Answer:
The first person to observe cells was Robert Hooke. Hooke was an English scientist. He used a compound microscope to look at thin slices of cork.
Explanation:
Sorry if I am wrong let me know if I am.
What is one purpose for the peer-review process in scientific research?
Answer:
Its used as validity, and quality of the articles. The main purpose of it is to filter out poor or invalid articles.
Explanation:
After the first replication was observed in their experiments testing the nature of DNA replication, Meselson and Stahl could be confident of which of the following conclusions?
a
Replication is semi-conservative.
b
Replication is not dispersive
c
Replication is not conservative.
d
Replication is neither dispersive nor conservative.
Replication is semi-conservative because the two chains of DNA are separated by the helicase and corresponding nucleotides are placed on each chan by an enzyme called DNA polymerase
Which of the following is not part of the cell theory?
A. All organisms are composed of one or more cells.
B. Cells are the basic unit of life for all living things.
C. All cells come from pre-existing cells.
D. All cells contain a nucleus.
Answer:
the answer is D. All cells contain a nucleus
An exceptionally rainy spring caused many mud slides that covered most of the grass plants and their seeds in soil too deep for successful sprouting. A few seeds were covered in less soil and were able to sprout and reproduce
A. Gene Flow
B. Genetic Drift
The weather in a location is related to
a Air temperature
b Precipitation
c Wind speed and direction
d All of the above
Answer:
all of the above
Explanation:
What does the number 3 in 3p^5 represent? *
you think that there is still discrimination between
Sons and daughters in terms of providing education in our country | What Strategies do you suggest to overcome such discrimination against girls ?
Answer:
well for me i don't think so cause you see now a days that parents treat their children equally they don't have to spoil the son and forgets nout the daughter, parents are equally to their kids and in that case their will be no discrimination at all
Which career would best suit Callie's interests in the scenario below?
Callie would like to pursue a career where she can research ways to improve the nutrition and treatment of domesticated animals
animal Scientist
animal handler
vetenaran
baner
Answer:
Animal Scientist
Explanation:
A dichotomous key uses
Answer:
A key that helps to identify an inknown organism
In aluminum carbonate what is the anion?
Answer:
AI2(CO3)3
Explanation:
this is the structure and chemical and physical and chemical properties for this chemical name
1) Describe the process of osmosis
2)What is ostmotic pressure?
3)Describe the importance of a semipermeable membrane in osmosis?
4)Explain the connection between isotonic solutions and osmosis
5)Why is osmosis referred to as an example of facilitate diffusion?
ANSWER THESE CORRECTLY AND YOU WILL GET 55 points!
Analyze Can relative humidity be more
than 100 percent? Explain your answer.
Answer:
Surprisingly, yes, the condition is known as supersaturation. At any given temperature and air pressure, a specific maximum amount of water vapor in the air will produce a relative humidity (RH) of 100 percent. Supersaturated air literally contains more water vapor than is needed to cause saturation.
Explanation:
Fred notices that all of his friend's brothers and sisters have dark hair. What is the most likely explanation for this characteristic?
O They have identical genes.
O They eat only healthy foods.
O They live in the same environment.
O They have parents with dark hair.
Answer:
They have identical genes.
Explanation:
Hope it helps
What is the speed of sound in air?
A 1000 meters per second
B. 335 meters per second
C.25 meters per second
D. 2500 meters per second
Answer:
its D
Explanation:
source: trusted me bro....
Answer:
it's actually: B. 335 meters per second
Explanation:
Optimal activation of transcription of the GAL genes in yeast requires the function of two proteins: Gal4p and Gal11p. Elimination of either protein decreases activation of the GAL promoters. However, inactivation of Gal11p has the additional and dramatic effect of cell lethality. Why might elimination of Gal11p have a greater effect than elimination of Gal4p
Answer:
Gal4p is a transcription factor that targets specific GAL genes, while Gal11p is a core component of the Mediator complex that plays regulatory roles in the expression of many different genes (class II genes) in eukaryotic organisms
Explanation:
The Gal4 transcription factor is one of the most widely studied eukaryotic transcriptional activators capable of activating the expression of galactose-induced genes. Gal4 is well-known to target specific enzymes involved in galactose metabolism: GAL1, GAL7, and GAL10. On the other hand, Gal11p is a key subunit of the evolutionary conserved Mediator complex that binds to the RNA polymerase II (RNAP II) in order to regulate the transcription of class II genes (i.e., genes transcribed by RNAP II).
Which process uses the sun's energy to convert water on Earth's surface into water vapor? (3 points)
a
Condensation
b
Evaporation
c
Precipitation
d
Transpiration
Answer:
Evaporation is the answer to your question
What is the set of interacting organs and tissues that fulfill one or more body functions ?
Answer:
An organ is a structure that is composed of at least two or more tissue types and performs a specific set of functions for the body. Many organs working together to accomplish a common purpose is called an organ system.
The set of interacting organs and tissues that fulfill one or more body functions is done by an organ system.
What do you mean by Tissues?Tissues may be defined as a biological organizational group that lies between cells and a complete organ. It is synthesized by the accumulation of various cells.
An organ system is a biological system comprising a set of organs that work concurrently to perform one or more functions in the body of an organism.
Each organ has to play a specific role in the body of a plant or animal. This property depends on the distinct types of tissues.
Therefore, the set of interacting organs and tissues that fulfill one or more body functions is done by an organ system.
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Name the four kingdoms of Eukarya, and give two characteristics of each?
Answer: The four kingdoms of Eukarya are: Animalia (Metazoa), Plantae, Fungi, and Protista.
1) Animalia:
- They are multicellular organisms that do not possess chlorophyll!
- They are eukaryotic organisms!
2) Plantae:
- They are multicellular organisms with walled and frequently vacuolate eukaryotic cells!
- These contain photosynthetic pigment in plastics!
3) Fungi:
- Fungi are eukaryotic organisms means they have a true nucleus which is enclosed in membranes.
- They are non-vascular organisms!
4) Protista:
- Protists have a nucleus containing their DNA.
- They also have other membrane-bound organelles, such as mitochondria and the endoplasmic reticulum!
HOPE IT HELPS! BRAINLIEST PLEASE!
The four Kingdoms of Eukarya are ; a) Plantae, b) Animalia, c) Protista and Fungi
Kingdoms of Eukarya Characteristics
A) Plantae Possession of vacuolate eukaryotic cells
Presence of chlorophyll
B) Animalia Absence of chlorophyll
Composed of eukaryotic cells
c) Protista Presence of endoplasmic reticulum
Presence of a nucleus containing DNA
D) Fungi Non - vascular organisms
presence of membrane enclosed nucleus
Eukarya is domain composed of kingdoms whose organisms have their nucleus enclosed within a membrane shaped like an envelope. and the organisms that fall within this domain are grouped into four which are , Animals ( Animalia ) , plants( plantae) , protists ( protista ) and Fungi.
Hence we can conclude that the four kingdoms of Eukarya are Plantae, Animalia, Protista and Fungi.
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At very large distances from the Sun, its corona turns into the solar wind.
True
False
Answer:
the question really didnt make sense to me so false..
Explanation:
false
What drives plate movement?
A. Convection currents in the mantle.
B. Convection currents in the inner core.
C. Convection currents in the crust.
D. Oceanic currents
Answer: The answer is A, convection currents in the mantle.
Explanation: Plate tectonics move because they are carried along by convection currents in the upper mantle of the planet (the mantle is a slowly flowing layer of rock just below Earth's crust). Hot rock just below the surface rises and when it cools and gets heavy, it sinks again.
which organisms perform cellular respiration?
Answer:
bacteria, archaea, plants, protists, animals, and fungi,
Explanation:
Why can’t food chains go on forever?
