differences between reproduction in mammals and amphibians.​

Answers

Answer 1

Answer:

the answer is a little weird but hope this helps

Explanation:

While all of these animals reproduce sexually (meaning that the species consists of males and females and mating involves the fetilization of eggs by sperm), reptiles and mammals reproduce through internal fertilization (inside the female) whereas amphibians practice external fertilization.

Answer 2

Answer:

While all of these animals reproduce sexually (meaning that the species consists of males and females and mating involves the fetilization of eggs by sperm), reptiles and mammals reproduce through internal fertilization (inside the female) whereas amphibians practice external fertilization


Related Questions

After examining the picture, which of the following formations is most likely the youngest?

bed B
bed D
d-i-k-e M
bed C

Answers

Answer: The real answer is Bed D

bed d is wrong! the answer is dk M

What property of water allows the
oceans’ water to store carbon dioxide?

Answers

Answer:

The difference in pCO 2 is related to the amount of carbon that is converted from CO 2 gas to other nongaseous carbon species in the sea water, like bicarbonate and carbonate ions. This so-called "buffer capacity" is what allows the oceans to hold so much carbon.

Explanation:

why does paper bread tableyellow?

Answers

Answer:

yes

Explanation:

i did this and got it right.

Which cellular waste product do the kidneys remove from the blood? oxygen carbon dioxide urea undigested food materials

Answers

Answer:

Urea.

Explanation:

Answer:

Urea, I studied

Explanation:

will mark brainliest

Answers

hahah you don't know this? can't imagine being that dumb must suck.

which of the following is not an acquired trait of a human​

Answers

Answer:

Acquired traits develop during life (not in your DNA) and answers are below:

Explanation:

Examples:

-Things you learned

(riding a bike, reading, writing, painting, drawing, cooking, school subjects, etc.)

-Things that happened to you

(short hair, broken bone, plastic surgery, dyed hair, etc.)

Hope this helps!

what is fart? explain and what do you call it?

Answers

Answer:

Farts — also called flatus (say: FLAY-tuss) or intestinal (say: in-TESS-tuh-null) gas — are made of, well, gas! When you eat, you don't swallow just your food. All of these gases in the digestive system have to escape somehow, so they come out as farts! Gases are also what can make farts smell bad.

The burning and cutting of the trees will affect the carbon cycle by adding___________ to the atmosphere in the case of burning the trees and by not removing enough __________ from the atmosphere in the case of cuting the trees.

Answers

Answer:

The burning and cutting of the trees will affect the carbon cycle by adding carbon dioxide to the atmosphere, in the case of burning the trees and by not removing enough carbon dioxide from the atmosphere in the case of cuting the trees.

Explanation:

When burning and cutting down trees, these actions significantly alter the carbon cycle, adding carbon dioxide in the case of burning trees and preventing said carbon dioxide from being eliminated when cutting down the trees that, through the process of photosynthesis, are responsible for cleaning the atmosphere transforming carbon dioxide into oxygen.

Where these processes lead to carbon cycle stagnation in the short and long term.

16. Which phenomenan shows the effect of light dispersion? *​

Answers

A the blue sky is the right answer

1) What is the monomer (building block) of a protein?

Amino Acids
Nucleotides
Legos​

Answers

Answer:

Amino acids

Explanation:

Amino acids are the building blocks of a protein

Common covalent bonds include


 MgO
 KF
 CH4

Answers

Answer:

CH₄

Explanation:

The four C-H bonds are covalent;

The C atom shares electrons with each of the four H atoms.

cholesterol is synthesized by all animal cells and is an essential structural component of animal cell's membrane cholesterol is the most common steroid and mainly synthesized in the liver cholesterol also serves as a processor for several important biological compounds including all except insulin ,vitamin D, bile salts , testosterone.​

Answers

Answer:

Aug 11, 2017 — Vitamin D3 is produced in the skin from 7-dehydrocholesterol by UV irradiation, 1,25(OH)2D reduces 1,25(OH)2D levels in cells primarily by  Animals null for calbindin 9k (the major calbindin in mammalian abnormal vitamin D and/or calcium metabolism in some but not all of these patients (24-26). Cholesterol, a waxy substance that is present in blood plasma and in all animal tissues.  it is a primary component of the membrane that surrounds each cell, and it is  synthesizes bile acids, steroid hormones, and vitamin D. Cholesterol  are essential energy sources and structural components of all life

why is blood pressure an example of negative feedback?

