I need to know it ASAP thanks
What are some examples of comparative embryology in evolution?
Answer:
Similarities in structure among distantly related species are analogous if they evolved independently in similar environments. They provide good evidence for natural selection. Examples of evidence from embryology which supports common ancestry include the tail and gill slits present in all early vertebrate embryos.
What substance influences the reaction but does not participate in the reaction
a catalyst, because it is a substance that speeds up the rate of a chemical reaction but is not consumed during the course of the reaction.
Answer:
i thinks its a catalyst
Explanation:
Which cell structures are seen in prokaryotic and eukaryotic cells?
nucleus
cell membrane
mitochondria
DNA
ribosomes
cytoplasm
Answer:
cell membrane
DNA
ribosomes
cytoplasm
Explanation: Took assignment on edge
Answer:
B,D,E,F
Explanation:
The number of individuals that an
area can support is limited by____
A. predation
B. resources
C. parasites
Coastal plains are also referred to as ____. a. marshes c. interior plains b. lowlands d. plateaus
The correct answer is B) lowlands.
Coastal plains are also referred to as lowlands.
This region of the United States is a flat land next to the sea. Oftentimes this region is divided from other parts by mountain chains. We are talking about the coastal plains along the Atlantic Ocean. This low relief region of the East Coast extends for 2,200 miles from the state of New York to the state of Florida.
Answer:
b. lowlands
Explanation:
Which community has the greater species diversity?
Select one:
Community Y, because the total number of individuals is greater
Community Y, because the community is richer
Community X, because the distribution of species is more even
Community X, because the community is richer
Answer:
Community X, because the distribution of species is more even
Explanation:
A student has to perform an experiment on the effect of heat on a particular chemical which can be seen in the form of a color change. Which
section of his lab report will include the color change in that chemical?
А. Title
B. Conclusions
C.Results
What happens when new data call current scientific explanations into
question?
A. Scientists repeat the experiments to prove that the new data are
unreliable.
B. Scientists repeat the experiments to verify results and reevaluate
scientific explanations.
C. Previous explanations are thrown out immediately.
D. Scientists ignore the new data because the findings are clearly
false.
Answer:
B. Scientists repeat the experiments to verify results and reevaluate
scientific explanations.
Explanation:
This is kind of process of elimination. Scientists don't move onto new ideas with out proof so C it out. They wouldn't just ignore new data so it's not D. Between A and B, B seems most likely because when scientists look into new data they wouldn't necessarily have the mindset of trying to prove that it is unreliable. They just want to confirm and learn.
I know this is late for an answer but I wanted to provide one anyway. :)
Which statements regarding hypotheses are true?
Check all that apply.
Answer:
Hypotheses are based on observations.
Hypotheses are formed from testable questions.
Hypotheses are tested with controlled experiments.
During mitosis, chromatin condenses into chromosomes, spindle fibers form from one end of the cell to the other, and centrioles organize the spindle fibers. Which stage of mitosis happens next?
Answer:
Metaphase
Explanation:
Mitosis is the cell division that involves the production of daughter cells that are genetically identical to the parent cell. Mitosis is undergone by every living cell and it includes four main stages: Prophase Metaphase, Anaphase, and Telophase.
The description in this question showcases the Prophase stage, which is the first stage of mitosis. The Prophase stage involves the condensation of Chromatin threads into Chromosomes. The mitotic spindle, which contains the microtubules that will separate sister chromatids begins to form. The next phase involves the aligning of chromosomes at the cell's equator, which occurs in the METAPHASE stage.
Answer:
Metaphase
Explanation:
fruit is absent in ?
a.Mango
b.rose
c. pine
d.sunflower
Answer: C: Pine
Explanation: Pine belong to the gymnosperms ( Naked seed plants) group, a group of plants with flower that has no ovary hence no fruit. The seeds are borne naked on scaly structures or leaves surface. Other examples in this group are Conifers, Cycads, Ginkgo e.t.c
An organism has two different possible traits, A and B. A graph of the population is shown right. Which of the following statements is true about Trait B? Check all that apply.
