Answer:
igneous rock does not usually have a definite crystal shape
Explanation:
because it is formed from molten magma. after it is cooled and dried. anything caught by the molten magma retains it's shape after cooling
Forms across a plant cell during cytokinesis.
A. cleavage furrow
B. pinching in
C. cell plate
Answer: A. a ring of actin filaments forms at the metaphase plate. The ring contracts, forming a cleavage furrow, which divides the cell in two. In plant cells, Golgi vesicles coalesce at the former metaphase plate, forming a phragmoplast.
Explanation:
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Answer:
ty for helping me now ill help you
a
Explanation:
cytokensis is the physical process of cell division. It divides the cytoplasm of a parental cell into two different daughter cells.
In plants, a cell wall forms. Cytokensis occurs in mitosis and meiosis. The objective for cytokensis is to divide the parent cell into two daughter cells. So cytokensis in plants is when a cell wall forms in between the daughter cells. Plant cells have walls, so they CANNOT divide using a cleavage furrow. A cell plate forms across the cell during telophase.
In animal cells, cleavage furrow forms. This pinches the cell in half and forms two different cells.
provides protection and a space to move and breathe *
Umbilical cord
Amniotic sac
Amniotic fluid
placenta
pls help me brainlest for best answer
Answer:
Its A no hate If I am wrong :)
Is the ocean a carbon sink or a carbon source
Answer:
Explanation:
The Carbon CycleChanges to The Carbon CycleThe Ocean and CarbonBiological Pump
The ocean plays an important part in the carbon cycle. Overall, the ocean is called a carbon ‘sink’ because it takes up more carbon from the atmosphere than it gives up.Carbon dioxide from the atmosphere dissolves in the surface waters of the ocean. Some of the carbon dioxide stays as dissolved gas, but much of it gets turned into other things. Photosynthesis by tiny marine plants (phytoplankton) in the sunlit surface waters turns the carbon into organic matter
the ocean is a carbon sink
how does nonradom matting affect the gene pool
Answer:
I think it's, the nonrandom mating is defined solely in terms of departures from HW proportions for neutral alleles, without reference to phenotypes. The impact is measured in terms of genetic parameters, such as genetic variance, expected gene flow, and Δ F, assuming the infinitesimal model and mass selection.
Jill uses a magnet to pick up a nail. Then, she touches the nail to a paper clip and picks up the paper clip. What will most likely happen when she pulls the magnet away from the nail?
The paper clip will stay attached to the nail because the nail is now a permanent magnet.
The paper clip will stay attached to the nail because the paper clip is now a permanent magnet.
The paper clip will fall off of the nail because the nail was only a temporary magnet.
The paper clip will fall off of the nail because the nail is now magnetized in the opposite direction.
Answer:
C but see below.
Explanation:
e. The paper clip will likely fall off because it wasn't attached to the nail long enough to be magnetized.
The same answer would apply to the nail. It likely was not held onto the magnet long enough to pick up a magnetic force that would be strong enough to overcome the gravitational force pulling on the clip.
Of the four answers you have given us, I would agree with C. But as I've argued above, the real reason is likely there.
Answer:
C
Explanation:
Edge 2021
all of the following conditions helps preserve organisms as fossils EXCEPT A)quick burial by sediments B) hard parts. C) protection from scavengers. D) activities of microorganisms
Answer:
D) activities of microorganisms
Explanation:
CORRECT
How does reproductive isolation affect the gene pools of two or more populations?
Individuals in a species have genetic variation that can be passed on to their offspring
Answer: Genetic variation within a species can result from a few different sources. Mutations, the changes in the sequences of genes in DNA, are one source of genetic variation. ... As a result, the tree-colored moths are more likely to survive, reproduce, and pass on their genes.
Explanation:
2. Jellyfish are one of the oldest species on Earth. In what time period did they first appear? A. Precambrian Time B. Paleozoic Era C. Mesozoic Era D. Cenozoic Era
Answer:
A. Precambrian Time
Explanation:
Fossil evidence of jellyfish dates back to the Cambrian Period, 500 million years ago.
