the key character that reptiles have and amphibians do not have is a/an

Answers

Answer 1

Answer:

Reptiles have scales, and their skin is dry. Amphibians do not, and their skin is often moist with mucus, which keeps them from drying up.


Related Questions

Peppered moths are a common food source for birds and other animals. Based on the pictures, do you think that one color pattern will be more beneficial than the other for the moth’s survival?

Answers

Answer:

but obviously it would be the black pattern because of the new terrain so that way the dark pattern peppered moths will live longer than the original

Explanation:

How does kinetic energy affect temperature? simple answer pls. PLS HELPP!!

Answers

Answer:

The faster the particles are moving, the higher the temperature. That is, the average kinetic energy of a gas is directly related to the temperature.

Explanation:

why does modification of roots occur? give any two / causes class 8​

Answers

- The roots modify to absorb + transport water & minerals from the soil to different parts of the plant

- They are modified for support, food storage, and respiration

- Roots are modified into other forms to do different functions than their normal functions

- Modification in root can also occur when there is a permanent change in the structure of the root system

(Gathered + reworded information from a few different users who answered the same question elsewhere on Brainly.)

Have a nice day!

     I hope this is what you are looking for, but if not - comment! I will edit and update my answer accordingly. (ノ^∇^)

- Heather

Cellular organelles have different structures. Mitochondria, for example, possess highly folded inner membranes in addition to their outer membranes. Vacuoles, on the other hand, are only surrounded by a single-layer membrane; they do not have an inner membrane.

Why do cellular organelles have different structures?
A.
Organelles that are less important to the cell have less sophisticated structures.
B.
All of the organelles in a particular organism are identical, but organelles in different organisms are unique.
C.
The structure of a cellular organelle mimics the appearance of the organism.
D.
The structures of cellular organelles are related to their functions.

Answers

Answer:

D

Explanation:

Different oganelles do their own function.

The structures of organelles differ because the structures of  organelles are related to their functions.

What are the functions of cell organelles?

An organelle is a subcellular structure that has one or more specific functions in a cell, such as an organelle in the body. The most important cell organelles are the nuclei, which store genetic information.

Organelles are small structures in the cytoplasm that perform functions necessary to maintain homeostasis in the cell. They are involved in many processes, such as energy production, the formation of proteins and secretions, the destruction of toxins, and responding to external signals.

Examples of membrane-bound organelles include the nucleus, endoplasmic reticulum, Golgi apparatus, mitochondria, plastids, lysosomes, and vacuoles.

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The concentration of sodium on the inside of the cell is 20 mM. The outside of the cell has a sodium concentration of 115 mM. Which mechanism of ion uptake would best move sodium from the inside of the cell to the outside? osmosis diffusion passive transport active transport.

Answers

Answer:

It's active transport

Explanation:

The mechanism of ion uptake that would best move sodium from the inside of the cell to the outside is active transport.

What do you mean by Ion uptake?

Ion uptake may be defined as the process of movement of ions from one side of the membrane to the other.

Active transport helps in the movement of ions against the concentration gradient. It also requires energy. The active transport of small molecules or ions across a cell membrane is generally carried out by transport proteins that are found in the membrane.

Therefore, the mechanism of ion uptake that would best move sodium from the inside of the cell to the outside is active transport.

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What is a strength in the figure?

(1 point)

The figure shows structures in a cell.


The figure shows the steps involved in DNA replication.

The figure shows stem cell differentiation.

The figure shows where mitosis occurs in the cell cycle.

Answers

Answer:

The figure shows where mitosis occurs in the cell cycle

Explanation:

The strength in the figure is the figure shows where mitosis occurs in the cell cycle and the figure shows stem cell differentiation. Thus, option D is correct.

What is mitosis?

A cell prepares for cell division by replicating its chromosomes, segregating them, and creating two identical nuclei during the mitotic process. The cell's contents are typically evenly divided into two daughter cells with identical genomes after mitosis.

A cell copies each chromosome during mitosis and distributes one copy to each of its two daughter cells. With regard to our example of an instruction manual, it is crucial that each person receive a duplicate of each page.

