Help!!!!
3. Could viruses have been the first form of life on earth?

Answers

Answer 1
No.viruses require a more complex cell to reproduce within

Related Questions

Which term best describes all of the different species of insects living in a rainforest? a number of populations a niche a number of communities a habitat

Answers

Answer:

The correct answer is a number of communities.

Explanation:

Population can be defined as a group of all members of a particular species living in a specific geographic region whereas a community is the population or group of all species that are inhabited in the particular geographic region.

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pls mark brainliest

Answer:

communities

Explanation:

A community is made up of several populations of different species interacting in an area. When you also include the nonliving components found in that area, like water and sunlight, you get an ecosystem.

A particular gene has two alleles, a dominant allele A and a recessive allele a. The frequency of allele A is 0.55. If the population is in Hardy-Weinberg equilibrium with respect to the gene, then what is the expected frequency of genotype Aa

Answers

If p = frequency of A and q = frequency of a, then assuming H-W equilibrium we have

p + q = 1   ⇒   q = 1 - p = 1 - 0.55 = 0.45

Then the expected frequency of the heterozygous genotype Aa is 2pq = 2 • 0.55 • 0.45 = 0.495.

Which of the following is not a form of energy

mechanical
heat
matter
solar

Answers

Answer:matter

Explanation:foundonweegy

The Golgi body interacts the most with
which of these?

A. nucleus
B. free ribosomes
C. nucleolus
D. endoplasmic reticulum

Answers

Answer:

D. endoplasmic reticulum

Explanation:

If there are 32 sister chromatids in a normal somatic cell, how many chromosomes are there?.

Answers

If there are 32 sister chromatids in a normal somatic cell, the number of chromosomes there are 16 chromosomes. Each chromosome contain of 2 sister chromatids.

How many chromosomes are in a sister chromatid?

Each daughter cell will have half of the initial 46 chromosomes, or 23 chromosomes. Each chromosome contain of 2 sister chromatids.

The daughter cells drive in to the third and final stage of meiosis: meiosis II. At the end of meiosis I there are two haploid cells.

Thus,  the number of chromosomes there are 16 chromosomes, as Each chromosome consists of 2 sister chromatids.

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What general statement can you make about being a taster and non-taster relative to PTC and thiourea?
a

Answers

[tex]✏️ ANSWER [/tex]

A dominant genetic trait,

_____ describes the life cycle of a star. Nuclear fusion The big bang Nebular clouds Stellar evolution

Answers

Answer:

Stellar Evolution

Explanation:

The life cycle of a star is considered/named, stellar evolution.

1. Introduction – this is where you explain to your audience why you are making this presentation/video/booklet. You will explain what it contains, as you would for an English essay, etc.
2. Explain coastal processes – erosion, transportation, deposition.
3. Explain two landforms – one erosion, one deposition – how they are formed and include an example(s) of where you can find this feature.
4. Explain the relationship between humans and the coast – how we benefit from the coast and how we can damage the coastline, and visa versa (e.g., coastal erosion, longshore drift that changes the shape)
5. Explain coastal management strategies and include a case study (an example) of a location where coastal management strategies have been put in place
6. Conclusion – as you would for your English essays.

Answers

Answer:

1.The processes of erosion, transportation and deposition occur as a result of differing wave and current energy,Where marine energy is high, disintegration, expulsion and transportation is bound to occur.

2.Erosion refers to the breaking down of the land by the force of waves. Transportation is the work of waves and tides in transferring this broken material somewhere else and deposition refers to the process by which waves and tides lose energy, cease to transport and release eroded material.

3.Erosional landforms include V-shaped valleys, interlocking spurs, waterfalls and gorges. Meanders and oxbow lakes are formed from erosion and deposition. Depositional landforms include floodplains.

4.The ‘blue economy’—a term that has emerged in the past decade—attempts to embrace the opportunities associated with the ocean, whilst recognising, accounting for and addressing the threats posed by such an economy. It is essentially the ocean equivalent of the ‘green economy’—a vision for a decarbonised, regenerative and more equitable economic system.

The ‘blue economy’ gained prominence at the 2012 UN Convention on Sustainable Development (UNCSD), or Rio+20 conference, when small island developing states began emphasising the importance of the ocean and marine economy in response to land-focused calls for a ‘green economy’

5.Coastlines are being eroded by waves and the weather.

