The earliest forms of life on earth were photosynthesis? True or false

Answers

Answer 1

Answer:

Answer:

False

Explanation:

The first living thing on planet earth was a single celled species commonly termed as prokaryotic. These simplest forms of species were made up of primordial chemicals which some how under specific environmental condition developed into proteins and RNAs thereby generating higher forms of life. The earliest form of single celled prokaryotes were termed as bacteria and archae. These tiny creature were observed for the first time some 4 billion years ago.

Answer 2

Answer: The earliest forms of life on earth were photosynthesis? Its False.

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Which of the following organisms is a heterotroph? A. mushroom B. alga C. wheat D. sunflower
Describe some ways that human activities are affecting aquatic ecosystems. Propose strategies that individuals can use and governments can implement that would prevent or reduce these human impacts.
What is the growth rate? births = 20 deaths = 10 immigration = 5 emigration = 1 25 20 16 14
If an animal cell shrinks, it was probably placed in a _____.hypotonic solution hypertonic solution isotonic solution
Write a brief note on lymphatic system in human being.

Which of the following explains why the heart is organized so that it pumps blood to two different locations? a.to supply blood to two different sides of the body b.to allow a way for the blood to pick up new blood cells c.to move oxygen-poor blood through the lungs and to move oxygen-rich blood to the rest of the body d.to provide a way for blood to pick up nutrients at one location and oxygen at another

Answers

Im pretty sure that it is (A) because blood pumps to get every where through your body. If it didn't one half of your body would feel cold or numb.

The answer is C, I just had this question-

C. To move oxygen-poor blood through the lungs and to move oxygen-rich blood to the rest of the body

Which statement about inheritance is true?Girls get most of their traits from their moms; boys get most of their traits from their dads.
Male offspring will always have an X-linked genetic disease if the mom is a carrier.
Fathers always determine the gender of the offspring in humans.
Males never have Y chromosomes.

Answers

Answer:

The correct answer is the third statement.

Explanation:

In humans, the males possess one X and one Y chromosome, while the females possess two X chromosomes. Thus, the female always donates X chromosome to the gamete. In any case, the female always generates a similar kind of gamete. While the male either pass X or the Y chromosome to the progeny.

When the gamete with the X chromosome combines with the female gamete than the offspring would possess XX chromosomes and will be a female. On the other hand, when the gamete comprising the Y chromosome combines with the female gamete than the offspring would possess the XY chromosome and will be a male. Thus, it is the father who determines the gender of the offspring.

-"Larus" (a different brainly user this is not my answer)

Plants use energy to absorb what?

Answers

Plant use energy to absorb water and sunlight.
It's known as PHOTOSYNTHESIS. :)

If an ecosystem is disturbed, goes out of balance, and cannot return to a state of equilibrium, the species living there will most likely _____.

Answers

The species living their might likely emigrate, adapt or worst die and they will become extinct. We need to pay more attention to the ecosystem because it is where the community of all the living organism with the nonliving components of their environment, interacting as a system.

Answer: Become extinct

Explanation: Pearson

EOC Biology. A strand of DNA contains the sequence GGC-CAT. What is the complementary strand of mRNA for this sequence? Please help

Answers

GGC-CAT - strand of DNA
xxx- xxx - strand of mRNA
---------------------------------------------------------------------------
The first, let's see what connect with what:
when we talk about DNA and complementary strand of DNA:
guanine connects to cytosine (and vice versa)
thymine connects to adenine (and vice wersa)

when we talk about DNA and complementary strand of RNA:
guanine connects to cytosine (and vice wersa)
adenine (in DNA) connects to uracil (in RNA)
thymine (in DNA) connects to adenine (in RNA)
-----------------------------------------------------------------------------------------------
GGC- CAT - strand of DNA
CCG- GUA - complementary strand of mRNA

complementary strand of DNA would be: CCG- GTA
(in complementary strand of RNA: thymine is replaced with uracil)

Greetings,
n00nst00p :)

CCG-GUA :) (because its an mRNA strand it can't have the amino acid Thymine or (T) so we replace it with a U.

Which statement best summarizes "Save the Coral Reefs”?Coral reefs are a very important component of the ocean’s ecosystem because they support sea life, such as crabs and sea turtles. In fact, over four thousand species depend on the survival of the reefs, which are being destroyed by bleaching. More must be done immediately to save the reefs. Development along the coastal regions has significant negative effects on coral reefs. The reefs are an essential part of the ocean’s ecosystem, and when people build structures on top of them, they are easily damaged because they are so fragile.

Answers

The right answer for the question that is being asked and shown above is that: "The reefs are an essential part of the ocean’s ecosystem, and when people build structures on top of them, they are easily damaged because they are so fragile."

Coral reefs are a very important component of the ocean’s ecosystem because they support sea life, such as crabs and sea turtles. In fact, over four thousand species depend on the survival of the reefs, which are being destroyed by bleaching. More must be done immediately to save the reefs.

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Small molecules like water, carbon dioxide, and nitrogen enter plant cells through the cell membrane. Plant cells also have specialized organelles called __________ that contain pigments that capture sunlight to use to make food.

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Some photosynthetic organisms contain chloroplasts that lack photosystem II, yet are able to survive. The best way to detect the lack of photosystem II in these organisms would beto test for liberation of O2 in the light. (T/F)