Hello who’s good at biology guys I need someone to help me with the test

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Answer 1

I Dont Even Know If Am Good In Biology Or Not

But Some Chums Might Give You A Hand


Related Questions

what is diffussion ?
Defines osmosis?
what is hypotonic solution?​

Answers

Answer:

Diffusion is the net movement of anything from a region of higher concentration to a region of lower concentration. Diffusion is driven by a gradient in concentration. The concept of diffusion is widely used in many fields, including physics, chemistry, biology, sociology, economics, and finance.

Dictionary

Definitions from Oxford Languages

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osmosis

/ɒzˈməʊsɪs/

Learn to pronounce

noun

1.

BIOLOGY•CHEMISTRY

a process by which molecules of a solvent tend to pass through a semipermeable membrane from a less concentrated solution into a more concentrated one.

2.

the process of gradual or unconscious assimilation of ideas, knowledge, etc.

A hypotonic solution has a lower concentration of solutes than another solution. In biology, a solution outside of a cell is called hypotonic if it has a lower concentration of solutes relative to the cytosol. Due to osmotic pressure, water diffuses into the cell, and the cell often appears turgid, or bloated.

In the citric acid cycle when an aldol addition occurs in a biological system, how do the amino acids contained in the Citrate Synthase enzyme help facilitate the reaction

Answers

Answer:

Citrate Synthase facilitates the formation of citrate by deprotonating Acetyl CoA and by protonating the carbonyl oxygen of oxaloacetate

Explanation:

Citrate synthase is a key enzyme in the citric acid cycle that functions to catalyze the formation of citrate from oxaloacetate and acetyl-CoA: acetyl-CoA + oxaloacetate + H2O >> citrate + CoA-SH (Coenzyme A ). This enzyme contains three amino acids at its active site that work together to catalyze the conversion of acetyl-CoA and oxaloacetate into citrate. This active site acts by abstracting (deprotonating) a proton from the alpha carbon of Acetyl CoA which serves as the nucleophile. Subsequently, the active site of the enzyme also protonates the carbonyl oxygen of oxaloacetate, which then suffers nucleophilic attack and thereby facilitating nucleophilic substitution reaction.

Which part of a seed acts as the food source for the seed as it grows underground?

Answers

The answer is a cotyledon

PLEASE HELP!!!
what protein is part of the basal lamina outside blood vessels, and activates platelets when they stick to it?
-hemoglobin
-collagen
-fibrinogen
-tissue factor​

Answers

Tissue factor, I think.

Why would a rough, steep mountain habitat have a higher rate of speciation
than a large, open grasslands habitat? I will make u brainliest
A. The mountain has less variety in the environment.
B. The mountain would cause less fragmentation.
O C. The mountain has wider range of environments.
O D. The mountain has more resources.
SUBMIT

Answers

Answer:

I think the correct answer is A

Explanation:

Answer: C. The mountain has wider range of environments.


6. What two places might a free-floating DA molecule end up?

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is there any answer choices before i start answering ur question

Identify the two genes of each parent that would always produce an ear of corn which has all yellow kernels.

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It would be YY or Yy

8. A major misconception about natural selection is that this mechanism “gives organisms what they want or need so they can adapt to an environment.” Explain why this is not correct.

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Answer:

Individuals can't change what they already have, some individuals are born with favorable traits, those get passed on while others are less likely (unfavorable traits) to get passed on.

A certain species has little genetic variation the rapid extinction of this species would most likely result from the effects of

Answers

Answer:

Environmental change

Explanation:

A species that has little genetic variation cannot evolve (change) in response to variable environmental conditions because genetic variation is the raw material on which natural selection operates to select individuals. Adaptation to changing environmental conditions only can occur when there is variation (either genetic or phenotypic variation). In consequence, a species with low genetic variation is at a high risk of extinction, especially in challenging environments.

Cellular respiration and photosynthesis are similar in that both require
O A. glucose
B. membrane proteins
C. oxygen
O D. carbon dioxide
UBMIT
12

Answers

Answer:

If you can choose 2 your answers would be A.Glucose and C.Oxygen but if not try Oxygen.

(12.02 MC)
Why are spines considered a physical characteristic adaptation in cactus?

Answers

white dense spines help reflect sunlight spines provide shade cacti stem is thick and fleshy to store lots of water stem has waxy waterproof coating to help keep water in the cacti

This sunbird has built a nest.
How does this behavior affect the survival of the sunbird population?
O A. It keeps offspring warm as they grow and develop
B. It communicates to the offspring how to reproduce.
O C. It teaches offspring how to build their own nests.
D. It helps attract a mate and produce offspring.

