Answer:
The Earth's orbit is a nearly circular ellipse. The Earth's orbit is an extremely elongated ellipse. The Sun is located at the only focus point. The Sun is located at one of the two focal points.
Write the formula for cellular respiration and photosynthesis. Compare and contrast both.
a sample of matter breaks down into two kinds of atoms. Was the original sample an element or a compound?
Answer:
element
Explanation:
Matter can be broken down into two categories: pure substances and mixtures. Pure substances are further broken down into elements and compounds. A chemical substance is composed of one type of atom or molecule. A mixture is composed of different types of atoms or molecules that are not chemically bonded.
After you set up a fish tank, you are sure to see algae growing in it. There is plenty of light, fertilizer in the form of fish droppings, and plants or glass for algae to cling to. You may see green strings of algae in the water or green spots growing on the glass. Your whole aquarium can turn green if you don’t stop the algae. To prevent the problem, you can add algae-eating fish or microorganisms to the water. Covering the aquarium for a few days will also kill algae, which need photosynthesis to survive.
Multi-celled algae grow into larger organisms through cell division. For one-celled algae, the purpose of cell division is
Answer:
Reproduction
Explanation:
i just did the question
All the stars you can see at night are still in existence.
True
False
Answer:
FALSE
Explanation:
If a mosquito bites a human vein, will the mosquito explode?
Answer:
No
Explanation:
it wont explode because mosquito's bite our veins, that's how they get their food and how they make their lava. now if a mosquito bit our artery, then they will explode.
How long does ur nose hurt when u hit ur nose hardly on a glass wall?
This is on my worksheet...
Answer:
Depending on how you hit your nose on the glass wall it could be hurt for a while. This person probably broke his nose.
Explanation:
Hope this helps.
Have a great day!
i need help asap pls and thank you.
Answer:
i think it would be A (aka the first answer)
Explanation:
im sorry if im wrong
Which geological feature plays a role in determining the boundary of watersheds?
a)River systems
b) Ridge lines
c) Tributaries
d) Flood plains
Can anyone describe the courtship ritual of wolves, it's a science thing. But only just describe the part where the male shows off to the female, please don't write anything after that.
Answer:
The Male may bow to the female, toss and tilt his head, and lay his legs over her neck in what could only be described as a flirting manner.
The following table shows the currently accepted half-life values for four parent isotopes.
Parent Isotope Currently Accepted Half-Life Values
Uranium-238 4.5 billion years
Uranium-235 704 million years
Thorium-232 14.0 billion years
Rubidium-87 48.8 billion years
Potassium-40 1.25 billion years
Samarium-147 106 billion years
Earth is approximately 4.5 billion years old. Given this information and the data in the table, which of the following isotopes could today contain less than 50 percent of its parent isotope?
Rubidium-87
Thorium-232
Uranium-235
Uranium-238
Answer:
The amount of substance present in a certain sample can be calculated through the equation,
A(t) = A(o)(0.5)^(t/h)
where At is the amount now, Ao is the original amount, t is the number of years and h is the half-life.
For a substance to at most 50% of the original amount, we get the half-life value.
At/Ao = 0.5 = 0.5^(4.5/h)
h = 4.5 billion.
ok the answers are simple:
Parent Isotope Currently Accepted Half-Life Values: is the first one uranium-238 4.5 billion years
Earth is approximately 4.5 billion years old. Given this information and the data in the table, which of the following isotopes could today contain less than 50 percent of its parent isotope: uranium- 238
What process is being shown by water being given off from each bond site? Give both names for this process
Answer:
Bond Formation
Explanation:
When a bond is formed, energy is commonly released as well as sometimes byproducts being formed. Many of the most common kinds of bonds are formed using water molecules or giving off water molecules.
Both osmosis and diffusion require energy and are considered active transport.
A) True
B) False
By controlling the substance that entered and leave the cell the cell membrane helps maintain homeostasis in the cell.
A) True
B) False
Water can flow freely into a gummy bear. What is the term for movement across a cell membrane that does not require energy?
How do you know you exist?
Answer:
through ur senses lol good question
Explanation:
Answer:
Umm if people see you and talk to you thats how you know your living in earth hope this helps?
Explanation:
I'LL GIVE BRAINLIEST IF YOU EXPLAIN THE ANSWER AND IF IT IS RIGHT:
Answer: D
Explanation:
Many unicellular organisms live in bodies of water and must move around to find food. Most often, they must obtain nutrients by eating other organisms. Plant-like protists, and some types of bacteria, can make their own food through photosynthesis.
genetics plz help me with this plzzz
Answer:
1. 100% O
2. 25% A, 25% B, 50% AB
3. 18.75% A, 18.75% B, 56.25% AB, 6.25% O
4. 50% A, 50% B
Explanation:
Im not too sure about 3, but the others should be correct.
use this branching diagram to answer the questions. IF U DONT KNOW THE ANSWER THEN DONT PUT AN ANSWER.
Look at the possible derived shared characteristics, shown in the text box. Think about where these should be placed along the branching tree diagram. From the text box, select a shared derived characteristic that frogs and pigeons have. Explain why you think frogs and pigeons share this characteristic.
1.
2.
3.
4.
5.
HOW ARE FROGS AND PIGEONS RELATED?:
Answer:
Explanation:
The common characters shared by frogs and pigeons are:
presence of jaws
four limbs
The frogs and pigeons share these characteristics because they both are derived or evolved from a common ancestor.
During the course of evolution, the jaws are evolved in beaks in birds or pigeon as beak is light-weight in comparison to jaws.
Similarly, the forelimbs get covered with feathers to become wings.
The common characters shared by frogs and pigeons are:
presence of jawsfour limbsThe frogs and pigeons share these characteristics because they both are derived or evolved from a common ancestor. During the course of evolution, the jaws are evolved in beaks in birds or pigeon as beak is light-weight in comparison to jaws.
What is the similarity between bat and pigeon?Similarity between bat and pigeon is that both from to same domain i.e Animalia.
Both are winged animals with stream lined body that allows them to fly.
Similarly, the forelimbs get covered with feathers to become wings.
To learn more about Animalia click here:
https://brainly.com/question/1231910
#SPJ2
Which of the following correctly compares UV rays and x-rays?
X-rays have the same wavelength as UV rays.
UV rays have the same energy as X-rays.
X-rays have a higher frequency.
UV rays have lower energy.
Answer:
answer is c
Explanation:
9. What is the best source of vitamin C in a balanced diet?
A fish
B fruit
C meat
D rice
Answer:
Fruit
Explanation:
Write a paragraph summarizing the relationships that different organisms can have in an ecosystem and how they interact. Make sure to have at least 3 types of relationships, including examples from nature that show how these organisms interact.
Plz Help!! I need this done by 9 P.M. and it's 8:30 P.M.
Thx if you help Btw
Answer: So do you still need help?
Explanation:
Can someone help me? This is due tonight and I have 14 more assignments to do. I'm kinda confused on this
help me with this plsssssssssssssssssssss
Answer:
A
Explanation:
Please give me Brainliest my friend
Which of the following is NOT a characteristic of urban sprawl?
Question 2 options:
automobile dependency
high rise buildings with ground floor businesses
low density development
strip malls
Strip malls is not a characteristic of urban sprawl. Urban sprawl can be
defined as the rapid expansion of an area with very little concern for urban
planning.
Strip mall is not a characteristic of urban sprawl because these structures
are regarded as a type of mall which can be erected anywhere in any part of
the world.
There is little concern for urban planning because the development is
always of low density. Other characteristics of urban sprawl include:
Automobile dependencyHigh rise buildings with ground floor.Read more on https://brainly.com/question/14212781
Which two statements describe organisms found in the kingdom Plantae?
A.
They are mostly autotrophic.

B.
They have prokaryotic cells.

C.
Their cells lack cell walls.

D.
They are multicellular.
Answer:
C/d
Explanation:
if i do remember that plantae is a plant meaning its multicellular since its alive and autotrophic because it makes its own food
Answer:c and d
Explanation:
their cells lack cell walls and they are multicellular
What type of land feature is located at point D?
Answer:
Peak of a mountain
Explanation:
Which of the following describes the alleles possessed by the ‘unknown parent’?
Answer:
there are no choices
Explanation:
According to Mark Kurlansky, how long could it take for most of the fish we commonly eat to be gone?
Answer: 50 years
Explanation: Good luck! :D
help me plssssss asap. thanks.
can someone help me?
Answer: i'm confused on what i'm supposed to do
Explanation: pls give me more of a question that is not confusing ok then i could help you out
Why is grass classified as a plant
(science)
The zero position along its equator points toward the center of our galaxy in the
celestial spheres
ecliptic planes
equatorial coordinate system
galactic coordinate system
Answer: galactic coordinate system
Explanation:
the last one (galactic coordinate system)