Trilobites were animals that lived in the ocean between
520 million and 540 million years ago. A trilobite fossil can
be used as an index fossil
I’m assuming that this isn’t a true or false question. If so it’s true.
Cellular respiration is similar in both plants and animals in what way?
Answer:
they both are eukaryotic cells and the both contain membrane-bound organelles
Allotropes of carbon.give examples
Answer:
They are three.
Explanation:
i) Graphite
ii)Diamond
iii)Fullerenes
A freight train weighing 12,000 tons is traveling 65km/hr. How far will it travel in 18 hours?
Answer:
1170km
65km per hour for 18 hours is just 65*18
the 12k tons bit is just there as a distractor
Explanation:
Capturing energy is critical to
every environment because
without it producers are unable to
A. absorb water
B. make their own food
C. reproduce
D. recycle nutrients
Answer:
C. reproduce
Explanation:
11. Why is the mantle of the Earth described as a semi-solid?
A) The mantle is composed of some solid pockets and some liquid pockets.
B) The mantle is solid toward the crust and liquid toward the outer core.
C) The mantle is liquid during warmer months and solid during colder months.
D) The mantle is so hot that it allows the rocky material to flow gradually.
Answer:
D) The mantle is so hot that it allows the rocky material to flow gradually.
Explanation:
Accelerate 2022
The mantle is so hot that it allows the rocky material to flow gradually. The correct option is D.
What are the layers of Earth?The crust, mantle, outer core, and inner core are the four principal parts that make up the earth's structure.
Each layer has a distinct chemical make-up, physical state, and potential to affect life on the surface of the Earth.
The crust, mantle, and core are the three layers that make up the earth. This stratum of the earth lies on the surface and is composed primarily of granite and basalt solid rock.
Oceanic and continental crust are the two different types. The majority of the oceanic crust is made of basalt and is denser and thinner.
The Earth's mantle is regarded as being semi-solid. Because the mantle is so heated, the rocky material can flow gently.
Thus, the correct option is D.
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What would likely have happened to Earth if no icy debris had arrived?
OA.
It would still have oceans but no atmospheric water.
B.
It would still have atmospheric water but no oceans.
Oc.
It would have no oceans or atmospheric water.
D.
It would have traces of water beneath its surface.
OE.
It would have released water in volcanic outgassing.
Answer:
The answer is E. It would have released water in volcanic outgassing.
Identical twins have ____________ but ______________.
A. Different DNA, come from the same sperm and egg
B. Identical environmental variation, different DNA
C. Identical DNA, come from different sperm and eggs
D. Identical DNA, different environmental variation
Answer:
D
Explanation:
Identical twins have identical DNA, but different environmental variations.
What are identical twins?
Identical twins are twins that are born from a single sperm and egg. They contain identical DNA codes. They are monozygotic twins, and they are 100% identical to each other.
Thus, the correct option is D. Identical DNA, different environmental variation.
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What kind of cells are formed during Meiosis?
nerve cells
Option 4
body/somatic cells
sex cells
animal cells
Answer:
Sex cells.
Explanation:
Meiosis is a type of cell division that reduces the number of chromosomes in the parent cell by half and produces four gamete cells. This process is required to produce egg and sperm cells for sexual reproduction.
I would appreciate brainliest but if not that's ok!
the flow of energy into and out of a system is called
Answer:
When energy flows out of a system, it must all flow into the surroundings.
When energy flows out of a system, ΔEsystem is negative.
When energy flows into the surroundings, ΔEsurroundings is positive.
Therefore,
─ ΔEsystem= ΔEsurroundings
Explain how cellular processes must be altered in stomach cancer cells compared with normal stomach cells to result in the different levels of SIRT3 expression observed.?
Answer:
SIRT3 is a tumor suppressor gene that controls essential cellular processes including apoptosis, cell proliferation, survival and anoikis resistance
Explanation:
The Sirtuin-3 (SIRT3) gene encodes for a histone deacetylase enzyme involved in the epigenetic regulation of many essential genes, thereby controlling their expression levels. SIRT3 has a proapoptotic function that initiates apoptotic events in cancer cells. Moreover, SIRT3 also modulates cell proliferation and survival in both normal and tumorigenic cells by controlling the expression of genes that maintain Reactive oxygen species (ROS) at non-toxic levels. Finally, SIRT3 also mediates anoikis resistance (i.e., the resistance to detachment-induced cell death), thereby inhibiting tumorigenesis in cancer cells. It is for all these reasons that it has been proposed that SIRT3 represents a potential drug target for cancer therapy.
Identify the following particles as being charged or uncharged/neutral. If charged, indicate whether they are charged positively or negatively. (n = neutron, p = proton, e = electron)
*particle C
proton +20
electron -18
urgent ^^
Answer:
Particle A is negatively charged.