Answers

Answer:

Regulation of blood pressure is an example of negative feedback. ... If blood pressure is too high, the heart rate decreases as the blood vessels increase in diameter ( vasodilation ), while the kidneys retain less water. These changes would cause the blood pressure to return to its normal range.

Explanation:

do all planets move in the same way and the same speed

Answers

Answer:

no

the speed is affected by the mass of the planets and venus moves in the opposite direction to the other plants

Do we use all brains all the time? If so why?

Answers

Answer:

Yes because we use our brain to write, read, draw, drive a car, or pretty much anything we do. Even sleeping our brain is working. But at a slower pace. The brain never stops working.

Explanation:

yes of course . All the time everyday every second . Our brains help us make decisions and we makes decisions every minute ! Hope this helps . There is sooo many reasons !

1. What caused the Lake Missoula

Answers

Answer:

The lake was the result of an ice dam on the Clark Fork caused by the southern encroachment of a finger of the Cordilleran Ice Sheet into the Idaho Panhandle. It was the largest ice-dammed lake known to have occurred.

Hope this helps:)

What is the driving force for plate tectonics?


A.Gravity slab pull
B.The gravity of the Moon and Sun
C.Heat from the Earth's core causing mantle convection

Answers

Answer:

Option C

Explanation:

Driving force for plate tectonics is the "convection in the Earths mantle" or option C. Convection is the transfer of heat due to the movement in molecules also causing hot to rise and cold to sink. Convection currents cause the tectonic plates to move because the currents rise to the Earths surface forcing the plates to drive away from each other also known as seafloor spreading.

Hope this helps

The diagram below illustrates the movement of glucose across a cell membrane. Which two processes are most directly represented in this diagram?

Answers

Answer: molecule transport and energy use

Explanation: I got the answer from castle learning

Which of the following scenarios does NOT illustrate a danger bats can pose to miners?

A. Bats can swarm, causing miners to fall off equipment.

B. Bats can release feces that have mold spores, causing miners to contract respiratory diseases.

C. Bats can attack, causing miners to contract rabies.

D. Bats can communicate by echolocation, causing miners to lose their hearing.

Answers

Answer:

C. Bats can attack, causing miners to contract rabies.

Explanation:

Scenarios that does not illustrate a danger bats can pose to miners is bats can attack, causing miners to contract rabies.Thus, option C is correct.

What is food web?

Food web has been defined as the natural way of the interconnection of the food chain that has been represented by the help of graphs and it has been shown that in the ecological community who eats whom. The food web has been also known as the consumer consuming system. The main advantage of the food web has the organism present on the top or the organisms who belongs to the higher trophic level can provided food or feed the organisms from lower trophic level or from other food chain.

The permanent food web has been increased due to the presence of large or complex food web. There are mainly three steps in the food web or food chain and they are producers, consumers, as well as  decomposer. The producer belongs to the trophic level, the consumers belongs to the second and third trophic level, and the decomposers belongs to fourth and fifth trophic level.

Since there are more number of  species they have more oppurtunity on which ones to eat  because food webs with many species (biodiverse) are more stronger than those with few species.

Therefore, Scenarios that does not illustrate a danger bats can pose to miners is bats can attack, causing miners to contract rabies.Thus, option C is correct.

Learn more about food web on:

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What happens when the nucleotides in a DNA synthesis reaction are radioactive?

Answers

If a cell is grown in a medium containing radioactively labeled thymidine--which is one of the nucleotides needed to synthesize DNA--after the first round of replication, all of the DNA molecules will have one labeled strand and one unlabeled strand. Why? Because the radioactively labeled thymidine will be incorporated into the newly synthesized strands. If the cell undergoes ANOTHER round of replication in the same medium, the same sequence of events will occur.

hurry due in five min plz

Answers

Answer:

It's either D or B, I'm not really sure

Explanation:

In 1972, EPA issued a cancellation order for DDT based on its adverse environmental effects, such as those to wildlife, as well as its potential human health risks. Since then, studies have continued, and a relationship between DDT exposure and reproductive effects in humans is suspected, based on studies in animals.

Human health effects from DDT at low environmental doses are unknown. Following exposure to high doses, human symptoms can include vomiting, tremors or shakiness, and seizures. Laboratory animal studies showed effects on the liver and reproduction. DDT is considered a possible human carcinogen.

