Answer:
Mitotic spindle.
Explanation:
The chromosomes are separated in the anaphase stage by a structure known as the mitotic spindle. The separated chromosomes are pulled with the help of spindle to the opposite poles of the cell. This spindle apparatus is the cytoskeletal structure of cells that produces during cell division in order to separate sister chromatids present between daughter cells.
Since all cells that make up tissues require oxygen and nutrients, they depend on the _________ system to function properly.
muscular
circulatory
nervous
Answer:
Circulatory
Explanation:
The Circualtory sytem circulates blood, oxygen, and nutrients all over the body
what happens at divergent, convergent, and transform boundaries
Answer:
Divergent boundary—where the new crust is formed as the plates shift away from each other. Convergent boundary—where the crust is broken when one plate dives under another. Turn borders—where the crust is neither formed nor lost as the plates slip horizontally past each other.
hope this help you :3
Explanation:
Which is a physical characteristic of a cat?
O feathers
O fur
O fins
O wings
Answer:
fur
Explanation:
Have you seen a cat? It don't have feathers or wings because it's not a bird. It doesn't have fins because it's not a fish.
While studying environmental samples collected from the ground cover of the Amazon rainforest, you isolate a new microorganism. You note that it is single-celled, lacks a nucleus, and is found only in areas of the rainforest that remain humid year-round. Based on this information, how would you best describe this organism
Answer:
The organism is a prokaryote from the domain Archaea since it lacks organelles and lives in what can be considered an extreme environment.
Explanation:
The organism is single-celled and lacks a nucleus. Prokaryotic organisms generally lack nuclei and other membrane-bound organelles such as mitochondrion and chloroplast. Hence, both attributes are characteristic of a typical prokaryote although being unicellular is not exclusive only to prokaryotes.
Prokaryotes can be bacteria of Archaea. The organism, in this case, also lives in an area that is humid all year round. Such an area can be considered to be an extreme environment. Living in extreme environments is a characteristic that is peculiar to Archaea only.
Organisms in the Archaea domain are generally prokaryotic, unicellular, and live in extreme habitats such as hydrothermal vents, marshes, hot springs, etc.
What is the ancestor of fish?
Answer:
Haikouichthys and Myllokunmingia
Answer:
Pikaia
The first ancestors of fish, or animals that were probably closely related to fish, were Pikaia, Haikouichthys and Myllokunmingia. These three genera all appeared around 530 Ma. Pikaia had a primitive notochord, a structure that could have developed into a vertebral column later.
Explanation:
Hope is helpful mark brainliest plz :)
Why are animals more closely related to fungi than plants are?
They are both decomposers
They are both autotrophs
They are both eukaryotic
They are both heterotrophs
Which of the following could be found on either public or private land?
a state park
b. single family residence
C mine
dfactory
Please select the best answer from the choices provided
А
OD
Answer factory
Explanation:
hope this helps!
One model of a DNA molecule is a twisted ladder.
In this model, what do the rungs of the ladder represent?
O A. Nitrogen bases
B. Sugars
C. Amino acids
D. Phosphates
Answer:
a
Explanation:
Answer:
Explanation:
Yes correct Nitrogen bases!
describe what heterozygous?
Answer: definition Your genes are made of DNA. This DNA provides instructions, which determines traits like your hair color and blood type. There are different versions of genes.
Explanation: You're very welcome ^^
Answer:
having two different alleles of a particular gene or genes
Explanation:
Is a crystal alive? Why or why not?
Answer:
A crystal is an inorganic (not alive, not from something alive) homogeneous solid (meaning a solid with the same properties at all points) with a three-dimensional, repeated ordering of atoms or molecules. ... Crystals grow in one of three primary ways: from a vapor, from a solution or from a melt.
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Answer:
B ong
Explanation:
still required to do 20 characters but its B ong
How do you find the number of neutrons an atom has from the Periodic Table?
Answer: Subtract atomic number and atomic weight to get neutrons
The circumstances that result in death, which are designated as natural or
unnatural *
Answer:
When someone dies of “old age” or as a result of a health condition or illness, his or her death is considered a natural death; however, if this is not the case, it will instead be categorized as an unnatural death.
Explanation:
Please answer correctly if i dont pass this question ill fail the test :(
How is in vitro DNA synthesis in a test tube different than in vitro DNA synthesis in an automated synthesizer
Answer & Explanation: In vitro is used when DNA is synthesized in the lab, outside cells, in microtubes i.e., in an artificial environment outside of the living organism. Making DNA in a test tube (by hand) is very labor-intensive and takes a lot of time, whereas, the use of DNA synthesizers designed by companies allow for the production of DNA molecules in both small or large quantities and in far lesser time it would take to do so by hand, in vitro in test tubes.
which process produces more ATP aerobic, or anaerobic respiration??
Answer:
aerobic
Explanation:
has far more energy therefore produces more ATP
Answer:
Aerobic respiration produces much more ATP than anaerobic respiration. Anaerobic respiration occurs more quickly than aerobic respiration.
Explanation:
https://bio.libretexts.org/
A single atom of carbon is joined to a hydrogen atom. How many double bonds can the
carbon still form?
Answer:
One carbon atom forms four covalent bonds with four hydrogen atoms by sharing a pair of electrons between itself and each hydrogen (H) atom.
Explanation:
11. What property of waves would help measure the height of the waves in a
Tsunami?
a. Wavelength
b. Frequency
c. Wave speed
d. Amplitude
12. What inference can be made about the wavelength of a wave with a constant speed and a low frequency
a. The wavelength is short
b. The wavelength is long
c. Must be a mechanical wave
d. Must be a wave in the electromagnetic spectrum
13. The wave speed of an electromagnetic wave is constant when travelling through a medium. Which formula below is the correct one to use when calculating for wave speed
a. Wave speed = frequency x period
b. Wave speed = period x wavelength
c. wave speed = frequency x wavelength
d. Wave speed = crest x trough
Answer: amplitude would help measure height
low f, constant speed, long wavelength
speed = frequency x wavelength
Explanation: constant speed, low frequency
frequency = speed/wavelength; at constant speed f proportional to 1/wavelength, so low f __> long wavelength
speed = freq*wavelegth
Describe the 5 spheres, and key things that can be found in each one.
Answer:
Plants (biosphere) draw water (hydrosphere) and nutrients from the soil (geosphere) and release water vapor into the atmosphere. Humans (biosphere) use farm machinery (manufactured from geosphere materials) to plow the fields, and the atmosphere brings precipitation (hydrosphere) to water the plants.
Explanation:
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Isostasy is the balance between what two forces?
A. Accretion and buoyancy
B. Gravity and heat
C. Gravity and buoyancy
D. Depth and buoyancy
Answer:
C-Gravity and buoyancy
Explanation:
Downwards gravity and upward buoyancy
Answer:
it would be .C.
Explanation:
what are the major types of DNA called
Answer:
Autosomal DNA and mitochondrial DNA
Explanation:
There are two types of DNA in the cell – autosomal DNA and mitochondrial DNA. Autosomal DNA is packaged into 22 paired chromosomes.
In each pair of autosomes, one was inherited from the mother, and one was inherited from the father. Autosomal DNA is passed down from both the mother and the father and provides clues to a person’s ancestry.
Hope this helps!
Brain-List?
Which organic molecule doesn't dissolve in water, floats or is just
dispensed in water? (Insoluble Compound)
Answer:
Biphenyl
Explanation:
Biphenyl does not dissolve at all in water. Why is this? Because it is a very non-polar molecule, with only carbon-carbon and carbon-hydrogen bonds.
Answer:
Biphenyl
Explanation:
Biphenyl does not dissolve at all in water. Why is this? Because it is a very non-polar molecule, with only carbon-carbon and carbon-hydrogen bonds.
Where did the energy to power the light-independent reactions come from?
A. chlorophyll from photosystem
B. FADH2 from the outer membrane
C. NADH in mitochondria
D. proton gradient across thylakoid
Which of the following would be considered an example of commensalism?
a
A tapeworm living in the digestive system of a mammal. The tapeworm uses some of the food for its own energy that the mammal eats.
b
A hummingbird and a flower. The hummingbird receives food from the flower, and the flower uses the hummingbird to spread its pollen.
c
The lamprey and a fish. The lamprey attaches to the outside of the fish and utilizes its flesh for food.
d
A barnacle growing on a whale. The whale moves the barnacle to places where food can be found, but the whale is not harmed.
Answer: B) A hummingbird and a flower. The hummingbird receives food from the flower, and the flower uses the hummingbird to spread its pollen.
Explanation: Commensalism is a symbiotic relationship between two species in which one benefits and the other is unaffected.
Credit: KhanAcademy
During active transport, what is required to move material across the cell membrane? А energy B water С oxygen D cytoplasm
Answer:
c
Explanation:
they move by oxygen
An intrinsic igneous rock is formed as results of
Answer:
In essence, igneous rocks are formed through the cooling and solidification of magma ( or lava). As hot, molten rock rises to the surface, it undergoes changes in temperature and pressure that cause it to cool, solidify, and crystallize.
Explanation:
hope this helps
What was one biome you learned about today? Include one key characteristic
about this biome.
Answer: One biome I learned would be the desert biome and how there are oasis and other things you can find there, etc...
Explanation:
What type of reproduction does Pisum sativum undergo and why?
Answer:
he garden, or English, pea (Pisum sativum) is classified as a hermaphrodite plant because its flowers have both male and female parts.
Explanation:
The mammoth, which was very hairy, and the elephant, are both thought to have evolved from a scantily haired ancestor. Explain, as fully as you can, how the mammoth evolved from the common ancestor. (5)
Answer:
Evolution occurs about 6 million years ago.
Explanation:
The mammoth evolved from the common ancestor because evolution occurs about 6 million years ago. The modern elephants and woolly mammoths share a common ancestor and they are split into two separate species about 6 million years ago due to change in genetics as well as environment that leads to the evolution in the elephants.
Simplify the combined equation for photosynthesis by crossing out compounds that are both products and reactants. How does this equation compare to the general equation for photosynthesis (CO
Answer:
The simplified equation is as follows:
CO2 + H20 + light energy ---> glucose + O2
Comparing this simplified equation with the general equation of photosynthesis (CO2+ H2O + light energy → [CH2O] + O2), it can be concluded that the process of photosynthesis is a two-stage process, and that a combination of the reactions of the two processes gives the products of photosynthesis
Note: The question is incomplete. The complete question is given below:
Simplify the combined equation for photosynthesis by crossing out compounds that are both products and reactants. How does this equation compare to the general equation for photosynthesis (CO2+ H2O + light energy → [CH2O] + O2)?
Explanation:
Photosynthesis -the process by which plants use the energy of the sunlight to produce sugars- occurs in two stages: the light-dependent stage and the light-independent stage.
The light reactions occuring in the thylakoid membranes use the energy of sunlight to split water producing electrons which are transferred to NADP+ to produce NADPH and ATP from ADP and Pi
Light energy + H20 + ADP + Pi + NADP+ ---> 02 + NADPH + ATP
In the light-independent reactions occuring in the stroma, energy from ATP and NADPH in addition with carbon dioxide in the atmosphere is used to produce glucose
NADPH + ATP + CO2 ---> glucose + ADP + NADP+
The combined equation of the two reactions is given below:
CO2 + H20 + light energy + ADP + ATP + NADPH + NADP+ + ---> glucose + 02 + ATP + NADPH +ADP + NADP+
The simplified equation is as follows:
CO2 + H20 + light energy ---> glucose + O2
Comparing this simplified equation with the general equation of photosynthesis (CO2+ H2O + light energy → [CH2O] + O2), it can be concluded that the process of photosynthesis is a two-stage process, and that a combination of the reactions of the two processes gives the products of photosynthesis