Particle B is neutral.
Particle C is positively charged.
Explanation:
Particle A is negatively charged because the number of electrons is more than number of protons so the particle gain negative charge. Particle A is neutral due to same number of proton and electron which cancels the effect of one another and become neutral whereas the Particle B is positively charged due presence of more number of protons as compared to number of electrons so the particle gain positive charge.
if a plant has three leaves in a cluster, you should avoid it because? it isn’t edible. it attracts insects. it causes painful, itchy rashes. it produces poison berries.
Answer:
Your answer would be: it causes painful, itchy rashes
Explanation:
Poison ivy, a common plant, has leaves that always appear in bunches of three leaflets. Poison ivy has an oily resin called urushiol that is in its stem, leaves and roots. When touched, it causes an allergic reaction that can cause redness, itching, swelling, blisters, and other nasty symptoms.
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Which statement best describes the similarities between insects and animals? (2 points)
a
Insects and animals are all born in a live birth from the mother.
b
The infants of all insects and animals look similar to their parents.
c
The life cycles of insects and animals all start from a fertilized egg.
d
Insects and animals develop an exoskeleton as they grow, which protects them.
Question 18 (2 points)
(08.03 MC)
During their life cycle, a bee goes through complete metamorphosis while a grasshopper goes through incomplete metamorphosis. What is the main difference between the life cycles of a bee and a grasshopper? (2 points)
a
The grasshopper forms a cocoon, while the bee forms a chrysalis.
b
A grasshopper starts its life as a fertilized egg, while the bee doesn't.
c
A bee goes through three stages, while a grasshopper goes through four stages.
d
A bee goes through a pupa stage, while the grasshopper goes through a nymph stage.
Question 19 (2 points)
(08.03 MC)
Samantha recorded observations on the similarities between the life cycle of an eagle and the life cycle of a moth that undergoes complete metamorphosis. Which observation is Samantha wrong about? (2 points)
A moth and an eagle both start their life cycle as a fertilized egg.
A moth and an eagle both hatch from an egg outside of their mother.
A moth and an eagle both undergo complete metamorphosis with significant change during development.
a
I
b
I and II
c
II and III
d
III
Question 20 (2 points)
(08.03 HC)
A new insect is discovered, and you want to know whether the insect goes through complete or incomplete metamorphosis. The insect lays eggs, and the eggs develop into an insect that has colorful wings and long thin legs. What observations would you use to prove that the insect goes through complete metamorphosis? (2 points)
a
Observe at what stage the bugs are able to reproduce. If they reproduce quickly, they go through incomplete metamorphosis.
b
Observe how long it takes the insect to develop. The insect that goes through incomplete metamorphosis will develop quicker.
c
Observe how the insect changes as it develops. If the insect develops a cocoon, it is likely going through complete metamorphosis.
d
Observe what the insect eats over time. If it eats other bugs, it likely goes through complete metamorphosis please answer all I give brainlest
Answer:
1. c . The life cycles of insects and animals all start from a fertilized egg.
2. d . A bee goes through a pupa stage, while the grasshopper goes through a nymph stage.
3. b . I and II
Explanation:
The egg fertilization is very important for the emergence of almost all organisms. If the egg is fertilized then it will change into an organism otherwise no organism is produced from that unfertilized egg. The bees has four distinct life stages i.e. the egg, larva, pupa and adult whereas grasshopper has three stages i.e. egg, nymph, and adult. A moth and an eagle both start their life cycle as a fertilized egg and moth and an eagle both hatch from an egg which is laid by the mother outside of their body..
Answer:
It is 1 and 2 ethier one of those hope you get it right! (:
Which makes viral infections difficult to defeat?
Answer:
needles used and scars
Explanation:
Answer:
Viruses live outside of cells
Explanation:
URGENT PLZ ANSWER!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
Which of the following qualify as acquired traits? [SELECT ALL THAT APPLY]
A) Eye color
B) Being muscular
C) Wearing glasses
D) Pierced ears
E) Eye color
F) Being a good public speaker
G) Left-handedness
Answer:
option b c f and g must bhe acquired traits
Analyze the given diagram of the carbon cycle below. An image of carbon cycle is shown. The sun, a cloud, two trees, one on the left and the other on the right, an animal, lake, and a factory are shown in the image. An arrow is shown from the sun towards the left tree marked A. The sun is marked B. There is an arrow from the air above the clouds, marked C, towards the left tree. An arrow from a location close to the ground marked D points towards Dead Organisms, which is a label under the animal. An arrow marked E points from the right tree straight up to the clouds. An arrow marked F points from the animal straight up to the clouds. An arrow marked G points from the factory towards the air above the clouds, C. There is an arrow pointing from the air to the lake labeled Carbonates in Water, an arrow pointing down from dead organisms to Fossils and Fossil Fuels, and an arrow from Fossils to the factory. Part 1: Which compound does C represent? Part 2: Name a process that could release this compound into the air. Part 3: Explain how the elements that form it are conserved during the carbon cycle. Use complete sentences to explain your answer. Justify how this compound was created from a recycling of carbon in the carbon cycle. Use complete sentences to explain your answer. (10 points)
Answer:
where is the image...please
2+2 okay this is obvious its 4 but how many people can answer that?