Carrie conducted an experiment to see if listening to different types of music would affect a person’s pulse. Her hypothesis was that pulse rate would change with different types of music. She had 10 volunteers. Each of the first 5 volunteers listened to seven different music selections for 30 seconds each. The person’s pulse was taken before the music and after each 30-second interval of music was completed. The other 5 volunteers did not listen to music and had their pulse taken every 30 seconds for 5 minutes. Based on her experiment, Carrie concluded that a person’s pulse rate did change when the person listened to different types of music. Identify the control group, the experimental group, the independent variable, and the dependent variable.

Answers

Answer:

Independent variable: MUSIC

Dependent variable: PULSE

Control group: The 5 volunteers that did not listen to music.

Experimental group: The 5 volunteers that listened to seven different music selections for 30 seconds each

Explanation:

- Independent variable in an experiment is the variable that the experimenter changes or manipulates in order to bring about a measurable response. In this experiment, the independent variable is DIFFERENT TYPES OF MUSIC THAT WAS PLAYED BY CARIE.

- Dependent variable is the variable that responds to the changes made to the independent variable. It is the variable being measured in an experiment. The PULSE, which was measured in this experiment, is the DEPENDENT VARIABLE.

- Control group is the group of an experiment that does not receive the experimental treatment. In this experiment, the GROUP OF 5 VOLUNTEERS THAT DID NOT LISTEN TO ANY MUSIC is the CONTROL GROUP.

- Experimental group is the group that is subjected to the experimental treatment in an experiment. In this experiment, the GROUP OF 5 VOLUNTEERS THAT LISTENED TO SEVEN DIFFERENT TYPES OF MUSIC IS THE EXPERIMENTAL GROUP.

How were Redi’s and Pasteur’s experiments different?
A. Redi studied broth, but Pasteur tested meat.
B. Pasteur studied flies, but Redi tested meat.
C. Pasteur tested for microorganisms, but Redi studied larger organisms.
D. Redi tested for microorganisms, but Pasteur studied larger organisms.

Answers

Answer:

C. Pasteur tested for microorganisms, but Redi studied larger organisms. that is the correct answer i promise

Explanation:

An organism that has different alleles - one dominate and one recessive it's called

Answers

Answer:

An organism which has two different alleles of the gene is called heterozygous. Phenotypes (the expressed characteristics) associated with a certain allele can sometimes be dominant or recessive, but often they are neither.

Explanation:

help please it’s due today and i dunno what to do.......

Answers

Answer:

I don't know if I understood that completely, but I think that there will be more liquid water if the temperature gets higher.

Explanation:

We currently have the ice caps, those are just ice. If they melt then they will be a liquid. there might be more gas, but it is mostly ice right now.

Describe the polar regions. Help please!

Answers

Answer:

Polar region, area around the North Pole or the South Pole.The northern polar region consists mainly of floating and pack ice, 7–10 feet (2–3 m) thick, floating on the Arctic Ocean and surrounded by land masses.

Climate - long cold winters, with annual temperatures mostly below freezing.

Soil - the soil is covered in ice throughout the year.

Plants - hundreds of species of moss, algae and lichen survive the harsh conditions of the Polar biome.

where do veins always go

Answers

Answer:

Capillaries connect the arteries to veins. The arteries deliver the oxygen-rich blood to the capillaries, where the actual exchange of oxygen and carbon dioxide occurs. The capillaries then deliver the waste-rich blood to the veins for transport back to the lungs and heart. Veins carry the blood back to the heart.

Explanation:

like in your body? can you be more descriptive? like, veins go to your heart? but I need more description?

What two electron carrying particles ("batteries!") does the electron transport chain use to get the energy it needs to
make ATP?

Answers

Answer:

The electron transport chain can convert the energy from one glucose molecule's worth of FADH2 and NADH + H+ into as many as 34 ATP.

Explanation:

Answer:

The electron transport chain can convert the energy from one glucose molecule's worth of FADH2 and NADH + H+ into as many as 34 ATP

Explanation:

The process of forming ATP from the electron transport chain is known as oxidative phosphorylation. Electrons carried by NADH + H+ and FADH2 are transferred to oxygen via a series of electron carriers, and ATPs are formed. Three ATPs are formed from each NADH + H+, and two ATPs are formed for each FADH2 in eukaryotes.

. Which statement accurately describes the energy needs for photosynthesis and cellular respiration?

Answers

What are the statements?

A plant can have green (G) or yellow (g) leaves. it can also have a long (k) or short (k) stem. A scientist is preparing a Punnett square for a dihybrid cross of a plant with a genotype GGKk what possible gametes can the plant produce?

