remained short for several centuries, then became much taller over the last 50 years. have consistently grown taller over the last two centuries. vary in height primarily because of the degree of various stressors on each population. vary in height because of genetic differences between groups.

Answers

Answer 1

Answer:

Vary in height primarily because of the degree of various stressors on each population

Explanation:

Shorter plants became taller because of the various stressors such as unavailability of sunlight. Due to unavailability of sunlight, the plants grow taller for gaining solar radiation that is required for the process of photosynthesis. So we can say that the environmental condition or stress brought changes in the plant body.  


Related Questions

Which system does NOT have to do with excretion?
1.(Urinary)
2.(Skin)
3.(Lymphatic)
3.(Respiratory)

Answers

Answer:

lymphatic

Explanation:

Why is it important to be able to date fossils?

Answers

Answer:

so we can tell the time period of the fossils and learn more from what living things came before us

Explanation:

Dating of the fossils contributes to a clearer timeline of evolutionary history. Older methods of dating were more subjective, often an educated hypothesis based on the evidence available.

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Earth is made up of four systems: atmosphere, hydrosphere, geosphere, and blosphere. While each sphere covers a different
component of the planet, they are closely related to each other and interact often. An event in one sphere can cause dramatic
changes in another. Carbon is an element with a critical role in all four spheres. A student draws a model of the four spheres in
relation to the carbon cycle.
Carbon Cycle
Atmosphere
Cellular
respiration
Photosynthesis
CO2
V Hydrosphere
Biosphere
Energy
Ocean
Oil
Fossils
Geosphere
Shell
Which sphere, regarding carbon would be most immediately affected by a decrease in sunlight?
A Atmosphere
OB. Biosphere
O C. Geosphere

Answers

Answer:

A. Atmosphere

Explanation:

Atmosphere would be most immediately affected by a decrease in sunlight because sunlight is responsible for the photosynthesis in plants. if sunlight decreases, the photosynthesis reaction is also decreases in plants and less carbondioxide gas is used by the plant from atmosphere for making their food so we can say that atmosphere is greatly affected by the decrease in sunlight.

What part of the chloroplast helps to absorb light in order for the plant to make its own food? Question 10 options: chlorophyll stomata guard cells photosynthotons

Answers

Answer: A please tell me if im right

Explanation:

Answer:

chlorophyll

Explanation:

hope i helped

Two new diploid cells are formed from each original. MITOSIS or MEIOSIS.

Answers

Answer:

Mitosis

Explanation:

Answer:

meiosis po ang sagot itama niyo na lang po ako kapag mali

Salmon live in both fresh water and salt water during their lives. They are born in in fresh water but migrate out to marine waters for most of their life. Eventually, they return to the place they were born in fresh water to spawn. Changing between fresh water and salt water affects the balance of water in their body. Salmon have an internal control system called osmoregulation that restores the balance by negative feedback. This is an example of which characteristic of life

Answers

Answer: The question is incomplete because the options are not given. Here are the options gotten from another website.

A. adaptation

B. reproduction and development

C. response to the environment D. energy transformation

E. maintaining homeostasis

The correct option is maintain homeostasis which is C.

Explanation:

This is because salmon posseses adaptive physical characteristics that help it to suitably live both in freshwater and salt water. This is because homeostasis is the ability to resist any change in order to maintain body internal environment and this is a negative loop feedback. Organs of salmon work to control homeostasis but endocrine and nervous system engage more in maintain homeostasis.

The last option is correct.

The following information should be considered:

This is due to the sal-mon possessing adaptive physical characteristics that help it to suitably live both in fresh-water and salt-water. This epresent the ability to resist any salt-water in order to maintain body internal environment.

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why is it an advantage that bundle sheath chloroplast lack grana​

Answers

Explanation\Answer:

Pack sheath chloroplasts don't contain grana (if present not many and poorly created). In mesophyll cells, the light needy response is supported. In group sheath cells, the light autonomous responses are supported. Huge measure of ATPs and diminished coenzymes are created in the mesophyll cells.