Answer:
LOL many people can
Answer:
2+2 is 5
Explanation:
because 2 and 2 is 4 but the + = a hidden 1 so it is actully 5
when the astronaut took this photo of earth, what moon phase would have been visible in view from earth?
27. What substance is a liquid at -200 °C?
carbon
phosphorus
xenon
arsenic
nitrogen
Answer:
its nitrogen..........
Explain whether a mutation in any cell of an organism can be passed on to offspring of the organism. Under what conditions is a
mutation passed on to the next generation?
es )
Type your answer below
Answer:
Mutations are only passed on to offspring when they occur in germ cell DNA, which are the cells that create sperm or ova. The other kind of cells, somatic cells, are the rest of the cells in the body, and mutations that occur in these cells do not get passed on to offspring.
Explanation:
how are carbohydrates digested
Explanation:
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Answer:
The mechanical and chemical digestion of carbohydrates begins in the mouth. Chewing, also known as mastication, crumbles the carbohydrate foods into smaller and smaller pieces. The salivary glands in the oral cavity secrete saliva that coats the food particles. Saliva contains the enzyme, salivary amylase. This enzyme breaks the bonds between the monomeric sugar units of disaccharides, oligosaccharides, and starches. The salivary amylase breaks down amylose and amylopectin into smaller chains of glucose, called dextrins and maltose. The increased concentration of maltose in the mouth that results from the mechanical and chemical breakdown of starches in whole grains is what enhances their sweetness. Only about five percent of starches are broken down in the mouth. (This is a good thing as more glucose in the mouth would lead to more tooth decay.) When carbohydrates reach the stomach no further chemical breakdown occurs because the amylase enzyme does not function in the acidic conditions of the stomach. But the mechanical breakdown is ongoing—the strong peristaltic contractions of the stomach mix the carbohydrates into the more uniform mixture of chyme.
The drawing shows a picture of a flower called a water lily that grows in the wetlands of Florida.
When pollen from a water lily combines with the egg of another water lily, it creates a seed. What is the name of this plant process?
fertilization
germination
seed dispersal
pollination
Answer: it’s fertilization
Explanation: Fertilization in flowering plants happens through a process called pollination. ... Fertilization occurs when one of the sperm cells fuses with the egg inside of an ovule. After fertilization occurs, each ovule develops into a seed. • Each seed contains a tiny, undeveloped plant called an embryo.
which of the following requires ATP
A. facilitated diffusion
B.Simple diffusion
C.Active transport
D.None of the above
Answer:
Active transport
Explanation:
The process is considered "active" due to the use of ATP and actively requiring energy to transport molecules. Simple diffusion simply occurs through the membrane and facilitated diffusion uses transport proteins, but not ATP, hence why both are considered forms of "passive" transport.
If a new variety of a tree was produced by botanists through selective breeding that had a growth rate 3 times that of the trees in the scenario, how would that have affected the outcome of the simulation?
Answer:
Greatly affected the outcome simulation.
Explanation:
This fast growth have greatly affected the outcome of the simulation because the tree takes less time to mature and completed its growth stages faster as compared to the old tree. The selective breeding included certain hormones that increases the rate of growth in the tree which leads to change and affected the outcome of the simulation.
Make a list of the energy carriers involved in the Krebs cycle. Include their names before and after they accept the electrons.
What types of things do ocean currents carry
I do not know how in-depth you want this...
The currents carry nutrients and food to sea life that live permanently attached in one place, it also carries reproductive cells to ocean life, and currents carry warm water to the cooler water along with cooler water to warmer water.
Can any wan help me pls :(
Answer:
the picture is blurry I do not understand
PLEASE HELP!
While on a class tour to Rajasthan Aman asked his friend the reason why there are so less number of plants. What his friend would have said? [Value Based]
Answer:
Wh Ra'ya sınıf turundayken
Give two examples of the processes that form soil over long periods of time.
Answer:(1) slow chemical alteration by water seeping through the weathered rock material after rains and (2) mixing of the rock material with organic debris produced by the decay of plants.
Explanation:
