What is limestone?**
Answer: a hard sedimentary rock, composed mainly of calcium carbonate or dolomite, used as building material and in the making of cement.
Eukaryotic organelles can be classified into membranous and non-membranous organelles. Identify them (list them)
Answer:
fluid-filled organelles are membranous. Nonmembranous organelles are ribosomes, cytoskeleton, nucleolus, and centrosome
Explanation:
What does it mean for a bacteria or protist to be photosynthetic?
O They are responsible for disease growth.
o They are only responsible for the decomposition of compost.
They are a primary producer of biomass in the ocean.
They are multi-cellular organisms.
If a bacteria or protist is photosynthetic that means they are the primary producer of biomass in the ocean.
What are primary producers?Primary producers are organisms that produce their own food through the process of photosynthesis or chemosynthesis. These organisms are the base of the food chain in most ecosystems, as they provide the energy that drives the ecosystem.
Photosynthetic primary producers, such as plants, algae, and some bacteria, use energy from sunlight to convert carbon dioxide and water into glucose, a type of sugar. They release oxygen as a byproduct of this process.
Chemosynthetic primary producers, such as some types of bacteria, use energy from chemical reactions to convert inorganic substances into organic matter. These reactions typically involve the oxidation of sulfur compounds or methane, and they occur in environments where sunlight is not available, such as deep ocean vents and underground coal mines.
Primary producers are important because they provide the energy that drives the food chain and support the rest of the ecosystem. Without primary producers, higher-level consumers, such as herbivores and carnivores, would not have a source of energy.
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La importancia de la biología en el cambio climatico
Answer:
¿Qué tiene que ver la biología con el cambio climático?
El cambio climático puede alterar la compatibilidad entre los organismos y su entorno local, reduciendo la supervivencia y la reproducción y provocando impactos posteriores en las poblaciones o distribuciones de especies en las regiones geográficas. Los cambios en el clima pueden beneficiar a algunas especies y causar la extinción de otras.
Explanation:
What is a plant produced from a cross between two plants with different genetic constituents called
Answer:
What is a plant produced from a cross between two plants with different genetic constituents called hybrid plant.
Hybrid is a plant produced from a cross between two plants with different genetic constituents.
WHAT IS A HYBRID?A hybrid is an individual organism produced from a cross between two parent organisms with different genetic constituent.
For example, a mule is a hybrid formed from a cross between a horse and a donkey.
Therefore, a plant produced from a cross between two plants with different genetic constituents is called hybrid.
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What stage of cell respiration is being shown above?
The stage of cell respiration that is being shown above is oxidative phosphorylation. During this stage, the transport of electrons is coupled to the generation of an electrochemical gradient.
Cellular respiration can be defined as a series of metabolic reactions by which aerobic cells generate energy in the form of ATP.
Cellular respiration has three main stages: glycolysis, the Krebs cycle and oxidative phosphorylation.
During oxidative phosphorylation, the transport of electrons across the mitochondrial membrane is coupled to the generation of an electrochemical gradient, which is then used to generate ATP by an ATP synthase as shown in the figure.
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If all mammals today evolved in 65 millions years from a common ancestor, and if one species took 100,000 years to evolve, how many ticks would tjis be?
Answer:
650
Explanation:
What part of a plant is most of photosynthesis happening?
Answer:
the chloroplasts of the plant cell
Explanation:
Which best explains the changes in borders shown on these two maps?.
Answer:
Explanation:
There are clear differences in territorial borders. The United States gained not only the land in its expansion but the authority that goes with it. More especially they have greater access to wealth and resources giving them an edge in purchasing and owning more and more lands and territories.
HELP !!!!!!!!! IM SOOO CONFUSED
Different leads are used to measure the ECG because
Select one:
a.
measurement of heart rate depends on which lead is used to measure it
b.
the signal has a larger amplitude on some leads so it is easier to measure
c.
it is easier to attach some leads to the patient
d.
the interval between ECG events differs on the different leads
e.
they provide information on the spread of the heart beat and to help diagnose which areas of the heart are affected by pathology
Answer:
e.
Explanation:
they provide information on the spread of the heart beat and to help diagnose
How could plate tectonic movements affect the evolution of life?
Answer:
A planet with oceans, continents, and plate tectonics maximizes opportunities for speciation and natural selection, whereas a similar planet without plate tectonics provides fewer such opportunities. Plate tectonics exerts environmental pressures that drive evolution without being capable of extinguishing all life. Explanation: trust :0
In 2018, the average age for first marriage in the United States was 29.8 years for men and 27.8 years for women. These ages for first
marriages are
These ages for first marriages are Average age .
What is the average age of first marriage in the United States?The median age at first marriage for women was 28 years in 2015-2019, up from 26.3 in 2006-2010. The median age at first marriage for men was 29.9 years in 2015-2019, up from 28.1 in 2006-2010.
What is the median age at first marriage for women?In 2019, the median age for the first wedding among women stood at 28.4 years.
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What properties do all liquids share
An area that has been sampled to have a large population of organisms. Does this represent high biodiversity? Why or why not?
An area that has been sampled to have a large population of organisms is
regarded as having a high biodiversity.
Biodiversity is defined as the condition in which areas have a high amount
of plant and animal species present there. Any place with a large population
of organisms is said to have a high biodiversity while places with low
population of organisms have low biodiversity.
