Atoms of which two elements have a combined total of 23 protons?


Boron, B, and carbon, C



Sodium, Na, and magnesium, Mg



Copper, Cu, and zinc, Zn



None of these

Answers

Answer 1
Answer is sodium, Na, and magnesium, Mg

Related Questions

In elephants, poofy tails (T) are dominant to scraggly tails (t) A poofy tailed mother is matedwith a scraggly tailed bull. Since elephants do not have a large amount of offspring, theyproduced two puffy tailed calves.

Answers

so what’s the question.. why?

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Many substances become more ductile as the temperature is increased.

A. True
B. False

Answers

True

materials are more ductile when hot and at room temp become more brittle

hope this helps!

Answer:

It's true

Explanation:

I don't really know, it just sounds right

I've lost my charisma

A skin cell has just divided. In which order will its daughter cells undergo the next steps of the cell cycle?
A. Separation of cell contents➡️separation of chromosomes➡️cell growth and DNA replication

B. Cell growth and DNA replication➡️ Separation of cell contents➡️ separation of chromosomes

C. separation of chromosomes➡️ Cell growth and DNA replication➡️ separation of cell contents

D. Cell growth and DNA replication➡️ separation of chromosomes➡️ separation of cell contents

Answers

Answer:

madre mía el bicho and is B

A bacteria structure involved in motility.

Answers

Answer:

flagella

Explanation:

Thin long thread like structure that help in locomotion in bacteria.


Question 21
Neurons of the cerebral cortex never dip into the medulla.
O True
O False

Answers

Answer:

False

Explanation:

The cerebral cortex refers to the outer layer of the brain. This layer is formed by a thin film of nervous tissue that surrounds the surface of the cerebral hemispheres, with primates having a much more developed cerebral cortex than other animals.  

the cerebral cortex is a thin layer of neurons and neuronal connections which is embedded in the neocortex(the neuronal cells of the cerebral cortex which form in the deep layer), it is not homogeneous, since it is made up of six layers of cells, each with specific and specific functions.

Where do consumers get most of their nitrogen?

Answers

Answer:

Consumers eat plants or other animals to get their nitrogen.

Explanation:

Throw one for the real one wanna see my grills

Answers

Hello Senor! I would very much love to see it!

Answer:

dayum

Explanation:

please mark me as brainliest :)

The above graph shows how temperature affects the rate of a reaction that uses the catalase enzyme. What trend is shown by the graph?
A.
Between zero and twenty-seven degrees Celsius, the rate of the reaction increases as the temperature increases.
B.
Between thirty-seven and sixty degrees Celsius, the rate of the reaction increases as the temperature increases.
C.
Between zero and twenty-seven degrees Celsius, the rate of the reaction decreases as the temperature increases.
D.
Between sixty and one hundred degrees Celsius, the rate of the reaction decreases as the temperature increases.

Answers

Answer:

the answer is A.

Explanation:

B and C are wrong because they are describing the opposite of what is happening in the graph. D is wrong because there is no change in the reaction rate between 60 degrees and 100 degrees.

The rate of the reaction rises with temperature between zero and twenty-seven degrees Celsius, hence option A is correct.

How does enzyme activity is affected?

At various temperatures, catalase functions in different ways. The catalase enzyme becomes more active as the temperature rises from 0°C to about 30°C Up to 100°C, and catalase activity declines as the temperature rises.

The hydrogen bonds between molecules of hydrogen peroxide relax as the temperature rises toward the optimal point, facilitating catalase's reaction with the molecules.

Temperature raising speeds up a process, and lowering temperature slows it down. If the temperature rises over the optimal range, the enzyme denatures and its structure is destroyed.

Therefore, but extremely high temperatures can denature an enzyme, causing it to lose its form and cease functioning. Every enzyme has a preferred pH range, hence option A is correct.

Learn more about enzymes, here:

https://brainly.com/question/13529188

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Study the energy pyramid.

In this pyramid, what level is the frog?

Answers

Answer:

Tertiary consumers i think

Which type of stem supports giant trees?
A. herbaceous
B. gummy
C. woody
D. leafy

Answers

i’m pretty sure the answer to this is woody. hope this helps!

The type of stem that supports giant trees is woody, which is option C. Woody stems are the type of stems that support giant trees, so the correct option is option c.

