Answer:
A
Explanation:
the object will be hard
half life of plutonium-239 is 24,300 years. if a nuclear bomb released 8kg of this isotope, how many years would pass before the amt is reduced to 1kg
Answer:
8:2=4kg in 24.300 years
4:2=2 kg in other 24.300 years
2:2=1kg in other 24.300 years
Total time= 72900 years
analyze potential impacts of oceans on human populations as the result of climate change in the current century.
Answer:
The result of climate change is ocean levels increasing because of the increase in temperature. Ice is melting due to climate change and this is causing the ocean levels to rise rapidly. If the ocean levels rise above land, some villages/towns/cities could flood. As a result houses of which people live in and other structures may be destroyed. Water sources may also be contaminated, making the water unsafe for humans to consume.
what is the time of growth between cell divisions called
Answer:The time growth between cell divisions is called interphase.
Explanation:
A student looks at the daughter cells that result from a process of cell division. Which evidence would support that the process is meiosis? A. The daughter cells are larger than the parent cell B. The daughter cells are the same size as the parent cell C, the genetic material in the daughter cells is the same as in the parent cell D. The genetic material in the daughter cells is different than in the parent cell
Answer: C
Explanation: When daughter cells divide, they always pick up most of the genetic materials/features that the parent cell have.
Can the ecosystem survive without light? Why or why not?
Answer:
No
Explanation:
Because plants prepare their food form photosynthesis and sun light is basic element for that process to take place. So without sunkight the plants would die and due to their extinction herbivorous animals would die eventually and then the other animals depending upon herbivorous will also die due dissapearence of their food
CAN SOMEONE HELP I DONT HAVE MUCH LONGER ON THIS TEST :( !!
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Answer: Prokaryotic
Explanation:
I hope this helped!
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Answer:
the correct answer choice is c.
Explanation:
prokaryotic cells lack both a nucleus and membrane-bound organelles.
Which of the following best describes a population?
A. All of the seagulls that live along the coast
B. All of the seagulls that live along the coast, the fish they eat, and the water
C. All of the seagulls that live along the coast and the fish they eat
D. All of the seagulls that live along the coast, as well as the sand and the water
Answer:
I think that the answer might be C
Answer:
I mean it looks like B to me but I could be wrong. :)
Explanation:
Which of the following is true of the composition of all materials?
A.
All materials are made up of large parts that can only be seen by the human eye.
B.
All materials are made up of smaller parts that cannot be seen without magnification.
C.
All materials are made up of living cells.
D.
All materials are made up of only one part.
Answer:
Option B.
Explanation:
All materials are made up of smaller parts that cannot be seen without magnification.
A weather map is shown for the southern United States. According to the map, tornadoes are most closely associated with which
weather event?
A)
blizzards
B)
cyclones
hurricanes
D)
thunderstorms
A weather map has been shown for the southern United States. According to the map, tornadoes are most closely associated with thunderstorms weather event. Thus, option D is correct.
What is the use of map in weather or garden?
Map is the distribution of flower in a garden. A diagram has been used to label an object so the parts can be recognised easily. A 3-D model has a xerox copy of the object in a three dimensional figure . An information a word so one can assume infographic . A map helps to represent the layout of the land or distribution of flower in garden.
Geographic information system (GIS) has been analyzed and visualize data for geographic positions on Earth's surface. GIS has computer - based tool that examines spatial relationships, pattern and trends. By connecting geography with data, GIS better understands data using a geographic context.
Therefore, A weather map has been shown for the southern United States. According to the map, tornadoes are most closely associated with thunderstorms weather event. Thus, option D is correct.
Learn more about map on:
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The relative locations of each known gene can be shown on a ____________________ map.
Answer:
genetic
Explanation:
How is G0 represented?
Name some bubonic plague
Bubonic plague is one of three types of plague caused by the plague bacterium (Yersinia pestis). One to seven days after exposure to the bacteria, flu-like symptoms develop. These symptoms include fever, headaches, and vomiting. Swollen and painful lymph nodes occur in the area closest to where the bacteria entered the skin. Occasionally, the swollen lymph nodes, known as "buboes".
Answer:Today, it's best known as the Black Death or the bubonic plague. Medieval people called it "the blue sickness," La pest ("the Pestilence"), and "the Great Mortality." The name bubonic comes from the medieval Latin word bubo via Italian bilbo--meaning a pustule, growth, or swelling.
Explanation:
What does GAC code for?
Answer:
DNA codons
Explanation:
Answer:
Aspartic acid
Explanation:
Complimentary base = CTG ( or CUG )
Which parts are included in a scientific name? Select all that apply.
1.family 2. species 3. genus 4. phylum
Answer:
Genus and species name
Explanation:
Scientific names are created to help decrease confusion in the naming process of animals and plants. The first part is the genus which is the origin of the organism and the second part is the species which is what identifies it as plant, animal, and other stuff.
Hope this helps :)
A salt marsh community includes egrets, gulls, and marsh crabs living together in a salt marsh. What does one female egret represent?
Answer:
It is a tool for keeping population in equilibrium state.
Explanation:
One female egret represents that she is a tool for the continuity of its breed or species because female egret lays eggs and reared their offspring in order to maintain its generation in that salt marsh area. These female egrets are the essential part of this salt marsh ecosystem due to the ability to control the population of other organisms through feeding behaviour. These female egrets helps in maintaining the equilibrium of the ecosystem by constantly producing baby egrets.
