Answer:
The correct answer is - chromosomes align at the spindle equator.
Explanation:
Chromosomes move and align at the spindle equator during the metaphase stage of mitosis and other given events take place during the anaphase stage of the mitosis cell division. Metaphase is the second phase of the M-phase of mitosis division whereas anaphase is the third phase.
The metaphase is characterized by the alignment of the chromosomes at the equator whereas the anaphase is separating the chromosomes pulled towards the poles and division of centromeres.
What is an example of an event that can compromise an ecosystem?
1.seasonal climate change
2.seasonal dry period
3.d eveloping land around cities
4.high temperatures
Answer:
seasonal climate change
Explanation:
based on the climate can vary whether or not the animal can adpat to live in that ecosystem. take polar bears for example. scientists say that polar bears won't be able to adapt to climate change bc it's changing so quickly.
hope this helps! have a fantastic day/night
An example of an event that can compromise an ecosystem is seasonal climate change.
What is an ecosystem?An ecosystem is a place where all animals and plants, biotic and abiotic factors live together interdependent to each other.
There are different types of ecosystem:
Terrestrial ecosystemOcean ecosystemDesert ecosystemThus, the correct option is 1. Seasonal climate change.
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Which sections are part of a career plan? Select all that apply.
career definition
career requirements
current status
short-term goals
intermediate goals
economic obstacle
Answer:
career definition
career requirements
current status
short-term goals
intermediate goals
economic obstacle
Explanation:
Answer:
career definition
career requirements
current status
short-term goals
intermediate goals
economic obstacle
Explanation:
What is the main adaptive advantage of the C4 and CAM photosynthesis strategies over C3 photosynthesis?
a.They make it possible for the plant to use the Calvin cycle during the day.
b.They allow the plant to synthesize glucose without CO2.
c.They allow the plant to hold its breath and still perform photosynthesis.
d.They allow the plant to synthesize glucose under hot conditions.
Answer:
D. They allow the plant to synthesize glucose under hot conditions.
Explanation:
C4 and CAM photosynthesis strategies allow for plants to produce glucose in hot and dry conditions.
Plants such as cacti, which live in hot conditions, have the advantage from their C4 and CAM systems.
In contrast to C3 photosynthesis, C4 and CAM systems allow plants to get more CO2 from the air and help them conserve water.
This then allows them to efficiently create glucose with the CO2.
So, the correct answer is D.
Answer:
D. they allow the plant to synthesize glucose under hot conditions.
Explanation:
WHO IS RESPONIBLE FOR THE REACTIONS OF CELLULAR RESPIRATION
Answer:
Mitocondria is responsible for the reactions in cellular respiration.
Explanation:
Mitochondria have an important role in cellular respiration through the production of ATP, using chemical energy found in glucose and other nutrients. Mitochondria are also responsible for generating clusters of iron and sulfur, which are important cofactors of many enzymes.
land where it is possible to grow crops is called
A.organic land
B.agricultural land
C.vegetative land
D.All of the above
The process by which natural variation among organisms that make them best adapted to their environment live and reproduce, therefore passing on to their offspring the genetic qualities best suited to that environment
variation
variation
adaptation
adaptation
natural selection
natural selection
Evolution
Answer:
Natural Selection
why groups of animals are found on some islands but not others?
Answer:
Wilson has created the theory of the biogeographic nature of the island, which predicts that the number of species on the island depends on the balance between colonization, the evolution of the novel island species, and extinction.
Explanation:
A new DNA sequence containing 596 species of terrestrial birds from 41 island chains (archipelagos) around the world has been assembled by the researchers. The data combined sample data from their own field visits, research, and field samples from GeneBank colleagues. This information was utilized to build and employ a dynamic model that predicted international relationships that regulate biodiversity variation in their novel analysis approaches. In that, they confirmed two main components of MacArthur and Wilson's initial biogeography theory on the island.
The understanding of biodiversity on the island is important to conservation but also has implications beyond that – when imposing barriers to species dispersal it could enable us to assess better the effects of human activities, and it can contribute to a wider understanding of biodiversity around the globe.
Evolution is a result of–
a. natural selection.
b. species not adapting quick
enough.
c. competition for resources.
d. harmful mutations.
Answer:
c
Explanation:
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What is the function of the outer covering in fish?
1 Protects the fish from their environment
2 Supports the body and internal organs
3 Used for reproduction
4 Works with the muscles to allow movement
Answer:
Your answer is A,
Explanation: D can be argued for as well but those are the secondary functions of scales. Their main function is to protect the fish.
Many fish contain an outer covering of scales. Scales protect fish, much like a suit of armor. All fish have a dirty covering of mucus. This substance permits the fish to swim through the water with very little yawn and also makes it hard for other organism to adhere to the fish.