1 Vaccines have been produced to prevent and treat both tetanus and meningitis.
True
False
2 Tetanus is caused by polluted drinking water.
True
False
3 Tetanus can occur in crushing or deep wounds.
True
False
4 Meningitis may be transmitted from one person to another by:
water
sneeze
cough
soil
5 Meningitis most frequently affects:
adults
children
adolescents
women
Answer:
In immunology, an antigen is a molecule or molecular structure, such as may be present on the outside of a pathogen, that can be bound by an antigen-specific antibody or B-cell antigen receptor. The presence of antigens in the body normally triggers an immune response.
Answer:
1. true
2. false
3. true
4. sneeze, cough
5. children, adolescents
Explanation:
NERVOUS SYSTEM INFECTIONS
FULL QUIZ ANSWERS:
1. Tetanus is caused by polluted drinking water.
FALSE
2. Tetanus can occur in crushing or deep wounds.
TRUE
3. Communication for the senses and muscle coordination in the body is accomplished by the __________ system.
NERVOUS
4. Inflammation of the membrane linings of the spinal column or the brain is called ________________.
MENINGITIS
5. Meningitis most frequently affects:
CHILDREN
ADOLESCENTS
6. Muscle spasms and locked jaw, followed by convulsions, are symptoms of:
TETANUS
7. Vaccines have been produced to prevent and treat both tetanus and meningitis.
TRUE
8. Chlostridium tetani thrives near the surface of the skin.
FALSE
9. Why is tetanus associated with injuries which occur outdoors?
BACTERIA IN THE SOIL CAUSES TEANUS
10. Meningitis may be transmitted from one person to another by:
SNEEZE
COUGH
natural selection is an example of a mechanism of evolution. does this mechanism produce a change in individuals or populations? explain
Natural selection refers to the procedure where the species better amended to their surrounding appear to survive and generate more offspring. Natural selection refers to one of the mechanisms that make modifications in the frequencies of genes in populations and thus, it is the mechanism of evolutionary change.
However, the phenomenon of genetic drift and natural selection cannot take place unless and until there is a genetic variation, that is unless some individuals are genetically distinct from others.
9. A
is an example of an organism that performs
photosynthesis.
Help plz
Why are lab safety rules important? I’m currently doing an essay with minimum of 250 words. You don’t really have to do that but can y’all give me some facts/ideas to put in my essay? Thank you and good day <3
Answer: important because it helps make sure no one will get hurt
Explanation:
if there weren't lab rules then people could burn themselves or get severely hurt
Answer:
They keep you safe
Explanation:
They are important becasue they keep you safe while you are doing an expirement
If you rescue a snake and give them a home in your house will that cause them to not shed? And why!! Very important. Will mark brainless!!!
What 3 systems get put to work when feeding and how does each one work when you eat?
Answer:Digestive and muscular systems would be working together to chew food and work it down to the stomach to be digested. The digestive system and circulatory circulatory system would be working together to break food down and move nutrients to cells. The nervous system decides what to eat and when to chew.
Explanation:
2. How do gene splicing and gene therapy differ? How are they alike?
Gene therapy and gene splicing are separate but linked processes. A new organism can be created by cutting and recombining genetic material from two separate sources, a process known as gene splicing.
What is gene splicing ?It is a technique that scientists utilise in the lab to develop new organisms with desired features. On the other side, a healthy gene is introduced into the patient's cells during a medical process called gene therapy to treat diseases and disorders.
Gene splicing and gene therapy share certain similarities despite their distinctions. Both procedures entail the modification of genetic material, frequently derived from several sources, in order to produce the desired outcome.
The goal of gene splicing is the development of a new creature or its modification.that of an active organism. Treatment of a disease or disorder is the intended outcome of gene therapy. Both procedures also entail the manipulation of genetic material using specialised methods, such as recombinant DNA technology. Finally, for both methods to be effective, a good understanding of genetics is necessary.
Learn more about gene splicing at:
https://brainly.com/question/31075704
#SPJ2
Show are meiosis and mitosis different
Answer:
The purpose of mitosis is the creation of diploid somatic cells and the purpose of meiosis is the creation of haploid sex cells.
Explanation:
Mitosis takes place in somatic, or body cells, and meiosis takes place in gametes, or sex cells. The purpose of mitosis is growth and repair, while the purpose of meiosis is creating gametes with half the normal number of chromosomes and is for reproduction. Mitosis goes through Interphase, Prophase, Prometaphase, Metaphase, Anaphase, Telophase, and Cyokinesis once to produce two genetically identical diploid somatic daughter cells. Meiosis goes though that twice (Meiosis I and Meiosis II) to produce 4 genetically unique haploid gametes. It has stages (Prophase, Metaphase, Anaphase, and Telophase) such as Prophase I and Prophase II because meiosis occurs twice. Another difference is that mitosis happens throughout your life and meiosis occurs before females are born and throughout a males life.