Each chromosome must be delivered to each of our cells exactly once, without any errors, or the cells may have problems carrying out the genetic instructions.

Therefore, Mitosis occurs after G2 stage in the cell cycle.The strength in the figure is the figure shows where mitosis occurs in the cell cycle and the figure shows stem cell differentiation. Thus, option D is correct.

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can someone can help me with this pls I need that right now

Answers

Answer:

1) chloroplast

2) chemical

3) photosynthesis

4) solar

5) roots

6) energy

7) glucose

8) oxygen

9) sugar

10) stoma

Explanation:

Here ya go, hope this helps you :)

The shape of the earth’s orbit is known as______ it can change from almost a perfect circle to
The shape of earth's orbit is known as
elliptical (egg like).
O obliquity
O precession
O orbit
O eccentricity

Answers

Answer:

A.

Explanation:

Because the other ones do not make sense.

which process is most critical for different types of tree cells to develop?

Answers

cell differentiation! :)

considering the various theories, the energy used in forming organic molecules in the primitive atmosphere could have come from all except

Answers

Answer:

the correct answer is sound

_____ mimic the process of natural evolution to generate solutions to optimization and search problems.

Answers

Search algorithms are used to generate solutions to optimization and search problems.

Search algorithms that mimic the process of natural evolution. Search algorithms can be used to generate solutions to optimization and search problems using techniques such as mutation, selection, crossover, and chromosome.

Find out more at: https://brainly.com/question/12946457

Question 4 of 10
A cell membrane is very specific about what it allows across. How does this
help the cell?
A. It helps the cell absorb as many different molecules as possible.
оо
B. It is better for the cell if most molecules are prevented from
entering.
C. Transport proteins allow only enzymes to pass through the
membrane.
D. The cell works better when it contains fewer proteins.
SUBMIT

Answers

Answer:

the answer is B

Explanation:

bcuz its right

the entire period between one m phase and the subsequent m phase is called what?

Answers

Explanation:

Interphase: The entire period between one M phase and the subsequent M phase is called: interphase.

HOPE IT HELPS

a. both
b. neither
c. the inside of the cell
d. the beaker​

Answers

Answer:

c

Explanation:

po ang tamang sagon po

During DNA replication, the ____ strand is assembled in the ____ direction from helix unwinding and is synthesized by ____ replication.

Answers

Leading Same Continuous

Explanation:

;)

During DNA replication, the leading strand is assembled in the same direction from the helix unwinding and is synthesized by continuous replication.

What is DNA replication?

The biological process of creating two identical copies of DNA from a single original DNA molecule is known as DNA replication. All living things replicate their DNA, which is the most crucial component of biological inheritance.

Because each of the two copies of DNA has one strand that is old and conserved and the other is newly created at the time of replication, this process is known as semiconservative replication.

Thus, during DNA replication, the leading strand is assembled in the same direction from the helix unwinding and is synthesized by continuous replication.

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A particular diploid plant species has 48 chromosomes, or two sets. A mutation occurs and gametes with 48 chromosomes are produced. If self-fertilization occurs, the zygote will have _____ set(s) of chromosomes.

Answers

Answer:

4 sets

Explanation:

Both gametes will each have 48 chromosomes (2 sets). So if fertilisation were to occur, two of those gametes (both with 2 sets each) the zygote will have 4 sets.

If self-fertilisation occurs, the zygote will have two set(s) of chromosomes.

What is self fertilisation?

Self-fertilization, also known as self-pollination, is a type of sexual reproduction in which a hermaphroditic or monoecious organism fertilizes its own gametes. This means that the male and female reproductive organs are present in the same individual, allowing for self-fertilization to occur.

In plants, self-fertilization can occur through a variety of mechanisms, including self-pollination by wind or gravity, or by the transfer of pollen from the anther to the stigma of the same flower. Self-fertilization can also occur in animals that are hermaphroditic, such as some species of snails and slugs.

