HELPPPP!!!!! ASAPPPP!!!!

Which group of organisms evolved first?
reptiles
amphibians
fish
mammals

Answers

Answer 1
Fish are the first kind of animals to evolve, they evolved into amphibians and it goes so on and on
Answer 2

Answer:

fish

Explanation:


Related Questions

which of the following best represents a water molecule ​

Answers

A water molecule consists of one oxygen atom bonded to two hydrogen atoms by covalent bonds

ASAP ASAP ASAP ASAP HELP HELP HELP PLSLSLSLS

Answers

Answer:

You are correct!!

Explanation:

Metamorphic rocks form when rocks are subjected to high heat, high pressure, hot mineral-rich fluids or, more commonly, some combination of these factors

The answer you have is correct

10. A mutation in which types of cells would only affect the organism and not future generations?

Answers

Answer:

Somatic mutations are mutations that occur in body cells, that is the cells that do not make gametes. These mutations are not passed on to further generations; for example, if a mutation that changes a gene in a skin cell would not affect your children because skin cells don't produce gametes.

Explanation:

Answer:

Explanation:

Explanation; Somatic mutations are mutations that occur in body cells, that is the cells that do not make gametes. These mutations are not passed on to further generations; for example, if a mutation that changes a gene in a skin cell would not affect your children because skin cells don't produce gametes.

In the laboratory, yeast cells are usually grown at a temperature of 25oC. A scientist wanted to determine if yeast cells would reproduce faster or slower when the temperature was dropped to 15oC. The same number of yeast cells were placed in the same medium with the same amount of nutrients. One sample was kept at 25oC and the other one was kept at 15oC. The number of yeast cells was counted every hour for an eighteen hour period.

Answers

Answer:

This question is incomplete, however, it is asking to identify the following variables:

Independent variable: Temperature

Dependent variable: Number of yeast cells

Constants: same amount of nutrients, same number of yeast cells, same medium

Explanation:

- Independent variable is the variable that the experimenter changes or manipulates in order to bring about a measurable effect. In this experiment, the TEMPERATURE at which the yeast are kept is the independent variable.

- Dependent variable is the variable that responds to the changes made to the independent variable. It is the variable that is measured by the experimenter in the experiment. In this case, The NUMBER OF YEAST CELLS was counted, hence, it is the dependent variable.

- Constants are variables that are kept unchanged or same for all groups by the experimenter in order not to influence the experiment's outcome. In this case, the CONSTANTS are: same amount of nutrients, same number of yeast cells, same medium etc.

Cells use a molecule called (DNA / RNA / ATP / CMP) to store and release energy like a battery. The energy is stored in chemical bonds between (nucleotide / oxygen / phosphate / ribose) groups of the molecule, and the energy is released when the chemical bonds are broken.

Answers

Answer:

Cells use a molecule called ATP to store and release energy like a battery. The energy is stored in chemical bonds between phosphate groups of the molecule, and the energy is released when the chemical bonds are broken.

Explanation:

The Adenosine Triphosphate (ATP) is a molecule made of adenine, ribose, and three phosphate groups, which are the ones that store the energy in its bounds.  The ATP is the molecule that provides the energy to the different processes that happen in a cell. The molecule is made from the glycogen, fats, and carbohydrates that the body has absorbed in the intestines. When the body needs energy, the ATP loses one or two phosphates, becoming ADP and AMP. When the phosphorylation happens, which is the loss of phosphate, the energy is released.

Help!! does anyone know the answer??

Answers

Answer:

i think its osmosis

Explanation:

A. Osmosis, is the correct answer

What does a number in front of a molecular formula stand for?

Answers

Answer:

The small number behind each element symbol designates the number of atoms of each element in a chemical formula. If there is no number, it is assumed there is only one of those elements. A large number in front of a compound designates how many units there are of that compound.

Which statement best describes a property of water?

A. Liquid water holds its shape
B. Water changes to a gas as it boils
C. Ice becomes a liquid when it freezes
D. Solid ice changes shape with its container

Answers

So imma gonna go with B cuz it sounds like a property

Which of the following describes Mendel's law of segregation?

