Answer:
b. a person has an emotional need for a drug
1. In a sample of double-stranded DNA, 10% percent of the nitrogenous
bases are guanine (G). What percentage of the nitrogenous bases in the
sample are cytosine (C)?
10%
80%
40%
90%
Answer:
10
Explanation:
PLEASE HELP WILL MARK BRANLIEST
Select the correct stages.
Identify the ways in which carbon is added to the atmosphere.
Answer:
photosynthesis, factory emissions
Explanation:
which structures in male produce fluids that mixes with sperm to form semen
Explanation:
The testicles. Lol or Penis. Imma try to be mature
All of the following are ways in which ecosystems change naturally?
seasonal variation
succession
climate change
deforestation
what is the role of a cytoplasm
Answer:
Cytoplasm is responsible for giving a cell its shape. It helps to fill out the cell and keeps organelles in their place
Explanation:
Cytoplasm contains molecules such as enzymes which are responsible for breaking down waste and also aid in metabolic activity.
True or false? To make up for the loss of energy when solar energy is used by primary producers and then transferred up the food chain, a continuous supply of solar energy to the ecosystem is required.
Answer: Energy can not be lost, rather it can be converted into other forms of energy , so false.
Explanation:
To make up for the loss of energy when solar energy is used by primary producers and then transferred up the food chain, a continuous supply of solar energy to the ecosystem is not required. Thus, the given statement is false.
What is energy cycle in an ecosystem?The energy flow in the ecosystem is important to maintain an ecological balance in the ecosystem. The producers in a food chain synthesize food by the process of photosynthesis. A part of this energy is stored within the plant species.
The energy cycle in an ecosystem is based on the flow of energy through the ecosystem. The energy from sunlight is converted by the plants them into the growing new plant materials including the flowers, fruits, branches, trunks, and roots of the plants. Since, the plants can grow by converting solar energy directly into their tissues.
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Which would be the most dangerous to swallow?
A. thermoacidophiles
B. halophiles
C. Escherichia coli
D. a bacteriophage
Answer:
D. a bacteriophage
Explanation:
A. and B. need extreme environments to survive.
C. is actually beneficial to us, especially in the digestive tract.
D. is a type of virus!
Which type of organism developed first?
A. Chordates
B. Vertebrates
C. Deuterostomes
D. Sponges
Answer: D sponges, i just got this wrong lol
Explanation:
Why sponges develop first?
Sponges belong to the oldest and most simple animals that had evolved, and their discovery in such old rocks meant that they may have been the first animals.
How did sponges evolve?
Among extant animals, only sponges could have evolved directly from protozoa without changing feeding mode.
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Match the time period with the correct layer of fossils (mya = millions of years ago). ITEM BANK: Move to Bottom 175 mya250 mya400 mya 175 mya 0
Answer:
0 mya, 175mya, 250mya, 400mya
Explanation:
The substance which highest million year ago should be more in-depth in the soil hence 400mpa should occupy the highest depth below the ground.
How do adaptions affect a species?
A. They prevent independent assortment.
B. They make the species more likely to survive.
C. They make the species less likely to survive.
D. They give the species less genetic diversity.
HELP!!
Answer:
Explanation:
B. :) For example, camels have adapted to the scorching heat they survive in. Adaptations help a species live. :D If I helped please mark brainliest!
Adaptations affect a species by making the species more likely to survive. Thus, the correct option is B.
What is Species?Species may be defined as a cluster of organisms that can reproduce with one another in nature and produce fertile offspring.
Adaptations may be defined as the process through which an organism makes itself better to be suited to the natural environment.
It increases the chances of a particular species surviving and reproducing in a natural environment.
Therefore, adaptations affect a species by making the species more likely to survive. Thus, the correct option is B.
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What happens first at each origin of replication?
A: enzymes kill viruses
B: enzymes remove bases
C: enzymes unwind DNA
D: enzymes eat nucleotides
Answer:
The answer is C.
Explanation:
At first, an enzymes called Helicase unwind the double helix in a DNA .
Many scientists would argue that the reproductive system is the most important system in the body. Which of these would best defend that thought?
A) without the reproductive system, a species would not be able to survive
Eliminate
B) the reproductive system is necessary to maintain a strong skeletal system
C) the reproductive system must help filter wastes so the body can remain healthy
D) without the reproductive system, a body would be unable to transport oxygen to all of the cells in the body
Answer:
b is correct
Explanation:
Answer:
A
Explanation:
we make babies with the reproductive system
explain the difference between the principles of overload and progression
Explain how your model demonstrated energy transformation from thermal energy to mechanical energy during a volcanic eruption.
(I mixed warm water, vinegar, and baking soda)
Answer:
Well to begin with, the thermal energy is mostly provided by the energy contained in warm water, when mixed with the other two components the chemical units are modified to form a composite solution that will result in an energy release, this energy release generate a movement, which in this case is the eruptive movement simulating the eruption of a volcano.
