Answer:
b
Explanation:
B
Answer:
B) hot with lots of volcanoes
Explanation:
The Earth was very hot during the Hadean and did not yet have an oxygen rich atmosphere.
which igneous rock could physically weather to beach sand that contains the minerals pyroxene, plagioclase, feldspar, and olivine?
Answer:
gabbro
Explanation:
just took the test!
An igneous rock which could physically weather to beach sand that contains the minerals pyroxene, plagioclase, feldspar, and olivine is: Gabbro.
Weathering refers to both the chemical and physical breakdown of a rock into smaller fragments (pieces) referred to as sediments.
Generally, there are two (2) main types of weathering and these are;
1. Chemical weathering.
2. Physical weathering.
Gabbro is a coarse-grained (phaneritic), mafic intrusive type of igneous rock which physically weather to beach sand containing the following sediments or minerals:
Pyroxene.Plagioclase.Feldspar.Olivine.Read more: https://brainly.com/question/21975453
how are bacterias different from animals ?
Answer:
Bacteria are neither animals nor plants.... Because bacteria are prokaryotic, they do not have a nucleus and no membrane-bound organelles. In contrast, plants and animals are made up of eukaryotic cells, which means they have a nucleus and membrane-bound organelles like mitochondria or golgi apparatus.
Explanation:
Answer:
Bacterias have simple cells and are typically single cell organisms where as animals which have more complex cells are are multi celled organisms UwU
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Explanation:
Which of these protects water that is
between the United States and Canada?
A. Endangered Species Act
B. Superfund Act
C. Convention on the Protection/Use of Transboundary
Watercourses
D. London Convention on the Prevention of Marine
Pollution
Answer:
C. Convention on the Protection/Use of Transboundary
Watercourses
Explanation:
Which two characteristics do all forces have?
O motion and size
O size and direction
O direction and speed
O balance and direction
Answer:
direction and speed are two characteristics of forces
Which of the following is the best example of a population?
Answer:
B) A school of sunfish.
In biology, a population is a number of all the organisms of the same group or species who live in a particular geographical area and are capable of interbreeding
Answer:B
Explanation: JUST TOOK THE TEST TRUST ME!
Two species of three-spined stickleback fish have been found together in five different lakes. The larger, bottom-dwelling species feeds on large prey close to shore. A surface-dwelling species feeds on small plankton in open water. DNA analysis shows that the two species in each lake are more closely related to each other than they are to any of the other species in the lake. Which prezygotic mechanism most likely allowed divergence of an ancestral species into these present-day species
Answer:
The answer is "Sympatric speciation due to disruptive selection"
Explanation:
Disruptive selection is a certain type of natural choice, that aggressively favors all ends of the spectrum in a moderate community. Disruptive selection is often deduced by a phyletic prepared to change to contribute to speciation. These two species happened due to various habitats associated with extreme speciation due to various confusing choices.
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3) Select the reasons why global warming might still occur even if greenhouse-gas emissions drastically decrease.
Answer:
If the emission of greenhouse gases were stopped, global warming would still happen due to the gases that are already in the atmosphere and the constant deforestation.
Explanation:
Greenhouse gases are the biggest creators of global warming. This is because these gases cause holes in the ozone layer, which protects the planet from the sun's rays. These holes cause the sun's rays to reach the earth's surface with greater intensity, promoting global warming.
Trees are able to absorb these gases, decreasing their concentration in the atmosphere and preventing them from degrading the ozone layer. However, the constant deforestation has reduced the number of plants and the remaining amount on the planet cannot cope with the constant emission of these gases. In this case, even if the emissions of greenhouse gases were ended, the amount of these gases in the atmosphere would still be very large. Plants were slow to absorb all these gases, which would not prevent global warming from happening.
7.
How is the rate of transpiration affected by decreasing temperature and by decreasing light
intensity?
decreasing
temperature
decreasing
light intensity
A
slower
slower
B
slower
faster
С
faster
slower
D
faster
faster
Answer:
B
slower
faster
Explanation:
Do you think the organisms in image 3 support the theory that modern organisms evolved from ancestral organisms? Explain your answer.
Answer:
occurs when these heritable differences become more common or rare in a population, either non-randomly through natural selection or randomly through genetic drift.
Answer:Yes, the organisms in image 3 support the theory that modern organisms developed from ancestral organisms. The two organisms share similar body structures and traits. So, there will be similarities in their genes, and they’ll share an evolutionary connection.