Answers

Answer:

gk, gK

Explanation:

GK, Gk, gk, gK are the possible gametes can the plant produce. So, the correct option is A.

What are Gametes?

Male and female germ cells are created in the anther and ovule of flowering plants, respectively. Pollen grains, which are discharged from the anthers at anthesis, contain male gametes.

The generative cell relocates through the pollen tube formed by the tube cell during pollen germination to reach the ovary's base where it will be fertilized. The generative cell splits into two male gametes as it moves through the pollen tube.

In the given example, the following gametes could be created while creating a Punnett square:

=> GK (Green and long) (Green and long)

=> Gk (Green and short) (Green and short)

=> gK (Yellow and long) (Yellow and long)

=> gk (Yellow and short) (Yellow and short)

Therefore, the correct option is A.

Learn more about Gametes, here:

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Your question is incomplete, most probably the complete question is :

A plant can have green (G) or yellow (g) leaves. It can also have a long (K) or short (k) stem. A scientist is preparing a Punnett square for a dihybrid cross of a plant with a genotype GGKk. What possible gametes can the plant produce?

A) GK, Gk, gk, gK

B) GG, Kk

C) GK, Gk

D) GK, gk

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See the case 1 and 2 These are the question I will give brainliest A. If you remove a bulb from case 1 , will the other bulb still light? Explain why.B. If you remove a bulb from case 2, will the other bulb still light? Explain why C. In which circuit do you think he bulbs glow. Brighter? Explain whyPoints and brainliest Look at the graphic.A map of the United States showing the Great Plains in the middle of the country, Eastern Cities on the East Coast, and Midwestern Cities in between. An arrow between the Great Plains and Midwestern Cities pointing right is labeled Cattle. An arrow between the Midwestern Cities and Eastern Cities pointing right is labeled Meat.According to this graphic, what was the role of midwestern cities in the meatpacking industry?They were a major source of cattle for the meatpacking industry.They processed meat to be sold in the Great Plains.They processed meat to be sold in eastern cities.They served as a stopping point for farmers bringing their cattle to eastern cities. Explain the difference between courts of original jurisdiction, appellate courts, and courts of last resort, often called supreme court. Use always, sometimes or never to make a true statement:Intersecting lines are _____________ coplanar.Two planes _____________ intersect in exactly one point.Three points are _____________ coplanar.A plane containing two points of a line _____________ contains the entire line.Four points are _____________ coplanar.Two lines _____________ meet in more than one point.Two skew lines are __________ coplanar.Line TQ and Line QT and are _________ the same line. What were the decisions made at the continental congress? PART A: According to Henry, what are the means (Paragraph 4) the colonies have todefeat the British?A. The colonies have resources and knowledge of the land on their side.B. Henry believes they have the sense of justice and reason on their side.C. Henry believes they have God and faith on their side to assist them, implyingthat he thinks the British do not.D. The colonies have the people willing to fight, as well as allies, and a just cause ontheir side. analyze the difference between business and labor? will give brainliest what fraction is equivalent to 0.56 Change the following sentence into negative.1.He has a science fiction.2.Peter has a dog at home.3.Either Krishna or Mina will win the match.4.There are a lot of animals in the zoo.5. Lucky doesn't Elizabeth answers it.6. He used to sing 7. Drive quickly.8. He told a story and so did his mother.9. She has a lot of rice. I need help on this question can you tell me what the blanks are pls Choose the graph that has a slope of 1/3 and a y-intercept of 1. 30% of a number equals 30. what is the number? Genetics is the study of genes and their inheritance. True or False What is the value of r2s for r=10 and s=2? Write the equation of the line in slope intercept form that passes through the two points: (1,-6) and (-3,2)Please explain so I can understand this The roots of a function f(x) are shown below.-- 61,124Which of the following could be f(x)?A f(x) = x2 + 6x + 3Bf(x) = x2 - 6x + 3f(x) = x - 6x-3Df(x) = x + 6x-3 .MARY WAS TOLD TO RUN AROUND THE TRACK 5 TIMES BY HER COACH. ONCE AROUND THE TRACK IS 5/6 OF A MILE. MARY WAS ONLY ABLE TO RUN AROUND THE TRACK 4 1/3 TIMES. HOW MANY MILES TOTAL DID MARY RUN? Help pleasee I need help to write the formulas im so lost Shown is a trianglex + 202x-202x 40Work out the value of