Answer:
It is 1) produce food
Explanation:
I had this question on my test last week
Has anyone done aqa a level biological molecules exampro exam paper
Answer:
No sorry
Explanation:
In seedless plants, haploid gametophytes are produced from
A; diploid spores that undergo mitosis.
B: haploid spores that undergo meiosis.
C; diploid spores that undergo meiosis.
D; haploid spores that undergo mitosis.
Answer: It's A!!
Explanation:
Answer:
diploid spores
In seedless plants, haploid gametophytes are produced from a diploid spores that undergo mitosis.
Explanation:
The image of a slide of onion epithelial tissue observed with the low-power objective of a
compound microscope appears light and somewhat fuzzy. Which parts of the microscope should be used to improve the focus?
coarse adjustment and ocular
fine adjustment and diaphragm
ocular and nosepiece
diaphragm and 40x objective
Od
Answer:
Fine adjustment and diaphragm
Explanation:
PLZZZZ HEELLLPPPP need sooon
Answer:
1.ecological
2.ecological?
3. genetic
4.
5.
6.ecological
7. genetic
8. species
9. ecological
Explanation:
here are some sorry i was trying to go fast
What does a plant need to create a glucose molecule in photosynthesis?
Choose all correct answers.
Answer: Carbon dioxide and energy (sunlight or light)
Explanation:
During the process of photosynthesis, cells use carbon dioxide and energy from the Sun to make sugar molecules and oxygen. These sugar molecules are the basis for more complex molecules made by the photosynthetic cell, such as glucose.
Answer:
water
oxygen
sunlight
Explanation:
Cell biologists studying the mobility of plasma membrane proteins fused mouse and human cells together, creating a heterokaryon. They then examined the localization of mouse and human proteins over time. Initially the mouse and human proteins were restricted to separate halves of the heterokaryon. Over time the mouse and human proteins mixed, with each protein eventually being present over the entire cell surface, consistent with proteins being able to move within the plane of the membrane. What techniques could have been used to examine the locations of the mouse and human membrane proteins
Answer: Fluorescence microscopy
Explanation:
A protein is substance that is the essential constituent of living cells because it forms part of its structure. They are also found in plasma membrane, where they assist substances to cross the membrane. Proteins can be:
Integral: permanently attached within the plasma membrane.Transmembrane: it spans the entirety of the cell membrane.Peripheral: are only temporarily associated to the membrane.Some integral proteins can act as cellular receptors. Other proteins are responsible for cell adhesion (binding of a cell to another cell or to a surface). On the outside of the cell membranes, attached to other proteins, are the carbohydrate chains that act as labels identifying the type of cell.
A heterokaryon is a multinucleate cell and in this experiment the scientists fuse a human cell and a mouse cell, each of them will have their own proteins. At first, the human and mouse proteins where found in separated halves of this heterokaryon. But after a while, those proteins where mixed and could no longer be identified.
A fluorescent chemical called a fluorophore is able to be absorb light of specific wavelengths and then emit light of longer wavelengths. The proteins can be modified and marked with different colored fluorophores to detect them, even if they are mixed in the heterokaryon. Then, they can be seen with a Fluorescence microscopy, to identify them through different colors.
What is the name for a substance that keeps
the pH in cells within the 6.5 to 7.5 pH range?
Answer: Neutral
Explanation:
“6.5 to 7.5—neutral. over 7.5—alkaline. less than 6.5—acidic, pH less than 5.5 are considered strongly acidic.“
Which of the following best describes the size of an average animal cell?
A. Smaller than the width of a human hair.
B. Approximately 0.1 mm wide.
C. Approximately 1 mm wide.
D. Smaller than a breadbox.
Answer:
The answer Is A "Smaller that the with of a human hair"
My Logic:
Cells make up a human hair follicle so the cell needs to be smaller that the Hair. And a human hair is much smaller than .1 mm wide. Hope this Helps!
When we sleep, what happens to our body temperature?
a
It stays the same
b
It increases
c
It decreases
d
Nothing
Answer:
C, it decreases. It's natural for your body temperature to decrease during REM period of sleep.
Chromosomes that have the same structure, size and carry the same genes but different versions of that gene.
A. Identical Chromatids
B. Homologous Chromosomes
C. Centromeres
D. Heterozygous Chromosomes
Answer:
heterozygous chromosomes
Explanation:
They're both the same size and the same gene, but their different versions
cholesterol is synthesized by all animal cells and is an essential structural component of animal cell's membrane cholesterol is the most common steroid and mainly synthesized in the liver cholesterol also serves as a processor for several important biological compounds including all except insulin ,vitamin D, bile salts , testosterone.
Answer:
Aug 11, 2017 — Vitamin D3 is produced in the skin from 7-dehydrocholesterol by UV irradiation, 1,25(OH)2D reduces 1,25(OH)2D levels in cells primarily by Animals null for calbindin 9k (the major calbindin in mammalian abnormal vitamin D and/or calcium metabolism in some but not all of these patients (24-26). Cholesterol, a waxy substance that is present in blood plasma and in all animal tissues. it is a primary component of the membrane that surrounds each cell, and it is synthesizes bile acids, steroid hormones, and vitamin D. Cholesterol are essential energy sources and structural components of all life
RED HAIR IN HUMANS……
PLEASE HELP ILL PUT U IN BRAINLIEST
Answer: A B E
Explanation:
Which best describes the process of insertion?
