Seeds inside the closed vessel does not give new seeding ,why?
Answer:
It is not able to produce a new seedling as it requires sunlight and air to prepare its own food and the process of photosynthesis does not occur. So, the seed inside the closed vessel does not give new seedling.
Explanation:
Answer:
It is not able to produce a new seedling because it needs the sun and air to prepare it's own food and the process of photosynthesis does not occurs
Explanation:
Help me please!!!!!!!!!
Answer:i think its b
Answer:
B
Explanation:
See below, b represents
Options
water
glucose
oxygen
CO2
Answer:
CO2
Explanation:
CO2 is needed to produce glucose
What are some inherent traits of a lion
We have 13 different clotting factor proteins in our blood. Do you think hemophilia is controlled by one or multiple genes?
Hemophilia A and hemophilia B are inherited in an X-linked recessive pattern . The genes associated with these conditions are located on the X chromosome, which is one of the two sex chromosomes . In males (who have only one X chromosome), one altered copy of the gene in each cell is sufficient to cause the condition. Basically it's whatever you believe it is.
Do you think humans would be
as dominant if the dinosaurs
were still present?
Answer:
Probably not, as we might have evolved to become prey instead of predator
Answer:
i dont think so.
Explanation:
the dinosaurs would've already ate us, and crushed the cities. dinosaurs are too dangerous for us. especially the T-rex.
. Students decide to remove the litter from an abandoned park and plant trees. Which of the following observations provides the best evidence that the action of the students has had a positive effect on the health of the park ecosystem?
A. The number of human visitors decreases.
B.The level of yearly precipitation increases.
C.The number and diversity of animals increases.
D.The average daily high temperature decreases.
Answer:
c
Explanation:
Can viruses live through mutation and natural selection
Answer:
sure why not
Explanation:
as the virus mutates, it may increase, or lessen the chance for the virus to survive a battle against its host. like your regular living organisms (though keep in mind viruses are not considered living), some survive and some die due to natural selection and mutation.
Describe the 6 phases of developing a vaccine
Answer:
Exploratory stage
Pre-clinical stage
Clinical development
Regulatory review and approval
Manufacturing
Quality control
Explanation:
Internet
Explanation:
there are many stages to a vaccine
many come from ... developing symptoms
in which some case can come from
some quality control, pre-clinical control or even exploratory stage
Flowering plants and pollinators, such as bees, have adapted together over time in ways that enhance each other's survival. The bee obtains nectar from the flower How does the flower benefit from this relationship?
O It gains food
O
It is pollinated
O Its seeds are dispersed.
It receives growth hormones
HELP PLEASE!!!
Answer:
it is pollinated
............
Answer: it’s pollinated
Explanation:
i took the test lol
Caenorhabditis elegans is a species of soil-dwelling nematode (roundworm) that feeds on soil bacteria, including Bacillus thuringiensis.
a. True
b. False
Answer:
b. False
Explanation:
Caenorhabditis elegans is a well-known species which is widely used in genetic experiments (i.e., it is a model organism). C. elegans is a soil nematode that eats bacteria, but its survival depends on the ability to distinguish toxic from non-toxic ones. C. elegans cannot feed Bacillus thuringiensis because this bacterium produces a toxin Bt protein that damages its gut, thereby producing the death of this nematode. Interestingly, it has been proposed that Bt toxin pathways might be exploited for the design of new generation nematicides.
Which of the following is defined as the assurance of nutritional quality to ensure productie oliopinda
fetal programming
prenatal growth process
differentiation
genetic reassortment
Answer:
prenatal growth process
BRAINLIEST: In dolphins, to have spots on the skin is a recessive trait. One spotted dolphin and one solid gray dolphin have a baby spotted dolphin. Go through the following steps to figure out the genotype of the parent dolphins.
1) what are the POSSIBLE genotypes of the solid grey dolphin?
2) what is the genotype of the baby spotted dolphin?
Answer:
1) Ss
2) ss
Explanation:
Spots (recessive) - s
No spots (dominant) - S
So the possible combination to get a baby spotted dolphin may be: Ss and ss
Punnett Square:
| S | s |
s | Ss | ss |
s | Ss | ss |
So the genotype of the Solid gray dolphin might have been a dominant allele and a recessive allele, which is Ss.
Moreover the genotype of the spotted baby dolphin might me ss.