Explain why each genotype in the table above has two letters.There are two chromosomes each with an allele. Each chromosomes came from each parent.
21.As mentioned in the video, the environment can also affect an organism's traits. The example of nourishment was used in the case for Spike, as this could affect his growth and size. This can also occur in humans. UV light was not mentioned in the video. How could UV light potentially affect an organism's trait? Provide one example.
Answer:
UV light can modify the DNA of a human being, provoking mutations that affect the traits. For example, exposure to the sun's UV rays affects the DNA of the skin cells, causing mutations that can lead to cancer.
Explanation:
An environmental factor that can affect humans traits is the exposure to UV light that the sun radiates. The DNA in our skin cells absorbs the UV rays. As a result, the DNA can suffer modifications that result in skin cancer. Also, the absorption of UV rays causes wrinkles since cell components are affected due to the accumulation of UV light.
Answer: UV light can modify the DNA of a human being, provoking mutations that affect the traits. For example, exposure to the sun's UV rays affects the DNA of the skin cells, causing mutations that can lead to cancer.
Explanation: An environmental factor that can affect humans traits is the exposure to UV light that the sun radiates. The DNA in our skin cells absorbs the UV rays. As a result, the DNA can suffer modifications that result in skin cancer. Also, the absorption of UV rays causes wrinkles since cell components are affected due to the accumulation of UV light.
PLEASE HELP!!!
List three factors that affect soil formation and explain “how” in 2 sentences each!
Which countries allow designer babies?
Answer:
Thus, Sweden became one of four countries that allow the production of designer babies. The others are Belgium, the United Kingdom, and the United States. In Spain, the first designer baby was born in Tenerife in 2005, although she was produced in the Chicago Reproductive Genetics Unit in 2004.
Explanation:
DNA strand: 5' GGC TAG ATC GGA TCA 3
mRNA strand:
Protein (amino acid chain):
Pls help
Which type of electromagnetic wave has the lowest frequency?
A. Ultraviolet
B. Visible light
C. Gamma rays
D. Microwaves
Answer:
D
Explanation:
1. Describe the relationships between the
cell cycle and cell differentiation and
how they maintain complex organisms.
A stick insect has body parts that look like sticks and are a similar color to the trees
they live in. How does this help the stick insect to survive?
Has anyone done this Sexual vs Asexual Reproduction before?
Answer:
Explanation:yes
Answer: for the genetic variation, the offspring gets a allele from each parent.
Explanation:
Yes
(GIVING BRAINLIEST!!)
A model of the water cycle was made by placing a heat lamp over a glass jar half full of water. Which part of the water cycle causes the water level in the jar to drop over time?
A) Collection
B) Condensation
C) Evaporation
D) Precipitation
A
evaporation.
Explanation:
Answer:
C. Evaporation
Explanation:
Hope this is helpful
Organize the steps of primary succession to describe how the empty rock
landscape transformed into mature forest communities.
First
1
Rock is broken down and converted into soil
N
Lichen and other pioneer species grown on the rocks
3
Small pine trees grow in the soil
4
Grasses and flowering plants grow in the soil
5
The glacier retreated, leaving barren only rock
6
Shrubs and small trees grow in the soil
7
::::
A climax community develops
Last
Answer:
A climax community develops
The glacier retreated, leaving barren only rock
Lichen and other pioneer species grown on the rocks
Rock is broken down and converted into soil
Grasses and flowering plants grow in the soil
Shrubs and small trees grow in the soil
Small pine trees grow in the soil
Explanation:
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Please can anyone help me ill make you the brainiest, I need help with these questions! please please please
1.How many moles of oxygen react with 10.5 moles of methane?
2.How many moles of methane react with 10.7 moles of oxygen?
3.How many moles of carbon dioxide are produced from 80 moles of methane?
4.How many moles of water are produced from 800 moles of methane?
5.How many grams of oxygen will react with 85 grams of methane?
Answer:
1.07 moles react
Explanation:
because it mass in gram is 10.7 and molar mass is 10 and if we divide answer is 1.07
Answer:
Science not a fan but 2 moles would be my guess
Explanation:
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