A.occurs when part of a chromosome breaks off and is placed into the middle of another chromosome
B.occurs when part of a chromosome breaks off and reattaches backward on the same chromosome
C.occurs when part of a chromosome breaks off and does not reattach
D.occurs when part of a chromosome breaks off and attaches to another chromosome
Answer:
A.occurs when part of a chromosome breaks off and is placed into the middle of another chromosome
Explanation:
Edge 2020
Answer:
A
Explanation:
EDGE2021 :-)
Have a nice day! ^-^
What are the two endocrine organs that work together to control blood calcium levels?
Answer:
:)))))
Explanation:
:::::::::::::::::::::::))))))))))))))))))
is it true that uranus was knocked over by a collision with a planet sized object
Answer:
It turns out that Uranus is so weird because of a massive collision billions of years ago. A new study confirms that this collision with a huge object which was approximately twice the size of Earth.
Explanation:
An animal cell: the human body. Different but also alike. Your brain is the control center of your body. What is the control center of the animal cell?
Answer:
the nucleus is the center of the animal cell
Pls hurry and answer I’ll give brainliest
Answer:
D
Explanation:
might be wrong
Which 3 characteristics did Darwin observe that were slightly different in a population?
A function, breeding habits, food sources
B form, function, behavior
C behavior, form, food sources
D form, breeding habits, behavior
Answer:
B. form, function, behavior
Explanation:
The cell structure at the arrow in the picture below is present in these cells which line the airways, but are NOT present in bacteria. What is the cell structure at the arrow?
Answer:
The cell membrane
Explanation:
The arrow is pointing to the outside ¨shell¨ so to speak which is the cell membrane, bacteria do not have cell membranes
plant roots grow in the direction of gravity. They are also exhibiting hydrotropism,which is a response to (A) water (B)gravity (C) chemicals (D) touch
Answer:
A
......... . . . . . . .. ...
What is the correct answer?
Answer:
The correct answer is A
30 points, please answer question in picture :) i need help
Answer:
the answer is A
Explanation:
because 6 is where it reaches the highest point
Photosynthesis
Use respiration in a sentence.
Answer:
Cellular respiration produces the energy cells need to function, in the form of ATP.
Explanation:
1. Describe the main pathways of the water cycle, including
how water enters and leaves the atmosphere.
Answer:
Enjoy your free answer
Explanation:
Liquid water evaporates or the process of transpiration, forming water vapour that moves through the atmosphere, then comes down as precipitation, either enters the soil or transfers onto the lakes, rivers, oceans, etc.
Enjoy!
Liquid water evaporates or the process of transpiration, forming water vapour that moves through the atmosphere, then comes down as precipitation, either enters the soil or transfers onto the lakes, rivers, oceans, etc.
What is water cycle?The water cycle, also known as the hydrologic cycle or the hydrological cycle, is a biogeochemical cycle that describes the continuous movement of water on, above and below the surface of the Earth.
Moreover, the water cycle shows the continuous movement of water within the Earth and atmosphere. It is a complex system that includes many different processes. Liquid water evaporates into water vapor, condenses to form clouds, and precipitates back to earth in the form of rain and snow.
Therefore, the hydrologic cycle is important because it is how water reaches plants, animals and us! Besides providing people, animals and plants with water, it also moves things like nutrients, pathogens and sediment in and out of aquatic ecosystems.
Learn more about water cycle:
https://brainly.com/question/1535846
#SPJ2
The red line in this diagram represents: *
What is the small molecule ?
Answer:
Within the fields of molecular biology and pharmacology, a small molecule is a low molecular weight organic compound that may regulate a biological process, with a size on the order of 1 nm. Many drugs are small molecules.
Explanation:
Make sure to edit
PLEASE HELP!!!? Are humans an invasive species? Why or why not. GIVE TWO PIECES OF EVIDENCE TO SUPPORT YOUR OPINION.
Answer:
I think yes, humans are an invasive species.
Explantation:
I think humans are an invasive species because they are everywhere, and very few places in the world do not have humans. Humans are in control of the planet because of their number. Humans are not going to be extinct ever. They are always going to be here on earth. If somebody finds new land, they make a base/camp and send other people to live there and to populate it. Like in North america, settlers came and sent men to live there. They hunted animals and set up homes. Then, more and more people came and soon all that is left is a over populated land with citys and cars and humans everywhere.
I hope this helps. :)
ocean trenches are most often formed when
Answer:Ocean trenches are driven by tectonics and are most commonly found along the Pacific Ocean in a zone known as the ring of fire. They are usually formed at the boundaries of convergent plates, at a region where a continental plate submerges beneath an oceanic plate.
Explanation:
Can someone help me?
Answer:
A Genotype is a genetic constitution of an individual organism.
If I were to make hot cocoa which consists of chocolate syrup and milk, identify the solution
a. chocolate syrup
b. milk
c. none of the above
d. hot cocoa