When does DNA replication happen?
Interphase
Metaphase
Anaphase
Telophase

Answers

answer :
s phase

explanation :
it’s not one of the options but i’m pretty sure i’m right sorry if it’s wrong

Answer: Interphase

Explanation: Interphase is the longest stage in the eukaryote cell cycle. During interphase, the cell acquires nutrients, creates and uses proteins and other molecules, and starts the process of cell division by replicating the DNA

Consider the two samples of sedimentary rock seen here.Predict which rock would be more likely to undergo physical weathering. Explain how and why.
A) Sandstone. Sandstone has more obvious layers of sediments.
B) Shale. Shale is fine grained and is more likely to dissolve in water.
C)Sandstone. Sandstone is made of large sand-like grains and is easily eroded by wind
D)Shale. Shale contains iron which is an element that easily combines with the oxygen in the atmosphere to produce rust.​

Answers

Answer:  A) Sandstone. Sandstone has more obvious layers of sediments.

Step by step explanation: As you take a look at the given pictures, you notice that (Sandstone) Is more closed off than (Shale). So whenever rain comes, rain will seep into the little openings of the rock shale has, causing it to break down.Same for strong wind, since shale isn't as compacted as Sandstorm, then shale will not last very long. Therefore making Sandstone being able to undergo more harsh conditions.

1. Direction: Choose and write the letter of the correct answer on the space provides
16. Veich is used for sing four?
a. eggbeater
b. four sier
o .spettal
17. Which is include a inte and chopping board.
a puting tools b. pastry blender c. peeler
d. strainer
18. Which is used to separate the firer particles from the coarser particles of ingredients?
a grate
c.sk
19. Which is a unit of weight and measure which is equivalent to 1 pound?
a. 16 ounces
b. 1pint
d. 1 gallon
20. Which measurement to serve as your substitute for honey?
a.2 T. four
b. 3 T. cocoa + 1 T. fat
c. 12 T. comstarch
d.1%C. sugar + % C. water
21. Which is used ble
el ingredients when measuring dry or solid ingredients?
b. spoon
c. spatula
22. Which is not to be done with the cup when measuring liquid ingredients?
an the cup b. pack the cup c. shake the cup
d. tap the cup
23. Which is used for cuting bread?
2. butler knite
b. chefs Knie
c. paring knife d. serrated knife
24. Which is used for draining liquid from can fruits and vegetable?
2. colander
b. four sifter
c. pastry cloth d. strainer
25. Which is a product can be made by mixing lemon juice, baking soda and vinegar?
a baking soda
b. borax
c. cleaning paste d. tea tree oil
26. Which is used to sterilize tools and equipment?
a. boing water
b. cold water
c. distilled water d. warm water
27. Which term used to describe something that has a potential to cause harm?
b. airbome
c. hazard
d. risk​

Answers

Answer:

its a test its a test

Explanation:

Is this a test is this a tetstis this a test is ti


HELP ASAP

What factor would not affect the island lizard gene pool once they reached the mainland?
O New and diverse ecosystems
Major island storms
New populations of lizards to breed with
Separation from the island lizard population

Answers

Answer:

c new populations !

Explanation:

easy

Answer:

Major island storms

Explanation:

The leave of a plant fold inward when it touched as a way to defend themselves from potential harm. What kind of response do the leaves demonstrate.

Answers

Answer:

thigmonasty response

i might be wrong but im not sure

Explanation:

Answer: A. Nastic response

Help please ???????

Answers

I think option 2. Cos the first and last ones are about Geography and the 3rd one is just a theory

the failure of homologous chromosomes to separate correctly during meiosis is called

Answers

Answer:

Aneuploidy is caused by nondisjunction

Explanation:

Aneuploidy is caused by nondisjunction, which occurs when pairs of homologous chromosomes or sister chromatids fail to separate during meiosis. The loss of a single chromosome from a diploid genome is called monosomy (2n-1), while the gain of one chromosome is called trisomy (2n+1).

Nondisjunction in Meiosis

Explanation:

Nondisjunction in Meiosis : Nondisjunction occurs when homologous chromosomes fail to separate during meiosis, resulting in an abnormal chromosome number

Need help will mark Brainliest

Answers

I can’t read the brainliest
I dont know how to read can you helo me ???

Match the following explanations with the appropriate reasons for cellular reproduction.

