what is the cocoon in the lifecycle of silkworm?
Answer:
A cocoon is a protective casing that protects and shelters the silkworm while its transitioning from predators and other threats. Within the cocoon the silkworm transitions into a pupa, the pups is the stage between the larvae and adult moth. After two weeks the pupa finishes it's transition into a moth.
Maintaining safe water for drinking is an important goal for municipal water supply strategy. One of the last step
in drinking water treatment includes disinfection, a process that is used to
O A. remove chlorine from water
O B. kill waterborne pathogens
O C. add iodine to prevent goitre
O D. remove mercury water
What are the three main parts of the nervous system
Answer:
brain, spinal cord, and nerves
Explanation:
you could be meaning something else but this is what i was taught in anatomy
Answer:
They are the: Central nervous system,
Peripheral nervous system,
Automatic nervous system.
When a cold Front is approaching, what happens?
A. warm air is pushing under cold air causing humid weather and lower temperatures
B. warm air rises, cools, and causes rain and thunderstorms abruptly
C. warm air is pushing under cold air causing humid weather and higher temperatures
D. Cold air is pushed over warm air causing rain and thunderstorms
Answer:
B
Explanation:
i had that question
Can someone please help me
How does longitudinal binary fission differ from other forms of binary fission?
A. It creates four daughter cells instead of two.
B. It creates daughter cells that are mirror images of each other.
C. It only occurs in amoebas and paramecium.
D. Daughter cells are created, but over a longer period of time
Asexual reproduction of organisms normally results in new organisms that contain cells with
Answer:
Explanation:
cell that contains two complete sets of chrom ... reproduction of diploid 0rg~~-ms normally results in new 0rga~-~~ms that ... what would most likely happen if miis was not accompanied by cytoplasmic division .
Answer:
the same number of chromosomes found in the cells of the parent
Explanation:
Plants have low energy needs as compared to animals. Explain.
➜ Plants do not move. In a large plant body there are many dead cells like schlerenchyma which provide strength to the plant but do not perform any cellular function. As a result they requires less energy. Animals, on the other hand, need energy for different activities like movement or search or food. So, they require more energy.
➥ Plants have low energy needs as compared to animals because they do not move. Moreover, in a large plant there are many dead cells like sclerenchyma because of which they also need less energy.
How does the support structure of echinoderms differ from that of arthropods?
will give brainliest
Answer:
I would say the main difference is their covering. Arthropods have an exoskeleton, which protect their soft bodies while echinoderms have living endoskeletons. Overall, arthropods are more closely related to nematodes than echinoderms.
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Biologists refer to the number of chromosomes with an "#n". For example, 1n for one copy of chromosomes and 2n for two copies. How else can this be expressed?
Answer:
haploid/diploid
Explanation:
The number of chromosomes can also be expressed as haploid or diploid, instead of 1n for one copy and 2n for two copies.
The haploid number of chromosomes also refers to a copy of the chromosomes or half of the genome of organisms while the diploid number of chromosomes refers to the double or complete set of chromosomes in the genome of organisms.
So, in other words: n = haploid and 2n - diploid.
4
A neurone is a type of specialised animal cell.
(a) (i) Neurones develop from unspecialised cells.
State the name of these unspecialised cells.
Answer:
Stem cells
Explanation:
Stem cells are immature or unspecialized cells
Neurons develop from unspecialized cells and unspecialized cells are stem cells.
What are the functions of stem cells?
Embryonic stem cells are pluripotent stem cells derived from the inner cell mass of a blastocyst, an early-stage pre-implantation embryo. Human embryos reach the blastocyst stage 4–5 days post fertilization.
Stem cells are the body's raw materials — cells from which all other cells with specialized functions are generated. Under the right conditions in the body or a laboratory, stem cells divide to form more cells called daughter cells.
The cells of the bone marrow produce all of your healthy blood cells, including red blood cells, white blood cells, and platelets.
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Question 20 of 30
If a scientist's data are contaminated, what is the best course of action?
A. The scientist should restart the experiment at a step prior to
contamination.
B. The scientist should draw conclusions based on the contaminated
data
C. The scientist should continue with the experiment and hope for
the best.
D. The scientist should change the hypothesis to take the
contamination into consideration,
Answer:
A. The scientist should restart the experiment at a step prior to
contamination.
Explanation:
Please Help
how did the investigators confirm the suspect that killed the mission director?
Gattaca Movie Question
Explanation:
why u want to know why u disturb ur mind by things which are already written in books
what are the bases found in DNA
The three arrows in the diagram each represent a process known as?
(1) mitotic cell division
(2) meiotic cell division
(3) fertilization of gamete cells
(4) differentiation of tissues
Answer:B
Explanation:
The stain used for staining the muscle slide is
(a) safranin. (b) acetocarmine. (c) iodine. (d) methylene blue.
Answer:
a is used in rare cases mostly for cartilage detection b is used for acid and c is used for starches blue is used to see life and if you're doing like a cotton swab of muscle then this is the answer
Explanation:
(HELP) what types of elements that bond with ionic and covalent bond.
please answer the question in the picture if you know the answer and thxxx :) :) :)
The dangers of electrical shock can vary depending on the situation. Which of
the following would be the most dangerous (most likely to get a nasty shock!) ...
