Which element is so reactive it is found in nature only in compounds?
Group of answer choices

Na (sodium)

Au (gold)

O (oxygen)

Fe (iron)

Answers

Answer 1
Na (sodium), because alkali metals are not found freely in nature due to their high reactivity. (In this group are lithium (Li), sodium (Na), potassium (K), rubidium (Rb), caesium (Cs), and francium (Fr).

Related Questions

____is a restriction to the flow of electrons

Answers

Answer:

Impedance.

Explanation:

Conductors allows the flow of electrons and Impedance restricts it.

Which protists contain both chloroplasts and eyespots?
A .amoeba and paramecia
B. volvox and paramecia
C. euglena and amoeba
D. euglena and volvox
.

Answers

“euglena and volvox” both contain chloroplasts and eyespots.

D. Euglena and volvox contain both chloroplasts and eyespots.

What are protists?

Protists are single-celled microorganisms that belong to the kingdom Protista. They are unicellular organisms that are not classified as bacteria, fungi, or animals, and are the simplest of the eukaryotes (organisms with a true nucleus and other membrane-bound organelles). Protists are found in a wide variety of habitats, from freshwater to marine environments, and are important for their role in the food chain, as well as for their impact on human health.

Protists come in a wide range of shapes and sizes, from amoeba-like organisms that can change shape, to algae with chloroplasts, to parasites that can cause diseases in humans and other animals. Some protists can move on their own, while others are immobile. Some can reproduce asexually, while others reproduce sexually. Despite their diverse forms and functions, all protists are considered to be part of the same kingdom because of their shared characteristics and evolutionary relationships.

Learn more about protists, here:

https://brainly.com/question/1626285

#SPJ6

The pedigree below is for a family that has the allele for thalassemia, a recessive genetic disorder. Which individual has thalassemia?
individual 2
individual 5
individual 7
individual 10

Answers

Answer:

Individual 10 is the answer

Explanation:

I just took the quiz on edge

Answer:

The answer is Individual 10, hope that helps.

Explanation

Because it is right on Edge

In a food chain that includes, in order, plants, markhors, and snow leopards, what roles do markhors play? (Select all that apply.)

Answers

Answer:

-They are eaten by snow leopards

-They eat plants

Explanation:

which of the following is a stimulus, which response?
A. The recess bell ringing in a elementary school
B. Your mouth watering at sight of food on a plate
C. A sudden drop in air temperature
D. A flu virus entering your body
E. Getting "butterflies" in your stomach before giving a speech

Answers

Answer:

A. Stimulus

B. Response

C. Stimulus

D. Stimulus

E. Response

Explanation:

Anxiety sensitivity is the apparent cause, origin, and development of a particular disease.


Please select the best answer from the choices provided

T
F

Answers

Answer:

False

Explanation:

Anxiety is rarely caused by physical diseases.

Anxiety sensitivity is not the apparent cause, origin  and development of a specific disease.

What is anxiety sensitivity?

It is the fear of sensations or behaviors related to the experience of anxiety, and a misunderstanding of such sensations as dangerous. Some of the sensations of the body associated with anxiety like palpations and nausea are misinterpreted as harmful experiences, which makes the fear or anxiety to intensify.

Anxiety sensitivity is not the apparent cause of a particular disease. It is however, the anxiety or fear, which one gets after getting a specific disease and mistaking it as a harmful experience.

Thus, the given statement is false.

Find out more information about anxiety sensitivity here:

https://brainly.com/question/26055936

Which statement below best explain the difference between microevolution and macroevolution

A. Biodiversity (macroevolution) is a result of natural selection whereas microevolution studies changes due to extinction

B. Natural selection (microevolution) focuses on a adaptation change within a species whereas macroeveolution studies similar features among species

C. Evolution (both micro & macro) takes thousands or millions of years; however, due to the complexity of DNA- microevolution usually takes longer.

D. Microevolution explains how new & different species evolve from natural selection and Macroevolution studies the different anatomical features from the DNA mutations.

Answers

Answer:

C

Explanation:

     

Describe the basic structure of the cell membrane with regard to specific molecules. What is it made out of?

Answers

Answer: The cell membrane is made up of phospholipids and the overall name is the Phospholipid bi-layer

Explanation:

The cell membrane has two rows of phospholipids.  A phospholipid is broken into two parts, the heads and tails.  The heads are hydrophilic (water-loving) and point to the outside and inside regions making the inner and outer wall, while the tails are hydrophobic (water-hating) and face each other to make the inside of the membrane.  There are also molecules of cholesterol and proteins throughout the membrane.

Phospholipids are the building blocks of a cell membrane. A single phospholipid molecule consists of two ends: the head and the tail.

What are phospholipids?

Phospholipids are amphiphilic molecules with both hydrophobic and hydrophilic fatty acid chains.