During DNA replication, the alleles separate into haploid daughter cells

Alleles of a trait can never be separated from each other.

During meiosis, the two alleles for a trait separate into different gametes


During meiosis, two alleles that were separated come back together

Answers

from what lesson is this from? Just need to know

Can you list some facts about Food webs.

Answers

Answer:

A hawk eats a snake, which has eaten a frog, which has eaten a grasshopper, which has eaten grass.

Explanation: A food web consists of all the food chains in a single ecosystem. Each living thing in an ecosystem is part of multiple food chains. Each food chain is one possible path that energy and nutrients may take as they move through the ecosystem.

A food web is where is constants all food chains that are in a single echosystem

As cells increase in size, what happens to the amount of DNA the cells has?

A) they have more DNA
B) they have the same amount of DNA
C) they get less DNA

Answers

Answer: try B

Explanation:

As a cell's size increases, the amount of DNA stays the same. The information used to build the molecules needed for cell growth is in the DNA. If a cell grows too large, an "information crisis" would occur.

 now that you know the bacteria in each tank drag the tanks to put them in the correct order

Answers

Answer:

1st ammonia nitrifying

2nd nitrite nitrifying

3rd denitrifying

Explanation:

_______________ is the name for the process of clearing natural vegetation and replacing it with concrete and buildings.

Answers

The practice of removing natural vegetation and replacing it with concrete and structures is known as urbanization. This is the correct answer to fill in the blank.

What are the primary factors causing urbanization?

Industrialization, commercialization, rural-urban migration, lifestyle changes, career opportunities, social advantages, etc. are the primary reasons of urbanization. The process of urbanization is when people move from rural to urban areas for a variety of reasons.

What results did urbanization produce?

Urban areas can expand due to a rise in the population or because people move there. Urbanization frequently causes habitat loss, deforestation, and freshwater extraction from the environment, which can reduce biodiversity and change species ranges and interactions.

To learn more about natural vegetation visit:

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What would happen to a cell if placed in each of the following solutions:

a. Isotonic solution:


b. Hypotonic solution:



c. Hypertonic solution:

Answers

Answer:

Isotonic: there would be no net flow of water, the cell will stay stable

Hypotonic: the cell will fill up with water and burst

Hypertonic: The cell will shrink because it loses water

Explanation:

Explain the Importance of water in your body

PLEASE HELP RN ASAP

Answers

Answer:

Your body uses water in all its cells, organs, and tissues to help regulate temperature and maintain other bodily functions. Because your body loses water through breathing, sweating, and digestion, it's important to rehydrate by drinking fluids and eating foods that contain water.

Answer:

Water is needed for your digestive track as it digests foods. As water is also needed for each cell to properly function in your body.

name of these parts of a prokaryote cell pleaseee i’ll give you brainliest and 20 pts.

Answers

Answer:

Explanation:

Ok

Im not sure if anyone knows this or not.
Can someone please help me with 1 and 2! If u r correct ill mark u was the best answer

Answers

I'm pretty sure the answer to 1 is A, but I know for a fact that soil contains microorganisms and microbes.

The answer to question 2 is D (Porosity)

4 ( 3x+10y=54 and x=y+5 )

Answers

Answer:

x−y=9 , x+y=6

4x+4y=1

, 6x−y=1

x2−y=2

, 2x−y=−1

Explanation:

Question 6 of 10
What are the characteristics of a flash flood? Select the three correct
answers.
O A. Occurs quickly
B. Occurs only during a thunderstorm
O C. Lasts a short time
D. Has a large volume of water

Answers

Answer: A, C, D

Explanation:

Give brainliest please!