It decreased in frequency over time.
It became extinct.
It is carried on a recessive allele.
It decreased in frequency over time.
Trait B decreased in frequency over time. So, the correct option is A.
What is trait?A trait is an attribute or characteristic of an organism that is influenced by its genes, according to genetics. Behavioural and physical characteristics, including intelligence and friendliness, can be altered by a combination of hereditary and environmental variables.
A trait is a distinctive quality or attribute that can be acquired by environmental circumstances, genetic inheritance, or both. In biology, traits are observable and quantifiable qualities of an organism, including its physical characteristics, behaviour, and other traits. For instance, physical characteristics like eye colour, height, and hair texture can all be passed on through genetics.
Hence, the correct option is A.
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As in mitosis, in Meiosis the chromosomes move toward opposite poles of a cell in____.
Answer
The chromosones move toward opposite poles of a cell in Anaphase
DNA serves as a template for a new strand
What do prokaryotes have in common with eukaryotes?
A. They both have a Golgi apparatus.
B. They both have mitochondria.
C. They both have a nuclear membrane.
D. They both have a liquid cytoplasm.
Answer:
They both have a liquid cytoplasm.
Explanation:
A liquid cytoplasm is an essential part of a cell, in both prokaryotes and eukaryotes. It supports the internal components of the cell, and is the site of many vital cellular processes, such as glycolysis (the first part of cellular respiration).
The Golgi apparatus and the mitochondria are membrane-bound organelles that serve a specific purpose in eukaryotic cells. However, prokaryotic cells do not contain any membrane-bound organelles.
Prokaryotes do have a nucleus, like eukaryotes, but unlike in a eukaryotic cell, a prokaryotic nucleus is not surrounded by a nuclear membrane. Instead, it is just confined to a certain area of the cell, called a nucleoid.
Prokaryotes and eukaryotes both have a nuclear membrane. Option C
What is the commonality?
Prokaryotes and eukaryotes are two large categories of cells with notable variations in their organization and structure. They do, however, have some things in common.
The existence of a nuclear membrane or nuclear envelope is one of the similarities between prokaryotes (such as bacteria) and eukaryotes (such as plants, animals, fungi, and protists). The cell's genetic material, which can be either DNA or RNA, is encased in the nuclear membrane. It divides the cellular components into the nucleus and the remainder.
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Most of the costs associated with using renewable resources are due to _______.
a.
overuse of resources
b.
atmospheric pollution
c.
lack of availability
d.
global warming
Please select the best answer from the choices provided
A
B
C
D
Answer:
A
Explanation:
When we overuse resources, even when the are renewable, it can cause damadge to them that can't be repaires. Like killing too many trees in a forest.
Answer:
A
Explanation:
Jane has a beaker containing a clear solution. She adds a liquid pH indicator to the clear solution and observes that the solution changes to bright blue. The clear solution in the beaker must be a(an)
Answer: a (weak) acid
Explanation: the solutions are mostly neutral but the pH shown by the indicator as a bright blue means it is slightly acidic meaning the pH is between 6 and 7.6
As the solution turns bright blue on addition of indicator, the solution in beaker must be a weak base.
What is a base?
According to the Arrhenius concept, base is defined as a substance which yields hydroxyl ions on dissociation.These ions react with the hydrogen ions of acids to produce salt in an acid-base reaction.
Bases have a pH higher than seven as they yield hydroxyl ions on dissociation.They are soapy in touch and have a bitter taste.According to the Lowry-Bronsted concept, base is defined as a substance which accepts protons .Base react violently with acids to produce salts .Aqueous solutions of bases can be used to conduct electricity .They can also be used as indicators in acid-base titrations.
They are used in the manufacture of soaps,paper, bleaching powder.Calcium hydroxide ,a base is used to clean sulfur dioxide gas while magnesium hydroxide can be used as an antacid to cure acidity.
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Multiple organs which are engaged in a specific process form a(n) ???
