Plants are thought to have evolved from aquatic algae. true or false

Answers

Answer 1

Answer:  false

Explanation:


Related Questions

How is mRNA produced during the process of DNA transcription

Answers

Answer

During transcription, the enzyme RNA polymerase (green) uses DNA as a template to produce a pre-mRNA transcript (pink). The pre-mRNA is processed to form a mature mRNA molecule that can be translated to build the protein molecule (polypeptide) encoded by the original gene.

Explanation:

A cell removes a toxin it has produced through a chemical reaction. Which characteristic of living things is the cell demonstrating?


the ability to maintain homeostasis

the ability to maintain homeostasis

the ability to grow and develop

the ability to grow and develop

the ability to adapt and evolve

the ability to adapt and evolve

the ability to reproduce

Answers

Answer:

Sweating helps the human body maintain homeostasis by cooling the body when it starts to overheat so the internal temperature is kept more or less the same. When sweat evaporates from the skin, it uses up some of the excess heat energy on the skin, thus helping to keep the body cool.

According to cell theory, all living things are made of cells, and living cells come only from other living cells. Gene theory states that the characteristics of living things are controlled by genes, which are passed from parents to their offspring.

Sample answer: The concentration of oxygen in the atmosphere is maintained at 21 percent by a balance between two opposing processes: removal of oxygen from the atmosphere by most living things and addition of oxygen to the atmosphere by living things such as plants.

Sample answer: The human ability to sweat is an adaptation that helps maintain homeostasis in a hot environment by removing heat from the body when it evaporates. Like other adaptations, the ability to maintain homeostasis by sweating evolved by natural selection sometime in our evolutionary past.

a. Gene theory

b. Homeostasis

B

An adaptation is a trait that helps a living thing survive and reproduce in a given environment. Sample example. The chameleon’s ability to change color to match their background is an adaptation.

False

False

Humans began life as a single cell because we develop from a fertilized egg cell.

Gene theory states that genes are passed down from parents to their offspring. Genes determine the characteristics or traits of an organism. If these traits are particularly beneficial or adaptive, natural selection will cause the organisms with beneficial traits to produce more offspring compared to those without the beneficial traits. This results in a change in traits over time, which is called evolution.

No. Evolution is defined as a change in the characteristics of living things over time. Evolution through natural selection causes differences in the amount of offspring produced. Having offspring (or not) is, by definition, more than one generation.

Sample answer. I think that when ancestors of chameleons could change their color to match their background, they were less likely to be detected and killed by predators than those that couldn’t change their color. Therefore, the individuals that had the color matching ability were more likely to survive and reproduce than those that didn’t. This is an example of natural selection. Over time, this led to the population evolving the color changing ability, as those that didn’t have the ability died out.

Explanation:

i hope this helped you

Coral needs sunlight to grow. True or false identify if it is false.

Answers

Answer:

Yes ,corals depend on the zooxanthellae (algae) that grow inside of them for oxygen and other things, and since these algae needs sunlight to survive, corals also need sunlight to survive.

Answer:

True

Explanation:

Corals need to grow in shallow water where sunlight can reach them. Corals depend on the zooxanthellae (algae) that grow inside of them for oxygen and other things, and since these algae needs sunlight to survive, corals also need sunlight to survive.

Hope this helps ya!

A cross section of a seed is shown.



Which is represented by the letter X?

embryo
seed coat
stored food
leaf

Answers

Answer:

Embryo

Explanation:

I took the text

Answer:

embryo

Explanation:

During the nitrogen cycle, through which structure are nitrogen compounds first absorb into the plant?

A.) roots
B.)leaves
C.) flower
D.) stem

Answers

Answer:

It's B

Explanation:

I took the test

Answer: B (Leaves)

Explanation:

Did it engenuity unit test

When the concentration of molecules on both sides of a membrane is the same, the molecules will

Answers

The molecules will continue to move across the membrane in both directions

Hope this helps! ;)

When grey wolves were reintroduced back into Yellowstone

Answers

Answer:

1995

Explanation:

Grey wolf packs were reintroduced to Yellowstone National Park and Idaho starting in 1995.

hope it helpful

Large reefs are thousands of years old. True or false identify if it is false

Answers

Answer:

True

Explanation:

y e s .

It’s true, I answered on edge 2020

Please Help!!! Which two body systems are most affected when a person is participating in a long jump?