Explanation:
By mixing the vinegar (which is an acid) with the baking soda (which is a base), they react and transform into water, sodium acetate (a salt), and carbon dioxide (a gas). Carbon dioxide (CO2) is the gas that causes bubbles to form from the eruption of the volcano and balloons to swell.
!PLEASE HELP!
One type of bioremediation uses ____ to break down wastes and pollutants into less harmful material.
a. bacteria
b. vaccines
c. pasteurization
d. fission
What is sexual selection
Bacteria are usually classified by
Answer: Bacteria are classified into 5 groups according to their basic shapes: spherical (cocci), rod (bacilli), spiral (spirilla), comma (vibrios) or corkscrew (spirochaetes). They can exist as single cells, in pairs, chains or clusters. Artwork of bacterial cells becoming resistant to antibiotics.
Explanation:
ASAP PLZ Which processes are affected by freeze and thaw cycles? Check all that apply. creep deposition landslide slump weathering
Answer:
i think it is creep and slump
Explanation:
HOPE THIS HELPED!!!
Answer:
Freeze-thaw weathering is a process of erosion that happens in cold areas where ice forms. A crack in a rock can fill with water which then freezes as the temperature drops. As the ice expands, it pushes the crack apart, making it larger.
Explanation:
What is the purpose of the motor neuron?
to carry information from sense organs to the brain or spinal cord
to carry information from the brain or spinal cord to sense organs
to carry information from the brain or spinal cord to muscles and glands
to carry information from muscles and glands to the brain or spinal cord
Answer:
ans this question is no 3
Explanation:
Because it sends electrical output signals to the muscles affecting the muscles ability to functions.
Amoeba Sisters Video Recap: Mutations
I need the answer pls
Answer:
Portion of mu
Explanation:
To know more about mutations ,
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Why was natural selection an important contribution to the theory of evolution?
It proved that evolution is true.
It explained how evolution works.
It summarized the process of evolution.
Olt highlighted the main points of evolution.
Answer:
It explained how evolution works
Explanation:
Answer:
It's C
Explanation:
how might smartphones linked to climate change
Answer:
Smartphones and data centres are damaging to the environment and will have the biggest carbon footprint in the tech industry by 2040, researchers have found. ... While these phones consume little energy to operate, 85% of their emissions impact comes from production, the researchers said.
Explanation:
Answer:
Making a phone accounts for 85–95 percent of its annual carbon footprint because manufacturing its electronics and mining the metals that go into them is energy-intensive. The analysis showed that smartphone emissions will go up from 17 to 125 megatons of carbon dioxide equivalent between 2010 and 2020.
Explanation: Is it right 0-0 alright I am going to go play minecraft. BYE :p
Make a list of objects, products, and any other items around your house where plants were involved in the production of the item. You should have a list of at least twenty items
Answer: This is all I could think of, but I hope this helps a litttle
Explanation:
Shampoo
rubber
medicine
tea
clothes
paper
The changing of the rivers created more ____________ for animals
aRegeneration
bVegetation
c Erosion
d Habitats
Answer:
D) Habitats for animals.
Explanation:
It depends what the question means when it says 'the changing of the rivers'. I took it as the rivers are changing size and becoming more spread out. In that case, I chose habitats.
The more water there is, the more habitat there is for sea life.
All in all, the correct answer is D).
Describe a few ways in which an individual person can help protect biodiversity.
Answer:
An individual person can help protect biodiversity in multiple ways.
This person can educate themselves on biology and learn exactly what the problem is.This person can educate others once learning about it himself.This person can advocate for the environment.This person can cut down on their waste, lessening the amount of trash going into the environment.This person can be aware of what he buys and how it affects biodiversity.Explanation:
I don't know if this was the answer you're looking for, but I hope it's a start!
Explain how Natural Selection can lead to evolution.
Answer:
Sample Response: When the environment changes, organisms best suited for the new environment survive and reproduce. This allows the favorable adaptation to be passed on to the next generation. Over time, more and more organisms will have the favorable adaptation, and the population will evolve.
Explanation:
Just did it.
Which layer best represents the mantle?
A. 1
B. 2
C.3
D.4
What are the five evidences that a chemical change has taken place ?
Answer:
Odor, temperature change, precipitate formation, production of gas bubbles, and a color change!
Explanation:
No explanation needed really.
what will happen if the cilia cleared the mucus?
Answer:
You sneeze
Explanation:
I think so, when the cilia clears the germs you sneeze
Write two sentences on global warming
Answer:
Global warming is a major crisis in the world. It is when companies or industries dump or pollute the air or the nature that is around us.
Explanation:
Answer:
I'm glad you asked!
Explanation:
Global warming is temperature of earths surface and more, like atmosphere.Global warming is Mostly about temperature and crisis.People are hurting animals in the ocean and throwing garbage.
Hope that was helpful.Thank you!!!