Coastlines need to be managed because they are often used by humans for purposes such as housing.

To protect the coast from erosion, we can use hard engineering strategies (building man-made structures such as sea walls) and soft engineering strategies (using natural processes such as beach nourishment).

6.A conclusion is, in some ways, like your introduction. You restate your thesis and summarize your main points of evidence for the reader. You can usually do this in one paragraph. In the following example, the thesis statement is in bold. Notice that it is written in 2 sentences.

Explanation:

hope it help I think I got it so far

at the number 4 you can search this link to study that question more

https://webapps.itc.utwente.nl/libraryw ww/papers_2010/msc/upm/priyanto.pd f

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pThe probability of having an offspring with both the dominant phenotypes for both genes is equal to the product of the individual probabilities. This means, the probability of having a dominant phenotype for both traits would be

Answers

The product probability rule states P(A∩B) = P(A) x P(B). In the exposed example, the probability of having a dominant phenotype is 9/16.

What is the product probability rule?

The product probability rule allows us to calculate the probability of occurrence of event A and event B at the same time.

It is about a joint probability of two or more events that might happen simultaneously, not excluding each other.

This rule is based on the dependence or independence of the events. If two events A and B are independent of each other, the occurrence of one of them does not affect the occurrence of the other one.

For independent events, the rule establishes that, given two different events A and B, the probability of occurrence of both together is

P(A∩B) = P(A) x P(B)

The probability of inheriting one of the alleles from each parent is 0.5 (beacause each parent has two alleles).

According to this, the probability of having a dominant phenotype for both traits depends on the paretal genotypes.

For instance, let us analyze the cross between two dihybrid individuals AaBb  x  AaBb.

Assuming the involved genes code for different traits and both are independent genes, for easier calculations, we can perform crosses that involve each of the genes separately -events-, and then multiply de results according to the genotype and phenotype we are interested in (A-B-)

Gene A

Parentals) Aa   x   Aa

Gametes) A   a     A   a

Punnett square)       A(1/2)      a(1/2)

                    A(1/2)    AA(1/4)     Aa(1/4)

                    a(1/2)     Aa(1/4)      aa(1/4)

F1) Genotype

      1/4 AA ⇒ 1/2A x 1/2A

      2/4 = 1/2 Aa ⇒ (1/2A x 1/2a) + (1/2A x 1/2a)

      1/4 aa ⇒ 1/2a x 1/2a

      Phenotype

      3/4 A- ⇒ 1/4AA + 2/4Aa

      1/2 aa

     

Gene B

Parentals) Bb   x   Bb

Gametes) B   b     B    b

Punnett square)   B      b

                   B       BB    Bb

                    b       Bb   bb

F1 Genotype

      1/4 BB ⇒ 1/2B x 1/2B

      2/4 = 1/2 Bb ⇒ (1/2B x 1/2b) + (1/2B x 1/2b)

      1/4 bb ⇒ 1/2b x 1/2b

      Phenotype

      3/4 B- ⇒ 1/4 BB + 2/4 Bb

      1/2 bb

The probability of having a dominant genotype and phenotype for both traits is,

Genotpe AABB ⇒ 1/4 AA x 1/4 BB = 1/16 AABBPhenotype A-B- ⇒ 3/4 A-  x  3/4 B- = 9/16 A-B-

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Snapdragons show incomplete dominance in their flowers. A pink snapdragon is crossed with a red snapdragon. What color(s) are the offspring

Answers

It should be a 50/50 color in a punnet square it’s a very simple thing to do, doesn’t mention which is dominant or recessive, nor co dominant just incomplete dominance so not exactly sure. Hope this helps

What are three ways you can reduce your risk of contracting a bacterial disease?.

Answers

Answer:

This is a very broad question, here are some thoughts to guide you:

Proper personal hygeine.

Avoiding exposure to bacteria.

Proper care of open wounds.

Avoiding damage to skin and mucosal membranes.

A species that produces two kinds of gametes, with unequal distribution of cytoplasmic organelles, is said to be a ______ species.

