As frog embryo develops in its egg, its cells divide.


Which term best describes the structure that is replicated during this cell division?


mitochondria


nuclei

chloroplast

cell wall

Answers

Answer 1

Answer:

In the frog tadpole the cartilage cells increase by mitotic division of the fully-formed and functional cell: in addition there are centers of proliferation consisting of small. rapidly-dividin$ cells.


Related Questions

The elements neon and argon are not reactive. Which hypothesis BEST explains this?



They are not stable atoms.


They are not readily available on Earth.


They tend to give up all of their valence electons easily.


They have the maximum possible number of electrons in their outermost shell.

Answers

Answer:

They have the maximum possible number of electrons in their outermost shell.

Explanation:

There are only a few elements that are less reactive than noble gases. The reason for this is that they are filled with electrons, which are referred to as valence electrons.

Essentially, the more electrons on the outermost shells, the less reactive.

Hope this helps! Let me know if you require further information...

- profparis

describe the damage which you can see and effects of the damage on crops by insects pest .​

Answers


Insects can become pests in the crops when they cause damage to crop plants. The signs of damage vary, typically depending on the way that the insect feeds on the plant. Damage from insects with chewing mouthparts typically appears on leaves or stems as ragged edges, holes, or other missing tissue

hope this helps

In men, the primary source of androgens is the ____, while the ____ is/are where the remaining androgens are produced.

Answers

The primary source of androgens is the Testes.

The Adrenal gland  is/are where the remaining androgens are produced.

The Adrenal Gland The Adrenal glands  produces the androgens The Androgens are  hormones that regulates the development and maintenance of male reproductive characteristics.The main source of the androgens is the testes.

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Explain how placing cloned cells in nutrient broth to multiply relates to your overall goal of purifying the fluorescent protein

Answers

Placing cloned cells in nutrient broth to multiply relates to your overall goal because this favors the bacteria by providing an environment in which it can grow.

What is fluorescent protein?

Generally, it part of a structurally homologous family of proteins that have the distinctive trait of being self-contained.

In conclusion, This favors the bacteria by providing an environment where growth, in order to encourage the production of more proteins for the study is possible.

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what is considered to be incomplete dominance?

Answers

Incomplete dominance is a form of Gene interaction in which both alleles of a gene at a locus are partially expressed, often resulting in an intermediate or different phenotype.

Which process creates variation in genetic material?.

Answers

Answer:

the process of recombination

Explanation:

Meiosis is important because it ensures that all organisms produced via s3xual reproduction contain the correct number of chromosomes. Meiosis also produces genetic variation by way of the process of recombination

What is the purpose using lime water in release of carbon dioxide experiment​

Answers

Limewater can be used to detect carbon dioxide. If carbon dioxide is bubbled through limewater then it turns from clear to cloudy/milky in color. This is why limewater used in a simple respirometer can show that more carbon dioxide is present in exhaled air compared to inhaled air.

You go for a run on Mount Elden. As you work to summit the peak, you notice your respiratory rate has increased drastically to supply your body with oxygen, and similarly, you know that your bronchioles have dilated. What caused this effect

Answers

Answer:

The reduction in oxygen as you advance upwards

What are two examples of nitrogenous wastes that are excreted by the kidneys?.

Answers

Answer:

ammonia,urea and uric acid

Why are the supraorbital height and thumb indexes important measurements in
comparing primates

Answers

The supraorbital height is an important measurement in comparing primates because they give information related to the size of the skull above the eyes.

What do you mean by Primates?

Primates may be defined as those organisms which generally have flexible hands and feet with opposite first digits, good eyesight, and, in the higher apes, a highly developed brain.

As primates have an internal system, it is required to measure their skull size, thumb length, etc. So, the above techniques are used for measurement and comparison.

Therefore, it is well described above.

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Anna runs 5 km in 20 minutes. What is her speed in kilometers per hour?

Answers

That would be 5 Km/20 minutes = 0.25 Km per minute, or a quarter of a kilometer in 1 minute. This would be the average speed per minute. To get it per hour, we know there are 60 minutes in hour, so... 0.25 Km/min x 60 min/hour = 15.00 Km/hour

Answer:

15 km/h

Explanation:

5 km in 20 min

5km is 5000m and 20 min is 20×60 =1200s

5000÷1200= 25÷6 m/s

To convert m/s to km/h we multiple by 18/5

25÷6×18÷5

15 km/h.

Please give me brainliest. :-)

the diagram shows a human body system. Which of the following gives the main function of the system shown?
A. preventing and fighting diseases
B. carrying oxygen to cells and waste from cells
C. controlling the functions of the other body
D. breaking food into a usable form of energy for cells
(btw i don’t know if this is biology or chemistry)

Answers

Answer:

Explanation: D  breaking food into a usable form of energy for cells

(06.03 MC)
Sickle cell anemia is known to run in a family. A pedigree chart for this family is shown below.
Parents
Offspring
What percentage of the offspring
are carriers of the disease but do not have it?
00%
O 25%
O 50%
© 100%

Answers

Based on the pedigree, the percentage of offspring who are carriers of sickle cell anemia is 50%.

What is sickle cell anemia?

Sickle cell anemia is a disease of the red blood cells in which mutations in the haemoglobin results in inability of the red blood cells to carry oxygen efficiently to the cells.

Based on the pedigree chart, the carriers of sickle cell are those that are half shaded black.

Two out of four of the offspring are shaded this way.

Percentage = 2/4 × 100% = 50%.

Therefore, the percentage of offspring who are carriers is 50%.

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Is it true that The median is the middle number in a data set when the data are arranged in
numerical

Answers

Answer:

No

Explanation:

u must list the numbers from least to the greatest and than find the middle number so that will be the median.

Which type of intermolecular attractive force operates only between polar molecules?.

Answers

Answer:

Dispersion Forces are present inbetween any molecules

London dispersion forces occur in all molecules including polar molecules

Which of the following is a nonrenewable resource? a. hydropower b. biomass c. geothermal power d. coal please select the best answer from the choices provided a b c d

Answers

Answer:

Coal

Explanation:

Coal is classified as a nonrenewable energy source because it takes millions of years to form.

If the order of base pairs in a DNA molecule is changed, what might occur?

Answers

Answer:

When you change the order of the base pairs in an organism, that is called a mutation. There are three types of mutations: a deletion, an addition, and a substitution. In a deletion, one of the three bases in a codon is pulled out, or deleted.

Explanation:

Which of these anthropoid groups consists of primates who are mostly tree dwellers and whose forelimbs and hind limbs are about equal in length?.

Answers

Answer:

this was sooooo long ago i forgot how to do this

Explanation:

During apoptosis, which cellular organelle does the work of breaking up the nucleus and causing the cell to die?


Question 2 options:


Golgi apparatus



mitochondrion



ribosome



lysosome

Answers

Answer:

B) Mitochondrion

Explanation:

Mitochondria play a pivotal role in apoptosis. Apoptosis or programmed cell death can be initiated by both intracellular and extracellular signals. Mitochondria are responsible for mediating apoptosis initiated by intracellular signals. These are membrane-bound, rod-shaped organelles found in most eukaryotic organisms.

The sympathetic axons extend to which blood vessels of the kidney?.

Answers

Answer:

The hilus is the point of entry and exit of the renal arteries and veins, lymphatic vessels, nerves, and the enlarged upper extension of the ureters.

1. Identify the different types of mediated and online communication channels. Discuss the advantages and disadvantages of each.

Answers

Mediated communication channels include telephone, letters, audio/video cassettes, radio, televisions, etc. while online communication channels websites, social media, E-mail, etc.

What do you mean by Mediated communication?

Mediated communication may be defined as any circumstances where a technological medium is presented in face-to-face interaction.

Advantages of Mediated communication channels:

People can swap, store, edit, broadcast, and copy any written documents.Information can pass out to maximum people in a very short period of time. It requires less maintenance and cost.

Disadvantages of  Mediated communication channels:

It lacks true human contact.Sometimes false or fraudulent pieces of information spread that cause severe harm to people and their psychology. There may be an absence of any regulation or prevention of mishappening.

Advantages of Online communication channels:

Cost-effective and supporting during unfavorable times. It promotes globalization.It has long-term productivity and efficiency.

Disadvantages of Online communication channels:

It steals your privacy. It lacks a sense of humor, therefore,  there's a big risk of misunderstanding.It lacks physical contact which must be more effective in any means.

Therefore, it is well described above.

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What would the population density of whitetail deer in an area be if you had 60 deer living in a 30 acre area.

Answers

I think the answer is 2 deer per acre, but check other sources before answering.

What material is too important to ever leave the nucleus? A. DNA B. Protein. C. Ribosomes D. Chromosomes

Answers

A. DNA is too important to ever leave the nucleus.

DNA material is too important to ever leave the nucleus. Hence the correct option is A.

DNA (Deoxyribonucleic Acid) is a crucial molecule found within the nucleus of cells. It carries genetic information and instructions necessary for the growth, development, functioning, and reproduction of living organisms. The information encoded in DNA determines an organism's traits, characteristics, and overall biological processes.

DNA's essential role in inheritance and cellular activities makes it too important to ever leave the nucleus. While other cellular components like proteins, ribosomes, and chromosomes are important, DNA is the primary genetic material that must remain securely stored within the nucleus.

Hence the correct option is A.

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Describe what corn, dogs, and genes have in common

Answers

Artificial Selection or “ Selective Breeding”. aka the process by which humans use animal breeding and plant breeding to selectively

Which of the following is not an effector?
A. Skin B. Tongue C. Inner ear D. Diaphragm

Answers

Answer:

It should be C. inner ear

Explanation:

according to the web

Blood glucose begin to increase after a meal. As a result, glucagon levels must _________ while insulin levels must ________ in order to maintain metabolic homeostasis.

Answers

If glucose begin to increase after a meal, glucagon levels must decrease while insulin levels must increase in order to maintain metabolic homeostasis.

What is homeostasis?

Homeostasis is the process by which a stable internal environment is maintained irrespective of the changes in external conditions.

The regulation of sugar level in the blood is one of the homeostatic responses. Insulin and glucagon are two hormones used to perform this task of blood sugar regulation.

Insulin is an hormone that reduces blood sugar level by stimulating the conversion of excess sugar to glycogen.Glucagon, on the other hand, increases blood sugar by converting glycogen back to sugar.

Therefore, if glucose begin to increase after a meal, glucagon levels must decrease while insulin levels must increase in order to maintain metabolic homeostasis.

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3. Did trilobites and dinosaurs live at the same time?​

Answers

Explanation:

No! After the dinosaurs died out, nearly 65 million years passed before people appeared on Earth.

Spores are produced in a pine cone-like structure by club mosses.
True or False?

Answers

Answer:  

The answer is true If that is not the answer I am sorry

Explanation:

[tex]\bold{Heya!}[/tex]

→ Answer :-

True.

Explanation :-

Mosses have only one chloroplast per cell.

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[tex]\underline{Answer :}[/tex]

Jaceysan ~

what happened around 2.5 billion years ago that lead to a tremendous increase in the amount of oxygen in earths atmosphere?

Answers

Answer:

The Great Oxidation Event.

Explanation:

i hope this helps

Which pollution type resulted in the most hypoxic waters? Support this with evidence from your data.

Answers

The pollution types that will result in most hypoxic waters is :

Fossil fuel burning and Agricultural runoff

Hypoxic water

Hypoxic waters are waters with low concentration of oxygen and this can be caused by the presence of excessive nutrients such as nitrogen. and also can be caused by layering. These are caused by saline gradients.

The excessive nutrients present in hypoxic water support the growth algal and eutrophication.

Hence we can conclude that The pollution types that will result in most hypoxic waters is : Fossil fuel burning and Agricultural runoff

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Options related to your question is missing hence I have provided a general answer to your question

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I WILL GIVE YOU 5 STARS ON YOUR PROFILE COMMNET I WILL ALSO GIVE A THANK YOU ON YOUR ACC AND COMMENT!!!! Which environmental issue did President Kennedy champion? the advancement of agricultural practices the establishment of national seashores the protection of national parks the development of new plant species What causes the frequent migration of animals in Africa?O A. Monsoon seasonsO B. Global warmingO C. Political instabilityD. Flooding and drought cycles Twain finally gets excited about his career as Which of the following sets of 3 side lengths could form a unique triangle?O side lengths: 18 feet, 9 feet, 6 feetO side lengths: 12 feet, 9 feet, 4 feetO side lengths: 6 feet, 3 feet, 2 feetO side lengths: 24 feet, 14 feet, 4 feet HELP!!!!!!!!!!!!!!!!!!!!!!!!!!!!! _7x+4= Noah writes the equation 3(x+7)=57 to represent the situation. Use the distributive property to write this equation another way. The product of 4 and 3 is raised to the 5thpower. Which expression shows this?A (4 X 3) 5B(4/3)5C 4 X 35D 4/35 Explain ONE historical development that contributed to the dissolution of empires after World War II D definition 48Which statement best describes how President Kennedy'sperspective shapes his message in the passage?A He presents a call to action for everyone in the country.B He describes how Congress will take the lead on an issue.C He suggests that strong laws are what the country needs.D He wants to emphasize past problems in American history. ?Pls anyone answer.... How does the readers talking speed affect how well the audience connect with the speech? What effects did collectivization have on ukraine? Which description most accurately describes the motions for the calculation -5+ (-37)? How do you calculate the average power, current, potential difference of an AC generator Sheree purchased a digital camera for $367.99. She received a manufacturers $45 mail-in rebate and a $25 rebate from Jacks Camera Store. What is the final price? Complete the following sentence.13 cm8 cm8 cmThe composite figure is made up of a rectangular prism and a force and ___ work together cause objects to move or to stay in place One example of us foreign aid is economic sanctions. military training. low tariffs. free trade.