A. endocrine and digestive
B. endocrine and muscular
C. skeletal and digestive
D. skeletal and muscular

Answers

The two-body systems that are most affected when a person is participating in a long-jump are skeletal and muscular (Option D).

The muscular system is composed of three different types of muscles: smooth muscle, cardiac muscle and skeletal muscle.

The skeletal muscles are muscles responsible for controlling voluntary movements (e.g., jump) and they are attached to the skeleton by a type of connective tissue known as tendon.

The skeletal system is composed of all bones of the body and they are responsible to provide support and protection to the internal organs.

In conclusion, the two-body systems that are most affected when a person is participating in a long-jump are skeletal and muscular (Option D).

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Fill in the missing mRNA bases sequence that corresponds to the DNA base sequence - CAC GTG GAC TGA



Fill in the missing amino acid sequence that corresponds to the DNA base sequence CAC GTG GAC TGA

Answers

Answer:

mRNA: GUG CAC CUG ACU

amino acids: VAL HIS LEU THR

Explanation:

The missing RNA base sequence to the DNA base sequence: CAC GTG GAC TGA is GUG CAC CUG ACU respectively.

The missing amino acids to the DNA base sequence CAC GTG GAC TGA is VAL HIS LEU THR respectively.

What are amino acids?

Amino acids are organic compounds made up of amino and carboxylic groups.

Amino acids are the primary building blocks of protein.

There are 20 amino acids are present.

Thus, The missing RNA base sequence to the DNA base sequence: CAC GTG GAC TGA is GUG CAC CUG ACU respectively.

The missing amino acids to the DNA base sequence CAC GTG GAC TGA is VAL HIS LEU THR respectively.

Learn more about amino acids, here:

https://brainly.com/question/15823799

. Which of the following describes the healthiest ecosystem? *
a. An ecosystem that has low biodiversity
b. An ecosystem that has high biodiversity
c. An ecosystem that has many more producers than any other trophic level
d. An ecosystem that has many more herbivores than any other trophic level
e. Answers B and C

Answers

Answer:

The Answer is E. Answers B and C

Explanation:

Answer:

e) Answers B and C

Explanation:

aka the 5th option

Why immobilized enzymes are widely used in industry? Explain, please

Answers

Answer:

just go with your instincts


Is this rock Felsic or Mafic or
In between


Answers

I believe it is in between. it shows to have both felsic and mafic properties

What cellular process does a mitochondrion perform for the cell?

Answers

Answer:

Cellular Respiration.

Explanation:

The cell theory applies to all organisms, including the five shown below. Which of the following statements describes how these organisms are an example of the cell theory? A. The organisms have cells that lack a nucleus. B. The organisms are made of one or more cells. C. The cells of the organisms undergo photosynthesis. D. The cells of the organisms are identical to each other.

Answers

Answer:

Its B

Explanation:

ALl of the cells are made from cells so that is the answer hope this helps :)

How reintroduction of the sea otter populations impacts the health of the kelp forest ecosystem describe the impact on at least 3 other l species within the kelp forest

Answers

Answer:

Sea otters encourage the growth of giant kelp forests as they control sea Urchin populations. Otters are a keystone predator. Kelp forests are curcial to many many many species of animals. Sea lions and seals feed on the fish there, many types of fish are found there crucial to fisherman such as all types of rock fish. Crabs, jelly fish, sea stars, anemones, and other small fish rely of these forests so it will greatly impact their population and over all health and the health of the ocean if there is a sea urchin population control.

Explanation:

what are the functions of pseudopodia in amoeba?

Answers

Answer:

Pseudopods are used for motility and ingestion. They are often found in amoebas.

Explanation:

Can someone please help me this is Biology in 7th Grade

Answers

The correct answer is C. They move to an area with lower oxygen concentration

Explanation: Gas molecules can pass through semi-permeable which means they don’t need transport proteins for the movement

Hope this helps :))

How many total atoms are present in the compound 2Ca(OH)2 I’ll give brainliest on both

Answers

i think there are 10 atoms present

The epithelial tissues are so important they have the ability to ______________________ _____________________ to initiate ______________________.

Answers

Answer:

• covers the body and  makes up inner lining

• protects against  damage, dust, bacteria  

Explanation:

what is cellurar respiration?

Answers

Answer:cellular respiration is a process by which cells use oxygen to produce energy from food.

