what are cells surrounded and protected by?
Answer:
cells are surrounded by a structure called the cell membrane — which, much like the walls of a house, serves as a clear boundary between the cell's internal and external environments. The cell membrane is sometimes also referred to as the plasma membrane.
Answer:
The plasma membrane, or cell membrane
Explanation:
what is the all year round climate present in the philipines
The average year-round temperature measured from all the weather stations in the Philippines, except Baguio, is 26.6 °C (79.9 °F). Cooler days are usually felt in the month of January with temperature averaging at 25.5 °C (77.9 °F) and the warmest days, in the month of May with a mean of 28.3 °C (82.9 °F).
WILL IVE BRAIN?? Why might humans not have widespread regeneration abilities?
Answer: because mammals have more complex biological structures; limb regeneration would require sophisticated controls to ensure that limbs and organs don’t grow out of control.
Explanation:
what are the effects of a change in protein? there is 3
This equation is unbalanced. Which of the following is the correct balanced equation for this reaction?
Answer:
There is no any unbalanced equation
What are the non-living components of an ecosystem?
The diagram above illustrates the carbon cycle. Which of the Following components of the diagram represent carbon sinks?
A. marine photosynthesis and respiration
B. volcanoes and soil carbon
C. oceans and fossil carbon
D. factories and photosynthesis
Answer:
D) Factories and Photosynthesis
What elements are in the most common substance in the human body?
A. Carbon and nitrogen
B. Hydrogen and oxygen
C. Oxygen and phosphorus
D. Calcium and nitrogen
The skull and vertebrae are part of the _________ in vertebrates. circulatory system endoskeleton nervous system exoskeleton Science
Answer:
Endoskeleton
Explanation:
Hope this helps!
Answer:
nerveos systum i think is tha anser
pushing a chair requires less energy than pushing than pushing a desk because
A. The surface area of the desk is larger.
B. The desk has less mass then then the chair
C. The chair has less mass then the desk
D. The chair is smaller
Answer:
c
the chair has less mass then the desk
Explain how different types of cells help organisms live and grow?
Different types of cells have different jobs that are necessary to keep organisms alive.
Different types of cells are only found in specific types of organisms.
Cells are necessary in order for all organisms to grow big and hunt for their food source.
Cells provide support for all organisms to be able to move.
Answer:
Different types of cells have different jobs that are necessary to keep organisms alive. And cells also give the living animal more support. They also hold the genetic information of that organism in their nucules. This is with most cells but bacteria cells do not contain nucules.
When and where would you expect to find the highest rate of primary productivity
Answer: Net primary productivity is the amount of gross primary productivity remaining after respiration, which is about 40 and 85 percent. Sloughs and marshes, as well as tropical rain forests, possess the highest rates of net primary productivity; deserts have the lowest.
Explanation:
I explained on the top-
The highest rate of primary productivity in terrestrial environments takes place in swamps and marshes and in tropical rainforests, and in aquatic environments it takes place in algal beds, estuaries, and reefs.
• In ecology, primary productivity refers to the rate at which conversion of energy to organic substances takes place by the photosynthetic producers that attain energy and nutrients from the sunlight, and chemosynthetic producers that attain chemical energy via oxidation.
• The majority of the energy assimilated by plants via the process of photosynthesis is not stored as organic substance, however, is utilized at the time of cellular respiration.
• In the process, the organic components like proteins, carbs, and fats are dissociated to provide energy in the form of ATP for the metabolic needs of the cells.
• The energy not utilized is stored in the tissues of the plants for future use and is known as the net primary productivity.
• The highest net primary productivity in terrestrial environments takes place in marshes and swamps and in tropical rainforests, and in aquatic environments it takes place algal beds, estuaries, and reefs.
These environments are mainly critical for the sustenance of global biological productivity.