Answer:
Because at some point in that food chain, the energy consumption has it's limit, and the predator will not have anything to hunt it. There is a limited amount of energy in a food chain that can go around, and once you reach the predator, that energy doesn't quite run out but it hits that limit where the chain has to repeat itself.
Explanation:
When studying predator prey relationships, the predator population _____ the prey population.
A. Is not affected by
B. Lags behind
C. Fluctuates before
D. Does not affect
Answer:
I would say B
Explanation:
When it comes to predator and prey, the prey will always have a higher population than the predator.
Jeffry was wondering why when he made breakfast, that after he was done cooking, the mass of everything he used was not the same. What best
describes why this is so, according to the law of conservation of mass.
A: cooking causes water vapor to escape so it cannot be added to the mass
B: cooking makes things solid and that adds to the mass
C: cooking changes the matter so it is different
D: cooking did nothing so he measured the mass wrong
Answer:
the answer is b guys
Explanation:
cooking makes things solid and that adds to the mass
mark brainliest!
Which property of matter is conserved in chemical reactions and shown by balanced equations?
mass
O volume
Odensity
O shape
Answer:
Density is conserved in chemical reactions and shown by balanced equations
PLZ HELP ASAP PLEASEE
True breeding plant round seeds (DD) were bred with true breeding smooth
seeds(dd) to produce F1 offspring. F1 offspring were then bred with other F1
offspring. What is the genotypic ratio of the resulting F2 offspring? What is the
phenotypic ratio of the resulting F2 offspring?
Answer:
Genotypic ratio F2 = 1:2:1
Phenotypic ratio F2 = 3:1
Explanation:
In this case, parental genotypes can produce only one type of gamete, i.e., one parent can produce only D gametes, while the other parent can produce only d gametes. Therefore, all F1 generation will be heterozygous (Aa). An F1 hybrid is the first filial generation of offspring obtained from crossing between different parent types. The F1 will produce two gametes (A; a) in a ratio 1:1, thereby the F2 obtained by crossing F1 offspring will have a phenotypic ratio of 3:1 (3 D_; 1 dd) and a genotypic ratio of 1:2:1 (1 AA; 2 Aa; 1 aa).
Which of the following
is not a type of lipid?
A. Fat
B. Steroids
C. Sugar
D. Waxes
Pretty sure the answer is Sugar, Correct me if I'm wrong
Sugar is not a lipid, but it is a carbohydrate. Thus, option C is correct.
What is lipid?Lipid is type of biomolecule, consisting, fats, steroids, waxes, and fat soluble vitamins such as A, D, E, K and others. It is an organic molecule which is hydrophobic or amphiphilic molecule which is insoluble in the water.
Fatty acids are included in the class of carboxylic acids which has long hydrocarbon chain and terminal carboxyl group (COOH). As compare to other molecules found in food that are carbohydrates and proteins, lipids contain more than twice energy.
Lipids play significant role in cell signaling as lipid signaling, which is very vital part of it. It is also involved in immunity, hormones such testosterone, estrogen, cortisol. Fat soluble vitamins play an important role in nutrition.
Therefore, sugar is carbohydrate not lipid. Therefore, option C is correct.
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Which structures allow redwoods to grow so tall and still maintain
homeostasis?
A. Cones with scalelike seeds
B. Polyps with strong attachments
C. Flowers, fruits, and seeds
D. Vessels that carry water and nutrients
Answer:
d. vessels that carry water and nutrients
What are the building blocks of proteins ?
A. Nucleotides
B. Monosaccharides
C. Fatty Acids
D. Amino acids
What is the relationship between species richness - the number of species in
an ecosystem - and ecosystem services?
A. Species richness and ecosystem services are not related.
B. Greater species richness results in more ecosystem services.
C. Greater species richness results in fewer ecosystem services.
D. Species richness and ecosystem services are the same thing.
Answer:
b. greater species richness
Explanation:
because its b
Answer:
B
Explanation:
good luck