Answers

Answer:

heterogamous

Explanation:

hope this helps


3. The means by which a disease is contracted or
"spreads” is referred to as:
a.
transmission
b. transmutation
C. viral
d. spontaneous generation

Answers

Answer:

c viral

Explanation:

use the corona pandemic as an example, it spread quickly and became viral

*need help asap!* Each branching point represents a point in evolutionary history where an ancestral evolutionary lineage gave rise to a new lineage. The most recent common ancestor shared by all lineages in this cladogram is represented by the number

Answers

Answer:

a

Explanation:

Cladograms represent the relationship and the common ancestry between the organisms. Green algae are the most common ancestor that shares the lineage. Thus, option 1 is correct.

What is a cladogram?

A cladogram is a graphical representation of the organisms and various species that shares similar lineages and common ancestry. The green algae share a common ancestor as it is closest to the lineage branching that shares the most common features and traits.

Therefore, green algae have a common ancestor.

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Importance of oxygen cycle​

Answers

Answer:

The Oxygen Cycle is an essential biogeochemical Cycle to maintain the concentration and level of Oxygen in the atmosphere. The Oxygen Cycle is one of the main reasons for the existence of life on earth. Without Oxygen, the biosphere could not exist.

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What is the active element in most photovoltaic cells.

Answers

Answer:

Silicon. Silicon is, by far, the most common semiconductor material used in solar cells, representing approximately 95% of the modules sold today

Explanation:

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___ carry motor commands from the brain along the spinal cord.

Answers

Answer:

i guess "motor neuron" is the answer

Explanation:

how is climate change affecting Miami's food production and agriculture

Answers

Answer:

It might be extremely hot which means it makes it harder for special crops to grow.

Explanation:

Hope this helps!!!:)

Can you identify the animal phylum to which each example or characteristic belongs?.

Answers

Answer:sponge is one answer.

Explanation:

Your question is incomplete. Please read below to find the missing content.

The answers are :

Sponges - no body symmetry, central cavityCnidarians - jelly (jellyfish), radial symmetry, gastrovascular cavityMollusks - giant clamEchinoderms - sea star (starfish), water vascular system, internal skeleton, and spiny body surfaceFlatworms - tapewormArthropods - the fruit fly, body segments are the hard exoskeletonChordates - homo sapiens, contain tail, nerve cord, notochord, and pharyngeal slits.

What two features define animal phyla?

Animal phyla are categorized in steps with certain criteria, which include the form of coelom, symmetry, body plan, and presence of segmentation. Sponges (Porifera) have a primitive mobile degree of company and lack tissues and symmetry.

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Food poisoning is caused by eating contaminated foods. How Can it be prevented?

Answers

Answer:

By putting the food in a safe container

IMPORTANT!!!!!!
Without land regulations to protect rainforests, land continues to be destroyed using slash and burn methods. Which global need is increasing the rates of rainforest deforestation?


Local farmers need for new land

Global demand for natural gas

Country's demand for precious metals

Demand for palm oil from other countries

Answers

Answer: Local farmers need for new land

Explanation Forests are cut down to clear land for agriculture, livestock grazing, and settlement; for timber; to produce charcoal; and to establish tree plantations.

Deforestation occurs across all forest types, but is concentrated in the tropics and boreal regions. Temperate regions are experiencing a net increase in forest cover due to natural regeneration.

While deforestation produces food, fiber, and fuel, it can also pose risks to climate, biodiversity, and food security by degrading the ecosystem services normally afforded by healthy and productive forests.

The global need that is increasing the rates of rainforest deforestation is demand for natural gas. The correct option is B.

What is natural gas?

Natural gas is a naturally occurring mixture of gaseous hydrocarbons, primarily methane, with minor amounts of other higher alkanes.

Low levels of trace gases such as carbon dioxide, nitrogen, hydrogen sulfide, and helium are also commonly present.

Natural gas is formed naturally over hundreds of millions of years. Layers of decomposing plants and animals are subjected to intense heat from the Earth and pressure from rocks to form it.

Land continues to be destroyed using slash and burn methods in the absence of land regulations to protect rainforests. The global demand for natural gas is driving up rates of rainforest deforestation.

Thus, the correct option is B.

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PLS HELP! WILL GIVE BRAINLIEST!
Complete this sentence: Primary consumers receive about
of the energy available in biomass from producers.

