What was the first living thing on Earth?
Multicellular prokaryotes
Unicellular prokaryotes that have a nucleus
and membrane bound organelles
Unicellular prokaryotes that lack nucleus and
membrane bound organelles.

Answers

Answer 1

Answer:

the last one

gotta start small and prokaryotes don't have a nucleus or organelles let alone membrane bound organelles

Explanation:


Related Questions

What does the prefix HOMO- mean?

Answers

Answer:

the prefix, homo, means man or human.

Explanation:

The same.

Explanation:

Homogeneous is the same as something.

Heterogeneous is the opposite of something.

what does genetic drift mean ?

Answers

Answer:

variation in the relative frequency of different genotypes in a small population, owing to the chance disappearance of particular genes as individuals die or do not reproduce.

Explanation:

have a nice day!!!!!!!!

Answer:

Genetic drift- variation in the relative frequency of different genotypes in a small population, owing to the chance disappearance of particular genes as individuals

Explain

Look up genetic drift and look at the videos

If an organelle is selectively
permeable what can we
infer about its function?
A. The organelle allows molecules to
pass through easily.
B. The organelle doesn't allow any
molecules to pass through.
C. The organelle. allows some
molecules to pass through.
D. The organelle allows large
molecules to pass through easily.

Answers

the correct answer there is C.

What is gas exchange?

Answers

Answer:

Gas exchange is the physical process by which gases move passively by diffusion across a surface. For example, this surface might be the air/water interface of a water body, the surface of a gas

Gas exchange is the process of absorbing inhaled atmospheric oxygen molecules into the bloodstream and offloading carbon dioxide from the bloodstream into the atmosphere. This process is completed in the lungs through the diffusion of gases from areas of high concentration to areas of low concentration.

The half-life of a radioactive element, such as carbon-14, is the time it takes for half of the atoms of the element to decay. How many half-life periods have passed if a fossil contains 1 32 of the original amount of carbon-14?

Answers

Answer:

This half-life represents the time in which the number of radioactive nuclei falls to 1/2 of its starting value. Activity, being proportional to the number of active nuclei, also has the same half-life. Life of all the radioactive elements is infinite. Radioactive decay constant 'λ', of different elements different.

hope it helps you

Mark me as brainlist

Answer:its 5

Explanation:

can someone help me with this question

Answers

Answer:

D

Explanation:

It depends on the activities the humans are doing

Answer:

D. both A and B

Explanation:

Human activities can do pollutions and others don't

what are the two kinds of traits and how are they different from each other?

Answers

Answer:A trait is a characteristic pattern of behavior or conscious motive which can be self‐assessed or assessed by peers. The term type is used to identify a certain collection of traits that make up a broad, general personality classification.

Explanation:

Dominant and recessive, I forgot the difference but hopefully that helped a little.

Write a sentence or draw a diagram to relate these words: cell, tissue, and organ.

Answers

Answer:

Here

Explanation:

what is the common name for the boston fern

Answers

Answer:

Nephrolepis exaltata

Explanation:

Answer:

Nephrolepis Exaltata

Explanation:

Nephrolepis exaltata, known as the sword fern or Boston fern, is a species of fern in the family Lomariopsidaceae native to tropical regions throughout the world. An evergreen perennial herbaceous plant, it can reach as high as 40–90 centimetres, and in extreme cases up to 1.5 metres. It is also known as the Boston swordfern, wild Boston fern, Boston Blue Bell Fern, tuber ladder fern, or fishbone fern.

hope this helps! 5 stars pls

What are the risks, benefits and uses of cloning?

Answers

Benefits:
-stem cells are great in treating people with untreatable conditions.
-no risk of foreign cells being used and being rejected as the own patients cells will be used.
Risks:
-cultured stem cells could be carrying viruses which get passed on to the patient.
-some mutations of stem cells have been seen to behave like cancer cells so could cause cancer.
-there is no guarantee it’ll be successful.

Before entering the Krebs cycle, an intermediate molecule bonds to a 2-carbon molecule. This intermediate complex enters into the Krebs cycle, and combines with a 4-carbon molecule to form citric acid. The name of this molecule is _____.

Answers

Answer:

The link reaction occurs after glycolysis and before the Krebs cycle. It begins with pyruvate, which loses a carbon as carbon dioxide is formed - leaving a 2-carbon molecule. The link reaction terminates with the production of acetyl coenzyme A.

Explanation:

How long does a mayfly live as an adult? *

Answers

Answer:

Adults will live only a day or so, but the aquatic larvae lives for about a year

Explanation:

Answer:

~ 1 day but larvae can live longer

Explanation:

in the diagram above the substance labeled x is most likey ​

Answers

Answer:

ATP

Explanation:

In the given diagram, the substance labeled X is most likely an enzyme.Therefore, the correct option is 2.

What are enzymes?

The biological polymers that catalyze biochemical processes can be referred to as enzymes.Most enzymes are proteins having catalytic properties that are essential to carry out various operations.

One may compare the essential function of a single substrate enzyme to a lock and key.The substrate is the key in this scenario, while the enzyme is the lock. The enzymes here breaks the dipeptides resulting into the formation of mono-peptides. They are very specific and can only alter specific reactions by reacting to the substrates.Therefore, the correct option is 2.

Learn more about enzymes, here:

https://brainly.com/question/30600790

#SPJ2

Predict the results if promoters were not part of the transcription process. Please explain in detail!

Answers

Answer:

In genetics, a promoter is a protein-binding DNA sequence that initiates the transcription of a single RNA from the DNA downstream. This RNA can encode proteins, or it can have mobile functions, such as tRNA, mRNA, or rRNA. The promoter is near the starting site of gene transcription, upstream of the DNA (towards the 5 'region of the sense strands). The promoters can consist of about 100–1000 pairs

Explanation:

#semogamembantu

In this simple food chain, the grass is eaten by the grasshopper which is eaten by the snake which is eaten by the hawk
Using the above scenario, which of these would have the largest amount of available energy?
A)
grass
B)
grasshopper
snake
D)
hawk

Answers

[ D.] hawk

Explanation:

I hope it helps u

Yes it’s absolutely hawk nice

Most body cells undergo mitosis, but there are a couple of tissues in the body whose cells do not. Name one of those types of cells.
HELP ASAP

Answers

Answer:

Adult stem cells

Explanation:  Some very specialized somatic cells such as cardiac muscle cells, nerve cells, and red blood cells do not undergo mitosis.

Maple sap boils at 104°C. At what Fahrenheit temperature does the sap boil? Make sure you show all your work, including formula and unit.

Answers

Answer:

Explanation:

(104°C × 9/5) + 32 = 219.2°F


The use of non-local resources is associated with certain economic and environmental consequences.
True or false

Answers

yeah the answer is true
Certain economic and environmental consequences is true

define what is voluntary​

Answers

Answer:

done, given, or acting of one's own free will

Explanation:

i searched it up

Explanation:

voluntary implies freedom and spontaneity of choice or action without external compulsion.

Help me with these questions

1. Translation takes place in the _______ on a _______

2. What is the point of translation?

3. Transcription and translation together is the process of ________?

Answers

Answer:

1. ribosomes; AUG Codon;

Explanation:

2. Translation is the process of translating the sequence of a messenger RNA (mRNA) molecule to a sequence of amino acids during protein synthesis. The genetic code describes the relationship between the sequence of base pairs in a gene and the corresponding amino acid sequence that it encodes.

3. gene expression

How old is the Moon?​

Answers

4.53 billion years




the moon is really old

Answer: its 4.53 billion years old..

Explanation:

WILL GIVE BRAINLIEST

All cells have the SAME genes. True/False
Provide an example of this in humans: answer here

Answers

Answer:

Almost all of the cells in your body share the same DNA so false deku here! :3

Explanation:

Answer:

False.

Explanation:

All cells do NOT have the same genes due to genetic variation. The reason we have different genes for different cells is to allow the cells to do different things, otherwise all cells would perform the same function.

You are a genetic counselor. A couple comes to you for advice. The female is pregnant with their first child. Both have family histories with Tay-Sachs disease, which is a disorder that progressively destroys nerve cells, leading to loss of motor skills, vision, and hearing. The disease is an autosomal recessive pattern. Which of the following statements is true?
The child will likely have Tay-Sachs disease if both parents pass on the recessive alleles.
The child will likely have Tay-Sachs disease if both parents pass on the dominant alleles.
The child will only have Tay-Sachs disease if the mother passes on the recessive allele.
The child will likely have Tay-Sachs disease if the father passes on the dominant allele.

Answers

Answer:

The answer is B: The child will likely have Tay-Sachs disease if both parents pass on the dominant alleles.

Explanation:

Brainliest pls!!

Answer:

The child will likely have Tay-Sachs disease if both parents pass on the recessive alleles.

Explanation:

With autosomal recessive diseases, if the offspring recieves two recessive alleles, they will exhibit the trait.

The large cloud of material that surrounds a comet ends up doing what for the Comet?

Answers

I am not sure if this is correct, but creating a gravitational force?

PLS HELP!! look at photo!

Answers

Answer:

Explanation:

The answers are as follows in respective order to as the blanks are listed:

1. 6

2. 1

3. 7

4. 2

5. 3

6. 4

7. 5

In which era did human history begin?
A
Cenozoic
B
Paleozoic
С
Cambrian
D
Precambrian
E
Mesozoic

Answers

Answer:

Prehistoric

Explanation:

The Prehistoric Period—or when there was human life before records documented human activity—roughly dates from 2.5 million years ago to 1,200 B.C. It is generally categorized in three archaeological periods: the Stone Age, Bronze Age and Iron Age.

Often, characteristics are determined by several ________ ________ that interact with each other. *

Answers

Answer:

genes

Explanation:

Several characteristics (phenotypes) are controlled by more than one gene of the same characteristics or of different characteristics. These genes interact in several ways with each other.

For instance -

A flower of the same plant can be of three different colors

RR - Red

rr - White

Rr - Pink

7. To what Super group does the ameba belong? Mark as brainliest first to get correct.​

Answers

Answer:

Answer: Rhizaria Supergroup

I WILL GIVE BRAINLIEST!!!

The pedigree below tracks the presence of dimples through a family's generation. Having dimples is an autosomal dominant trait.

If individuals II-1 and II-2 have a fourth child, what is the probability that the child will have dimples?

Choose 1 answer:

(Choice A)
A
25%

(Choice B)
B
50%

(Choice C)
C
75%

(Choice D)
D
100%

Answers

Answer:

It's 50%

Explanation:

I just did it right.

Answer:

50%

Explanation:

answer on khan

Need as soon as possibleee!!

Answers

Nanometer
Milímetro
Centimeter
Micrometer
Meter
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