Please help me it’s due today , there’s number 10 also

Answers

Answer:

1. Chloroplast

2. Photosynthesis

3. 6CO₂ + 6H₂O → C₆H₁₂O₆ + 6O₂

4. Sunlight

5. Glucose

6. Oxygen

7. Carbon Dioxide

8. Water

9. Energy

10. Mitochondrion

11. Cellular Respiration

12. C₆H₁₂O₆ + 6O₂ → 6CO₂ + 6H₂O

Answer:

1. Chloroplast

2.photosynthesis

3. 6 CO₂ (carbon dioxide) +12 H₂O (water) + light -->C6H12O6 (glucose/sugar) +6 O₂ (carbon dioxide) + 6 H₂O (water)

4. Light

5 and 6) Glucose (C₆H₁₂O₆) and O₂

7 and 8) CO₂ and Water (H₂O)

9) energy (ATP)

10) Mitochondria

11) Cellular respiration

12) I think you need the equation as well:

Explanation: C₆H₁₂O₆ (glucose) + 6O₂ (oxygen) --> 6CO₂ (Carbon Dioxide) + 6 H₂O (water) + ATP (energy)

1. Chloroplasts have thylokoids or stacked membranes like it has.

2. Photosynthesis is the process of converting light into usable energy.

3. That is the equation of photosynthesis. Their are different ways of writing this for example: 6 CO₂ + 6H₂O + light -->C₆H₁₂O₆ + 6 O₂ which is balancing the water. Check to see what your teacher used in the book/notes.

4. Light is required for photosynthesis and the sun is providing it.

5 and 6) The mitochondria uses both of these in its processes that were first made in photosynthesis.

7 and 8) Both are created by mitochondria and are used in chloroplasts.

9) Energy is produced in the mitochondria with help from the Chloroplast.

10) It is usually depicted with those lines in it.

11) That is the process's name.

12) This is the equation of cellular respiration.

I GOVE BRAINLIEST!!!

List three things you learn today about meiosis, two things you found interesting or that you would like to learn more about and one question you still have.

Please just give me random stuff to say

Answers

Answer:

Meiosis is important because it ensures that all organisms produced via sexual reproduction contain the correct number of chromosomes . Meiosis also produces genetic variation by way of the process of recombination .

Explanation: Meiosis is important for three main reasons : it allows sexual reproduction of diploid organisms , it enables genetic diversity , and it aids the repair of genetic defects .

Plss follow me and Mark as brainlest

Answer:

Describe the three ways meiosis produces genetic variability. We have seen that meiosis creates variation three ways: crossing over, mutations caused during crossing over, and independent assortment.

which molecules are not able to permeate the cell membrane

Answers

Answer:

Small uncharged polar molecules, such as H2O, also can diffuse through membranes, but larger uncharged polar molecules, such as glucose, cannot. Charged molecules, such as ions, are unable to diffuse through a phospholipid bilayer regardless of size; even H+ ions cannot cross a lipid bilayer by free diffusion.

Explanation:

(Giving brainliest!!)

Explain why the sun appears to be the brightest star in the sky. Relate your explanation with an example, such as streetlights

Answers

Answer:

when you look a streetlight from far it will be some how not bright. the other stars are far from planet earth . but the  sun is near

Explanation:

8. What phase of mitosis is the cell pictured below in? Explain how you know that.

Answers

Answer:

Anaphase.

Explanation:

We can see that the separated sister chromatids are being pulled by the cell's centrosomes (microtubules) from both poles of the cell.

define magnification and cisternae?​

Answers

Answer:

Magnification In general terms, it can be said that how big or small the image appears with respect to the object is called magnification of the object.

Explanation:

It is represented as the ratio of the height of the image to the ratio of the height of the object. Magnification is denoted as the letter 'm'.

Magnification is the process of enlarging the apparent size, not physical size, of something. This enlargement is quantified by a calculated number also called "magnification".

A cisterna refers to a flattened membrane disk that makes up the Golgi apparatus. A typical Golgi has multiple stacks of anywhere from 3 to 7 cisternae stacked upon each other like dinner plates.The cisternae also carry structural proteins important for their maintenance as flattened membranes and their stacking upon each other.

Five students get sick with a cold after a weekend field trip to the aquarium with their classmates. Which best explains why these students became sick?

A contact with an infected fish

B. contact with an infected person

C. contact with contaminated food

D contact with a contaminated water​

Answers

Answer:

The answers is B

Explanation:

I just took a test that had this question on it.

B. contact with an infected person

Transmission occurs when an infected person interacts or exchanges bodily fluids with another person.  This can happen before the infected individual even realizes they are sick.