This happens in the mitochondria

Please actually answer the question i need the answer, i'll give brainliest!!!!

A city is located in an area that has experienced 7.5-magnitude earthquakes in the past.
The city is considering building a new skyscraper.
Use the earthquake magnitude scale to predict the amount and type of damage residents should expect from future earthquakes of similar magnitude.
Then suggest a way to minimize the effects of future earthquakes on the skyscraper.

Answers

According to the scale, residents should expect major damage and the potential for the skyscraper to collapse if a future earthquake were to occur.
Ways to minimize future earthquakes impact on the skyscraper could be using stronger materials, creating better routes to quickly escape should an earthquake occur, and overall a more supported structure that can withstand the earthquakes magnitude.

Why are invasive species dangerous to the environment?
A)They pollute the environment.
B)They are always predators.
C)They threaten biodiversity.
D)They bring abiotic factors.

Answers

Answer:

C

Explanation:

They threaten the other animals. They can take their food, homes, and they don't have natural predators.

Invasive species are dangerous to the environment as they threaten the biodiversity. Thus, the correct option is C.

Invasive species are those imported species that are able to thrive rapidly in another foreign area by adapting and reproducing quickly.

Invasive species of plants and animals lead to an increase in the competition for survival, which results in decrease in the population of the native species.

The invasive species also affect the food web that is existing in the particular ecosystem, because of which other all organisms which are part of the food web are affected. They outcompete the native species for food,

Thus, biodiversity is threatened due to the invasive species.

Learn more about invasive species in:

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In the graph below, which letter represents the activation energy of a catalyzed reaction and why?

Choose 1 answer:

(Choice A) Y; the activation energy is reduced in a catalyzed reaction

(Choice B) X; the activation energy is greater in a catalyzed reaction

(Choice C) X; the activation energy is greater in an uncatalyzed reaction

(Choice D) Y; the activation energy is greater in an uncatalyzed reaction



Report a problem

Answers

Answer: Choice C) X; the activation energy is greater in an uncatalyzed reaction

Explanation: I got this question on khan academy.

The option that represents the activation energy of a catalyzed reaction is C. X; the activation energy is greater in an uncatalyzed reaction.

Activation energy simply means the minimum amount of energy that should be provided for compounds that'll result in a chemical reaction.

It should be noted that the activation energy for uncatalyzed conversion to the products will be more than that of the catalyzed reaction. In this case, X; the activation energy is greater in an uncatalyzed reaction.

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https://brainly.com/question/19522206

What is the animal that looks like a squirrel, but glides. AKA, i know

Answers

Answer:

sugar glider

Explanation:

Answer:

either the obvious answer: flying squirrel

or slightly less obvious: sugar glider

A square jaw is recessive to a round jaw (dominant), It is possible for two parents with a square jaw to have a child with a round jaw? Why or Why not?

Answers

No, it would not be possible since both alleles in the genotype are recessive. If the alleles were xx for square jaws, then
x x
x xx xx

x xx xx

would be the possible genotypes for the offspring

What is the answer to this question

Answers

Answer:

C

Explanation:

Because chromosomes come in pairs, if they weren't in pairs you'd have 46, but since they arent separated its 23. So, the answer is Homologous pairs

Hope this helps!

If a pure-bred tall plant is crossed with a pure-bred short plant, the offspring will be:

a. Either tall or short
b. All offspring will be medium sized.
c. Some offspring will be tall, some will be short and some will be medium sized.

Answers

I would say A. Either tall or short
When Mendel crossed purebred short plants with purebred tall plants, all of the offspring were TALL

The pure-bred tall plant dominated the short

What is the importance of cell membranes to supporting life?

Answers

Answer:

The plasma membrane, or the cell membrane, provides protection for a cell. It also provides a fixed environment inside the cell. And that membrane has several different functions. One is to transport nutrients into the cell and also to transport toxic substances out of the cell. I hope this helps you :)

How Fast can you answer how fast can i give you brainliest????? HELP...

Answers

Answer:

Explanation:

I think it's b or d may a

Answer:

The answer is C: Pond

Explanation:

its definition is the closest to the question: a small body of still water formed naturally or by hollowing or embanking.

I deeply apologize if this is incorrect.

I hope this helped and if it did I would appreciate it if you marked em Brainliest. Thank you and have a nice day!

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