What are the functions of the parts of a fish?The dorsal and ventral fins mainly help fish to not move over onto their flanks.
The caudal fin is the main fin for propulsion to move the fish forward. The coupled fins help with steering, stopping and hovering.
Thus option "A" is correct, Protects the fish from their environment.
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Based on your observations, what do warm fronts seem to have in common?
Answer:
Warm fronts are characterized by low cloud cover and higher temperatures.
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I NEED HELP ASAP ITS DUE TODAY AT 11:59 PLEASE HELP MEEE
Answer:
4.)chromosomes
2.)crossing over
1.)opposite
3.)phenotype
9.)recombinant
8.)genotype
5.)independent
6.)same
Explanation:
Which of the following are major contributors to the greenhouse effect? CHOOSE ALL THAT APPLY 1.enzymes 2. deforestation 3.carbon dioxide 4.acid rain 5.Ophotosynthesis
Answer:
Escribir en español por favor.?
which of the following human cells has a ploidy number of n?
A uterine
B sperm
C bladder
D lung
Answer:
Sperm
Explanation:
Human diploid cells have 46 chromosomes (the somatic number, 2n) and human haploid gametes (egg and sperm) have 23 chromosomes (n).
Which limiting factor is this adaptation a response to
Answer:
Answe
Explanation:
A limited factor that causes adaptation is the loss of habitat,food,or new species.
A fossil of an extinct dinosaur is found, and the anatomy of the fossil shows similarities to that of a bird.
What possibly explains these similarities?
A. This is purely chance and isn't significant.
B. The extinct dinosaur and modern bird share a common ancestor.
C. All dinosaurs evolved into birds and that's why there aren't any dinosaurs alive today.
D. Dinosaurs choose to fly, and evolved into birds to escape predation and capture food.
Answer:
B sounds like a sensible choice
Explanation:
The extinct dinosaur and modern bird share a common ancestor. So the correct option is B.
What are evolutionary relationships?
Systematics, taxonomy, phylogenetics, and evolution are the four approaches used to investigate evolutionary connections. The branch of science known as systematics is concerned with classifying species and figuring out their relationships. It has two primary branches that may be separated:
Organisms are classified, given names, and grouped in taxonomy. A population, species, genus, or higher-level grouping like a family, order, class, phylum, kingdom, or domain can all be considered as a group or taxon. The word taxon is pluralized as taxa. The determination of evolutionary links or patterns of descent of species is via the study of phylogenetics.
The species of living things that exist now are all descendants of earlier ones. This is the result of evolution or merely time-related change. Branching evolutionary trees can be used to illustrate the evolutionary links between ancestors and their offspring. An evolutionary tree shows which ancestors gave rise to which descendants, much like your family tree does.
Therefore the correct option is B.
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Increasing sea surface temperatures should...
Lower the amount of dissolved oxygen in the ocean, depriving many
invertebrate animals of oxygen necessary to live.
Lower the amount of sea ice in polar areas. This will warm the water,
decreasing the abundance of primary producers and the number of
organisms that eat these producers.
Increase the temperature difference between the upper and lower parts of
the ocean, making upwelling less likely to occur. This will decrease ocean
nutrient levels, affecting the number of primary producers.
Raise water temperatures above the tolerance limits for many aquatic
organisms in tropical areas, increasing stress on these species.
Answer: they are all correct so select all
Explanation:
bc i did it and bc i said so
HELPPPP
We have half of our genetic material from our mom and half from our dad
agree/disagree
Answer:
Agree. We Get One Chromosome from each Parent
Explanation:
i need some help on this.............
Answer:
a) Beaver-dam buildings → (iii) Pond floods
b) Forest fire → (i) New plants can grow because of an increase in sunlight on the forest floor
c) Lack of rainfall → (ii) Zebras migrate farther to find water holes
d) Invasive water plants arrive → (iv) Sunlight is blocked for native seagrasses
e) Grasshopper outbreaks → (v) Crops are wiped out along the prairie
f) Coyote disease decreases the population → (vi) Mice population explodes
Explanation:
a) Beaver-dam buildings → (iii) Pond floods
This is an example of how some species might produce damages in ecosystems. Beavers are known for their dams, where they hide from predators, find shelter, reproduce, and feed. With time, and as the beaver population grows, these dams get bigger each time. These animals keep cutting down trees and covering some wider areas that were inhabited previously by other species. The landscape changes, these areas get flooded permanently, most vegetation dye, the soil properties get altered, and just a few species can keep living there. The ecosystem changes.
b) Forest fire → (i) New plants can grow because of an increase in sunlight on the forest floor
This is an example of biological succession. Stable forests characterize as having big old trees that compete for light developing big canopies at heights. Poor light reaches the ground and allows some smaller species to grow. When a fire occurs, some of these trees might fall or disappear. These fire events open windows in the forest through which sunlight directly reaches the ground. Many new species can germinate and grow. There occurs a renovation of vegetable species in the forest and the consequent renovation of other living forms.
c) Lack of rainfall → (ii) Zebras migrate farther to find water holes
It is not unusual that some species need to migrate looking for food or water. In certain areas, seasonal differences are very sharp, and while some periods characterize as producing plenty of food and water, some others characterize as lacking them, dry seasons especially. Animals develop different strategies to face these moments. Zebras need to migrate to find a new source of water to ensure proper hydration.
d) Invasive water plants arrive → (iv) Sunlight is blocked for native seagrasses
A very known global environmental problem is the damage caused by invasive species. In a few words, exotic species arrive in a new area out of their native distribution range, establish, grow, adapt, and reproduce. These exotic species turn into invasive species when they overgrow, sharply increasing their reproductive rate. At this point, interaction with native species becomes harder, competing for resources such as space, light, food, shelter, water, among many others. Invasive species become such a good competitor that end by displacing native species. In the exposed example, invasive water plants arrive, and their population overgrows. They compete for light with native seagrasses and end by blocking it for them.
e) Grasshopper outbreaks → (v) Crops are wiped out along the prairie
This is an example of the prey-predator relationship. In this case, grasshoppers are the predators, and crops are acting as the prey. Whenever one of the population increases in size, the other one follows this increase, causing the decrease of the first one. When the first population decreases, the second one also decreases. In this example, grasshopper outbreaks, meaning an increase in predation rate over crops. Many more individuals are feeding on the crops, causing more damages to the plants´ population. Crops do not have enough time to recover, so they are wiped out.
f) Coyote disease decreases the population → (vi) Mice population explodes
This is also an example of the prey-predator relationship. In this case, coyotes are the predators, and mice are acting as the prey. As coyotes are affected by the disease, which causes a decrease in their population size, mice seem to be favored, as they are not predated. They have enough time to recover as a population and increase in size. Coyotes´population decreases in size, so there are many fewer individuals feeding on mice, and hence, the mice population increases very fast. It explodes.
What are the sub-phases of interphase and what occurs in each phase?
Answer:
Phases: G1, S phase and G2
Functions:
- G1: cell grows
- S phase: DNA replication
- G1: organelle replication and increase of the cytoplasmatic proteins
Explanation:
Interphase is the phase of the cell cycle in which the cell prepares for its division and ensures that each daughter cell has the correct required materials for cell survival (i.e., a correct amount of DNA, organelles, proteins, etc). Interphase can be divided into three subphases: Gap 1 (G1), Synthesis (S), and Gap 2 (G2). During G1 phase, the cell increases its size and replicates its organelles as necessary. During S phase, the cell growth continues, the DNA of the cell is replicated and rapidly assembled into chromatin. During G2 phase, the cell increases its cytoplasmatic content producing molecules it still needs to divide (e.g., essential M-cyclin molecules) and replicates its organelles (e.g., mitochondria in animals and chloroplasts in plants).
When a Pp-genotype plant is bred with a pp-genotype plant, what percentage of the offspring is likely to have white flowers?
Decomposers like mushrooms and worms get energy by *
1 point
producing their own food
breaking down dead organism
eating grass, fruit and seeds
absorbing carbon dioxide from the air
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what gene combination will have 50% chance of occurring if two heterozygous black and chickens are mated 
please answer!!
Hurry!!! Timed!! Do NOT answer with a link!!!
Which statements describe gene therapy? Check all that apply.
A. It cures all cases of cystic fibrosis.
B. It involves the modification of DNA. C. It is easy to apply to all cells affected by the disorder.
D. It attempts to replace a mutated gene with normal DNA. It does not always cure patients who use it.
Answer: B, D
Explanation:) edge 2022
What is the name of the process that will move molecules into the cell?
Answer:
endocytosis is also called phagocytosis.
Explanation:
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Answer:
It is possible for large molecules to enter a cell by a process called endocytosis, where a small piece of the cell membrane wraps around the particle and is brought into the cell. If the particle is solid, endocytosis is also called phagocytosis.
Explanation:
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How do i solve this problem?
What are the correct answers?
Answer:
please I can't see the words
It rains a lot in the United Kingdom because of
The landforms indicated by the arrows in the image are common features off the coast of Mississippi. What are these features?
A)
coral reefs
B)
barrier islands
9
continental shelf
D)
submerged mountains
Answer:
b) barrier islands
Explanation:
I looked up Mississippi barrier islands and they were a thing.
Help me! Thanks 15 points. URGENT
Answer:
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Answer:
Debbie
Explanation:
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