Answers

Answer:

your answer is  d i think

Explanation:

Answer:

It's A

Explanation:

I got it right, this one is the most logical one since the purpose of a nest is to keep the offspring warm as they grow and develop.

Hope this helps!!

I need a definition of representation and diversity

Answers

Answer:

resperation is the the action of breathing.

diversity is a range of different things.

Explanation:

Wave frequency is measured in units
called Hertz (Hz). One Hertz is defined as
one wave per second. Suppose a person
counted 10 waves passing by over a time
period of 1 second. What is the wave
frequency?

Answers

Answer:

it will be 10Hz ,because number of waves per second is 10 so we divide with 1second

The wave frequency of a wave which is passing by 10 waves over a time period of 1 second will be 10 Hertz (Hz).

What is Wave frequency?

Wave frequency can be defined as the number of waves which are passing through a fixed point in a given amount of time period. The SI unit for the wave frequency is the hertz (Hz), where 1 hertz is equal to 1 wave which is passing through a fixed point in the time period of 1 second. A higher-frequency wave has generally more energy than a lower-frequency wave with the same magnitude of amplitude.

The wave frequency of a wave which is counted to be 10 waves passing through a point in a time period of 1 second will be 10 Hertz (Hz).

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Search using the internet on how you can expand or enhance one's knowledge of animal/fish raising.​

Answers

Answer:

Fish farming involves raising a variety of aquatic animals, such as fish, mollusks and shrimps in an enclosure such as a tank or pond. With the surge in demand for healthy animal protein the  demand for fish and fish products is on the rise. Fish farms have the potential to produce fish for home consumption at about $0.90/lb which is a considerable saving when compared to supermarket prices of over $2.00/lb.

The first step for fish farming is to determine what you are going to do with your full-grown fish. You need to know the purpose, whether you are going to keep fish as a pet or for fish meat. This will decide a lot of things like the space requirements, equipment and capital requirements. If you intend to keep fish as a pet for showcase then a small tank or a backyard small fish farm is sufficient. If you intend to put a small fish farm with one or two ponds then also with a little business mindset you can market 1000 to 2000 lb of fish.  

This will also require you to set up a business entity and have a business mindset.The costs associated with raising different types of fish varies because different fish need certain temperature water to live. The type of fish also decides the requirement of equipment and the feed cost. There are lots of laws about raising fish and animals, and even more, stringent laws related to raising animals that are going to be consumed as food.

Before starting fish farms or fish hatchery of any size or type it is advisable to check local laws and the need of permits  to do so in your area.Normally you will get a license to operate your fish farm for a year which will be renewable. You need to submit the following documents to apply for the license:

Filled in application form

Sketch or aerial map of the facility layout, including dimensions

Copy of fish health certificate

Copy of stocking permit

Letter of a written permission from the landowner (in case if you are not the landowner)

Explanation

(I truly apologize if this answer is too long)

Discuss the importance of the change in CO with exercise?

Answers

Enhancing cardiac output allows you to maintain lower heart rates during physical activity. During exercise SV will increase related to the response of the increased pressure of the heart in order to supply blood to the body.

explain the following type of respiration with diagram in toad:
1..Buccal respiration
2..Cutaneous respiration
3.. Pulmonary respiration​

Answers

Answer:

1.Buccal pumping is "breathing with one's cheeks": a method of ventilation used in respiration in which the animal moves the floor of its mouth in a rhythmic manner that is externally apparent.

2.Cutaneous respiration, or cutaneous gas exchange, is a form of respiration in which gas exchange occurs across the skin or outer integument of an organism rather than gills or lungs.

3.Pulmonary ventilation is commonly referred to as breathing. It is the process of air flowing into the lungs during inspiration (inhalation) and out of the lungs during expiration (exhalation.

Yan Lang po Sana makatulung

 Which would be worse a change in DNA or a change in mRNA & why

Answers

Answer:

i think its DNA

Explanation:

im not sure

**100 POINTS** DNA is an organic molecule that is the code of life. DNA is made up of smaller molecules that form together into two chains. Those chains spiral around each other to form the DNA molecule. Which dichotomous key best describes DNA?

Answers

Answer:

Each step is based on genetic traits

Explanation:

so I think u can choose which one it is based on wht i said

Explain the difference between a data table and a graph.
When do you use a data table?
When do you use a graph?
HELP ME!!!

Answers

Answer:

A data table is a visual instrument comprised of labeled columns and rows, while a graph is a diagram showing the relation between variable quantities, typically of two variables, each measured along one of a pair of axes at right angles.

