Answer:
Disease outbreaks can kill thousands of animals very quickly. They hit especially hard if the animals are rare, threatened or fragmented species.
Cross two pink snapdragons. What is the genotypic and phenotypic probability of such a cross?
Answer:
Genotypic probability = 1RR: 2Rr: 1rr
Phenotypic probability = 1Red: 2Pink: 1white
Explanation:
This question involves a single gene coding for skin color in snapdragon plants. The alleles are incompletely dominant over one another and hence, produce an intermediate pink phenotype.
According to this question, two pink/heterozygous snapdragons were crossed i.e. Rr × Rr. Each parent will have gametes R and r. Using these gametes in a punnet square (see attached image), the following proportion of offsprings will be produced:
Genotypic probability = 1RR: 2Rr: 1rr
Phenotypic probability = 1Red: 2Pink: 1white
what element has a charge of -2 when bonding? on the periodic table
Answer: Oxygen has a charge of -2 when bonding
1. What is the meaning if the term bipedalism?
a. the expression of bilateral symmetry in an organism
b. the ability to walk upright on two feet
c. the ability to produce two flowers on a stem
d. the ability to ride a bike with two pedals
2. Why did Neanderthals evolve to have a wider, stockier body shape?
a. because they were bipedal
b. because they spent their life in trees
c. because they migrated to Europe with a colder climate
d. because they stayed in Africa with a warm, dry climate
3. What is the name of the current species of humans?
a. homohabilis
b. homoerectus
c. homoneanderthalis
d. homosapians
4. what species name did raymond dart give to the hominid skull that he found?
a. australopithecus africanus
b. homoerectus
c. homohabilis
d. australopthecus afarensis
Answer:
a c c b
Explanation:
Would a volcanic eruption affect Earth’s climate?Justify your response.
Answer:
Explanation:
The gases and dust particles thrown into the atmosphere during volcanic eruptions have influences on climate. Most of the particles spewed from volcanoes cool the planet by shading incoming solar radiation. The cooling effect can last for months to years depending on the characteristics of the eruption.
area of the diagram
ITEM BANK: Move to Bottom
Deer
Bear
Coral reef
Grass
Lobster
Algae
Fish
Oak tree
Frog
human
terrestrial
Both
aquatic
drag and drop answer bere
drag and drop answerber
drag and drop answer here
aquatic
Lobster
Algae
Fish
Coral reef
terrestrial
Oak tree
Deer
Bear
human
Both
Grass
Frog
Which of the following goes on forever in two
exactly opposite directions?
O A. A point
O B. A ray
O C. A line
O D. A segment
SUBMIT
Answer: A line
Explanation:
30 g of ammonia nitrate and nitrite are added to a soil sample. Predict whether these concentrations would increase decrease or stay the same if ammonia nitrifying bacteria were added to the sample 30 g of ammonia nitrate and nitrite are added to a soil sample. Predict whether these concentrations would increase decrease or stay the same if ammonia nitrifying bacteria were added to the sample
Answer:
See explanation
Explanation:
Nitrifying bacteria convert the most reduced form of soil nitrogen, ammonia, into its most oxidized form, nitrate(Science direct).
Nitrifying bacteria converts ammonia to nitites and finally to nitrates in the soil.
Hence, when 30 g of ammonia, nitrate and nitrite are added to a soil sample in the presence of nitrifying bacteria; the concentration of ammonia decreases over time while the concentration of nitrite and nitrate increases over time.
ammonia stays the same
nitrates decrease
nitrates increase
Most membrane-enclosed
organelles, including the
nucleus, ER and Golgi, probably
originated from deep folds in
the
Answer: Plasma membrane
Explanation:
According to endosymbiont theory most of the membrane bound cell organelles like nucleus, Golgi bodies, and endoplasmic reticulum are originated from plasma membrane in the deep folds. This theory also suggests that chloroplast and mitochondria are originated from the bacterial cells or primitive prokaryotic cells. These are the organelles chiefly present in the eukaryotic cells. This theory suggests that primitive earth was supported by the bacteria.
If Mr. and Mrs. Weasley are a wizard and a witch, what are their genotypes?
HELPP PLSSS
After mitosis and cell division are over how are the two new cells similar to the original cell in interphase??
Answer:
Explanation:
In s phase, the dna replication take place in interphase, The dna in the nucleus replicates so that each chromosome consists of two identical chromatids, then in mitosis they are pulled apart in anaphase in which both cells have half of the chromosomes, in Telophase each chromatid contains one dna molecule, which will replicate itself during interphase before the next division.
The new cells are similar from the original ones in interphase as these will have same amount of DNAs.
What is interphase?The interphase phase of the cell cycle is where the majority of the life of a typical cell occurs.
Interphase is the cell's "daily living" or metabolic phase, during which it obtains and metabolizes nutrients, grows, replicates its DNA in preparation for mitosis, and performs other "normal" cell functions.
The cell cycle's longest phase is interphase. This is the stage at which the cell grows and copies its DNA before entering mitosis.
Chromosomes align, separate, and move into new daughter cells during mitosis. Because the prefix inter- means "between," interphase occurs between mitotic (M) phases.
In interphase, the new cells are similar to the original ones because they have the same number of DNAs.
Thus, this can be the similarity between these two.
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Please help I’ll put max points
answer ::::::::: there u go
Answer:
other answer
Explanation:
 Explain the difference in the structure of plant and animal cells
please No links
Which of the following are techniques besides molecular clocks used by scientist to calculate the rate at which a stretch of DNA changes? (Choose all that apply)
•comparison of human behaviors
•carbon dating of fossils
•comparison of blood proteins
•comparison of homologous structures
Answer:
B and D
Explanation:
Human behaviors do not affect the entire evolution of every lifeform that has existed, therefore, A is FALSE
Carbon dating is commonplace in figuring out how old a lifeform could be, therefore, B is CORRECT
Blood proteins are commonly known to not last long and decompose fast, so fossilization of blood tends to not happen, plus it's next to impossible to tell what species had that genetic data, therefore, C is FALSE
For D, I kinda forgot most of my explanation, but I remember that it's correct, as I got the question correct on the assignment.
The carbon dating of fossils and comparison of homologous structures are techniques besides molecular clocks used by scientist to calculate the rate at which a stretch of DNA changes.
So, option B and D are correct one.
Human behaviors do not affect the entire evolution of life of organism that has existed, therefore, A is FALSE
Carbon dating is commonplace in figuring out how old a life of any organism, therefore, B is CORRECT
Blood proteins are commonly known to not last long and decompose faster, so fossilization of blood tends to not happen, plus it's next to impossible to tell what species had that genetic data, therefore, C is FALSE
By comparing of homologous structures we determine nucleotide sequence exchanged between two similar or identical molecule of DNA. So, option D is correct
What is Carbon dating?It is also referred as radiocarbon dating.It is the method used to determine the age of the living organism containing organic( carbon ) based material by using isotopes of carbon which is radioactive.Learn about carbon dating
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The diagram shows a food web,
Mountain
lion
Deer
Hawk
Fox
Rabbit
Owl
Snake
Green
plant
Mouse
What is most likely to happen if the snake population is
wiped out?
Answer:
owl will decrease and mouse will increase
Answer:
the snake population will decrease. for a p e x
Help biyology teacher
Answer:
C. P -› F1 -› F2
Explanation:
In genetics and breeding, the following symbols represents the following:
P => parental
F1 => First filial generation
F2 => Second Filial generation
The crossing of two parent plants (P) produces offspring that is tagged the first filial generation (F1). The next cross involving the F1 offspring produced second filial generation (F2).
Therefore, the correct sequence is:
P -› F1 -› F2
What is pyruvic acid changed into? alcohol fermentation
help me pls, which one is correct?
Answer:
yes you need to get the last two
Explanation:
did the thing
the graph shows temperature anomalies for earth over a 140-year period. a temperature anomaly is a variation from the average temperature. a positive temperature anomaly indicates a temperature that is higher than average. what conclusion can you draw from the information shown in the the graph?
Answer:
A
Explanation:
I believe the answer is a because temperatures won't rise because of natural causes they will rise because of human activities. these activities include deforestation farming and oil mining ect
Answer:
its d earth is expiericing global warming
Explanation:
its d
SPHERE Why do you think each of these systems includes the word "sphere"?
Answer:
Because the "-spheres" are literally presented as spheres.
Explanation:
If you think about the atmosphere, its literally just a huge ball of the air around you. Same with hydrosphere, biosphere, etc. (It's just a ball of whatever is categorized in that sphere.)
Choking on food is most likely caused by an interference with the proper functioning of the...
Answer:
esophagus
Explanation:
the esophagus is the pipe/muscle that leads to your stomach
Choking on food is most likely caused by an interference with the proper functioning of the oesophagus.
What is oesophagus?
The digestive system, sometimes known as the gastro-intestinal tract, includes the oesophagus (gullet) (GI tract). An oesophageal tube is made of muscles. It joins the mouth with the stomach.
The oesophageal walls contract together as you swallow food (contract). This causes the food to travel from the mouth to the stomach.
The diaphragm is a layer of muscle located below your lungs. It facilitates breathing. The majority of your oesophagus is located in your chest above the diaphragm.
Therefore, Choking on food is most likely caused by an interference with the proper functioning of the oesophagus.
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In a grassland ecosystem, a prolonged drought has caused depletion in food sources for a species of rabbit. Which of the following would allow for the population of rabbits to recover from the drought?
Genetically diverse population, with some rabbits able to survive with fewer water resources than usual
The population of rabbits must reduce its rate of reproduction to produce only the most fit offspring
Individuals of the rabbit population should have less genetic diversity to become more similar and evolve in the same direction
Individuals of the rabbit population must develop traits that make them better adapted to fewer water resources
Answer:
Genetically diverse population, with some rabbits able to survive with fewer water resources than usual
Explanation:
I took the quiz and got that answer
If a plant closes its stomata, this means *
it will become turgid
it loses water by transpiration
it can take in more oxygen for respiration
it cannot take in carbon dioxide for photosynthesis
The process in which an organism exchanges gases with its environment is known as
O respiration
O precipitation
O transpiration
O evaporation
Answer: the answer is respiration
Please help Why must animals eat food but plants do not eat food?(1 point) Plants do not appear to eat, but they do actually eat nutrients in the soil. Animals must eat to obtain food that they can't get from the soil. Plants make their own food through photosynthesis, so they do not eat. Animals eat because the energy they make themselves is enough to live but not grow. By eating, they can grow big and strong. Plants use photosynthesis to make their own food instead of eating. Animals eat plants because they like the taste of certain fruits. Plants make their own food through photosynthesis. Animals must eat because they cannot make their own food.
Answer:
Because they will die if they don't eat food, they need the protein to keep them moving and there muscles strong. Some animals get food off of other animals.
Explanation:
Answer:
Explanation:
Well there is animals who only Eat plants and not other animals
Examples of large herbivores include cows, elk, and buffalo. These animals eat grass,
tree bark, aquatic vegetation, and shrubby growth. Herbivores can also be medium-sized
Hope this helps
the law of independent assortment states that separate (blank) for separate traits are passed independently of one another from parents to offspring
thank you:)
Answer:
genes
Explanation:
literally just answered this question i guessed and got it right
Answer: The correct answer is genes
Explanation: Confirmed correct :)
What two things must come together to form a seed?
Answer:
Double fertilization involves two sperm cells; one fertilizes the egg cell to form the zygote, while the other fuses with the two polar nuclei that form the endosperm. After fertilization, the fertilized ovule forms the seed while the tissues of the ovary become the fruit.
Describe one of the three types of volcanoes we discussed today.
Answer:
The types of volcanoes that I am aware of are dormant, active, and extinct. Active volcanoes are volcanoes that have erupted in the past 10,000 years. Dormant volcanoes are active volcanoes that are supposed to erupt in the future. Extinct volcanoes are volcanoes that have not had an eruption in the last 10,000 years and is not expected to erupt.
One benefit of genetic diversity is that it
Answer:
Explanation:
Genetic diversity is of fundamental importance in the continuity of a species as it provides the necessary adaptation to the prevailing biotic and abiotic environmental conditions, and enables change in the genetic composition to cope with changes in the environment.
*PLEASE ANSWER ASAP!!!*
What is a coral skeletal structure that has voids between the polyps?
a.) organic structure
b.) perforated structure
c.) exhaustive structure
Answer:
A
Explanation:
Each polyp makes its own cup-shaped skeleton called a calyx ("KAY-lix)" from limestone (calcium carbonate). The base of the calyx is called the basal plate, and the outer walls of the calyx are called the theca ("THEE-kuh")
Answer:
I'm pretty sure it's A
Explanation:
coral skeletons are biocomposites (mineral+organics) or calcium carbonate
Which change is an environmental change that occurs rapidly?
forest succession
decomposition
volcanic eruption
tree growth
Answer:
Volcanic Eruption
Explanation:
(I also know because I took the quiz) The volcano is the one that rapidly changes. It can erupt any time.
Forest Succession is slower than a volcanic eruption. It might take years for the trees in a forest to grow and for the population of animals to get there. It has to be just right, it needs all the plants and animals for it to be a forest, well not all of it but most of it.
Decomposition is also slower than a volcanic eruption.
Tree growth takes a long time. It might not even be a full tree until years later. It also takes time and water.
Answer: volcanic eruption
Explanation:
if anyone needs the other answer here you go
the other answers will be on my quizlet
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