Which set of organs helps the human body get rid of waste?
A
skin, pancreas
B
kidneys, bladder
C
pancreas, small intestine
D
bladder, stomach
The University of Illinois has been conducting one of the longest selection experiments, begun in 1896 by C.G. Hopkins. Researchers have been selecting for high corn oil content (as measured in % dry mass). Researchers select those plants with the highest corn oil content, and use only those individuals to seed the next generation. Here is a portion of actual data from their experiment:
1899 mean oil content in entire population: 5.65% dry mass
mean oil content of selected plants: 6.30% dry mass
1900 mean of oil content in entire population: 6.10% dry mass
Calculate the heritability of corn oil content (% dry mass). For full credit, show your work, including any equations used.
Answer:
0.725
Explanation:
This type of question is a concept of Narrow-sense Heritability and Artificial selection used by plant breeds.
So, heritability = R/S
where;
R = response to selection
S = selection differential
S further implies the difference in mean oil content between base population & selected population.
S = 5.65 - 6.30 = 0.65% ( where the negative sign are not regarded)
R implies the difference in mean oil content between the offspring or population after implementation of selection and the base population.
R = 6.10 - 5.65 = 0.45%
∴
Heritability = R/S = 0.45% / 0.6%
= 0.725
Thus; the heritability in the oil content of corn in the given set of population = 0.725.
Describe how hibernation has helped bear species to survive.
write your answer in form of a claim, evidence, and reasoning statement.
1.Make a claim to answer the question(restate your question).
2.Give evidence to support your claim(my evidence is).
3.Use reasoning to explain how your evidence supports you claim(this shows).
ty please no scams brainliest also to the first person who answers and at least 5 sentence answer ty.
Answer:
Hibernation helps animals survive the changing seasons. Foods that bears eat, such as berries and flowers, are much less available during cold winter months. When they hibernate, bears enter a deep sleep. ... While they sleep, the bears can survive because their bodies live off of their stored fat or food.
During hibernation, the animal’s body temperature, heart rate and breathing rate all drop to significantly lower levels. Animals do this to survive the winter because the weather is cold and food is scarce. It is advantageous because these animals can quite literally shut themselves off for weeks at a time rather than try and survive through harsh weather conditions.
While many people think bears are hibernators, they actually participate in a similar, though not exact, practice. Instead of hibernating, bears fall into a deep sleep called torpor. During torpor, heart rate and breathing rate decreases, body temperature reduces slightly and bears do not eat or release bodily waste. Bears can sleep more than 100 days without eating, drinking, or passing waste!
Bears sleep in dens that they make themselves, as well as in hollow trees, caves and dens built by other bears. A den can be built in 3–7 days, however, the timing of den building varies from bear to bear. While some bears build their dens months before hibernation season, others choose to excavate their dens.
These animals can dramatically drop their body temperature to below freezing—salty body fluids work to prevent tissue crystallization in particularly cold temperatures.
So really, animals that are true hibernators don’t actually sleep through the entire winter.
The urea produced by their fat metabolism is broken down and the nitrogen is re-used by the bear to rebuild protein.
Explanation:
Leaves of a healthy potted plant were coated with Vaseline to block stomata. Will this plant remain healthy for long? State three reasons for your answer.
➜ If waxy coating is made on the surface of leaf, loss of water in the form of water vapour does not take place. Even the gaseous exchange will not take place. So, photosynthesis will either be reduced or will not take place.
The plant will not remain healthy for long because:
[i] Exchange of gases will not take place.
[ii] Photosynthesis will either be reduced or will not take place due to lack of CO2.
[iii] Transpiration will not take place, so there will be no mechanism of cooling in hot weather.
What is an antiviral drug? Why is it different from an antibiotic?
Answer: Unlike most antibiotics, antiviral drugs do not destroy their target pathogen; instead they inhibit its development.
Which three organ systems work together to take in oxygen and other
nutrients and deliver them to an animal's body cells?
A. Respiratory, because it takes in gases from the external
environment
B. Circulatory, because blood absorbs nutrients and carries them to
other cells
c. Nervous, because it controls the body functions and responses to
stimuli
D. Digestive, because it breaks down the nutrients in food into
substances that can be used by cells
Answer:A, B and D
Explanation:Respiratory takes in oxygen and digestive absorbs nutrients from the food while the circulatory deliver those through the entire body.
