A scientist noticed that in acidic pond water some salamanders developed with curved spines. This was an example of a(n)
А
research
o
B
inference.
о
С
observation
D
hypothesis
Answer:
С observation
Explanation:
This mode of investigation is an example of observation.
Observations are carried out using our senses and keen inquisitiveness. It can take place within a short period of time or an extended duration.
So; noticing the change in shape of the salamanders is making an observation.
Our sight, smell, taste e.tc are all observational tools.
Answer:
С. observation
Explanation:
Hope this will help
Please help me, List the living and non- living things shown in the picture, marking Brainly !
Answer: Living- hair,girl butterfly,cow,bacteria,tree,Jellyfish,seaweed,mouse,
Non-living-Computer,cellphone,robot, car,clouds,wind,fire,fossil,lightning,bread,clock,sand,snowman,sun,jack-o-lantern
Explanation:
true or false:
One difference between somatic cells and gametes is that somatic cells are identical to one another, while gametes are not
Answer:
true.
Explanation:
all the somatic cells of an organism have same number of chromosomes while gametes are haploid and have half number of chromosomes. so gametes are different from somatic cells.
Which of the following is a correct way to report an example of the speed of an object?
A 50 s/m
B 50 m/km
C 50 m/s
D 50 s/km
Answer:
C. 50m/s
Explanation:
speed is distance/time
m/s
How does washing your hands with soap inactivate coronaviruses that may be on your hands?
Answer:
Soap has chemicals that kill bacteria
When you wash your hands with soap and water, you surround any microorganisms on your skin with soap molecules. The hydrophobic tails of the free-floating soap molecules attempt to evade water; in the process, they wedge themselves into the lipid envelopes of certain microbes and viruses, prying them apart.
Yea I copied it owo
If false, please make it a correct statement. A rancher uses a particular chicken for breeding purposes because, on average, she observed that the chicken laid more eggs than other chickens. The rancher selecting the desirable trait would be considered an example of natural selection.
a) true
b) false
Answer:
b) false
Explanation:
The given statement is false. the selection process used by the rancher is an example of artificial selection and not natural selection.
Artificial selection is defined as the selection process done by humans on the basis of desirable characters while in natural selection the selection is based on the adaptive characteristics of animals. In the given example rancher choses a desirable character of chicken that lays more eggs.
Hence, the given statement is "false".
Do dead trees have cells
in the drawings below, the arrows labeled Force 1 and Force 2 represent two forces acting on an object. The directions of the arrows show the directions of the forces, and the lengths of the arrows represent the strengths of the forces. Which answer choice shows an object being acted upon forces that do NOT add up to a Net Force of zero?
Answer:
The answer is the last one
Explanation:
Most animal lineages evolved during the period.
Answer:
Cambrian period
The Cambrian period, occurring between approximately 542–488 million years ago, marks the most rapid evolution of new animal phyla and animal diversity in Earth's history.
Explanation:
Answer:
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Can’t roots be eaten as food? True or false.
Answer:
false
Explanation:
hope dis helps
Answer:
true, people have been eating roots for years
Hope this helps!!!
plz mark brainliest
Explanation:
Explain how seasons are similar and different on your Uranus as compared to the Earth.
Answer:
Uranus, like Earth, has four seasons. ... For starters, the length of Uranus' seasons are different from ours. It takes Earth 365 days to orbit around the sun, but it takes Uranus 84 Earth-years, more or less. So Uranus' year is 84 Earth-years along, and each season on Uranus lasts 21 earthly years.
. Gymnosperms are a group of seed plants that produce___
1.seeds, pollen and fruit
2.no flowers or fruit
3.no seeds or pollen
4.flowers and fruit
Answer:
2 is the right answer
Explanation:
they do not produce fruit or flowers think of a pine treee of a spruce tree
Gymnosperms are a group of seed plants that produce no flowers or fruit. Therefore, option B is correct.
What are gymnosperms?A relatively tiny class of plants known as gymnosperms produce seeds and lack flowers. This means that unlike in a fruit, where the seeds are formed inside the reproductive structure, they are produced on the surface of the reproductive structure.
The Coniferophyta, Cycadophyta, Gingkophyta, and Gnetophyta are the four primary phyla that makeup gymnosperms. Conifers, which have needle-like leaves and thrive in arid, cold climates, are the most common gymnosperm.
Some examples of gymnosperms are ginkgo, pine, melinjo. sago palm, cedars, and spruces. Gymnosperms are a group of seed plants that produce no flowers or fruit. Therefore, option B is correct.
Learn more about gymnosperms, here:
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Where does competition for reproduction mostly likely occur
Scientists who have strong moral beliefs about the subject that they study may show bias in the way they interpret their data
True
False
Please help me
The smaller the dose required to achieve a drug action the greater the drug potency try or false
Answer:
the answer is true
the movement of rock by wind is known as _____
can someone help me with this?
Answer: erosion?
Explanation: the definition of erosion is the movement of rock particles by wind.
Answer: i agree with the person above me
Explanation: it's erosion
Rachel drove 300 miles from her home to Philadelphia to visit her sister and then returned home a week later. At the end of the trip what was her displacement and distance traveled in that order
Answer:
The correct answer would be - zero miles, 600 miles.
Explanation:
She started from the same point and after the trip, she ended it on the same point in Philadelphia therefore the displacement is expected to be zero.
The distance she traveled would be 2 into 300 miles as she traveled to her sister and traveled back from there so
Distance = 2*300
= 600 miles.
Thus, the correct answer would be - 0 and 600 miles.
Explain how you found out that Lucy has ADA-SCID
Answer:
The first part of finding out Lucy having ADA-SCID was when I realized there were no HIV proteins in her blood, getting rid of the possibility of her having HIV. Then, I realized she had a high number of Deoxyadenosine in her blood. This proves she has ADA-SCID because when the ADA doesn't work you find excess amounts of Deoxyadenosine in the blood.
Explanation:
Answer:
The first part in finding out Lucy has ADA-SCID was when I realized there was no HIV proteins in her blood, which got rid of the possibility of her having HIV. Then, I saw that she had a high number of Deoxyadenosine in her blood. This proves to me that she has ADA-SCID because when the ADA doesn't work you find excess amounts of Deoxyadenosine in the blood. This is the answer.
Explanation:
What is the world's smallest country?
Answer:
Vatican City is the smallest country in the world, with an area of 526,235.6 square yards.
Explanation:
Summarize for prophase?
Answer:
Prophase is the first phase of mitosis, the process that separates the duplicated genetic material carried in the nucleus of a parent cell into two identical daughter cells. During prophase, the complex of DNA and proteins contained in the nucleus, known as chromatin, condenses.
How do animals obtain energy?
O A. By eating other organisms
B. By shedding hair or fur
C. By maintaining homeostasis
O D. By changing temperature
Answer:
By eating other organisms
Answer: A. By eating other organisms
Explanation:
Hope this helps <3
HELP PLEASE HURRY
PLEASE TELL ME THE SITE YOU GOT THE FACTS FROM
List 7 facts about a meteoroid
Answer:
https://solarsystem.nasa.gov/asteroids-comets-and-meteors/meteors-and-meteorites/overview/?page=0&per_page=40&order=id+asc&search=&condition_1=meteor_shower%3Abody_type
Explanation:
Answer:A meteoroid is a chunk of space rock. If it burns up while entering the Earth’s atmosphere it’s called a meteor and if a piece lands, it’s called a meteorite.
Millions of meteoroids travel through the Earth’s atmosphere every day, but most are small and burned up quickly. Very few reach the ground.
When a meteoroid hits the atmosphere of the Earth, they can be travelling as fast as 130,000 mph (209,215 km).
The blast caused by the shockwaves of the Chelyabinsk meteor in Russia was picked up by infrasound sensors on the other side of the world. Below is a video of that meteor.
The buying and selling of meteorite pieces in South Africa is illegal.
A meteorite that is seen or detected as it lands are called “falls”, with those that are discovered later being referred to as “finds”.
Meteoroids more than 10 metres in diameter are classified as asteroids.
Of the 500 estimated meteorites that reach the ground every year, only five or six are recovered for scientists to study.
Explanation HEHE
Which owl was most fit?
O Owl 4 laid 4 eggs, of which all 4 hatched and all 4 young successfully left the nest.
Owl 3 laid 12 eggs, of which 10 hatched and were all eaten by a squirrel.