Which agency is directly related to supervising and managing campgrounds
Us Forest Service
Bureau of land management
Us fish and wildlife service
National park service
Answer:
National Park Service
Explanation:
why progesterone is called pregnancy hormone????
Answer:
Progesterone isn't as important during normal menstrual cycles, but it is very important in pregnancy. It is the hormone which maintains the uterus lining and also avoids the menstrual cycle from taking place in order to prevent the baby from being aborted.
Justin wants to know how much gas his mother will save if he rides his bike to school rather than being driven in the car. For one month, Justin rides his bike to school. Every week, he asked his mother how much gas she put in the car. The next month, Justin had his mother drive him to school. Again, every week he asked her how much gas she put in the car. What could Justin do to improve this experiment?
Answer:
ask his mother?
Explanation:
Answer:
To improve the experiment, Justin should have created a hypothesis and could have repeated the experiment to see if the results were at least similar.
Explanation:
Hope this helps!
Which was not developed in the 1800s?
natural selection
germ theory
scientific method
cell theory
Answer:
germ theory
Explanation:
it was founded in the 19th century and founded by a man named Louis pasteur and robert koch who provided the final clue
8.
Which one is a true fish
a) Cuttle fish
b) Star fish
c) Dog fish
d) Silver fish
Answer:
Star fish
Explanation:
The stage of mitosis where the chromosomes line up
Answer:
Metaphase
Explanation:
Chromosomes line up at the metaphase plate, under strain from the mitotic shaft. The two sister chromatids of every chromosome are caught by microtubules from inverse shaft posts. In metaphase, the shaft has caught every one of the chromosomes and arranged them at the center of the cell, prepared to separate.
Answer:
It is metaphase.
Explanation:
In metaphase (a), the microtubules of the spindle (white) have attached and the chromosomes have lined up on the metaphase plate. During anaphase (b), the sister chromatids are pulled apart and move toward opposite poles of the cell.
Which gives nourishment to embryo sac??
1) Tapetum
2) Endosperm
3) Thalamus
4)Nucellus
Answer:
4 Nucellus
Explanation:
if u think right then follow me
Which of the following is a biotic in an ecosystem?
A. Wind
B. Tree leaves
C. Small rocks
D. Light from the sun
Answer:
tree leavessssssssssssssssssss
Answer:
B. tree leaves
Explanation:
A biotic is something in an ecosystem that are components of a community such as plants and animals. Leaves can be consumed by animals which makes them biotic. Temperature and climate are NOT biotic.
Have a good day.
which is NOT a apart of the cell theory
Answer: Microscopic organisms are not made of cells.
All things that are living are made of cells.
Yeah Why is global warming a
significant environmental
stressor
Answer:
it can destroy animal habitat like the penguin of polar bear. plus it causes droughts and severe storms to happen. also I've heard that in the warmest places you can catch diseases more easily.
You are breeding alligators to be reintroduced in the wild. One of the female alligators is albino. Would it be possible to get normal colored alligators from this female? Identify the genotypes of each individual and show your work in
the Punnett squares below.
Answer:
It is possible for normal coloured alligators to be produced. If the albino trait is recessive and normal is dominant, the male would need 1-2 dominant alleles to produce a normal coloured alligator. It is also possible for a normal coloured alligator to be produced if albino is dominant and normal is recessive. In this circumstance, the female must be h e t e r ozygous, but the male can be either h o m ozygous or h e t e r o zygous to produce normal coloured offspring.
First punnet square genotypes:
Female - albino
Male - albino/normal (can be either one)
Second punnet square genotypes:
Female - Normal
Male - albino/normal (can be either one)
The air in the thermosphere becomes thinner and thinner until it fades into space. True or false
Answer:
Well to be honest there are no unmistakable separating lines. Each layer mixes into the layer above it and the layer underneath it. Researchers are certain that the air becomes thinnerand more slender farther from the Earth's surface, until it at long last blurs off into space.
Explanation:
Answer:true
i cant explain they wont let me put in l-i-n-k-s
Describe the conditions under which new species may arise.
Answer:
Explanation:i dont knowim so sorry
Answer:
New species arise through a process called speciation. In speciation, an ancestral species splits into two or more descendant species that are genetically different from one another and can no longer interbreed.
Explanation:
Question 8
To what domain does this organism belong?
Domain Eukarya
Domain Bacteria
Domain Animalia
Domain Archeology
Domain Fungi
Answer:
Domain Eukarya
Explanation:
It sort of looks like a seahorse. And if it happens to be a seahorse, it would belong to the domian eukarya because animals are made of animal cells, and a eukaryotic cell can be either animal cell or plant cell. So it only makes sense for it to belong to domain eukarya (only if it is animal/plant).
In dolphins, to have spots on the skin is a recessive trait. One spotted dolphin and one solid gray dolphin have a baby spotted dolphin. Go through the following steps to figure out the genotype of the parent dolphins.
1) what is the genotype of the spotted (recessive) parent?
Answer:
the spotted parent has the genotype ss
Explanation:
we will use s as the letter when describing the spotted trait.
since spotted is recessive, that parents have to have two little s to have the trait. Since the child also has that, we know that they will have the genotype ss. the child would have to get a little s from both parents, so the solid parent would have Ss, showing as solid, but still having the gene for spots.