They are used for different purposes, depending on the problem

A data table is a visual instrument comprised of labeled columns and rows, while a graph is a diagram showing the relation between variable quantities, typically of two variables, each measured along one of a pair of axes at right angles.

Why was Copernicus's heliocentric model not believed until Galileo and Kepler provided mo
The model had the moon orbiting Earth.
The model was against religious teachings.
The model could not explain retrograde motion.
The model did not include all eight planets in the solar system.

Answers

Answer:

the model was against religious beliefs.

a diagram that models the process of photosynthesis is shown below complete the diagram by filling in the missing labels.
I have this so far

Answers

Answer:

reactants = carbon dioxide & water

energy source = light

waste product = oxygen

primary energy = glucose

Explanation:

The energy source is light, reactants are carbon dioxide and water, the waste product is oxygen and primary energy is glucose.

What is photosynthesis?

The sustainability of the significant number of life on Earth depends on photosynthesis. It is how almost all of the energy in the biosphere is made accessible to living beings.

All higher living forms on Earth consume photosynthetic organisms directly or indirectly since they are the primary producers that serve as the foundation of the planet's food webs.

Additionally, photosynthesis is responsible for producing virtually all of the oxygen in the atmosphere. The majority of creatures would vanish, there might soon be little food or other organic stuff on Earth, and the atmosphere would eventually be almost barren of gaseous oxygen if photosynthesis stopped.

Commonly used notation for photosynthesis is: 6CO₂ + 6H₂O → C₆H₁₂O₆ + 6O₂. This indicates that the reactants, six carbon dioxide molecules, and six water molecules, are transformed into a sugar molecule and six oxygen molecules, the products, by light energy being absorbed by chlorophyll (implied by the arrow).

The creature consumes the sugar, and as a byproduct, oxygen is produced.

Therefore, the energy source is light, reactants are carbon dioxide and water, the waste product is oxygen and the primary energy is glucose.

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If a heavy box represents a molecule which of the following represents passive transport in a cell

Answers

Answer:

um theres nothing there

Explanation:

Answer:

A

Explanation:

bc i got it right on a test :)

A solid is that form of matter that possesses the following
characteristics __.
a
Particles vibrate around fixed axes
b Definite shape
C
Definite volume
d All of the above

Answers

Definite volume is doesn’t possess a definite volume so therefore the answer is c

7. Phytoplankton + Shrimp → Snapper → Shark
There are 2,500 kcal available for the 1st trophic
level.
There are kcal available for the 2nd trophic level.
There are kcal available for the 3rd trophic level.
There are 2.5 kcal available for the 4th trophic level.
Fill in the organisms and energy amounts on the
pyramid to the right
8. Use the food chain you created in #3 and complete

Answers

Answer:

The first level is 2,500

The second is 250

The third level is 25

and the fourth level is 2.5

Explanation:

The amount of energy at each trophic level decreases as it moves through an ecosystem. As little as 10 percent of the energy at any trophic level is transferred to the next level; the rest is lost largely through metabolic processes as heat.

Am I supposed to answer #8?

The amount of energy at each trophic level decreases as it moves through an ecosystem. As little as 10 percent of the energy at any trophic level is transferred to the next level; the rest is lost largely through metabolic processes as heat.

What is an ecosystem?

An ecosystem consists of all the organisms and the physical environment with which they interact. These biotic and abiotic components are linked together through nutrient cycles and energy flows.

Moreover, 7 major ecosystems are forest ecosystem, grassland ecosystem, tundra ecosystem, desert ecosystem, freshwater ecosystem, and marine ecosystem.

Hence, healthy ecosystems clean our water, purify our air, maintain our soil, regulate the climate, recycle nutrients and provide us with food. They provide raw materials and resources for medicines and other purposes. They are at the foundation of all civilization and sustain our economies.

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Marianne is conducting an experiment on homeostasis in paramecium, which is a type of single-felled organism. Which of these observations provides the strongest evidence of a paramecium maintaining homeostasis

Answers

Hello. You did not present the answer options, which makes it difficult for you to receive a specific answer. However, I will try to help you in the best possible way.

One of the most common evidences that a paramecium is maintaining homeostasis is the pumping of water from the vacuoles present in its body.

The paramecium is a protozoan that lives in aquatic environments, mainly those composed of fresh water. The problem with this environment is that water is able to enter the paramecium organism in large quantities and this can promote the disruption of the organism through lysis of the cell. In this case, homeostasis must act quickly and pump water out of the body, through the cell vacuole.