100 percent

50 percent

35 percent

10 percent

Answers

Answer:

10 percent

Explanation:

Answer:

10 percent

Explanation:

Plants use carbon dioxide to build organic molecules during the process of:.

Answers

Answer:

The answer is Photosynthesis.

Explanation:

Its the process of change and carbon come from CO2.

Identify the cranial nerves associated with gastrointestinal tract motor output. a. facial
b. vagus
c. glossopharyngeal
d. hypoglossal
e. olfactory
f. trochlear

Answers

The cranial nerves which are associated with gastrointestinal tract motor output is vagas.

What nerves associated with gastrointestinal tract motor?

The parasympathetic system exerts its effects primarily through the vagus and pelvic nerves that comprise of lower large intestine, rectum, and anus. The vagus nerve regulates tone and volume by activating the enteric motor neurons.

So we can conclude that the cranial nerves which are associated with gastrointestinal tract motor output is vagas.

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Phenylketonuria is a(n) _______ disorder, meaning that it is passed from generation to generation via DNA.

Answers

Answer:

inherited

Explanation:

Phenylketonuria is a(n) inherited disorder, meaning that it is passed from generation to generation via DNA.

Are these two substances the same ? Explain why they are or are not .

Answers

Answer:

They are the not the same exact thing because they are both pawter both marked as yellow but there not the same yellow and marks they are Conductivity but in order of it to be the same it has to have everything the same and the melting temperatures are different and different Density

PLEASE HELP ASAP

which of these functions could be compromised in the
burn patient.


The functions are

1. Protection

2. Regulating body temperature

3. Water balance

4. sensory reception

Answers

Answer:

The correct answer is Regulation body temperature

The turn signal belongs to which subsystem of an automobile?(1 point)

Answers

The turn signal belongs to the car's signaling subsystem.

What is signaling subsystem?

The signaling system is basically composed of lights that show the location of the vehicle, as well as the maneuvers that are in progress or to be performed shortly. In other words: its importance for the safe driving of the vehicle is indisputable.

Whit this information, we can conclude that the turn signal belongs to the car's signaling subsystem.

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Because of their ability to rapidly divide during brain injury, which type of neuroglial cell would be more likely to form a brain tumor?.

Answers

Answer:

Astrocyte

Explanation:

She counts 8 worms and 15 pill bugs She sees a little bit of grass the worm makes up a

Answers

what is the rest of the question?

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Read the sample personal statement, and then answer the questions. what is the topic? what is the writers point of view? the height of a lamp is 100 centimeters. how tall is the lamp in inches? You are riding the bus to school and you realize it is taking longer because of all the stops you are making. The time it takes to get to school measured inminutes, is modeled using the function g(x) = x - 3x + 4x - 5, where x is the number of stops the bus makes. If the bus makes 2 stops after you board, howlong does it take you to get to school?AA. 1 minuteB. 3 minutesC. 7 minutesD. 11 minutes Kerri planted 36 sunflower seeds in equal rows. Which could NOT be a way Kerri arranged the seeds?HELP I ONLY HAVE 1 DAY (TOMORROW) PSYCHOLOGY how are genes different from chromosomes Complete the chart to compare the neares each story the perfect day Solve the inequality for x A tree is 30 feet tall. You measure the angle of elevation from the ground where you arestanding to the top of the tree and get 50 degrees. How far away from the tree are you? Which numbers are perfect squares? Check all that apply.121618324494100 [tex]Help\: plssss[/tex][tex]-38x+43=-40x-57[/tex] The radius of a circle is 3 inches. What is the circles area What is the study of compoundsthat contain bonds betweencarbon atoms? Please help! Also real quick you can only put 3 digits!! Mr. DeSiena wants to rent a car from Sierra Autos. Mr. DeSiena has drawn the graph of the line to help him figure out how much it will cost him to drive different distances. On the graph of the line, x represents the number of miles a car is driven, and y represents the charge for driving that many miles. If Mr. DeSiena has budgeted $150 to pay for his car rental, what is the maximum number of miles that he can afford to drive?A.50 miles B.75 milesC.100 milesD.200 milesplssss i need the answer quick!! Pls help! It's almost due soon! what is (1/8) to the power of 8 Pls help me get this. Right can you guys give me a serious answer please? Write an equation of theline that passes throughthe given points (-3,-1)(2, 2) Help help help help help help