They are found in all living organisms as the primary components of cell membranes. Nature contains a variety of phospholipid classes with varying polar moieties.

Phospholipids are glycerol esters, fatty acid esters, phosphoric acid esters, and other alcohol esters.

Phosphatidylcholine, phosphatidylethanolamine, phosphatidylinositol, and phosphatidylserine are the most common phospholipids.

The phospholipid bilayer, which forms a stable barrier between two aqueous compartments, is the membrane's fundamental structure.

These compartments are the inside and outside of the cell in the case of the plasma membrane.

Thus, this is the basic structure of the cell membrane with regard to specific molecules.

For more details regarding plasma membrane, visit:

https://brainly.com/question/14015347

#SPJ2

An example of a nucleotide is?

A. cytosine, ribose, and deoxyribose
B. guanine, deoxyribose, and phosphate
C. uracil, deoxyribose, and phosphate
D. thymine, ribose, and phosphate

Answers

Answer:

B

Explanation:

A nucleotide always consists of 3 things:

1. A sugar group (either ribose or deoxyribose, ribose if the nucleotide is from RNA, deoxyribose if it is from DNA.

2. A phosphate group

3. A nitrogenous base (A/T/U/C/G) This base depends on whether you have RNA or DNA, U is only for RNA. DNA has either A/T or C/G but never U.

Please help me I beg you please help

Answers

Answer:

A-T

T-A

T-A

C-G

A-T

G-C

G-C

C-G

T-A

A-T

Answer:

ATTCAGGCTA= TAAGTCCGAT

Explanation:

adenine pairs with thymine with 2 hydrogen bond in DNA and cytosine pairs with Guanine with 3 hydrogen bonds .

I need help with 1,2,4,5,6, and 7. I already did 3 :)

Answers

Answer:

Answers, in order:

40, Temperature steeply decreases, 2, Effect decreases steeply, 5 and 9, 10

Rearrange the steps of a tsunami formation in the correct order

1. two tectonic plates slide past each other underwater, causing a large movement of water

2. large ocean waves form

3. large ocean waves move in all directions away from the shifting plates

4. large ocean waves slow down and increase in height as they reach the coast

Answers

Answer:

two tectonic plates slide past each other underwater, causing a large movement of water large ocean waves form .large ocean waves move in all directions away from the shifting plates .large ocean waves slow down and increase in height as they reach the coast

Explanation:

Tsunamis are initiated underwater and usually happen as a result of underwater earthquakes which can be initiated when tectonic plates slide past each other.

This causes a large movement of water such that large waves form and move away in al directions from the source. As these waves approach the shore they slow down speed but this only increases their height such that when they make landfall the effect could be devastating.

Question 1/7 The Nile River carries sediments to the ocean. Over time, the sediments are compressed as more sediments are deposited on top of them. Which type of rock will be formed?​

Answers

Answer:

Sedimentary Rock

Explanation:

Sedimentary rocks are formed from pieces of sediments or other existing organic matter or rock.

The sedimentary rock formation process begins with weathering which involves the breakdown of the sediments into small fragments. The next process is erosion, where water like the Nile River carries them to other places -  in this case, the Ocean.

Over time, the sediments settle and become compressed as more sediments are deposited on top of them.

This leads to the formation of Sedimentary Rocks.

Need help

The photograph shows a consequence of air pollution.
Which of these was most likely the cause of the effect shown in the
photograph?

A. Eutrophication

B. Acid deposition

C. Ozone depletion

D. Bioremediation

Answers

The most likely cause of the effect shown in the given photograph is Acid deposition.

What are the causes of Air pollution?

The causes of air pollution include excessive burning of fossil fuels, industrial emissions, carbon emissions from automobiles, construction and industrial wastes, etc.

Acid deposition may be also known as Acid rain. It includes the form of precipitation with several acidic components like nitric acid and sulfuric acid.

These precipitations finally falls on the earth from the atmosphere in the form of rain, snow, fog, etc., and are deposited on tall trees, buildings, and objects, and lose their natural beauty.

Therefore, the most likely cause of the effect shown in the given photograph is Acid deposition.

To learn more about Acid deposition, refer to the link:

https://brainly.com/question/718250

#SPJ2

Answer:

Acid Depletion

Explanation:

What is the main function of the organs thyroid gland, adrenal glands, and pancreas?

Answers

Answer:

D

Explanation:

I hope it helps you, good luck!

Does anyone have gce o levels biology matters 2nd edition workbook answers?​

Answers

no I don't have it as I am studying in 5th grade

Describe all the tissues and cell types that are found in a leaf and describe how these individual parts work together to accomplish processes of photosynthesis.

Answers

Explanation:

While individual plant species are unique, all share a common structure: a plant body consisting of stems, roots, and leaves. They all transport water, minerals, and sugars produced through photosynthesis through the plant body in a similar manner. All plant species also respond to environmental factors, such as light, gravity, competition, temperature, and predation.

The illustration is a representation of multiple gene alleles on the same chromosome. One inherited trait linked to alleles "A", "a", "D", "D", "t", and "T" is determined by __________.

Answers

Answer:

A characteristic linked to the alleles that is inherited is the genotype.

Explanation:

The genotype is the genetic makeup of an individual. The genotype is determined by the alleles and is passed from father to son through the transmission of alleles, that is, the genotype is an inheritable characteristic. The genotype cannot be modified by the environment, nor can it be modified in a natural way, but it can be modified through mutations that are also inheritable.

Brady took a cutting from a sweet potato vine in his family garden and placed the vine in a small vase filled with water. After about a week, tiny roots had begun to grow. What is this an example of

Answers

Answer:This is an example of asexual reproduction.

Explanation:

Reproduction is defined as the ability of living organisms to produce offspring, that is, new individuals of their type. Living organisms have developed many methods of reproducing. These can be either ASEXUAL or SEXUAL.

Asexual reproduction: In asexual reproduction, an individual produces an offspring by itself, that is, only one parent is present. This type of reproduction is common among flowering plants. Examples of asexual reproduction includes:

--> Fission

--> Budding

--> Spore formation

--> Fragmentation and

--> Vegetative propagation.

The sweet potato vine is reproduced by an asexual means known as vegetative propagation. Here, a new plant grows from any portion of an old one other than the seeds. When stem cutting are taken from the vine, new storage roots are formed within few days.

Brady took a cutting from a sweet potato vine in his family garden and placed the vine in a small vase filled with water. After about a week, tiny roots had begun to grow which is an example of - Asexual reproduction.

Asexual reproductionis a type of reproduction that does not involve the fusion of gametes or change in the number of chromosomes.Examples of asexual reproduction include:   Fission  Budding  Spore formation  Fragmentation and  Vegetative propagation.In the given scenario sweet potato is cultivated by vegetative propagation.Brady takes stem cuttings from the vines, which then root and form new storage roots.Sweet potatoes are relatively easy to propagate by rooting vine cuttings directly in the ground or in a well-drained rooting media

Thus, The given case shows an example of - asexual reproductions.

Learn more:

https://brainly.com/question/13876478

If you have done the Genetic engineering gizmo please help me

Answers

Answer:

d

Explanation:

Explain how a. temperature and b. light intensity 0 affect the rate of transpiration.

Answers

Answer:

Explanation:

Transpiration can be regarded as process involving water movement through a plant, it involves evaporation from aerial parts. These aerial part could be such leaves, stems or flowers.

A)Temperature

During the day period when the weather is hot there would be increase in evaporation of water from the leaves of plants, due to this transpiration is increased

B)Light intensity

When there is bright light, when the light intensity heat the plants, the stomata would be opened so that carbon dioxide is supplied for photosynthesis, and more water would be evaporated out through the leaves of the plant, then transpiration increase

What is the connection between land use and biodiversity ?

Answers

when humans use land, they like to specialize. This deceased biodiversity.

Think of man-made forests as an example. Natural forests have many kinds of trees (high biodiversity). Man-made forests often only have 1 kind of tree (low biodiversity).

22. Jose plays the piano extremely well, but his parents do not play at all. What types of trait is playing the piano? A. Inherited B. Dominant C. Acquired D. Recessive​

Answers

Answer:

I´m pretty sure its C

Explanation:

sorry if im wrong tho

Answer:

The Answer would be C

Explanation:

You cant inherit a skill you have to learn/acquire it.

1. ATP-ADP cycle talks about energy and has two types; potential energy and kinetic energy. The energy in motion is?

A. Both potential and kinetic energy C. Kinetic energy only

B. Potential Energy only D. none of the choices

2. This is the capacity to do work.

A. Potential Energy C. Chemical Energy

B. Energy D. all of the above

3. What is the product of photosynthesis?

A. Glucose C. Glucose and carbon dioxide

B. Oxygen D. Glucose and oxygen

4. Mitochondria : cellular respiration : : chloroplast : ___________

A. Calvin cycle C. Krebs cycle

B. Chemiosmosis D. photosynthesis

5. From where are heterotrophs directly obtain its energy?

A. the sun C. eating other organisms

B. the sun and eating other organisms D. simple chemicals in the environment

6. NADH & FADH : cellular respiration : : NADPH : ___________

A. phosphorylation C. glycolysis

B. redox reaction D. photosynthesis

7. Light-dependent reaction : energy formation : : Calvin cyle : __________

A. stroma C. ATP synthesis

B. Krebs cycle D. glucose synthesis

8. In the light dependent reaction, what is the first role of the captured energy from photon?

A. to split a water molecule C. to synthesize glucose

B. to energize the electrons D. to produce ATP

9. Plants produce oxygen as a by-product when they photosynthesize. Where is the oxygen come from?

A. from the electron transport chain C. during ATP synthesis

B. by splitting water molecules D. by the chlorophyll

10. Where in the plant cell Calvin cycle take place?

A. thylakoid membrane C. granum

B. thylakoid space D. stroma

11. Which statement correctly describe carbon fixation?

A. the production of carbohydrate molecules from G3P C. the formation of RuBP from G3P molecules

B. the conversion of CO2 to an organic compound D. the use of RUBISCO to form 3-PGA​

Answers

1. A
2 D
3. C
4. B
5. B
6. C
7. B
8. D
9. D
10. A
11. C
Hope that helped sorry if wrong

please asap help i am not even sure if my ans is correct but help me out

Answers

Step 2 should be sensory neurons send electrical signals to the brain

Step 3 brain learns information about the environment

Step 4 brain sends electrical signals to the muscles

Answer and Explanation:

Step 1:

Sound waves reach the bat's ears.

Step 2:

Sensory neurons send electrical signals to the brain.

Step 3:

Brain learns information about the environment.

Step 4:

Brain sends electrical signals to the muscles.

Step 5:

Bat flies away from the owl.

This is the correct way^

#teamtrees WAP (Water And Plant)

__________ are surroundings with high levels of exposure to industrial chemicals.
A)
Second-growth forests
B)
Point sources
C)
Old growth forests
D)
Rangelands
E)
Toxic environments

Answers

Answer:

E)

Toxic environments

Explanation:

HOPE IT HELPS YOU

The answer to this question is e

I need help so I'm giving 100 points away if you help with this question
The use of grass filter _______ can help block nitrates and pesticides from washing into the water system in runoff from cultivated fields

there are no answer choices so please answer slowly and think about it

Answers

Answer:

buffer zones

Explanation: rather than planting the crop right up to the water you leave some as grass or actually plant grass in that buffer zone to filter out and prevent chemicals from reaching the water system

a description of the forest ecosystem

Answers

A forest ecosystem is a natural woodland unit consisting of all plants, animals in micro organisms in that area functioning together with all nonliving physical factors of the environment. The forest ecosystem is very important

Give three reason why specialized systems are necessary in large multicellular organisms

Answers

Answer:

Specialized systems are necessary in large multicellular organisms since 1. there is a division of labor between cells, 2. many individual cells cannot work together without coordination, and 3. most of the cells are not in direct contact with the outside environment

hope it helps

pls mark me as brainliest

Specialized systems are necessary in large multicellular organisms since 1. there is a division of labor between cells, 2. many individual cells cannot work together without coordination, and 3. most of the cells are not in direct contact with the outside environment.

Which organism would look most like organism

Answers

Answer:

the last answer

Explanation:

because f,g,h both come from a so you can be sure

Other Questions
pls help if you know itduring a high school basketball game the home team scored 51 points and the opponent's score 62 points what is the point differential for (the difference between the number of points scored by a team and its opponent) for the home team?-1111-1010 Predict the approximate molecular geometry of a formaldehyde molecule: A food worker needs to cool a large batch of tuna casserole Autumn buys 5 hats at $8.99 each. How much does she spend? have you done working with your digital creation HURRY YOU WILL GET BRAINLIEST The French and Indian War was fought to gain control of: mining areas fishing and trapping areas the Northwest PassageNew Amsterdam If flx) = 2x 6 and g(x) = x-2x?, find each value. A computer store buys a computer system at a cost of $370.80. The selling price was first at $618 , but then the store advertised a 20% markdown on the system. PLEASE HELP I CANT CONTINUE WITH MY WORK UNLESS THESE ARE COMPLETE AND CORRECTIP Check: Solving Systems by EliminationTeachers instructions:Do not forget the PARENTHESIS in your answers. What are ethical concerns in using animals for research?Select all that apply.Animals cannot consent to being used in experiments.Animals are ideal biological models for experimentsMany animals can be studied at one time.Some animals may have adverse reactions. the scale of a model is 0.5in : 6 ft. find the length of the model for an actual length of 204 ft Go find 5 materials that's u can use in ur garden. Please answer. multiple choice geometry helPppp Help me! Another question on khan. 1. what do you think the men carrying the baskets represents?2. what are two reasons this cartoon would be names the white mans burden?3. why would this cartoon be considered racist today? help plz ill give extra points Can I please get help with this? What is a refugee? Do you think the United States should accept refugees? If so, should the United States accept all refugees from any country or should there be limits and what should the limits be? how many litres of hydrogen is present in 12 grams of hydrogen What does the Second Amendment protect?The right to assemble Freedom of the pressFreedom of speech Freedom of religionThe right to bear arms