Homeostasis is a regulatory system of the organism, which must promote the balance of the organism, whenever any external or internal factor tries to harm this balance.

HEY BESTAY I NEED UR HELP WILL MARK U BRAINLIEST

Which part of the carbon cycle shown in the figure contributes the most to the greenhouse effect?
(20 Points)


The decay process returns carbon dioxide to the soil.

The remains of dead organisms gradually change into fossil fuels.

Photosynthetic organisms remove carbon dioxide from the atmosphere.

A Burning fossil fuels and wood releases carbon dioxide into the atmosphere.

Answers

The answer is A hope that helps

Please help me ASAP thank you

Answers

1. the sun 2. decomposers 3. i’m not sure 4. photosynthesis

Grasses
Grasshoppers
Frogs
Hawks
Snakes
Decomposers
Which organisms in the food web shown above compete for the same
food source in this environment?

Answers

Answer:

Frogs and snakes.

Explanation:

I answered this question for another person, plus, this is the only reasonable answer.

Select the best answers from the drop-down menus. Brushing and flossing one’s teeth regularly prevents . It is possible to inherit this disease from one’s parents. Quitting smoking may prevent this disease or disorder of the stomach. A diet rich in fiber can be good for preventing .

Answers

Answer:

gingivitis

celiac disease

gastritis

diverticulitis

Explanation:

Other Questions
which of the following reactions would be considered to be reactant-favored reaction 4a. A + B C + Db. C + D A + Bc. C + D A + Bd. A + B C + D Mechan has a jar containing 15 counters. ere are only blue counters, green counters and red counters in the jar. Metor is going to take at random one of the counters from his bag of 12 counters. will look at the counter and put the counter back into the bag. She will look at the counter and put the counter back into the jar. Meghan is then going to take at random one of the counters from her jar of counters. a. The probability that the 3 counters each have a different colour is: __________ b. Work out how many blue counters there are in the jar: __________ During the post-World War II economic boom, which group became a new target for advertisers?a. retireesb. teenagersc. divorced womend. inner-city minorities An investment of $100 is placed into an account that earns interest, compounded annually, at a rate of 5% for 7 years. The amount, A, in the account can be modelled by the function A = 100(1.05)', where t is the time, in years. What is the domain of this function? Use a double integral to find the area of the region.The region inside the circle(x 4) + y = 16and outside the circlex + y = 16 The population multiple regression model includes a response variable, a constant term, multiple explanatory variables, and an _______________ term It takes a force of 5.00 NN to stretch an ideal spring 2.00 cm. What force does it take to stretch the spring an additional 4.00 cm? Which of these is an advantage of the disc brake system over drum brakes?a. disc brakes transfer less heat to the atmosphereb. disc brakes reduce the likelihood of the brake fadec. disc brakes do not need maintenanced. disc brake do not create annoying squeals and squeaks A $2,700 loan at 7.2% was repaid by two equal payments made 30 days and 60 days after the date of the loan. Determine the amount of each payment. Use the loan date as the focal date. (Use 365 days a year. Do not round intermediate calculations and round your final answer to 2 decimal places.) company a supplies 40% of the computers sold and is late 5% of the time. company b supplies 30% of the computers sold and is late 3% of the time. company c supplies another 30% and is late 2.5% of the time. a computer arrives late - what is the probability that it came from company a? 3. Define monetary policy. Give examples of how the Federal Reserve can control the amount of money in circulation. Yvonne and Simon form Ion Corporation. Yvonne transfers equipment (basis of $180,200 and fair market value of $270,300). Simon invests $216,240 of cash. They each receive 100 shares in Ion Corporation, worth $216,240, but Yvonne also receives $54,060 of cash from Ion.Calculate Ion Corporation's basis in the equipment and determine Yvonne and Simon's basis in the Ion stock. Ion Corporation has a basis of $234260 in the equipment. Yvonne has a basis of $______________ for her stock and Simon has a basis of $216,240 for his stock. The least-squares regression line of the daily number of visitors, y, at a national park and the temperature, x, is modeled by the equation =85.2 + 103.x. What is the residual value of the day that had a temperature of 82F and 893 visitors? O-929.8 O-36.8 00 O36.8 929.8 Creger Corporation, which makes landing gears, has provided the following data for a recent month: Budgeted production 1,700 gears Standard machine-hours per gear Budgeted supplies cost 5.2 machine-hours $5.80 per machine-hour 1,600 gears Actual production Actual machine-hours 8,800 machine-hours $ 49,672 Actual supplies cost (total) Required: Determine the rate and efficiency variances for the variable overhead item supplies and indicate whether those variances are favorable or unfavorable. (Indicate the effect of each variance by selecting "F" for favorable, "U" for unfavorable, and "None" for no effect (i.e., zero variance). Input all amounts as positive values.) Variable overhead rate variance Variable overhead efficiency variance why do we depreciate the Capital expenditure duringeconomic modeling of expenditure in oil and gas 1. Consider the experiment of tossing two coins where C= heads, += tails. Let A be the event that not a single head comes up. Let B be the event that exactly one head falls.a. 2/4 b.3/4 c.0 d. 1/42. A rat is placed in a box with three push buttons (one red, one white, and one blue). If it pushes two buttons at random, determine the following. What is the probability that he will press the red key once?a. 1/3 b.1/9 c. 4/9 d. 5/9 what is the main idea of the reading about louis pasteur? a. louis pasteur wanted to test ideas in a laboratory. b. louis pasteur designed and conducted an experiment to test the theory of spontaneous generation. c. louis pasteur was the inventor of pasteurization. d. louis pasteur was a scientist. Suppose we are testing the null hypothesis H0: = 16 against the alternative Ha: > 16 from a normal population with known standard deviation =4. A sample of size 324 is taken. We use the usual z statistic as our test statistic. Using the sample, a z value of 2.34 is calculated. (Remember z has a standard normal distribution.)a) What is the p value for this test?b) Would the null value have been rejected if this was a 2% level test? For each of the following studies, identify the appropriate test or confidence interval to be run.Note: the number in the answer refers to the number of populations in the study (1 population or 2 populations).Group of answer choicesA study was run to estimate the average hours of work a week of Bay Area community college students. A random sample of 100 Bay Area community college students averaged 18 hours of work per week with a standard deviation of 12 hours. Find the 95% confidence interval.[ Choose ] 2 - mean - interval (t-dist) 1 - mean - test (z-dist) mean difference - interval (t-dist) 2 - proportion - test 1 - mean - interval (z-dist) 1 - proportion - interval 2 - proportion - interval 1 - mean - test (t-dist) 2 - mean - test (t-dist) mean difference - test (t-dist) 1 - mean - interval (t-dist) 1 - proportion - testA study was run to determine if more than 30% of Cal State East Bay students work full-time. A random sample of 100 Cal State East Bay students had 36 work full-time. Can we conclude at the 5% significance level that more than 30% of Cal State East Bay students work full-time?[ Choose ] 2 - mean - interval (t-dist) 1 - mean - test (z-dist) mean difference - interval (t-dist) 2 - proportion - test 1 - mean - interval (z-dist) 1 - proportion - interval 2 - proportion - interval 1 - mean - test (t-dist) 2 - mean - test (t-dist) mean difference - test (t-dist) 1 - mean - interval (t-dist) 1 - proportion - testA study was run to determine if the average hours of work a week of Bay Area community college students is higher than 15 hours. It is known that the standard deviation in hours of work is 12 hours. A random sample of 100 Bay Area community college students averaged 18 hours of work per week. Can we conclude at the 5% significance level that Bay Area community college students average more than 15 hours of work per week?[ Choose ] 2 - mean - interval (t-dist) 1 - mean - test (z-dist) mean difference - interval (t-dist) 2 - proportion - test 1 - mean - interval (z-dist) 1 - proportion - interval 2 - proportion - interval 1 - mean - test (t-dist) 2 - mean - test (t-dist) mean difference - test (t-dist) 1 - mean - interval (t-dist) 1 - proportion - testA study was run to determine if Peralta students average less hours of sleep a night than Cal State East Bay students. A random sample of 100 Peralta students averaged 6.8 hours of sleep a night with a standard deviation of 1.5 hours. A random sample of 100 Cal State East Bay students averaged 7.1 hours of sleep a night with a standard deviation of 1.3 hours. Can we conclude at the 5% significance level that Peralta students average less sleep a night than Cal State East Bay students?[ Choose ] 2 - mean - interval (t-dist) 1 - mean - test (z-dist) mean difference - interval (t-dist) 2 - proportion - test 1 - mean - interval (z-dist) 1 - proportion - interval 2 - proportion - interval 1 - mean - test (t-dist) 2 - mean - test (t-dist) mean difference - test (t-dist) 1 - mean - interval (t-dist) 1 - proportion - testA study was run to estimate the proportion of Peralta students who intend to transfer to a four-year institution. A random sample of 100 Peralta students had 38 intend to transfer. Find the 95% confidence interval. One characteristic necessary for an observational study is that the researchers do not know if participants are in the control or treatment group as they have been randomly assigned.