Answers

Answer:

Organisms get larger and develop into different stages of life >> Growth and development

Heal wounds, replace damaged cells >> Replace cells

Organisms make more of the species to keep them from going extinct >> Reproduction

Explanation:

Growth refers to the irreversible process by which organisms/tissues/cells increase in size and mass. Moreover, development can be defined as the progression from earlier to later maturation stages (e.g. fertilized ovule develops into a seed that will produce a mature tree). Cell replacement is a natural mechanism that occurs when cells become aged or in response to external/internal damage. During cell replacement, cells are produced from other cells by cell division. Finally, reproduction is a key biological process by which organisms (called parents) produce new genetically related organisms (i.e., offspring). According to the mode of transmission of genetic information, reproduction can be divided into sexual reproduction (offspring are different from parents) and asexual reproduction (offspring are the same as parents).

what isPlasma membrane

Answers

answer:

plasma membrane a microscopic membrane of lipids and proteins which forms the external boundary of the cytoplasm of a cell or in closes a vacuole, and regulates the passage of molecules in and out of the cytoplasm

answer number 2

the plasma membrane or cell membrane, is the phospholipid layer that surrounds the cell and protects it from outside environment.

you can use either answer if you have to type or write an answer

What is this the definition of?

Reaction that disassembles polymers and absorbs water.

Answers

Answer:

Hydrolysis reactions use water to breakdown polymers into monomers and is the opposite of dehydration synthesis, which forms water when synthesizing a polymer from monomers. Hydrolysis reactions break bonds and release energy.

Hydrolysis reactions use water

Which pair of phenomena both support the particle model of light?
A. The photoelectric effect and constructive interference
B. Diffraction and interference
C. Blackbody radiation and diffraction
O
D. Blackbody radiation and the photoelectric effect

Answers

Answer:

D. Blackbody radiation and the photoelectric effect

Which statement describes the most likely effect of rising sea levels on life?

O A Oceans will become less salty, and the populations of ocean organisms will increase.

OB. All the beaches will erode away, and coastal organisms will die as a result of losing their habitat

C Some low-lying coastal areas will flood and people living in these areas will have to find new places to live.

D. More freshwater will become available as ice sheets melt and increase groundwater levels.

Answers

C is the only answer to me that seems logical

how would I order this.​

Answers

Answer:

I hope this helps! I'm sorry if anything is wrong

Explanation:

Fats and oils are rich in nonpolar covalent bonds, specifically C-C bonds and C-H bonds. What is the consequence?

Answers

Answer:

they become insoluble in water.

Explanation:

The many C-C and C-H bonds make fats nonpolar and insoluble in water.

The consequence is they become insoluble in water. The correct option is D.

What are fats and oils?

One of the three macronutrients is fat and oil (the other two are protein and carbohydrates).

However, fats and oils differ from one another in that fats are primarily derived from animal sources, whilst oils are primarily derived from plant sources.

Because fatty acids are amphipathic, they have polar and nonpolar ends on opposite sides of their molecular structure.

Fat molecules known as monounsaturated fats have only one unsaturated carbon link (also called a double bond). Similar to olive oil, oils containing these fat molecules are liquid at room temperature and start to solidify when it becomes cold.

Therefore, the correct option is D. they become insoluble in water.

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The question is incomplete. Your most probably complete question is given below:

They become hydrophilic

They are able to form bilayer membranes

they become soluble in water

they become insoluble in water

Crickets "chirp" by rubbing their wings or legs over each other. This phenomenon is known as stridulation. It is a means by which male crickets "call" to females to communicate their interest in mating. Frequency refers to the number of chirps that crickets produce during a period of time. Some have suggested that you can tell the temperature and the humidity based on how fast crickets chirp.

Required:
a. What is the effect of temperature on the frequency of cricket chirping? As the temperature rises, the cricket chirp occurs more rapidly therefore increasing.
b. What is the effect of humidity on the frequency of cricket chirping? As the humidity rises, the cricket chirp frequency occurs more rapidly therefore increasing.

Answers

Answer:

a. As the temperature rises, the cricket chirp occurs more rapidly therefore increasing. It is correct.

b. As the humidity rises, the cricket chirp frequency occurs more rapidly therefore increasing. It is incorrect. The increase in humidity does not affect the chirp frequency in crickets.

Explanation:

As temperature increases, the frequency of cricket chirp increases too. After listening to the audios, we can see that in the first audio, where the temperature is 14° Celcius, the frequency is 24 chirps in 15 seconds. In the second audio, with 19° Celcius, the frequency is 28 chirps in 15 seconds. In the last audio, where the temperature is 24° Celcius, the chirp's frequency is 34 chirps in 15 seconds. In conclusion, if the temperature increases, the chirps' frequency increases too.

As humidity increases, the frequency of the chirp does not. In the three audios, the number of chirps in 15 seconds was 20. We can conclude that humidity does not affect the frequency of chirps frequency.