Explanation: Edmentum answer
Why is the tower much taller than the surrounding landscape
Answer:
Because a tower is made to look out at the surrounding area, it wouldn't be much use if it was a short tower.
Explanation:
That'll be one Brainliest
based on the reading above describe two diff between mysteceti and odonticeti whales one diff should be in anatomy and the other in feeding behavior. plz help me guys give a short answer
Answer:
both are different in feeding behaviour and blowholes.
Explanation:
The main difference between Mysteceti and odonticeti whales is the presence of feeding behaviour. Mysteceti whales also known as baleen whales which have baleen plates that capture prey from sea water while on the other hand, odonticeti whales have teeth which helps these whales to hunt aquatic animals. Baleen whales have baleen plates, or sheets, which sieve prey or food from seawater whereas toothed whales have teeth which helps them to actively hunt fish, squid and other sea creatures. The number of blowholes also different in both whales, Odontoceti whale has only 1 blowhole, but the Mysticeti has two blowholes in its body.
Organisms that eat other organisms are called __________.
Answer:
Heterotrophs Or Consumers
Answer:
heterotrophs
Explanation:
Chandra X-ray observatory has reported that they have found a new star near our solar system. The Chandra X-ray telescope detects x-rays in space. What does the use of the x-ray telescope review about the newly found star? ( PLS EXPLAIN Y THE ANSWER IS CORRECT)
a. The star produces electromagnetic waves with shorter wavelengths than visible light.
b. The star produces electromagnetic waves with lower frequencies than visible light.
c. The star produces pictures in addition to electromagnetic waves.
d. The star produces vibrating electrons
Answer:
It’s possibly b, or a but I am definitelyonly 49% sure
Explanation:
Hope this helped you Arianna!
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Answer: research it? i dont know
Explanation:
Please anyone help please please help ASAP ASAP please
Answer:
radiant to electrical
Explanation:
the broad portion of the leaf that carries out photosynthesis
Answer:
It is called the Blade
Explanation:
The blade is the broad part of a leaf that holds the green food making cells.
How do you think molecules of food rearrange when they react with oxygen in the cells of your body?
Answer:
In cellular respiration, complex molecules containing carbon react with oxygen to produce carbon dioxide and other materials. Within individual organisms, food moves through a series of chemical reactions in which it is broken down and rearranged to form new molecules to support growth or to release energy.
Explanation:
The glucose and oxygen atoms are rearranged into carbon dioxide and water molecules during aerobic respiration. Being an exothermic chemical reaction, this process releases energy as it goes along.
What is aerobic respiration?A chemical reaction that converts carbohydrates into energy using oxygen (sugars). also known as oxidative metabolism, aerobic metabolism, and cell respiration.
During aerobic cellular respiration, glucose and oxygen combine to create ATP, which the cell can utilise.
As byproducts, carbon dioxide and water are produced. The general equation for aerobic cellular respiration is: ATP is produced when glucose and oxygen combine in cellular respiration.
During aerobic respiration, glucose and oxygen atoms are rearranged into carbon dioxide and water molecules. As it proceeds, this process releases energy since it is an exothermic chemical reaction.
Thus, molecules of food rearrange when they react with oxygen in the cells of your body.
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10. Why are most species that have ever lived on Earth extinct?
Explanation:
At least 571 species have been lost since 1750, but likely many more. The main cause of the extinctions is the destruction of natural habitats by human activities, such as cutting down forests and converting land into fields for farming.
Answer:
Some animals have gone extinct due to over hunting on them for skin, while some have died of because they weren't able to adapt to their environment because it change over time, causing them to go extinct
Explanation:
What is DNA replication? When and why does it occur?
Answer:
DNA replication is the biological process of producing two identical replicas of DNA from one orginal DNA molecule.
DNA replication occurs when the DNA strands unzip and the orginal strands of DNA serve as a template for new nucleotides to join and form a new strand. In needs to occur because existing cells divide to produce new cells.
The movement of tectonic plates in two differs ot locations is shown below:
Location A
Location B
Which statement is most likely true?
• Subduction occurs in both locations.
Seafloor spreading occurs in both locations.
• The magnetic orientation of rocks may change in Location A and subduction occurs in Location
B.
•
Subduction occurs in Location A and the magnetic orientation of rocks may change in Location B.