O Owl 1 laid 8 eggs, of which 6 hatched and 5 young successfully left the nest.
O Owl 2 laid 9 eggs, of which 8 hatched and 3 young successfully left the nest.
Answer:
Owl 1 laid 8 eggs, of which 6 hatched and 5 young successfully left the nest.
Explanation:
How do igneous rocks provide evidence about the Earth?
Answer:
pls mark brainlest The chemical composition of an igneous rock tells us about the origin of the magma, beginning with which type of rock melted within the earth to form the magma in the first place, and how deep in the earth the melting occurred. Once magma has formed inside the earth, its composition may be modified.
A farmer is trying to increase the diversity of corn kernel color in his crops. The trait for corn color is controlled by two alleles. Yellow corn (B) is dominant over white corn (b). Which combination of corn should he cross to get the most variety of genotypes for corn color in the next generation?
A. BB x BB
B. Bb x bb
C. Bb x Bb
D. BB x bb
Answer:
C
Explanation:
If the farmer crosses Bb x Bb, then the progeny will have BB, Bb and bb genotypes attributing to increased diersity of corn kernel color in his crops.
What is a genotype?The total complement of an organism's hereditary material is referred to as its genotype. The alleles or variants that an individual carries in a specific gene or genetic region are also referred to as their genotype. Genotype is another term for them.
There are three distinct categories of genotypes: heterozygous recessive (pp), heterozygous dominant (PP), and homozygous recessive (pp). Both the dominant homozygous genotype and the dominant heterozygous genotype exhibit the same characteristics.
Therefore, if the farmer crosses Bb with Bb, the offspring will have BB, Bb, and bb genotypes, which will contribute to an enhanced diversity of corn kernel color in the farmer's harvests.
Learn more about genotypes, here:
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Eutrophication both hurts and helps
aquatic environments.
true
false
Answer:
False. Eutrophication is an enrichment of water by nutrient salts that causes structural changes to the ecosystem such as: increased production of algae and aquatic plants, depletion of fish species, general deterioration of water quality and other effects that reduce and preclude use”.
1. What percentage of puppies would have the same genotype as the
parents, Ww?
Answer:
50%
Explanation:
This question involves a single gene with two alleles W and w in puppies. According to the question, the genotype of the parent organisms are Ww. In a cross between the two parents i.e. Ww × Ww, the following gametes will be produced by each parent: W and w.
Using these gametes in a punnet square (see attached image), the following genotype of offsprings will be produced: WW, Ww, Ww, ww. Hence, based on this question, the percentage of puppies that would have the same genotype as the parents, Ww are 1/2 × 100% = 50%.
Kayla is examining different soil samples and making notes about how well each sample sticks together. She has to soil's that she has classified as dry, ones as wet and one cemented. Which soil property is she examining?
A. Density
B. Structure
C. Texture
D. Consistency
Answer: Consistency, i think
Explanation:
don't come at me if it's wrong please
write a passage that describes:
what the cell cycle is and the purpose of the cell cycle
What happens in each phase and stage of the cell cycle and mitosis.
There is no length requirement, but your passage must include ALL of the following terms.
1.
2. Pre-existing cells
3. Prokaryotic cells
4. Eukaryotic cells
5. Bacteria cells
6. Plant cells
7. Animal cells
8. G1 phase
9. S phase
10. G2 phase
11. M phase
12. Growth
13. Mitosis
14. DNA replication
15. Synthesis
16. Interphase
17. Chromosomes
18. Sister chromatids
19. Centromere
20. Spindle fibers
21. Cell division
22. Prophase
23. Metaphase
24. Anaphase
25. Telophase
26. Cell equator
27. Cytokinesis
28. Nucleus
29. Cleavage furrow
30. Cell plate
31. DNA
32. Genetic information
33. DNA replication
34. Cell cycle
35. Identical daughter cells
36. Parent cell
Answer:
Explanation:
36. Parent cell you know
How are we able to tell from the results of this blood type test that this is 0+
Answer:
there's no test so... The test to determine your blood group is called ABO typing. Your blood sample is mixed with antibodies against type A and B blood. Then, the sample is checked to see whether or not the blood cells stick together. If blood cells stick together, it means the blood reacted with one of the antibodies.
Explanation:
hope this helps have a good rest of your day :) ❤