Answer:
Water
Explanation:
what is the functions of glucose in Living Organism
Answer:
Its used as energy for the cell
IF YOU WANT POINTS HERE YOU GO!!! ANSWER THE QUESTIONS CORRECTLY AND I WILL MARK BRAINLIEST!!! ON THE THIRD PICTURE, ANSWER THE HIGHLIGHTED PARTS. BE SURE TO READ THE DIRECTION CAREFULLY!!!!!!!!!
There are no carriers for Huntington's Disease -- you either have it or you don't. With this in mind, is Huntington's disease caused by a dominant or recessive trait?
a) dominant
b)recessive
c)It cannot be determined
d)It varies depending on whether an individual has one or two copies of the allele
When warm air cools, it
rises
creates prevailing winds.
loses the ability to hold water vapor.
gains the ability to hold water vapor.
loses the ability to hold water vapol
HELP!!!!! 50PTS!!!!!!
Most Swiss starlings produce four to five eggs in each clutch. Starlings producing fewer or more than this have reduced fitness. Which of the following terms best describes this situation? (3 points)
The bottleneck effect will result in a small gene pool with little genetic diversity.
Directional selection will happen because the population individuals will be unable to adapt, leading to extinction.
Disruptive selection will result in the population of birds' risk decline, due to reduced number of eggs.
Genetic diversity allows for birds to produce an ideal number of eggs, which leads to stabilizing selection. I think is D
Answer:
D: genetic diversity allows for birds to produce an ideal number of eggs, which leads to stabilizing selection.
Explanation:
Genetic diversity allows for birds to produce an ideal number of eggs, which leads to stabilizing selection. The correct option is D.
What is genetic diversity?The spectrum of various inherited traits inside a species is referred to as genetic diversity.
There would be many individuals with a wide range of different traits in a species with high genetic diversity. For a group of related species to adapt to changing environments, genetic diversity is mandatory.
Genetic diversity aids the populations to adapt to altering environments. More variation boosts the likelihood that some individuals in a population will have allele variations that are suited to the environment. Those people are more likely to survive and have children with that allele.
Birds can produce an optimal number of eggs due to genetic diversity, which leads to stabilizing selection.
Thus, the correct option is D.
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In cats, the allele (B) produces black color but (b) produces a yellow color. These alleles are incompletely dominant to each other. A heterozygote produces a tortoise shell color. The alleles (B) and (b) are sex-linked as well. Cross a tortoise shell female with a yellow male.
A.vWhat percent of their offspring will be yellow?
B. What percent of their offspring will be black?
C. What percent of their offspring will be tortoise shell?
D. Why is it impossible to have a tortoise shell male offspring?
Answer:
a. 50%
b.25%
c. 25%
d. Why is it impossible to have a tortoise shell male offspring? the x chromosome, a male can only have one copy of the allele - either B. orb, not both!
Explanation:
Alleles can be referred to as alternate forms of a gene. Incomplete dominance refers to two true-breeding parents crossed to give an intermediate phenotype.
The allele (B) produces black color but (b) produces a yellow color. A heterozygote produces a tortoise shell color (Bb)
Cross a tortoise shell female with a yellow male.
Bb x bb
Bb Bb bb bb
c. Bb --- 50% tortoise shell color
a. bb --- 50% yellow color.
b. No black -- 0%.
d. The males offspring cannot be tortoise shell because they have just the one X chromosome on which this gene resides. So they are either black or yellow.
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ovaries and testis are also called
Answer:
reproductive organs...hope it will help you
HELPPP
HURRYYYYYYYYYY
Answer:
The results of restoration of this kind can include improved habitats for fish, birds and other wildlife, protection against flooding, better water quality, enhanced recreational opportunities, and increased economic opportunities through activities such as commercial fisheries and tourism.
Explanation:
Help me please will mark
Answer:
C. predation
Explanation:
The limiting factor that is being displayed when a fox chases a pika is predation.
Limiting factors can be referred to as those features in the environment which actually leads to the limitation in the growth, distribution or availability/abundance of an organism or population of organisms in an ecosystem.
In the predation limiting factor, as the population of the prey decreases, the population of the predator starts to decrease as well. In other words, we can say that one factor limits the growth of the other factor.
Which statement(s) are true about mutations? (select all that apply)
a. They can be neutral
b. They are only heritable if they occur in gametes
c . They are always heritable
d. They can be beneficial
Answer:
a, c, d,
Explanation:
they are more than genetic, and with that said, also cancels out b
15 points!
What are the independent, dependent and controlled variables in the following investigation?
-Mayra tested three brands of conditioner to see which made her hair feel softest.
Answer:
ind: type of conditioner used
dep: how soft the hair is
controlled: type of shampoo used
Explanation:
ind- the variable that the person doing the experiment chages
dep- the variable that changes due to the change in the ind variable
cont-doesn't change