Answer:
no we havent
Explanation:
The last one was 26,500 or 74,000 years ago.
Which of the following best explains why meiosis results in greater genetic diversity than mitosis?
Answer:
Mitosis involves one division cycle and results in diploid daughter cells, while meiosis consists of two division cycles and results in haploid gametes.
Help pls!
Which of these describes a chemical property of a substance
O A: Wax’s Tendency to Melt at 37 degrees Celsius O B: Gold’s Tendency to stay shiny O C: Paper’s tendency to tear O D: Sugar’s tendency to dissolve in water
Answer:
A
Explanation:
Because
PLS HELP! MULTIPLE CHOICE
Explanation:
HELPING CAN BE DONE WHEN THE QUESTION IS POSTED.
1 generation of peas contains 20 individuals. 10 have the genotype YY and 10 have the genotype yy. In the following generation, 5 are YY, 10 are Yy and 5 are yy. Did this population deles evolve? a. Yes, the genotype frequencies changed from 1 generation to the next b. Yes, the allele frequencies changed from 1 generation to the next C. No, the genotype frequencies did not change from 1 generation to the next d. No, the allele frequencies did not change from 1 generation to the next
Answer:
b.Yes,the allele frequencies changed from 1 generation to the next
Which rock is an example of a chemical sedimentary rock?
-
a: coal
b: iron ore
c: shale
d: sandstone
Answer:
I think none of them since so far lime stone is the most know example of chemical sedimentary rock.
how is cytokinesis different in plant and animal cells
Answer:
The main difference between plant cell and animal cell cytokinesis is the formation of new cell wall surrounding the daughter cells. Plant cells form a cell plate between the two daughter cells. In animal cells, a cleavage furrow is formed between the two daughter cells.
Cell Division Homework #1 Introduction to Cell Division Directions: Compare and contrast the following pairs of terms:
1. sister chromatids / centromeres:
2. mother cell / daughter cell: Identical
3. interphase/ cell division:
4. DNA / chromosome:
5. mitosis / cytokinesis:
Answer:
Sister chromatids / centromeres: When a single chromosome has been replicated in copies, each copy is called a sister chromatids.
A special part of the chromosome called the centromere holds the two sister chromatids together. A centromere is like a built-in rubber band for two sister chromosomes.
Mother cell / daughter cell: identical.
Daughter cells are genetically identical to the mother cell at the stage of production through mitosis.
On the other hand, at the stage of production through meiosis, the daughter cells are genetically different and contain only half of the genetic material of the mother cell.
Interphase / cell division: A cell spends most of its time in what is called interphase, and during this time it grows,
replicates its chromosomes, and prepare for cell division.
The cell then leaves Interphase, undergoes mitosis, and completes its division.
DNA / chromosome: Genes are segments of deoxyirbonucleic acid (DNA) that contain the code for specific protein that functions in one or more types of cell in the body
Chromosomes are structures within cells that contains a person's genes. Genes are contained in chromosomes, which are in the cell nucleus.
Mitosis / cytokinesis: Basically, mitosis is a process by which the duplicated genome in a cell is separated into halves that are identical in nature.
Cytokinesis is the process where the cytoplasm of the cell divides to form two 'daughter' cells. The result is the formation of two 'daughter cells', each having a nucleus.
What is the partially shaded outer region of shadow cast by the earth or moon called?
Answer:
Penumbra I believe
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What is a polar molecule?
Answer:
a polar molecule is a molecule that has a charge on one side of the molecule, that is not cancelled out.
Explanation:
i hope this helps you!
Answer: a molecule that has both positive and negative ions
Explanation: a water molecule has an oxygen element and 2 hydrogen elements the oxygen is a negative ion and the hydrogen ions are positive
Which type of cytoskeletal element is characterized as a hollow, rigid cylindrical tube with walls composed of tubulin subunits
I created a list of reasons for a priest to work for me, but he still doesn't understand. Any advice?
Answer:
No
Explanation:
Do what you need
Which statement best describes what is occurring in the diagram
A- DNA is being replicated
B- RNA is being used as a template
C- RNA serves a template to synthesize
D- DNA serve as a template to make a strand of mRNA
What is mineralization
Answer:
Mineralization is the process by which chemicals present in organic matter are decomposed or oxidized into easily available forms to plants.
What type of growth is shown in the graph?
A) Exponential growth
B) logistic growth
C) carrying capacity
D) growth rate
Answer:
A
Explanation:
Cause I know the soul never dies
I make the chrome-chrome fly
I'm a wave, Roll Tide
Bullets at your face, bow tie
My persona done got her tongue tied
I was taught that a legend never dies
When it's time gotta let the lead fly
'Cause I'm a war-war-war baby
Post-traumatic stress I know the war changed me
Had to bend back but they could never break me
Had to slide
We was hoppin' out in broad day
Serving fiends in the hallway
Promethazine 'til the morningggg
What is the building unit that enters the plant cell organelle membranes?
A -fatty acids
b -ribose sugar
c -simple lipids
d -nucleic acids
Answer:
It's b ribosome sugar
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The building unit that enters the plant cell organelle membranes is ribose sugar. When the ribose sugar enters it has to break down into various substituents.
What is the number of carbons in ribose sugar ?The number of carbons in ribose sugar is 5. It is a pentose sugar.
Fatty acids can not pass through the cell membrane as it is very big in size and because of its very larger size it is nearly not possible to enter through the cell membrane.
Simple lipid are present in the cell membrane that is it is following the fluid mossaic model that is the two layers of lipids are present om the cell membrane where the proteins are present on the outer layer. Various types of proteins are present on the membrane.
Nucleic acid is the part of the genetic material where it is present in the DNA,RNA and various proteins.
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15. The
results when pollutants trap radiant energy from the sun
resulting in a warming trend in the atmosphere.
A. greenhouse effect
B. acid rain
C. radioactivity
D. extinction
Answer:
A. greenhouse effect
Explanation:
The greenhouse effect is a process that occurs when gases in Earth's atmosphere trap the Sun's heat. This process makes Earth much warmer than it would be without an atmosphere. Climate change results from the shedding of gases like CO2 into the atmosphere where it can trap more heat.
What is shown in the diagram?
(Refer attachment for diagram)
The diagram shows a Circuit as a result of the combination of cells
present in it.
What is a Circuit?This is referred to a path in which electric current flows through. It is
divided into the following which include:
Open circuitClosed circuitThe diagram above depicts a closed circuit as there is no breakage in the
flow of current.
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Earth is a ____ system, so the amount of carbon stays relatively constant over time.
Answer:
Carbon
Explanation:
the larynx, trachea, bronchi, and bronchioles all make up the
Answer:
Lower Respiratory Tract
Explanation:
The lower respiratory tract or lower airway is derived from the developing foregut and consists of the trachea, bronchi (primary, secondary and tertiary), bronchioles (including terminal and respiratory), and lungs (including alveoli). It also sometimes includes the larynx, which we have done here. This is where gas exchange actually takes place.
Just for the fun of it, someone walking along the shore in Beaufort, South
Carolina, throws a bottle with a message in it into the sea. Some time later,
someone in Perth, on the west coast of Australia, finds the bottle.
Referring to map, trace the path the bottle probably took! Make sure to
reference specific currents on your path.
The currents that carry the bottle from South Carolina to Peth are the West Wind Drift and the South Equatorial Current.
According to the information provided by the map, it can be inferred that the bottle that is thrown into the sea in South Carolina, USA and arrived in Perth, Australia took the following route:
It traveled down the Atlantic Ocean from the United States to the West Wind Drift current. Once there, it is transported from the west to the east, passing through the lower part of Africa and Asia until it reaches the Indian Ocean. When it reaches the Indian Ocean it is carried by the South Equatorial Current with a northeast direction. In this direction it reaches the coast of Peth, Australia.
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Which characteristic of living organisms is similar to burning fuel in a car engine
Answer:
im sorry but there isnt engough information for me to answer this properly
i need help pls anyone know this ive been stuck for 10 mins so pls
Answer:
glucose and oxygen is the answer
Which Kingdom does not contain a cell wall?
help me pleasee
Answer:
Protista Protists
Explanation:
Protista. Protists are single-celled and usually move by cilia, flagella, or by amoeboid mechanisms. There is usually no cell wall, although some forms may have a cell wall.
which organ uses the circulartory system to communicate with cell throughout the body and control the amount of sugar they have available
pancreas
liver
heart
kidney
Answer:
pancreas
Explanation:
its because the pancreas produces insulin which regulators the amount of sugar in the body
in which part of cell are calcium ions usually found?
Answer:
The endoplasmic reticulum
Explanation:
becuase im smart
Mercury is found in a food chain. Which organism would have the highest concentration?
a
A. Bacteria
O B. Shrimp
O C. Algae
O D. Shark
What is it called when water moves through pores in soil?
Answer:
percolation,
Explanation:
Movement of water into soil is called infiltration, and the downward movement of water within the soil is called percolation, permeability or hydraulic conductivity. ... Pore space. Spaces in soil, between the mineral and organic matter, that are filled with water or air.
Why do we move forward in time?
Which is produced around a wire when an electrical current is in the wire? magnetic field solenoid electron flow electromagnet
HURRY
Answer:
A MAGNETIC FIELD GO GO GO GO
Explanation:
FAnswer:
magnetic field
Explanation:
Messages are carried from the eyes to the brain by Question 5 options: nerves muscle light blood vessels.
Answer: Messages are carried from the eyes to the brain by nerves.
(specifically optic nerves)
Explanation:
When we see something, our eyes send messages to our brain through the optic nerves. Each nerve contains around a million long 'wires', called axons, which carry information from ganglion cells in the retina to relevant parts of the brain.
I got it from Goog|e, I hope it helps.
Messages are carried from the eyes to the brain by NERVES. These fibers send sensory messages between the body and brain.
The nerves are groups of fibers that receive and send sensory messages between the body and brain.
The cells that form nerves are called neurons, which use electrical and/or chemical (neurotransmitter) signals to transmit sensory information.
The optic nerve is a specialized nerve that transmits different types of visual sensory information (i.e., brightness, color, perception, contrast, etc).
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