The stated facts therefore makes an area that has been sampled to have a
large population of organisms represents high biodiversity.
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Which organelle is marked with x
I'm assuming there is supposed to be a picture to see, can you possibly show that? I can't help you unless I see the options and picture :)
Can people develop PTSD vicariously? How different are the experiences of those who develop PTSD vicariously compared with people who develop it through firsthand experience?
Answer: certain people can develop PTSD vicariously some people cant but some can there is a huge difference between them people that experience in first hand have some what worse PTSD becuase it was first hand and not vicariously
Explanation:
trust me
Why is it that dominant diseases are not as common as recessive ones?
Answer:
Mainly because if a disorder is dominant, then it will be manifested by all who have the gene. If the disorder is severe, then it will reduce the chances of the individual surviving to grow up and reproduce (unless the disorder only manifests symptoms in later life). If they do reproduce, then 50% of their offspring will inherit the gene, and be at a similar disadvantage in reproduction. Thus, there is likely to be selection against the gene. By contrast, a recessive disorder is only manifested if both parents pass on the abnormal gene, and an individual with one gene for the disorder is usually at no disadvantage. Thus, there is much less selection against abnormal recessive disorders.
1. A molecule that contains only carbon and hydrogen is called a
-
carbohydrate
carbonyl
hydrocarbon
hydroxyl
Answer:
hydrocarbon
Explanation:
It's called a hydrocarbon
Sand is a type of mixture A mixture is a _____
Answer:
heterogeneous mixture
Answer:
sand is a Heterogeneous mixture. Heterogeneous mixture has two or more chemical substances.
A mixture is a material made up of two or more different chemical substance/substances which are not chemically combined!
Explanation:
hope this helped ^_^
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Cleavage differs from mitosis because:
From
My parents are tall but I’m short am I adopted???
Answer:
Nope. You get your height genes from both sides of your family - and you can end up taller or shorter than either or both of your parents. You never know if some of your ancestors might have contributed genes.
Hope this Helps!
-Lexie
Drag each tile to the correct location.
Match each process to where it occurs in the carbon cycle.
Answer: In order:
1. Ingestion
2. Decomposition
3. Fossilization
4. Combustion
Explanation:
Whatcha are the three cells of the cells theory
Answer:
2 and 3 are the other ones
Explanation:
HELP PLEASE ITS AN EXAM!!
Which organisms are most closely related?
O species A and B
O species A and C
O species B and C
O species C and D
Answer:
B and c are most closely related
Explanation:
Which of the following causes the change from day to night?
Answer:
^
Explanation:
The Earth orbits the sun once every 365 days and rotates about its axis once every 24 hours. Day and night are due to the Earth rotating on its axis, not its orbiting around the sun. The term 'one day' is determined by the time the Earth takes to rotate once on its axis and includes both day time and night time.
Which of the following ecological levels does not describe interacting biotic and abiotic factors in an area?
A. Biome
B. Community
C. Ecosystem
D. Habitat
Answer:
habitat
Explanation:
The ecological levels do not describe interacting biotic and abiotic factors in an area's habitat. The correct option is D.
What is a habitat?
A habitat is a place where physical or biotic factors are presented. This is a place where all the factors are present to live a species with all suitable conditions.
Habitat of different species is different. They live in their suitable habitat to grow and reproduce accordingly. If a species is moved from its habitat, then it may have difficulties in surviving.
So habitat is not a place where all biotic and species abiotic factors are present, it is a place where all living factors are present that are necessary for the living of a person. So, it is not the ecological level of interacting biotic and abiotic factors in an area
Thus, the correct option is D. Habitat.
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Why are there not many vaccines for fungal & parasite disease as we have for viral and bacterial disease?
Answer:
it is very easy to kill the pathogen by vaccination but it is very difficult to detoxify the toxins produced in the host.
Explanation:
Hopefully this helped!
is menstural cycle also called periods?
Answer:
yes.
Explanation:
However we dont call them 'periods' just simply 'period'
us girls will typically say 'I'm on my period' rather than 'I'm on my periods'
Pls help....
I will brainliest you if you are good answer.
Answer:
1. 38.1 cm
2. 8 days
3. 20 blankets
4. 10 cups of detergent
5. 15 dry cloths
Explanation:
1. 15 x 2.54 = 38.1
2. 192/24 = 8
3. 12/3 = 4
4 x 5 = 20
4. 20/4 = 5
5 x 2 = 10
5. 10/2 = 5
5 x 3 = 15
Fraternal twins, while conceived at the same time, are not genetically identical.
Which statement best explains why these siblings are genetically different from each other?
A.One chromosome from each pair randomly passes to the sex cells during meiosis and leads to differences between the siblings.
B.One chromosome from each pair randomly passes to the sex cells during fertilization and leads to differences between the siblings.
C.Mutations occur during meiosis and lead to differences between the siblings.
D.Mutations occur during fertilization and lead to differences between the siblings.
Fraternal twins are not genetically identical because one chromosome from each pair randomly passes during meiosis and leads to differences between the siblings. Meiosis involves independent segregation of sex chromosomes.
Meiosis is a type of reductional cell division by which a parent cell produces four daughter (gametes) cells having half the genetic material.
Fraternal twins occur when two egg cells are released by the mother, which are fertilized by a different sperm.
During meiosis, sex chromosomes are separated and segregate in a random manner in daughter (sex) cells.
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