A B D im on the exam
3. The power produced by an electric motor is 400W. How long will it take the motor to do 10,000 J of work?
Answer:
25 seconds
Explanation:
Energy = Power × Time
Rearrange the equation, since we have to find time.
Time = Energy ÷ Power
Time = 10000 ÷ 400
Time = 25 s
10. What is an entomologist?
Answer:
An entomologist is a person who studies, or is an expert in the branch of zoology. (A branch in zoology concerned with insects.)
Explanation:
Check all of the following statements that represent an example of predation. Check All That Apply A deer eats the leaves of a tree.A deer eats the leaves of a tree. Barnacles grow on various marine animals.Barnacles grow on various marine animals. A snail eats a clam.A snail eats a clam. A fungus decomposes dead organic matter.A fungus decomposes dead organic matter. A tree absorbs inorganic nutrients from the soil.A tree absorbs inorganic nutrients from the soil.
Answer:
- A deer eats the leaves of a tree.
- A snail eats a clam
Explanation:
Predation is one of the mode of feedings used by certain organisms. It is a relationship between two organisms in which one of the organisms called PREDATOR kills/harms and feed on the other organism called PREY.
According to this question, the two examples that represent predation are as follows:
- A deer eats the leaves of a tree; the deer, which is the PREDATOR feeds on a tree plant, which is the PREY.
- A snail eats a clam; the snail is the PREDATOR in this case and it harms the clam (PREY) by killing and feeding on it.
Answer:
A deer eats the leaves of a tree.
A snail eats a clam
Explanation:
E2023
5. Most Sex-linked disorders like hemophilia and colorblindness are located on *
Answer:
Either the X or Y chromosome (the sex chromosomes)
Explanation:
Color blindness, hemophilia and muscular dystrophy are three x-linked phenotypes.
What is a pill bugs habitat
Answer:
The pillbug's main habitat is under mulch, fallen leaves, and rocks. Pillbugs are nocturnal and require humid conditions during the day. Pillbugs are generally found in soil with sowbugs, millipedes, and earthworms. Their preferred soil habitat is composed of organic matter and has a neutral to alkaline pH.
An individual with two different alleles for the same gene is
called
Answer:
an individual with two same alleles genes is called a heterozygous
There's no such thing as "solid ground" agree or disagree
anyone wanna zoooom
ʕ´ڡ｀*ʔʕ´ڡ｀*ʔʕ´ڡ｀*ʔ
Answer:
No Busy. Sorry.
Explanation:
In the fantastic Jillalope, the offspring of a true-breeding black parent and a true-breeding white parent all appear gray. When these gray offspring are crossed among themselves, their offspring always appear in a ratio of 1 black : 2 gray : 1 white. Upon close examination of the coats with a magnifier, each hair of a gray animal has closely-spaced alternating black spots and white spots, but no gray spots. What is the mode of inheritance
Answer:
Co-dominance
Explanation:
Due to technical problems, you will find the complete explanation in the attached files
Action Potential: Relative refractory period
In a neuron, there is a period of time called the absolute refractory period where it is impossible for an action potential to
begin. This corresponds to the change in membrane potential from +30 to -70 mV, or the repolarization phase. Towards the
end of the repolarizing phase, there is a relative refractory period where it is difficult, but not impossible, for another action
potential to begin. Using the time slider function, which of the following segments in the neuron would correspond to a
relative refractory period?
A second action potential can be triggered during the relative refractory phase, but it will need a stronger stimulus to do so than the first time. Refractory times are brought on by the inactivation gate of the Na+ channel.
What Action Potential related to Relative refractory period?The axon has a tougher time producing successive action potentials during this time period, which is referred to as the refractory period, as a result of these transient alterations.
As a result, the refractory period restricts the quantity of action potentials that a certain nerve cell can generate in a given amount of action potentials time.
If enough powerful stimuli are applied to the neuron after the absolute refractory time, Na+ channels start to recover from inactivation and the neuron may respond once again by generating action potentials.
Therefore, A stimulus that is stronger than usual is required to generate neuronal activation during the relative refractory period.
Learn more about Action Potential here:
https://brainly.com/question/7277845
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Which circulation ensures proper levels of nutrients in the blood for newborns through adults?
а a
cardiac circulation
b
fetal circulation
С
hepatic portal circulation
d
pulmonic circulation