Answer:
Explanation:
Animal experiments may result in clinical trials of biologically faulty or even harmful substances, thereby exposing patients to unnecessary risk and wasting scarce research resources. Animal toxicity studies are poor predictors of toxic effects of drugs in humans.
Answer:
Experimenting with animals is not justified with anything, they practically play with beings that have life, emotions and that feel pain like all living beings.
Advances the experiments that are done on them, are not used, or the purpose is simply lost, as well as their life.
How does the Earth's atmosphere interact with the sun's rays? A. The atmosphere absorbs the sun's energy and holds it as heat to warm the Earth. B. The sun is outside of the atmosphere and doesn't interact with it at all. C. The atmosphere deflects the sun's poisonous elements. D. None of the above
Answer:
The atmosphere absorbs the sun's energy and holds it as heat to warm the Earth
Explanation:
This is because the atmosphere also interacts sun radiations that comes in contact with through a process called molecular scattering. Light rays are very minute and there are alot of small molecules that float in the atmosphere and when light comes from the sun, the smaller molecules scatter the Ray's and it warm the Earth. Huge numbers of small molecules float in the atmosphere. There is a layer called ozone which absorb sun radiations.
What is the main source of Earth's light?
Answer:
The Sun
Explanation:
Answer:
The sun
Explanation:
The main source of light on Earth is the Sun. Sunlight provides the energy that green plants use to create sugars mostly in the form of starches, which release energy into the living things that digest them. This process of photosynthesis provides virtually all the energy used by living things.
Which of the following correctly defines one of the four parts of natural selection?
a
variation: the difference in the heritable traits of an individual from those of other individuals in the same species or population
b
extinction: the state in which all of the members of a species have died
c
overproduction: the process by which each generation produces more offspring than the previous generation produced
d
adaptation: an acquired trait that lets an organism better survive in its environment
Answer:
a- variation
Explanation:
Answer:
A
Explanation:
correct option A- variation
during cytokinesis in plant cells,
A. a cell has dinner on a plate
B. the cell loses some of ts DNA
C. a cell plate forms, and the cell splits in two
D. the cell wall breaks.
Answer:Cytokinesis is the final stage of cell division in eukaryotes as well as prokaryotes. During cytokinesis, the cytoplasm splits in two and the cell divides. ... In plant cells, a cell plate forms along the equator of the parent cell. Then, a new plasma membrane and cell wall form along each side of the cell plate.
Explanation:
Answer:
B
Explanation:
I hope this helps!!
Cockroaches have low genetic diversity, yet are in no danger of going extinct. Which statement is most correct about the reproductive success of cockroaches?
A. Cockroaches are the "fittest" of all beetles.
B. Cockroaches have adaptations to be able to live in any environment.
C. Cockroaches have evolved to be generalists.
D. Cockroaches have adaptations that allow for interbreeding without any harm.
Answer:
B
Explanation:
Answer:
B
Explanation:
cockroaches have adaptations to be able to live in any environment
What are the two ways nitrogen gas is turned into a form plants and animals can use?
A: Lightning and Worms
B: Lightning and Bacteria
C: Bacteria and Worms
D: Bacteria and Fungi
Answer:
B
Explanation:
Just studied this
Answer:
I think it C if you get it wrong sorry please don't blame me
How is the DNA in prokaryote different from the DNA in a eukaryote?
Answer:
Prokaryotic DNA is found in the cytoplasm while Eukaryotic DNA is found within a nucleus.
Explanation:
Can someone tell me what's the syllabus taught in American high schools, like in 10th grade? I'm not an American student and I'm just curious. (didn't mean to sound creepy). thank you so much.
Before higher education, American students attend elementary and high school for a combined total of 12 years. These years are known as the period from first grade to twelfth grade.
At the approximate age of six, American children begin elementary school, which is exclusively called “elementary school” (elementary school). They attend this school for five or six years and then go on to high school.
High schools are made up of two programs: the first is called "middle school" or "high school" (middle school) and the second is called "high school" (high school). A diploma or certificate is awarded upon graduation from high school. Upon graduation from high school (twelfth grade), American students can go on to college or university. Studies at a college or university are known as "higher education."
In Gregor Mendel's study with the color or peas, which ones were dominant and which ones were recessive?
Answer:
The peas with the purple flowers were dominant and the peas with the white flowers were recessive.
Explanation:
In Gregor Mendel's study, he studied pea plants with purple flowers and white flowers. The purple flowers were dominant, and whenever the allele for a purple flower was present is was visible on the plant. The white flowers were recessive because if an allele for a purple flower was present, then the flower was purple. The flowers were only white if both alleles were for white flowers.
¿En cuál de los siguientes alimentos es posible encontrar una mayor cantidad de proteínas? A. Pera. B. Agua. C. Carne. D. Mantequilla.
Answer:
C. Carne
Explanation:
La proteínas representan un macronutriente (al igual que lípidos y carbohidratos) fundamental para el organismo. El consumo de proteínas es clave en la dieta porque el organismo utiliza estas moléculas (o sus bloques de construcción, los aminoácidos) para construir diferentes estructuras celulares y llevar a cabo diversos procesos vitales tales como, por ejemplo, reparar y desarrollar tejidos, funciones endócrinas, defender al organismo de agentes patógenos infecciosos, etc. En un adulto, la ingesta diaria de proteína debe rondar del 15 al 35% del total de las calorías consumidas al día, lo cual representa aproximadamente de 0.8 a 1.3 gramos por cada kilogramo de peso corporal. La carne es un alimento que aporta un gran contenido de proteínas y también es fuente de vitaminas y minerales (es decir, micronutrientes). Otros alimentos ricos en proteínas incluyen, por ejemplo, huevos, leche, legumbres (arvejas, garbanzos, lentejas) y la soja.
What is the definition of Nuclear Energy? PLS HELP
PLEASE HELP ME!!!:(
Procedure:
1. Hold the ruler horizontally at both ends. Bend
the ruler.
Q1: Do you feel the ends of the ruler pushing
against your hands?
2. Now release the ruler.
Q2: What will happen to the ruler as you
release it?
3. Now, hold one end of the ruler firmly with your right hand and bend the ruler
again with your left hand.
Q3: What was stored as you bent the ruler using your left hand?
4. While keeping a tight grip with your right hand, take away your left hand
quickly
Q4: What will happen to the ruler as you take away your left hand
quickly?
:)( :>
Answer:
YES
Explanation:
A RULER HAS TWO ENDS THAT'S WHY IF YOU HOLD IT ON BOTH SIDES YOU CAN FEEL THE ENDS OF THE RULER PUSHING AGAINST YOU HANDS
Which factors below do NOT influence how much energy a person needs.
Answer:
hair color
Explanation:
it doesn't come hafter about the color b
Help please I’ll give brainly
A large amount of sediment is deposited on a plain in a short amount of geologic time. what could happen to the ground/crust where it is deposited? why?
Answer:
The crust subsides due to the weight of the sediment that accumulates.
Explanation:
Identify the following structure indicated
by the arrow.
CCG GCC ACU CCC
GGG
(
UGA
A. Anticodon
B. Amino Acid
C. tRNA
D. Codon
f ज
Answer:c
Explanation:
WILL GIVE BRAINLY IF CORRECT!! LOTS OF POINTS PLEASE HELP!! I BEG OF YOU!!! WILL REPORT IT RANDOM OR INCORRECT!!! PLEASE DON'T GIVE ME AN INCOMPLETE QUESTION!!
1. Match the organism with its correct anatomical function from the image above.
ORGANISMS -
-human
-whale
-cat
-bat
-bird
-crocodile
ANATOMICAL FUNCTION-
-walking, and hopping
-swimming, walking/crawling
-flying, flapping wings
-using tools, picking up and holding objects
-swimming
-running, walking, jumping
Human - Using tools, picking up and holding objects
Whale - Swimming
Cat - Running, walking, jumping
Bat - Flying, flapping wings
Bird - Walking, and hopping
Crocodile - Swimming, walking/crawling
It was kind of confusing because both birds and bats fly and flap their wings, but birds also walk and hop, so this is correct
what characteristics describes an old river
Answer:
Rivers possess different features as they age. Old rivers usually have a low stream (gentle) gradient and low erosive energy. They usually have broad U shape, the water is usually brown and they have flood plains. Seasonal floods are also common.
What is uncoiled,
stringy DNA
called?
A. Chromatin
B. Chromosomes
C. Chlorophyll
D. Sister
Chromatids
A. Chromatin is the uncoiled, stringy form of DNA in the nucleus of a cell.
What is chromatin?It is made up of DNA molecules and associated proteins, such as histones, that help to package and organize the DNA into a more compact structure. Chromatin can take on different forms, ranging from loose and loosely coiled to tightly packed, depending on the stage of the cell cycle and the specific needs of the cell.
When a cell is preparing to divide, the chromatin condenses and forms distinct structures called chromosomes, which can be visualized under a microscope. Chromosomes contain the genetic information that is passed from one generation to the next.
Learn more about chromatin, here:
https://brainly.com/question/11073325
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Explain the consequences of an increase of two degrees Fahrenheit.
Answer:I think it was The Heat waves can be dangerous, causing illnesses such as heat cramps and heat stroke, or even death. Warmer temperatures can also lead to a chain reaction of other changes around the world. That's because increasing air temperature also affects the oceans, weather patterns, snow and ice, and plants and animals
Explanation:
hope this helps have a nice night ❤️❤️❤️
Which factor is most likely to cause an increase in the number of rabbits living in an area?
A Less water
B fewer predators
C lack of shelter
D limited food
Answer:
B fewer predators
Explanation:
with fewer predators the rabbits can live safely in an area.
Name and briefly describe three examples of mechanical weathering.
How is a spark from touching a doorknob the same as a bolt of lightning
Explanation:
That little spark you get when you touch the doorknob is essentially a miniature lightning bolt. When rain clouds move through the air, they build up positive and negative electric charges (Figure 7). So clouds have static electricity too! And when enough charge builds up, electric charges jump between the cloud and the ground.
Hope this helps you get your answer, but I'm sorry if it doesn't I did my best to sum it up as quickly and simple as I could for you.
7. If the diameter of the field of view when using the 4x objective is 3 mm, what is the area of the field of view when using the 4X, 10X, and 40X objectives
Answer:
Using 4X view =
1.767 x 4 = 7.068mm
Using 10X view
1.767 x 10 = 17.67mm
Using 40X view
1.767 x 40 = 70.68mm.
Explanation:
If the diameter when using 4x objective = 3mm
then the original diameter = 3/4 = 0.75 mm
The diameter of the field is 0.75 mm
Area of a circle = pie/4 x diameter square
pie = 22/7 or 3.14
diameter = 0.75
The area of the field
3.14 x 0.75 2 =
3.14 x 0.5625=
1.767mm.
The original area of the field = 1.767mm
Using 4X view =
1.767 x 4 = 7.068mm
Using 10X view
1.767 x 10 = 17.67mm
Using 40X view
1.767 x 40 = 70.68mm.
Which statement best compares the aorta and the pulmonary vein?
O Both structures control the flow of blood.
O Both structures are involved in transporting oxygenated blood.
O Both structures separate the left and right atrium.
O Both structures carry plasma back into general circulation.
Answer:
Both structures are involved in transporting oxygenated blood.
Explanation:
Edge 2021
What is structure B pointing to?
Answer:
hexachlorophene
Explanation:
i know this is right
Compare and contrast DNA and RNA.
PLEASE HELP!!!!
A laboratory investigation included examining multicellular organisms that has a nucleus and could move from one place to another. The organisms probably belong to the kingdom:
A. Animalia
B. Eubacteria
C. Plantae
D. Fungi
Answer:
A. Animalia
Explanation:
Animals are multicellular organisms. They have a nucleus and can move from one place to another.
In which phase of mitosis does chromatin condense and centrioles move to opposite ends, while the nuclear envelope breaks down and spindle fibers form?
Answer: Prophase!
Explanation:
Why are lab safety rules important? I’m currently doing an essay with minimum of 250 words. You don’t really have to do that but can y’all give me some facts/ideas to put in my essay? Thank you and good day <3
Answer:
u have to always wear ur science goggles all the timke, and when u take it off, u have to be looking the opposite direction, always wear gloves, no messing around near the chemicals, always be careful
Explanation:
pls mark brainliet