Self-fertilization can have both advantages and disadvantages for the organism. It can ensure reproduction in isolated or low-density populations, but it can also limit genetic diversity and increase the risk of inbreeding depression.

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the male reproductive system and the urinary system share which organ?

Answers

Which part of the urinary system is shared with the reproductive system in males? Well, the (urethra) conducts urine for the urinary system and semen for the reproductive system in males.

The answer is urethra

what is the genotype of a ""normal"" male with no hemophilia a?

Answers

Answer:  XHY

Explanation:

The hemophilia disease will be present in the progeny if they solely carry the Xh allele/alleles and lack the XH gene, the genotype of man is XhY.

What is hemophilia?

Haemophilia was once thought of as an example of Mendelian inheritance since the disease phenotype is caused by a mutation in just one gene (F8 or F9).

But research has shown that the illness has strong genetic and phenotypic heterogeneities. The gene for either the factor VIII protein or the factor IX protein has a mutation (different from normal) in hemophilia patients.

The mutation makes the body manufacture insufficient amounts of factor VIII or factor IX.

Therefore, A normal phenotype will result from having one XH allele because this condition is recessive, the genotype of a man is XhY.

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what plant cell organelle performs photosynthesis?

Answers

in plants and algae, which developed much later, photosynthesis occurs in a specialized intercellular organelle which is the Chloroplast.

what will happen to the cell?

A. it will shrink
B. nothing
C. it will explode​

Answers

Answer:

B

Explanation:

Practice 4: Match each description with the correct term.
A. Ultraviolet radiation
B. Visible radiation
C Infrared region
D. Soler radiation
LL
1. High energy invisible radiation located atter visible radiation most of ur chis song
ozone layer
2. Colorful radiation capable of being detected by human eyes
3. Low energy invisible radiation located before red visible radiation
4. A broad range of radiation, including infrared, Visible, ultraviolet and other room

Answers

Ultraviolet : 1
Visible radiation : 2
Infrared region : 3
Soler radiation : 4

They’re already done..?

Which does not contain cytoplasm? A. liver cell
B. palisade tissues C. red blood cell D. xylem vessel

Answers

Answer:

dfhzklgrwjhigwruighwreuygbwgerg

Explanation:

egg hjeghbhuwbguygb8qyugfbqey7g

Xylem because it is considered dead since it consists of dead narrow vessels and tracheids

Around what time was the cure for scurvy found?

Answers

Explanation:

During the Age of Sail, it was assumed that 50 percent of the sailors would die of scurvy on a major trip. A Scottish surgeon in the Royal Navy, James Lind, is generally credited with proving that scurvy can be successfully treated with citrus fruit in 1753.

Answer:

in 1747 by James Lind ......

how long does one smoke session stay in your system urine

Answers

According to Mayo Clinic Proceedings, weed is detectable in urine for the following amounts of time after last use: Occasional users (up to three times a week): 3 days. Moderate users (four times a week): 5 to 7 days. Chronic users (daily): 10 to 15 days.

we inhale o2 and we exhale co2. carbon dioxide is produced __________.

Answers

Probably “anaerobically”

why does the presence of telomeres protect the ends of linear chromosomes?

Answers

To prevent the loss of genes as chromosome ends wear down, the tips of eukaryotic chromosomes have specialized DNA “caps” called telomeres. Telomeres need to be protected from a cell's DNA repair systems because they have single-stranded overhangs, which "look like" damaged DNA. ...

what basic unit of heredity is found in segments of dna

Answers

Answer:

Genes

Explanation:

Genes are found in DNA and are the basic unit of heredity.

The misshapen version of a protein that causes properly folded proteins to misfold is called a ________.

Answers

that's called a "prion" :)

why is a chromosome smaller than dna

Answers

Answer:

A chromosome is not smaller than DNA

Explanation:

In the nucleus of each cell, the DNA molecule is packaged into thread-like structures called chromosomes. Each chromosome is made up of DNA tightly coiled many times around proteins called histones that support its structure.

what is the term for a group of different species in a given area?

Answers

Answer:

biocoenosis, biotic community, biological community, ecological community, or life assemblage

Explanation:

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