After a weekend field trip to the aquarium with their classmates, five pupils catch a cold. Because they may have come into contact with an infectious person, students became ill. Students became sick as a result of B. contact with an infected person

For more information:

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HELP!!!!!!!!!!!!!! And go check out my other questions

Answers

The answer would be B!!

Reflex action
(a)
Miriam accidently touches a hot pot and quickly withdraw her hand. Describe
the series of events in the nervous system which causes Miriam to react thi
way

Answers

Answer:

Reflex action/reflex arc/reflex (allow "involuntary") The stimulus (heat) is detected by temperature receptors in the skin. This causes impulses to travel along a sensory neurone to the spinal cord, due to chemical changes across the synapses. Here they go along a relay neurone, and then are sent via a motor neurone to the effector (an arm muscle in this case). The muscle contracts, moving the hand away and preventing further harm.

pls help i’m taking my exam!!

Scientific laws are____

explanations offered of
specific relationships

not applicable in all situations

non observable phenomenon

descriptions of specific relationships

Answers

Not applicable ): in all situations

Answer:not applicable in all situations.

Explanation:I checked it

What cell structure controls all life processes for the cell?

1. Cell Membrane
2. Cytoplasm
3. Vacuole
4. Nucleus​

Answers

Answer:

4

Explanation:

The nucleus controls all of the cell's activities, such as growth and metabolism, using the DNA's genetic information. Within the nucleus is a smaller structure called the nucleolus, which houses the RNA (ribonucleic acid).

Other Questions
Most polyatomic ions are cations.TRUEFALSE which is bigger 7.5 or 7/10 PLEASE HELP! I NEED THIS DONE BY TOMORROW! 1. In January, a mobile phone shop sold 100 phones. In February, they sold 92 phones. Represent this difference as a percentage change.2. A piece is cut from a 130cm length of wood so that the remaining length is 104cm. What percentage of the wood has been cut off? 3. There are now 30 boys in a class that originally had 24 boys in it. What was the percentage increase in the number of boys in the class? 4. Last year, there were 300 students in Year 7. This year there are 315 students. Show that this is a 5% increase. 5. A piece of art was bought for 600. Six months later, it was sold for 675. What percentage of profit did the seller make? 6. In a sale, trainers originally costing 70 are reduced to 49. Calculate the percentage change. 7. Josh invests 3500. When his investment matures, he receives 4200. Work out the percentage increase in his investment. 8. A car company bought a car for 8000. Two years later they sold the car for 7200. Calculate their percentage loss. Please help. I need a smart person to help :) What coefficient should be placed before 02?2S+ __02 2S03 When is the best time of day for Christina to study?in the morning, instead of going to swim practicein the late afternoon, instead of relaxingin the early evening, during dinnerin the late evening, before bed What were the two important documents published in 1776? Which document could be considered a cause and which one could be considered an effect? Explain. What is the first step in solving the inequality. 3253x Which of the following is the quotient of the complex below (3+5i)devided (1 -2i) Eight friends share 64 tickets to the school carnival. Each friend has the samenumber of tickets. How many tickets does each friend have?9768 Both speed and velocity measure how fast something is moving. However, since speed is not a _ it does not require an _ IF YOU WANTED TO CREATE IN A LABORATORY A ROCK THAT HASLARGE CRYSTALS, WHAT CONDITIONS WOULD YOU HAVE TOCONTROL? EXPLAIN YOUR ANSWER. what is the main idea of a text? how do authors develop a main idea? Please I really need help on this one Divide. Give the exact answer, written as a decimal. 0.05 4.32 what type of EM waves are used to observe objects from outer space Which of the following are common medical supplies? Check all that apply.A. medical containersB. scalesC. X-ray machinesD. antiseptics The length and width or a rectangular courtyard is 40 feet and 30 feet, respectively. In order to make the courtyard larger, an additional 15 feet is being added to the width Which event occurred BEFORE President Truman decided to build apresidential Library?A) Congress passed the Presidential Library Act.B)The Eisenhower Presidentiat Library was completed:President Roosevelt built his presidential library.D)President Truman donated his papers to thegovernment The difference of H.C.F. and L.C.M. of the numbers 12 and 16 is: Pls help