural and functional characteristics of different types of cells are determined by the nature of the proteins present. Cells of various types have different functions because cell structure and function are closely related.
Explanation:
An image of a wooly mammoth and a mastodon is shown here. Analyze the similarities and differences between these species and
present-day elephants. Evaluate the statements below and select the one(s) that accurately describe the evolution of these
species. Select ALL that apply.
Several factors were important for the extinction of mammoths to mastodons, and natural selection of the elephant, mainly the ecosystem they lived in and the search for food.
What are the differences between the mammoth and the elephant?The mammoth is an animal that was once extinct and belonged to the genus Mammuthus and the family Elephantidae which included the proboscidians. Elephants differ from mammoths in that mammoths had their bodies covered with hair. Also, elephants are slightly smaller than mammoths.
What are the differences between the mastodon and the elephant?Both were herbivores, but the mastodons had conical-shaped teeth designed to crush leaves and branches more easily. Mammoths had rough molars, allowing them to cut through vegetation and graze like modern elephants.
Whit this information, we can conclude that several factors were important for the extinction of mammoths to mastodons, and natural selection of the elephant, mainly the ecosystem they lived in and the search for food.
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Answer: B C E
Explanation: Usatestprep
WHY (not how) is it possible for one organism to express genes from another organism? (i.e. an E.coli bacterial cell expressing a fluorescent protein from a jellyfish
Answer:
Because of the universality of the genetic code, the polymerases of one organism can accurately transcribe a gene from another organism.
Bacteria are prokaryotes that lack which of the following structures?
Group of answer choices
DNA
Cell wall
Nucleus
Ribosomes
The diagram below shows the eye, with several features labeled
which part of the eye controls how much light enters the eye?
1. Α
2. B
3. C
4. C
Data does not tell scientists what to think! However, what does the above illustrate about the importance of data in science?
The importance of data in science tails in this information can be used as empirical evidence to confirm a particular hypothesis.
What is data sciences?Data sciences refer to a branch of scientific knowledge based on the obtention and analysis of data.
Data science may involve different types of data (for example, sequencing genome data in life sciences).
In the case of sequencing genome data, this information can be used to validate the expression of a given gene in a cell type.
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According to cell theory, which are made of cells? Check all that apply.
kitten
bacteria
cactus
mushroom
rock
Answer:
Kitten
Cactus
Mushrooms
Bacteria
so all but Rock
Because only living things have cells
Enzymes are proteins that ...
A. Have specific shapes that matter
B.Can only break things down
C.Can only be used one time
D.have names that end with ose
Answer:A.
Explanation:
Enzymes have a specific shape for an active site so for the function to happen the specific shape for the substrate that can fit in the active site is needed for them to connect and propose a function.
explain why norepinephrine requires a protein receptor to exert its effects.
Answer:
I'm going off the top of my head for this one, and this is an educated guess, so check it if you would like to. When the norepinephrine binds to a protein, then the protein relays the info to the cells that are required to do the specific action. This is why we feel a sense of stress, elevated heart rates, or high alertness.
(I'm 13 so you might want to check a lot)
Which of the following attitudes is NOT important in science?
a.
curiosity
c.
creativity
b.
having a closed mind
d.
skepticism
Please select the best answer from the choices provided
A
B
C
D
Answer:
creativity
Explanation:
the creativity isn't important in science because in science we need to process methodically
The attitude that is NOT important in science is b. having a closed mind.
What is a closed mind?A closed mind refers to a person who is not willing to consider different ideas or opinions.
A closed mind cannot engage in scientific inquiries.
Scientific inquiry helps scientists to study the natural world in diverse ways before proposing explanations based on the evidence derived from their scientific activities.
Thus, important attitudes in science include:
CuriosityCreativitySkepticism.HonestyFlexibilityPersistenceOpen-mindednessTolerance of uncertaintyAcceptance of the provisional nature of scientific explanation.But, having a closed mind cannot help in science.
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Which molecule is used up in photosynthesis?
A. Oxygen
B. Water
C. Nitrogen
D. Sugar
Much appreciated
Answer:
it's water
Explanation:
the plants take water from the ground and then use it in photosynthesis to create sugar.
Answer:
A/B is used up in photosynthesis.
At a deep-ocean vent in the Eastern Pacific, the giant tube worms make up which of the following? Select all that apply. a. population b. part of a community c. part of a ecosystem
The giant tube worms make up the following:
PopulationPart of a communityPart of an ecosystemWhat is an Ecosystem?This consists of all the organisms and the physical environment with which they interact.
In an ecosystem, there is the population of organisms which live there together with various communities which was why all of the above were chosen.
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The process of photosynthesis converts carbon atoms from carbon dioxide into _______.
A.
salts
B.
sugars
C.
oxygen
D.
hydrogen
This is digital data obtained from sensors carried in satellites. It includes collecting data in the
visible and non-visible portions of the electromagnetic spectrum.
Example: Landsat image
Term: Type term here
Satellite Imagery is a type of digital data obtained from sensors carried in artificially designed satellites.
What is Satellite Imagery?Satellite Imagery refers to the images that are obtained by using artificial satellites made by humans.
Satellite Imagery includes collecting data on both the visible and non-visible portions of the electromagnetic spectrum.
Satellite Imagery is fundamental for many applications in different disciplines such as, for example, agriculture.
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