Answer:
a) cambrian
Explanation:
The first body fossils of trilobites appeared in the Early Cambrian Period, about 540 million years ago.
Answer:
A. Cambrian period
Hope this helps :)
so... um.... i need jus a lil bit of help wit dis
Answer:
commensalistic- you were in the womb
mutualistic-At work
parasitic-living with parents
Explanation:
1)When you were in the womb you took nutrients from your mother but your mom didn't benefit but she wasn't dying either.
2) You do a job, get payed so thats how you benefit. You help your employer by completing work and giving them profit also.
3) Your parents raised you,feed you,buy you clothes ans stuff, spend time at your school events,pay for your utilities while you live with them but you don't really give them much back.
Use any resource to define the following vocabulary terms from the unit:
Chemical change
product
chemical reaction
reactant
dissolve
solution
energy
temperature
heat
thermal energy
mixture
Physical change
lol
1. The term used for “living together” is...
A. ecology b. environmentarism C.Bymiosis
Answer:
You might mean Symbiosis
Explanation:
plssssss help Im giving almost all my points
Answer:
Eastern Africa consists largely of plateaus and has most of the highest. ... The Western Rift Valley curves along the western borders of Uganda and Tanzania. ... Apparently established in the 9th century, it is distinguished for its seawalls of coral
hope this was helpful
Explanation:
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Name three geological “phenomena” or changes to the earth’s crust that are caused by plate tectonics.
Answer:
volcanic eruptions, earthquakes, and tsunamis
Explanation:
How are protozoans classified into phyla?
Answer:
On the basis of light and electron microscopic morphology, the protozoa are currently classified into six phyla. Most species causing human disease are members of the phyla Sacromastigophora and Apicomplexa
Explanation:
Which zone contains the headwaters of a stream system?
A. transition zone.
B. source zone.
C. floodplain zone.
D. delta zone.
E. littoral zone.
Answer:
A. transition zone
Explanation:
How do natural resource impact international relationships?
Answer:
Pretty much natural resource
Explanation:
Which two processes are most likely to contribute to global climate change?
Answer choices
A) Agriculture and mining
B ) Deforestation and fossil fuel burning
C ) Fossil fuel burning and agriculture
D ) Sedimentation and deforestation
The forearm of all of these
animals are considered
homologous structures. Why?
A. They develop from the same embryonic
tissue.
Human
Bird
B. They are the most important sets of
bones.
C. They have no current use.
D. These animals do not share a common
ancestor.
Answer: its A
Explanation:
They have no current use, because they were passed down from a common ancestor, homologous structures are those that are comparable in related organisms, hence option C is correct.
What is homologous structures?The descendants of these structures may or may not carry out the same purpose. Tetrapods' four limbs are an illustration of homologous features. All four limbs are present in birds, bats, mice, and crocodiles.
Bony fish such as sharks do not. Tetrapods evolved four limbs, and their descendants have carried on this trait.
As a result, the presence of four limbs is a homology. The upper arm of both humans and cats consists of just one bone, which we refer to as the humerus, and two forearm bones, the radius on the more medial side and the ulna on the more lateral side.
Therefore, option C is correct.
Learn more about homologous structures, here:
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PLEASE HELP, ANSWER ONLY IF YOU KNOW THE ANSWER, WILL MARK BRAINLEST.
What is some biological events
Answer:
Physicals changes, the way your skin wrinkles. Basically all the stuff you body goes through over your life time
Explanation:
IF YOUR GOOD AT SCIENCE PLS HELP ME OUT ILL Mark Brainliest:)
Answer:
arizona and california
It is California & Arizona!
ArizonaArizona gets huge amount of sunlight. That's why Arizona is burning in the summer. During the summertime in Arizona, It can reach as hot as 120°F! It also ranked as No. 1 in the All-Time Record Maximum Temperature by State! In Lake Havasu City, it reached 128 °F! Arizona is also known for having heatwaves. About 76 people died during one of Arizona's heatwaves in 2014.
CaliforniaCalifornia is another state that gets a lot of sunlight. Since California gets high amounts of sunlight, most hurricanes form by California and Arizona. In September 6, 2020 California had recent a heatwave that broke out in several locations in Southern California. It reached 121 °F (49 °C), and a woman died while hiking.
That's all! Thanks for asking this question!As TSH levels fall, the thyroid gland slows down thyroxin secretion.
True or False
Answer:
I think s its True
Explanation:
What do low levels mean? Low TSH levels indicate hyperthyroidism. This is also known as an overactive thyroid. If the thyroid gland is secreting levels of hormones that are too high, the pituitary gland produces less TSH
hope it helps
Look again at the enzyme diagram and it’s target molecule. How might a mutation affect the interaction between the enzyme and its target and the function of the enzyme in the organism?