Х
10. Certain problems with the digestive system make it very hard for your0/1
body to digest all your food. Why would it be more difficult to exercise
when you have this kind of digestion problem?
You would not be able to sleep, which would make you too tired to exercise.
O
You would need to breathe in a lot more air because your body would have fewer x
molecules from food. This would allow for cellular respiration.
Your circulatory system could not deliver any of the molecules your cells need to
make energy for exercise..
Your cells would have molecules from air, but would not get enough molecules from
food. Both are needed for cellular respiration
Correct answer

Answers

Answer:

Your cells would have molecules from air, but would not get enough molecules from food. Both are needed for cellular respiration

Explanation:

In most animals, combinations of various tissues make up functional units called?

A. Epithelial cells
B. Organs
C. Organ Systems
D. populations

Answers

the answer is B.organs
B——————- gosh I hate that they make you have it 20 characters long goodness

The least numerous but the largest of the papillae are arranged as a V-shape on the posterior dorsal surface of the tongue. They contain the majority of taste buds and are called ________ papillae. The least numerous but the largest of the papillae are arranged as a V-shape on the posterior dorsal surface of the tongue. They contain the majority of taste buds and are called ________ papillae. papiform filiform fungiform vallate foliate

Answers

Answer:

The least numerous but the largest of the papillae are arranged as a V-shape on the posterior dorsal surface of the tongue. They contain the majority of taste buds and are called vallate papillae.

Explanation:

The shape, location and function of these taste buds make vallate papillae unique. First, they have a distinctive "v" shape, and most adults only have seven to twelve of these papillae, vallate papillae are the least numerous papillae, they are the recipients of the bitter taste. The vallate papillae are the largest and the most specialized, they are located on the back of the tongue, forming the lingual V, in a variable number from 7 to 12. The number of taste buds depends on age, presenting around 270 in the newborn and descending approximately one hundred in individuals older than 75 years. These buttons are located in the crypts or grooves that form the papillae, mainly on their internal face (the annular groove is observed between the papilla and the edge of the calyx), in whose edges the extremities of the taste corpuscles stand out in the form of filaments. Each taste corpuscle comprises two classes of cells: supportive and taste cells.

The largest but least numerous papillae in the dorsal surface of the tongue is Vallate papillae.

Vallate papillae:

These are specialized taste buds that present in the posterior dorsum of the tongue.

They are the largest taste buds. They form a 'V'- shape structure.There number can vary between 7- 12.

Therefore, the largest but least numerous papillae in the dorsal surface of the tongue is Vallate papillae.

To know more about Vallate papillae

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Why are most genes inhibited in an average animal cell

Answers

Answer:

Most genes must be turned off because cells play specific functions, thereby only a limited number of genes must be expressed in each cell type in order to produce proteins required in the cell  

Explanation:

Gener regulation is a critical molecular mechanism required for normal cell functioning. In consequence, genes are turned on and off depending on the cell type. For example, in the brain, cells that will be differentiated into neurons will be expressed, while genes involved in the differentiation of undifferentiated myoblasts into muscle cells will be turned off. Thus, genes are switched off in order to produce only those specific proteins which are required for each cell during specific developmental programs and functions carried out by each cell type.

What would be the complementary DNA produce

Answers

Complementary DNA (cDNA) is a DNA copy of a messenger RNA (mRNA) molecule produced by reverse transcriptase, a DNA polymerase that can use either DNA or RNA as a template.

The purpose of the endocrine system is to Select one: a. extract nutrients from food to meet the body s needs for energy and eliminate solid wastes. b. move blood throughout the body to supply cells with oxygen and nutrients and remove wastes. c. produce hormones that help regulate many body functions. d. provide the oxygen needed by body cells and remove the waste product carbon dioxide.

Answers

Answer: c. produce hormones that help regulate many body functions

Explanation:

The endocrine system helps in the release of hormones and regulating them into bloodstream and these hormones that are released then travel to the cells to perform different functions like growth and development, reproduction, controlling of ones mood, metabolism etc.

Therefore, the correct option is C "produce hormones that help regulate many body functions"

How many teaspoons does it take to get 9 table spoons?


a. 21
b. 14
c. 27
d. 18

Answers

Answer:

c. 27

Explanation:

each tablespoon is equals 3 teaspoons

3×9=27

Answer:

27

Explanation:

3 teaspoons equal 1 tablespoon. So 9 times 3 =27

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