Help I’ll mark u brainless
Answer:
The answer is A
Explanation:
It is A because rock, water, and sand are all abiotic , is is NOT c because algae is a biotic factor
can trees and plants cause soil erosion?
Answer:
no
Explanation:
it will not cause soil erosion because tree or plant root will handle it very strongly
Put the following events in the correct order:
A. mRNA leaves the nucleus and goes into the cytoplasm
B. The DNA sequence is copied to the mRNA sequence during transcription
C. Proteins determine our traits
D. Ribosomes read the mRNA and create a chain of amino acids
Answer:
the correct order is B,A,D,C
Help! Will give brainliest to the best answer.
Using a specific example, predict and explain how the release of non-native organisms can affect local, national, and even global ecosystems.
If there was no plant's, what would happen to the carbon dioxide
Answer:
There won't be carbondioxide and i think that will affect us big time
A student drew the picture of a human body system shown below
Pls help its due today
Answer:
your answer would be G
Explanation:
delivering oxygen and nutrients to organs and cells and carrying their waste products away.
Or, in another way, exchange gasses with the environment.
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The total acreage destroyed by the gypsy moth is in the
hundreds.
thousands.
millions.
billions.
Answer:
millions
Explanation:
Which part of the brain controls balance?
Cerebrum
Cerebellum
Brain stem
None of the above
Answer:
Cerebellum
Explanation:
The cerebellum, in the back of the brain, controls balance, coordination and fine muscle control (e.g., walking).
An organism made up of only one cell is called...
A. multicellular
B. unicellular
Answer:
unicellular
Explanation:
Unicellular organisms are made up of only one cell that carries out all of the functions needed by the organism.
Answer:
Unicellular
Explanation:
Uni means consisting of one, and Multi means more than one (:
PLEASE HELP!!!
Global dimming __________and lessens the global warming that has been predicted.
a. heats the atmosphere
b. takes place on the surface of the Earth in a reflective response to the Sun
c. cools the atmosphere
d. causes acid rain
e. causes glacier melt
What is the greatest threat humans pose to biodiversity?
Answer:
habitat loss, over-harvesting, and introduction of exotic species
Explanation:
The way that people have altered natural environments to create room for farms or to collect natural resources has posed the greatest harm to biodiversity yet, but as climate change intensifies, it will have a rising influence on ecosystems.
What is biodiversity loss?The term "biodiversity loss" describes the decline in biodiversity brought on by the extinction or relocating of species. Some people might not consider the extinction of a certain species to be significant, especially if it is not a charismatic species such as the Bengal tiger or the humpback dolphin.
However, according to estimates from scientists, the present pace of species extinctions is several times higher than the background, or average, rate seen throughout Earth's history. Within our lifetimes, this amounts to the extinction of tens of thousands of species.
The breakdown of ecosystems is anticipated to have drastic repercussions on human welfare. Because of the intricate relationships between species, a loss of biodiversity may have a ripple effect on ecosystems.
One species' extinction, for instance, may result in the extermination of another. Scientists evaluate which species are in danger of extinction as well as the state of the ecosystems to gauge the loss of biodiversity.
Therefore, the way that people have altered natural environments to create room for farms or to collect natural resources has posed the greatest harm to biodiversity yet, but as climate change intensifies, it will have a rising influence on ecosystems.
Read more about biodiversity loss, here https://brainly.com/question/9634188
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Is there a way to know any test exam style questions for 9th grade biology because biology is a very complex subject and lots of information to learn and I want to study the key details thanks:D
The changes over time in the inherited traits of a type of organism are ____.
A) growth
B) biogenesis
C) spontaneous generation
OD) evolution
The changes over time in the inherited traits of a type of organism are known as evolution of the species. Thus, the correct option is D.
What is Evolution?Evolution is change in the heritable characteristics of biological populations which are taking place over the successive generations. These characteristics are the expressions of different genes, which are passed on from the parents generation to their offspring during the time of reproduction.
Variation in the genetic material tends to exist within any given population as a result of the genetic mutations and recombination. Evolution in a species occurs when the evolutionary processes such as natural selection and genetic drift act on this variation in species, resulting in certain characteristics which are becoming more common or more rare within a population than other traits.
Therefore, the correct option is D.
Learn more about Evolution here:
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What is the most common type of desalination plant in the world?
Answer:
The Hadera seawater reverse osmosis (SWRO) desalination plant in Israel is the largest seawater desalination plant in the world.
5. As blood enters the capillaries, molecules of oxygen move from the blood into the tissues of the body. Which of the following explains this movement?
d. The concentration of oxygen in the blood is the same as the concentration of carbon dioxide in the tissues.
e. The concentration of oxygen in the blood is higher than that in the tissues f. The concentration of oxygen in the blood is lower than that in the tissues 1
g. The concentration of oxygen in the blood is the same as that in the tissues.
Answer:
The answer is e
Explanation:
Oxygen moves due to diffusion, and the diffusion of oxygen occurs from higher concentration to lower concentration that is from the blood into the tissues
hi! i’ll give brainliest please help
Answer:
My Guess Is C if im wrong sorry
Explanation:
Just thinking logicaly
A __________ is an example of a signal molecule that can bind to an intracellular receptor and thereby cause a gene to be turned on or off. a protein b glyceride c nucleic acid d steroid e carbohydrate
Answer:
D. steroid
Explanation:
Intracellular receptors are a type of receptors located inside the cell, specifically in the cytoplasm or nucleus. When intracellular receptors are activated by ligands called SIGNALLING MOLECULES, they change shape and regulate genetic expression in the nucleus i.e. they induce turning on and off in a gene.
However, signalling molecules that activate intracellular receptors are usually hydrophobic hormones because they need to easily diffuse through the cell membrane and bind to the receptors located internally. Example of these hydrophobic signal molecules are STEROIDS.
Different versions of a trait are called...
A. Alleles
B. Loci
C. Chromosomes
D. Punnett squares
Answer:
Different versions of a trait are called...
A.ALLELES
B.LOCIC.CHROMOSOMES
D.PUNNETTT SQUARES
How does increasing and decreasing the temperature affect the kinetic energy of molecules?
Please help
If the temperature is increases, the average speed of the kinetic energy will also increase but when the temperature is decreased, the container wall area decreases and therefore molecule-wall collision frequency also increases.
Which answer best illustrates evolution by natural selection?
(2.9 points)
A. Ancestors' legs grew longer from climbing to escape predators.
OB. Ancestors that had longer legs could not produce more offspring.
O c. Ancestors wanted longer legs to escape predators and therefore grew longer legs
OD. Ancestors with longer legs escaped predators more easily and lived to produce more offspring.
Answer: A
i know this because i have taken this before
Astronomers use the light year to describe the relationship between objects in space, for example, the andromAda galaxy is 2.5 million light years from earth which of the following units is most similar to the light year
A. Gram
B. Second
C. Kilometer
D. Degrees Celsius
How does RNA polymerase know where to start and stop making a strand of RNA?
Answer:
Each gene has a beginning and an end. At the beginning of each gene is a similar sequence that tells the RNA polymerase to start working. The same is true at the end of each gene where a specific sequence tells the RNA polymerase to stop transcription
bacteria use this form of reproduction
Answer:
Bacteria reproduce by binary fission. In this process, the bacteria, which is a single cell, divides into two identical daughter cells.
Explanation:
Bacteria reproduce by binary fission. In this process the bacterium, which is a single cell, divides into two identical daughter cells. Binary fission begins when the DNA of the bacterium divides into two (replicates).
PLEASE ANSWER! 100 POINTS!
Which of the statements below is true about osmosis?
a. As the universal solvent, water loves dissolving solutes and will always go to a hypertonic area.
or
b. As the universal solvent, water loves dissolving solutes and will always go to a hypotonic area.
In an experiment determining the effects of antibiotics on the treatment of pneumonia in mice, two groups of mice with pneumonia are compared. One group, group A, receives no antibiotic, and the other group, group B, receives 10 mg/kg of body weight of a new antibiotic. Besides the administration of the antibiotic, there are no differences between the two groups of mice. What is the purpose of group A
Answer:
Group A is the control of the experiment
Explanation:
In an experiment, the control group is the group that does not receive any experimental treatment. The control groups are kept in the same condition as the experimental group except the variable being tested (independent variable).
In this question involving an experiment to determine the effects of antibiotics on the treatment of pneumonia in mice. Two groups of mice were employed. One of the groups (group A) received no antibiotic while the other group (group B) received 10 mg/kg of antibiotics. This means that GROUP A is the CONTROL GROUP of this experiment.
state whether volcanoes are evenly distributed over earth’s crust or concentrated in specific areas
Answer: Concentrated in certain areas
Explanation:
Volcanoes are usually formed as a result of collisions or other activity between plates at plate boundaries.
As a result, they are more usually concentrated in zones where there is more plate activity such as at the edges of continents, on islands and beneath the seas in certain areas because this is where plates usually collide with each other.
Which of the following is an example of a physical change but not a chemical change?
Teeth breaks down food into smaller particles.
Bile in the liver breaksdown fat globules.
Salivary amylase breaks down the starch in the mouth.
Hydrochloric acid in the stomach grind the protien in the stomach.
Answer:
teeth breaks down food.....
Explanation:
all of the other ones have a chemical change to them, but the teeth one is just crushing food to make a physical change
Which of the following limits cell size? Select all of the answers that apply.
Answer:
Cell size is limited by a cell's surface area to volume ratio. A smaller cell is more effective and transporting materials, including waste products, than a larger cell. Cells come in many different shapes
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An invasive species of Asian carp was introduced to the Mississippi River and have thrived. It threatens to eliminate many native species of fish. Which of these could be a contributing reason why?
A
The invasive species of fish lay many more eggs than the native species.
B
The invasive species of fish eat a greater variety of foods than native fish, destroying entire ecosystems.
C
The invasive species can survive in more extreme temperatures and water with a lower oxygen concentration.
D
All of these can be contributing reasons.
Answer:
D, they are all contributing reasons.