Answer: organ system
Explanation:
For example the stomach and intestines that work together to digest food would be a digestive system. so depends on the organs that are working together.
QUESTION 1
At what type of plate boundary do lithospheric plates slide against each other horizontally?
divergent
transform
convergent
3 points
QUESTION 2
Where do most transform faults occur?
interior of continents
at oceanic ridges
in the ocean near continental boundaries
3 points
QUESTION 3
The San Andreas Fault in California is an example of a transform fault that has developed where the Pacific Plate moves past the North American Plate.
True
False
2 points
QUESTION 4
The lithosphere is relatively cold along a transform fault, making brittle fracture of rock materials common.
True
False
2 points
QUESTION 5
Earthquakes that take place along transform faults release huge amounts of energy.
True
False
2 points
QUESTION 6
Most volcanism along transform faults originates from
melting of mantle as it rises to fill pull-apart basins
subduction of oceanic plates under continental plates
both a and b
3 points
QUESTION 7
A "leaky" transform system is one that has
active sedimentation
metamorphic activity
volcanic activity
3 points
QUESTION 8
Transform faults can offset spreading centers in oceanic crust by several kilometers in length.
True
False
2 points
QUESTION 9
At the ocean floor transform plate boundaries, which of the following can cause mineral recrystallization of basalt?
brittle fracture of rocks
upwelling magma
high heat and ductile deformation
3 points
QUESTION 10
Which of the following famous transform fault systems produces large earthquakes in Canada?
North Anatolian
Alpine
Queen Charlotte
Answer:
1.transform
2.at oceanic ridges
3.true
The products of photosynthesis are
carbon dioxide.
glucose.
oxygen.
water.
DONE
Answer:
Oxygen is definitely one of them, but I'm not completely sure about any of the others. If I had to guess it may be glucose
Animal behavior is based on
Answer:
satisfying physiological needs
Explanation:
Why do we only have fossils of a fraction of the things that have existed on
Earth?
O A. Many environments destroy fossils over time.
OB. Only mammals can become fossilized.
O C. Fossils can only form during a warm period.
O D. Many organisms live in the ocean.
Select the correct answer. Neurofibromatosis, a genetic disease caused by mutation on the NF1 gene, follows an autosomal dominant pattern of inheritance. The diagram shows that the father carries two copies of the defective gene and the mother is unaffected. What percentage of offspring will have neurofibromatosis? a diagram showing a father who has the disease neurofibromatosis (alleles RR) and the mother is unaffected (alleles rr) A. 0% B. 25% C. 50% D. 100%
Answer: c 50% not sure though but its a try
Explanation:
Answer:
its D) 100%
Explanation:
I just got a 100% on the test
The minerals diamond and quartz can both be colorless. However, diamond will scratch quartz, while quartz will not scratch diamond. This is because each has a different _______.
A.
streak color
B.
hardness
C.
breakage pattern
D.
crystal structure
Answer:
B
Explanation:
Diamond is the highest on the hardness scale, while quartz is lower, only a diamond can scratch a diamond
Answer:
diamond is harder than quartz so that would be b hardness.
What is it called when vesicles are used to move substances into a cell?
A. Exocytosis
B. Passive transport
She
C. Endocytosis
D. Diffusion
Answer:
The answer is C. Endocytosis
Answer:
the answer is endocytosis
Explanation:
Which of the following trends show the relationship between deforestation and the Greenhouse Effect?
mt Teacher
ebook
Sickle Cell anemia is a disease caused by a recessive allele. What is the chance a child will have Sickle Cell if one
parent has it, and the other parent does not and is homozygous.
A. 75%
B. 33%
C. 0%
O
D. 100%
what is mental disorder ?
Answer:
Depression
Explanation:
Answer:
a brain related problem
a mental problem eg
madness
Which of these is a carbohydrate? A. C6H12O6 B. C6H6O12 C. C6H13O2N D. C3H7O2NS
Answer:
A. C6H12O6
Explanation:
edge 2021