Woody stems are characterized by their hardness and rigidity, which are due to the presence of wood tissue. This wood tissue provides structural support and allows the stem to grow thicker and stronger over time. Giant trees, such as oak, maple, pine, and redwood trees, have woody stems that enable them to reach great heights and support their extensive branching systems. Herbaceous stems, on the other hand, are softer and more flexible. So the correct option is option C.

Learn more about the woody stem here.

https://brainly.com/question/16059531

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from which part of the alimentary canal!
is this cross section taken​

Answers

Answer:

I believe this is a traverse cross section of the gut.

Explanation:

fI cant tell for sure given it is not labeled with the submucosa or ILM but the shape and characteristics portray that. If this is not correct then respond with a comment as it could be a section. I have included a photo for refrence for this section

Gas, coal and other minerals are non-renewable resources. They take way too long for more of them to be made for us to use them.
True
False

Answers

That sentence is true

PLEASE HELPP ILL GIVE BRAINLIST!!​

Answers

C. the alge, zooplankton, insect, and bluegill populations would all be affected.

Answer:

i think it is c i hope this helps

Explanation:

what is the name of the substance that facilitates the action of lipase​

Answers

Answer:

The Pancreatic Lipase.

Explanation:

I am not completely sure, its been a while. I really hope this helps

Answer:

the pancreatic lipase

Explanation:

In all the laboratories the benches are placed at right angles to windows. Why

Answers

Answer:

in case of emergency

Explanation:

which of the following events does not occur in spermatogenesis ​

Answers

Answer:

The mitochondria and Golgi apparatus are packaged into the head of the sperm.

Explanation:

Spermatogenesis is the production of male germ cells. Sufficient stimulation with sex hormones, especially testosterone, and a lower temperature, which is achieved by placing the testicles in the scrotum, are required for the correct course of spermatogenesis. Sperm production has three phases: reproductive, growth and maturation. At the beginning of sperm development are spermatogonia, which are male primordial cells. They have a spherical shape and are located at the edges of the seminal canals. Spermatogonia is mitotically divided. On the one hand, in order to preserve their numbers, and on the other hand, their division produces primary spermatocytes, which lie above the layer of spermatogonia. Primary spermatocytes are diploid, but after the first meiotic division, haploid secondary spermatocytes are formed from them. They still have double chromatids, so a second meiotic division soon occurs, the product of which is spermatids. Spermatids are already fully haploid and do not divide further. Spermatids then undergo a process of spermiogenesis, in which the nucleus condenses, forming a flagellum and losing most of the cytoplasm and some organelles. Immature sperm travel through the seed-forming canals to the epididymis, where they are definitively matured. This whole process takes about 72 days.

Which of the following does NOT occur during interphase?

1.each chromosome replicates

2.the nucleus disappears

3.microtubules extend from centrosomes

4.centrosomes are duplicated​

Answers

Answer:

The nucleus disappears

Explanation:

The nucleus does not disappear in interphase but instead, the cell grows and splits to make another duplicate of the cell. Which means the cell will also split to make another duplicate nucleus.

Cancer is a disease of the cell cycle. Which of the following is NOT true of cancer cells? Cancer cells engage in uncontrolled cell division. Cancer cells ignore signals that should cause them to stop dividing Cancer cells exit the cell cycle (stop dividing) when abnormal cellular activity is deteced.

Answers

Answer:

Cancer cells exit the cell cycle (stop dividing) when abnormal cellular activitiy is detected is your answer.

Explanation:

This is the answer because cancer cells are what cause tumors which are basically when cells are dividing uncontrollably. Cancer cells never ever exit cell cycle they are always repeating it causing abnormal production of cancer cells so the last answer cancer cells exit the cell cycle is false making it the answer for this question.

Provide one example of Mutualism.
You must explain: The two organisms, how they both benefit, and any other necessary information to explain their interaction.Immersive Reader

Answers

Answer:

Cattle and egret

Explanation:

Mutualism is a type of symbiotic relationship involving two organisms whose actions cause them to benefit from one another. In other words, both organisms do one another a favour, hence, the relationship is said to be MUTUAL.

- An example of a mutualistic relationship is that of CATTLE AND EGRET. Cattle gets infested by certain parasites like ticks and fleas, which feeds on their blood. Egrets are bird species that flock around cattle to feed on these insect parasites. This relationship is mutual because, egrets help the cattle get rid of their parasite problem (cattle benefits) while the cattle provides food for the egrets when they harbor these parasites on their body (egret benefits).

When the North Pole is tilted closest towards the sun, it is possible for areas within the Artic Circle to experience 24 hours of sunlight.
A. True
B. False

Answers

Answer:

please give me brainlist and follow

Explanation:

From the North Pole, the sun is always above the horizon in the summer and below the horizon in the winter. This means the region experiences up to 24 hours of sunlight in the summer and 24 hours of darkness in the winter.

I think now you can choose it is true or false

Anything that elicits an immune response is called a

Answers

Answer: antigen. brainliest?

Explanation:

By which process do plants lose their water to atmosphere

Answers

Answer:

I believe your answer is evaporation

Explanation:

the liquid inside the plant is heated by the sun and evaporates into the atmosphere by the way please DONT click on link answers!

Sanjay is travelling on his cycle and his​

Answers

Answer:

could u add more context?

Explanation:

The agricultural biotech company you work for has tasked you and your co-worker to genetically engineer a plant that produces more oxygen that at the same time also produces more sugar. Your co-worker states that this is impossible.

Questions: Based on what you've learned how would you respond to your co-worker?
What is your opinion of the ethics of manipulating crop plants in such a way?

Answers

Answer:

- The co-worker is wrong, it is indeed possible

- Genetically engineered plants may represent a milestone to alleviate hunger in the world

Explanation:

During photosynthesis, plants use carbon dioxide (CO2) from the air and water (H2O) from soil and rain in order to produce oxygen and glucose, which is a sugar (molecular formula C6​H12​O6). Subsequently, plants release oxygen into the air and store energy (and carbon compounds) in the form of glucose. In consequence, an increase in the photosynthetic rate is directly associated with an increase in both the production of oxygen and glucose. On the other hand, genetically engineered plants can help to reduce hunger in developing countries. In consequence, it is acceptable to develop genetically modified plants as long as contemplating regulatory measures aimed at producing safe products (for example, by avoiding the introduction of genetically engineered genes into wild crop populations).

how is the ratio of gas produced during fermentation related to yeast glucose solution

Answers

I doe relays need
To be a real answer

1. Define physical change.

Answers

Explanation:

physical change is the change which does not cause change in its chemical composition like shape,size,colour,odour,melting point,boiling point etc

Please help, thank you

Answers

Answer: what does the question say i cant see the attachment?

Explanation:

Answer: 3. anticodon, 4. amino acid, 5. In stage one, glucose is broken down in the cytoplasm of the cell in a process called glycolysis. 6. The process of gene expression involves two main stages: Transcription: the production of messenger RNA (mRNA) by the enzyme RNA polymerase, and the processing of the resulting mRNA molecule. 7. 64. 8. One codon, AUG, specifies the amino acid methionine and also acts as a start codon to signal the start of protein construction. There are three more codons that do not specify amino acids. These stop codons, UAA, UAG, and UGA, tell the cell when a polypeptide is complete. 9. In the process of translation, the mRNA attaches to a ribosome. Next, tRNA molecules shuttle the appropriate amino acids to the ribosome, one-by-one, coded by sequential triplet codons on the mRNA, until the protein is fully synthesized. When completed, the mRNA detaches from the ribosome, and the protein is released. plzz mark brainliest

Explanation:

Which gene may play a role in patterning the forelimb?

Answers

Answer: Posterior HoxA and HoxD genes play important roles in patterning along the proximodistal axis of the forelimb (10–13). They also are required for activating and maintaining Shh expression in the developing forelimb (6, 7). mark brainliest

Explanation:

___________ is the measurement of the height above sea level. Question 3 options: Latitude Longitude Altitude Humidity

Answers

Answer:

Altitude

Explanation:

Its the elevation of an object above sea level.

Answer: the answer is altitude

Explanation:

i took my quiz and got it right

hope its help;)

An energy pyramid is shown below.
tertiary
consumers
secondary
consumers
primary
consumers
producers
N
What does the energy pyramid demonstrate?

Answers

Answer:

tertiary consumers

tertiary consumers

tertiary consumer

tertiary consumer

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