By viewing the enzyme diagram and its target molecule, we can infer that a mutation might affect the interaction between the enzyme and target because it may change the shape of the enzyme and consequently inhibit its function.
What is a genetic mutation?A genetic mutation can be defined as a permanent alteration in the DNA sequence that makes up a gene, which affects the production of a protein and may have a wide range of effects on the function of a cell.
Therefore, with this data, we can see that a genetic mutation may modify the protein and thus affect the reaction.
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How is the sex of the offspring determined?
solely by which chromosome from the male, the X or the Y, combines with the female chromosome
solely by the "Y" chromosome
independent of the female chromosome
by the combination of the sex chromosomes of the male and female
Answer:
i think its the second one
Answer:
By which chromosome from the male, the X or the Y, combines with the female chromosome
Explanation:
Can someone explain how a cladogram works?
Answer:
it shows ancestral relatedness the traits show where they evolved on the tree with things below that having that trait the hagfish is the outgroup
rabbits and gorillas have fur
Explanation:
Answer:
A cladogram is the diagrammatic result of an analysis, which groups taxa on the basis of synapomorphies alone. There are many other phylogenetic algorithms that treat data somewhat differently, and result in phylogenetic trees that look like cladograms but are not cladograms.
Explanation:
What natural system purifies water?
A-carbon filtration
B-sewage treatment plant
C-particles precipitate out in oceans and lakes
D- the water cycle
Answer:
The water cycle
Explanation:
When water is evaporated whatever dirt or salt particles were in it do not get evaporated with it. So when it falls back to earth (as rain, snow, hail, ect.) it is technically pure, until something is added to it.
Answer:
The water cycle just had it on a quiz
Explanation:
Tattoos and piercings are not acquired characters. True or false?
Answer:
False
Explanation:
It's false because you weren't or couldn't have been born with a tattoo, so you acquired the trait instead of inherited it.
Answer:
True
Explanation:
You are not born with them so they are not aquired.
Help ....plssssssssssssssssss
Answer: is crust
Explanation:
hope this helps :)
Identify the reactant(s) in the chemical reaction, CO2 + H2O → H2CO3.
a
CO2, H2O, and H2CO3
b
CO2 and H2O
c
CO2
d
H2CO3
Answer:
b. CO2 and H2O
Explanation:
Reactants are substances that undergo change during a reaction. They are on the left side of the arrow and turn into products (aka the right side).
Which is a pollutant associated with high-tech gadgets in landfills?
A. Nitrogen
B. Carbon Dioxide
C. Iron
D. Mercury
Answer:
The answer is D.) Mercury
Answer:
Lead can also be an answer.
Explanation:
faith
One species of fish, Amphiprion percula, lives unharmed among the stinging tentacles of sea anemones, where they are protected
from predators. This is an example of
A)
mutualism.
B)
competition
C)
parasitism
D)
predation
Answer: A. mutualism
Explanation:
Two Changes that happen to your gas exchange system when you exercise regularly
Answer:
Hi hope this helps:
During exercise there's an increase in physical activity and muscle cells respire more
The heart rate increases during exercise.
The rate and depth of breathing increases - this makes sure that more oxygen is absorbed into the blood, and more carbon dioxide is removed from it.
How did tiktaalik provide evidence that amphibians evolved from fish?
Answer:
Tiktaalik fossils reveal how fish evolved into four-legged land animals. The report shows that the animal had a large, robust pelvic girdle, a prominent hip joint, and long hind fins. The powerful fins could have propelled the beast in the water, but also helped it walk on riverbeds, or scramble around on mudflats
What kind of adaption would you be most likely to see in these little moles that live underground? the ones are A. Wings B. Fins C. An adaption to keep dirt out of their eyes and D. None of the above please help
It is d none of the above..
plants are natures___________ conditioners
Answer:
air conditioners
Explanation:
Oxygen is always released from higher plants during photosynthesis
Which of the following is the monomer of a protein? *
sugar
amino acid
fatty acid
nucleotide
There is much controversy surrounding stem cells and the use of them. Do you think the use of stem cells is ethical? Why or why not?
Answer:
Explanation:
Ethical issues Historically, the use of stem cells in medical research has been controversial. This is because when the therapeutic use of stem cells first came to the public’s attention in the late 1990s, scientists were deriving human stem cells from embryos.
Two plates moving towards each other are called convergent plates, like those shown below.
Which structures are likely to form at a convergent plate boundary?
A) rift valley
B) wave erosion
C) mountains
D) river canyons
Loss of voluntary control over urination is called
O dialysis
O incontinence
O neurogenic bladder
O urgency
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