Answer:
The magnetic orientation of rocks may change in Location A and subduction occurs in Location B
Explanation:
A gene has 2 alleles, R & B, List the possible genotypes? I also need help with questions 5, 6, 7 and 8 please help! Pls look at the picture! I will mark whoever sounds best the brain! Ty!
Answer:
5.) The possible genotypes should be: RR RB BB ( if the could for the same proteins)
6.) Frequency of R: 0.5
7.)Frequency of R: 0.5
8.)Frequency of R: 0.375
Explanation:
5.) If R and B code for the different forms of the same protein then they are only a few possible out comes
6.) First calculate the total alleles in population
allele R= 40
Allele B=40
total allele = R+B= 40+40
=80
Now to find allele R frequency is:
(Total R alleles) / (Total allele in pop)
40/80=
0.5
7.)Calculate the total alleles
Alleles from for R
RR= 10
R=10x 2= 20
Multiply the value by 2 because there are 2 R alleles present in
RB=20
R=20
Number doesn't change there is only 1 R allele
Total R=20+20
=40
Alleles For B
BB=10
B=10×2
=20
Same thing here, two B alleles together so multiple by 2
RB=20
B=20
Total B= 20+20
=40
Total alleles in pop add
40+40
=80
Frequency of R
Total of R/Total Alleles
=40/80
=0.5
8.)Repeat the same thing in 7 but use different numbers
RR=10
R=10x2
=20
RB=10
R=10
Total R= 20+10
=30
Which of the following conditions is least likely to have an effect on natural selection in a species of sheep that are geographically isolated on an island?
A. available niches
B. existing predators
C. chromosome number
D. available food resources
Answer:
A. available niches
Hope it helps!
Answer:
C.
Chromosome number
Explanation:
In a human karyotype, the 46 chromosomes of the human genome are arranged into 23 pairs. Encyclopædia Britannica, Inc. An organism with any multiple diploid numbers of chromosomes is said to be polyploid.
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The top ten most commonly eaten foods mostly include grains and other starchy plants.
True
False
Answer:
true
Explanation:
Carbohydrates can be divided into three main categories: sugar, fiber and starch.
Starches are the most commonly consumed type of carb, and an important source of energy for many people. Cereal grains and root vegetables are common sources.
how does independent assortem increase genetic diversy
Answer:
Genetic diversity is increased by independent assortment (genes are inherited independently of each other) and crossing over during meiosis. During meiosis, chromosomes (which are found in pairs) swap large portions of their molecules, causing genetic material to be mixed between them.
Explanation:
Your cells have a unique MHC (major histocompatibility complex). Directions for producing MHCs come from _________________.
A. the helper T-cells
B. the thymus
C. inherited DNA
D. the bone marrow
The directions for generating MHC comes from the option c. inherited DNA. hence, the option c is correct.
What is MHC?The full form is a major histocompatibility complex. It is the genes group that have the proteins code that should be founded on the cell surface which helped the immune system, that recorded in the foreign substance.
So at the time of directing, it produced MHC that came from inherited DNA.
hence, the option c is correct.
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Answer:
A - Muscle
B - Tendon
C - Cartilage
D- Ligament
E- Bone
Explanation:
The above are the parts of a musculoskeletal system.
The musculoskeletal system is actually known as an organ system which is made up of specialized tissues of the bones and skeletal muscles. The system consists of the bones of the body, muscles, ligaments, cartilage, tendons, joints and other connective tissues. These all work together in the musculoskeletal system to provide support for the body. They enable motion of the body and provide protection to vital organs in the body.
First, describe why an animal is considered a system. Then, explain why an animal is not considered a technological system. ▲
what is the difference between the substrate and product?
Answer:
The key difference between substrate and product is that substrate is the staring material of a chemical reaction whereas product is the compound obtained after the completion of the reaction. The terms substrate and product are used in spontaneous reactions and in reactions upon which an enzyme acts on as a catalyst.
Explanation:
Explanation:
substrate is a chemical reaction and product is compound obtained
Which conclusion can you draw from the information shown in the graph?
A. Carbon dioxide levels are currently much lower than normal.
B. Carbon dioxide levels are currently higher than they have ever
been.
C. Carbon dioxide levels in the past have been as high as they are
now.
D. Carbon dioxide levels are always about the same.
Answer:
The answer is B. Here is proof. Plz mark brainliest
Explanation: