Answer:
Gametes (23) reproductive cell produced during meiosis that has the haploid number of chromosomes
Zygote (46) diploid cells
Write about Cryptogams and Phanerogams
Explanation:
Cryptogams: Thallophytes, Bryophytes and Pteridophytes are called Cryptogams.Cryptogamae means having hidden reproductive organs.The reproductive organs in these plants are inconspicuous. Their naked embryos are called spores.Phanerogams: Gymnosperms and Angiosperms are Phanerogams.Phanerogams are the plants with well differentiated reproductive tissues. The seeds enclose embryo which is suspended in the stored food.-TheUnknownScientist 72
True or false.plant cells will shrink when placed in concentrated salt solution
Answer:
True
Explanation:
Plasmolyd is the process that causes it to shrink
do plants need oxygen to make sugar?
Answer:
No. Plants MAKE sugar. They "Breath in" Carbon Dioxide
Answer:
yes
Explanation:
oxygen is used in cellular respiration which creates Co2 which in turn helps photosynthisis function creating sugar. :)
An index fossil represents a species that lived during
Answer:
geologic time
human sperm and egg cells that have 23 chromosomes are called
Answer:
The term haploid can also refer to the number of chromosomes in egg or sperm cells, which are also called gametes. In humans, gametes are haploid cells that contain 23 chromosomes, each of which a one of a chromosome pair that exists in diplod cells.
Explanation:
When cells go through division in the early stages of life, they are known of stem cells. How do
we end up with all the different types of cells?
Answer:
these differentiate as a result of signaling mechanisms. ... The daughter cells divides and after each division it becomes more specialized. When it reaches a mature cell type downstream (for example, becomes a red blood cell) it will no longer divide.
Answer:
stem cells are called upon to generate a particular type of cell, they undergo asymmetric cell division.
Explanation:
with asymmetric division, each of the two resulting daughter cells has it's own unique life course
in all organisms, certain genes are expressed at any given time while other genes are not. both prokaryotes and eukaryotes regulate gene expression at the transcription stage. however, the greater complexity of eukaryotic cells makes it possible for gene expression to be regulated at many other stages as well. the diagram below shows different stages at which gene expression may be regulated in eukaryotes.
Answer:
The process of turning genes on and off is known as gene regulation. Gene regulation is an important part of normal development. Genes are turned on and off in different patterns during development to make a brain cell look and act different from a liver cell or a muscle cell, for examp
a cell that gains water when it is immersed in a solution is __.
Answer:
by vai osmosis because water moves from areas of low solute concentration to areas of high solute concentration
Answer the following for 20 points
23. Where are earthquakes most likely to
occur?
A where Earth's tectonic plates are
moving together
B where
magma cools slowly beneath
Earth's surface
C where Earth's lithosphere is in
constant, slow motion
D where Earth's seafloor is spreading
into deep ocean trenches
Answer:
D where Earth's seafloor is spreading into deep ocean trenches
Explanation:
Over 80 per cent of large earthquakes occur around the edges of the Pacific Ocean, an area known as the 'Ring of Fire'; this where the Pacific plate is being subducted beneath the surrounding plates. The Ring of Fire is the most seismically and volcanically active zone in the world.Discuss the concept of inserting a gene from marine algae into food crops. If researchers are successful in this endeavor, salt water is then an option for food crop irrigation. Discuss possible pros and cons of this idea. This response should be a minimum of 3 paragraphs to discuss all parts of the discussion question. Each paragraph should be a minimum of 5-7 well developed sentences.
Question 3
Mitosis produdes
03 diploid cells
o 1 haploid cells
04 haploid cells
2 diploid cells
mitosis produces 2 diploid cells
WILL GIVE BRAINLIEST!!
Most of the world's iron ore, including that found in northern Minnesota, formed during the middle Precambrian period, ranging in age from 1.8 to 2.5 billion years old. They are composed of alternating layers of iron-rich material, most often magnetite or hematite, and silica. These iron oxide minerals formed on the ocean floor, creating the banded iron deposits you see here. What was the source of the oxygen that helped to produce these deposits?
A) The oxygen that was released into the atmosphere as a by-product of photosynthesis caused iron deposits to oxidize creating the iron oxide minerals.
B) Photosynthetic organisms making oxygen as a by-product of photosynthesis and the oxygen reacted with the iron dissolved in seawater to form iron oxide minerals.
C) The decomposition of carbon-based life forms in the oceans released oxygen and carbon dioxide. These gases reacted with the iron deposits forming the minerals mentioned.
D) In Earth's early biosphere, there were not organisms that underwent aerobic cellular respiration and an excess of oxygen built up in the atmosphere. This oxygen reacted with iron deposits to form iron oxide minerals.
Answer:
b
Explanation:
Answer:
) Photosynthetic organisms making oxygen as a by-product of photosynthesis and the oxygen reacted with the iron dissolved in seawater to form iron oxide minerals.
Explanation:
How are identical twins different than fraternal twins (explain by discussing sperm and egg)?
What is a population?
a. a group of organisms that occupy the same general area at different times
b. a group of individuals of a single species that occupy the same general area at the same time
c. the growth rate of individuals of a single species that occupy the same general area at the same time
d. the growth rate of individuals of a single species that occupy the same general area at different times
What kind of tree was the first Christmas tree? Merry Christmas Everyone!!!!!!!!
fir tree and Merry Christmas <3
Answer:
Christmas Trees From Germany
Explanation:
Germany is credited with starting the Christmas tree tradition as we now know it in the 16th century when devout Christians brought decorated trees into their homes. Some built Christmas pyramids of wood and decorated them with evergreens and candles if wood was scarce.
The fence around the school's garden is 22.6 m. If the garden is 7.5 m long, how wide is the garden? *
Answer:
Explanation:
22.6 is the perimeter because the question has the key words "fence" and "around" that let us know.
Perimeter equation is L+L+W+W
We know 7.5 is the length (could also be the width, it doesn't matter the order)
The length appears two times, so lets plug it in-
22.6= 7.5+7.5+W+W , Now you want to combine the like terms so.. 7.5+7.5=15
22.6= 15+W+W
Now subtract the 15 from 22.6
7.6= W+W , there are two W's left so divide 7.6 by 2
7.6/2= 3.8
It is 3.8 m wide
Bob has brown hair and Sally has blonde hair. If brown hair is dominant and blonde hair is recessive, is it possible for Bob and Sally to have a blonde-haired child? Use the GENOTYPE of each parent to EXPLAIN your answer.
Answer:
Yes
Explanation:
Bob (BB) Sally (bb) = spawn (Bb) Brown is dom resulting in a brown hair Spawn.
150 j of work was done to lift a crate with force of 20 N how far was the crate lifted?
Answer:
7.5 m
Explanation:
W = 150 J
F = 20N
[tex] \because \: W \: = Fs \\ \\ \therefore s = \frac{W}{F} = \frac{150}{20} = 7.5 \: m[/tex]
the best way to build individual muscle strength and muscle size is _________________; while the best way to improve muscular endurance is _______________________.
Answer:
By exercising and eating a good diet
Explanation:
What are cells made of?
Answer:
All cells are made from the same major classes of organic molecules: nucleic acids, proteins, carbohydrates, and lipids.
Explanation:
The first reaction of the body to a cut is to restore the continuity ?
Explanation:
First,blood cells called platelets join together at the paper cut and form a clot to stop the bleeding.The platelets then release chemicals called Cytokines into your blood stream.Cytokines attract the attention of certain cells to start healing your cut.
When the skin injured,our body sets into motion an automatic series of events,often reffered to as the " cascade of healing",in order to repair the injured tissues.The cascade of healing is divided into four overlapping phases:Hemostasis,Inflammatory,Poliferative,and Maturation.
That's the answer Hope it helps
Augustine is writing an essay on stem cells. Help him by completing the sentences. Stem cells have the ability to divide and produce unspecified cells. They can be developed into a required tissue because of their ability of.
Stem cells can be developed into a required tissue because of their ability of cellular DIFFERENTIATION. These cells can develop specialized cells.
Stem cells are cells that can develop into specialized types of cells in order to perform specific functions.
The process of cellular differentiation from stem cells involves differential gene expression patterns, a cellular process that leads to the development of distinct types of cells.
For example, hematopoietic stem cells express specific genes (e.g., the hemoglobin gene) in order to differentiate into mature red blood cells that function to trasnport oxygen to all body cells.
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retroviruses - Examples of RNA viruses are Cvid-19 or the virus that causes __
Answer:
I think death but im not sureExplanation:
------
the energy required to lift an object is supplied by atp derived from the breakdown of molecules of
ATP is derived from the breakdown of molecules of glucose. Glycolysis is
the metabolic reaction which converts glucose into ATP.
The energy in glucose has to be converted to a usable form by the cells
which is why it is always converted to ATP( Adenosine triphosphate). The
energy supplied by ATP is then used to perform various activities in the
body.
Glucose is a type of carbohydrate which is a means of energy in organisms.
The explanations given validates ATP has been derived from the
breakdown of molecules of glucose.
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Answer:
glucose
Explanation:
I got it correct on test
22. Where does most metamorphic rock
form?
A at Earth's surface
B in volcanoes
C in ocean waters
D deep underground
Explanation:
Most metamorphic rocks form deep below the Earth's surface. These rocks are formed from either igneous or sedimentary rocks, making them a changed...
the 5 physical factors that scientists use to develop ocean and seafloor
zones are
1
2
3
4
5
Answer:
1. Light penetration
2. Distance from shore
3. Depth of water
4. Temperature
5. Amount of nutrients/salt
Explanation:
Oceanographers use various methods to determine vertical and horizontal zones in the ocean. First and foremost are the distance from the land and the depth of the water. These contribute to the other factors, such as temperature and light penetration. They also measure how much salt or nutrients are available at that zone, which plays a role in how much life is discovered in the location.
The photic and mesopelagic zones are mainly grouped by light penetration, while mesopelagic, abyssopelagic, hadalpelagic, benthic, and bathyal zone are categorized by depth and temperature. When looking at the pelagic zone, the neritic and the oceanic sections are differentiated by the distance from the land.
Which cut on the evolutionary tree would create a clade?
A, B, C, D
(See photo for example)
Answer:
A
Explanation:
How did the Mafia gain the interest and scrutiny of the public?
Mafia gain the interest and scrutiny of the public through their unique and fearful actions.
Mafia gain the interest and scrutiny of the public by threatening people in the society as well as killing some of them. The main aim of Mafia is to earn money so they perform many actions in order to gain money from the public such as extortion, kidnapping etc.
The person who gives money to Mafia is safe but that person who refuses to pay money to Mafia will gain the punishment of death so we can say that in this way Mafia gain the interest of the public.
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how has the change in the human population over time affected the environment