early improvements to microscopes allowed some scientists to view cells and eventually develop what?
During which phase of mitosis do the spindle fibers help to pull the
chromosomes to the center of the cell, where they line up?
O A. Metaphase
O B. Prophase
O C. Telophase
O D. Anaphase
Which statement is true about DNA base pairing rules?
A- cytosine can pair with guanine only
B- adenine can pair with cytosine only
C- Adenine can pair with thymine or cytosine
D- cytosine can pair with Adenine or guanine
Pioneer species are the first species
to appear after a disturbance. What
is one significant characteristic of
pioneer species?
A. They are not adapted to their surroundings.
B. They are very tolerant of extreme conditions.
C. They are the end product of secondary
succession.
Which of the following mutations would be the LEAST likely to have a harmful effect on an organism?
19. An ectotherm is also called a a. thermoregulator. b. thermoconformer. c. homeotherm. d. poikilotherm.
Answer:
An ectotherm can also be called a Poikilotherm.
:)
how might the shape of a muscle cell be related to its function
Answer: The muscle cells long oval shape helps it reach across to pull on its neighboring cells, while also cimpressing into a circular shape when the fibers contract. This it take up an optimal amount of space while not make the cell bulge in an uncomfortable and awkward way.
Explanation:
please help :( How are the steps of cellular respiration different when it is anaerobic respiration?
Answer: HEYYYY also if I’m correct anaerobic respiration doesn’t need oxygen maybe I’m wrong id.k
Explanation:
A small inflamed elevation filled with bacterial fluid and pus and appear red and cloudy or white is known as a: Select one: a. milia b. pustule c. cystic acne d. seborrhea
Answer:
C. Pustule
Explanation:
I could really use some help so pls be my guest
Answer:
B.
Explanation:
Mitosis produces two diploid (2n) somatic cells that are genetically identical to each other and the original parent cell, whereas meiosis produces four haploid (n) gametes that are genetically unique from each other and the original parent (germ) cell.
Answer:
I already said it is 2 number!!!
Three kinds of _________ molecules carry out genetic instructions for the production of proteins?
Which type of curve?*
exponential
logistic
Answer:
Answer: The different types of curves are Simple curve, Closed curve, Simple closed curve, Algebraic and Transcendental Curve
How is endosymbiosis a beneficial process?
Answer:
It has deeply impacted the evolution of life and continues to shape the ecology of countless species.
Explanation:
how does a cystoplasm’s structure relate to its function
All matter is composed of very small particles called:
Answer:
Atoms
Explanation:
HELP PLS!!!!!!!!!!!!
Beaches are monitored to protect public health. Waterborne pathogens can cause illnesses. Which of the following is not a common type of pathogen at the beach?
Bacteria
Protozoa
Viruses
Worms
ALL these microorganisms can represent common types of pathogens at the beach. In consequence, it is imperative to take precaution measures to avoid infections.
The sand at the beach may contain dog feces, which is known to transport Toxocara canis, a parasite roundworm able to infect humans.
Moreover, samples of beach sand may also contain different types of pathogenic bacteria (e.g., Staphylococcus species, E. coli, Enterobacteriacea, etc) and viruses (e.g., enteroviruses, hepatitis A, Norwalk viruses, reoviruses, rotaviruses, etc).
In consequence, it is imperative to wash hands with soap and water when touching beach sand that is suspected to be contaminated.
Finally, marine water may also be contaminated with different zoonotic protozoa such as, among others, Giardia, Cryptosporidium and Toxoplasma.
Learn more in:
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Answer:
The correct answer is worms.
Explanation:
Yes, all of these can be found at the beach, but worms are not common. Also, I took the test lol!
Although scientists do not know the exact origin of eukaryotic cells, the ______ theory does explain the origin of the mitochondria and chloroplasts.
Explanation:
The Endosymbiotic Theory states that the mitochondria and chloroplast in eukaryotic cells were once aerobic bacteria (prokaryote) that were ingested by a large anaerobic bacteria (prokaryote). This theory explains the origin of eukaryotic cells.
What level of protein should a basketball player in the off-season trying to gain muscle mass consume
Answer: 2.5-3.o grams per body weight
Explanation:
where is earth's magnetic north pole?
Answer:
The north magnetic pole is a point on the surface of Earth's Northern Hemisphere at which the planet's magnetic field points vertically downward (in other words, if a magnetic compass needle is allowed to rotate in three dimensions, it will point straight down)
Explanation:
There is only one location where this occurs, near (but distinct from) the geographic north pole. The geomagnetic north pole, a related point, is the pole of an ideal dipole model of the Earth's magnetic field that most closely fits the Earth's actual magnetic field.
The Earth's magnetic pole is situated at west of the Ellesmere Island in northern Canada at the geographical location of 81°18′N 110°48′W.
What is the Earth's magnetic pole?The generation of the Earth's magnetic field occurs deep within the Earth's interior, in a layer which is known as the outer core to be more precise. Here, the convective energy from the slow-moving molten iron is converted to the electrical and magnetic energies.
The north magnetic pole of the Earth moves over time according to the magnetic changes and flux lobe elongation in the Earth's outer core. In the year 2001, it was determined by the Geological Survey of Canada to lie west of the Ellesmere Island in northern Canada at the geographical location of 81°18′N 110°48′W. It was situated at 83°06′N 117°48′W in 2005.
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#SPJ2
what two numbers between 10 and 20 have 6 as their GCF
Which part of the water cycle is a biological process?
what type of a receptor would provide information on lung expansion to respiratory centers in the brainstem?
What’s the sun and Estimate to 5/10+4/9?
Answer:
The answer is 17/18
Explanation:
Please take a look at the attached picture for the explanation.
Why is it important for cells to be able to
take in nutrients and excrete (remove) waste
products?
Answer:
so that our body won't contain all the bad waste and allow all the good nutrients to help out our body.
The body of an organism utilizes the nutrient and the energy derived from the food.
The digestive system of an organism is accountable for breaking, digesting, absorbing and assimilating food.
The cells in our body perform biochemical reactions in which some of the substances are harmful or fatal to the body cells if gets stashed.
The method by which the excrement from the body is thrown out is called excretion.
So, for the appropriate functioning and for the cell to sustain discarding of wastes is required.
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Identify and define each of the basic science process skills
Answer:
Explanation:
Science process skills are the things that scientists do when they study and investigate. Observing, classifying, communicating, measuring, inferring and predicting are among the thinking skills used by scientists, teachers and students when doing science.
Who already watched Christmas Chronicles??
Answer:
I have and i loved it! It was so cool.
Explanation:
I’m stuck on this. I’ve asked my teacher 3 times and he just keeps telling me what assignment I’m on. I’m a week behind on work, and I only have a month before new semester. Please help! Instructions
Click the links to open the resources below. These resources will help you complete the assignment. Onc
file(s) and are ready to upload your assignment, click the Add Files button below and select each file from
folder. Upload each file separately.
1. An is a circulation of a
convection cycle of air.
Answer:
True
Explanation:
What best explains the relationship between photosynthesis
Оа
The higher the rate of formation of products in respiration, the lower the rate of photosynthesis.
Photosynthesis depends on the carbon dioxide released during cellular respiration.
Ob
О с
C
Cellular respiration depends on the water released during photosynthesis.
C
They have the same set of product molecules,
Answer:
I think it's the last one! "They have the same set of product molecules"
Explanation:
Photosynthesis removes carbon dioxide from the atmosphere, and cellular respiration puts it back. Photosynthesis releases oxygen into the atmosphere, and cellular respiration uses that oxygen to release energy from food.
help me with this please
Answer:
8. mutualism
9. parasitism
10. commensalism