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The tissues that develop from
of a zygote are the direct result of:
a. Meiosis and fertilization
B. Fertilization and differentiation
C. Asexual reproduction and meiosis
D. Differentiation, later,
Fertilization
Answer:
D. differentiation, later, fertilization
A single species can feed at only one tropic level
True
False
Answer: True sorry if I’m wrong.
Explanation:
Answer:
True
Explanation:
PLEASE HELP I WILL GIVE BRAINALIST
Answer:
DNA is double-stranded, but only one strand serves as a template for transcription at any given time. This template strand is called the noncoding strand. ... In most organisms, the strand of DNA that serves as the template for one gene may be the nontemplate strand for other genes within the same chromosome.
Answer:
35. I think ture
36 . true
37.i think False
38.T but it is complementary base pairing
39.
40.you have to use amino acid table for this
Methane is a powerful greenhouse gas. Which of the following is NOT a
source of methane?
O melting of methane hydrates
O decay of living things/landfills
O increased evaporation
O cow farts
Answer:
increased evaporation.
Explanation:
there is no methane in or near the process of evaporation.
hope this helps
Each Taxonomy (category) gets less and less specific as they go further down the list.
A. True
B. False
Answer:
B. False
Explanation:
The levels of classification, from broadest to most specific, include: kingdom, phylum, class, order, family, genus, and species.
Answer:
B. False
Explanation:
Taxonomy is the study of the general principles of scientific classification.
what is a halflife in science?
One-half of the atomic nuclei of a radioactive sample to decay
Summary of human nutrition
Answer:
Human nutrition is the process of which substances are Transformed into tissues and energy which are used up to mental and physical activities!
can anyone tell me what all books are there for cbse pcb class 11
Answer:
NCERT Biology for Class 11.
NCERT Chemistry Part I for Class 11.
NCERT Chemistry Part II for Class 11.
NCERT Physics Part I for Class 11.
NCERT Physics Part II for Class 11.
NCERT Hornbill - English Core for Class 11.
NCERT Snapshot - Supplementary English Core for Class 11.
hope it helps
What was Darwins “
master work” titled
Answer:
Origin of Species by Means of Natural Selection
(Easy question)
What is an Adaptation?
Answer:
The way something changes to fit its natural environment or surroundings to have a better chance at success for anything
Explanation:
Identify what holds DNA, the hereditary information of a cell?
(Its not the nucleus)
PLEASE HELP!
Answer:
chromatin network or chromosomes
I’m confused help me pls
Claim: This process uses expensive fertilizers and pesticides to grow pest free crops which may be produced in excess. Explain the reasons why people would go against growing wheat this way.
Your answer: Here are 3 reasons that go against growing wheat this way.
1. The fertilizers and pesticides are expensive and cost farmers a lot which takes away from the revenue that farmers make from growing the crops in the first place.
2. Other then fertilizers and Pesticides its a lot of work as you can see on the chart throughout the year there are many things you must do too keep crops bug free and pest free this reason I'm explaining says that taking and doing all of this work for not pests/bugs is too much and not needed.
3. Fungicide Is needed a lot and incredibly expensive when you used/spray it on crops that much and point goes a lot more for large crops too.
If these reasons don't work, find factors that or counterclaims that go against this method of harvesting wheat. (This is what your supposed too do)
Starch is a polysaccharide used as a component of cell walls in plants.
True
False
Answer:
false
Explanation:
is type of carbohydrates
False. Starch is a polysaccharide used as an energy storage molecule in plants, but it is not a component of cell walls.
What are structural component of cell wall?Cell walls are structural components found in the outermost layers of cells in plants, fungi, and some bacteria. They provide support and protection for the cell, and are composed of a variety of different biomolecules, including cellulose, pectin, and lignin.
Starch, on the other hand, is a complex carbohydrate that is synthesized and stored in the cells of plants, particularly in the seeds, roots, and tubers. It is made up of long chains of glucose molecules and is used by plants as an energy source, particularly during times when the plant does not have access to light for photosynthesis. Starch is not a component of cell walls.
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In the predator-prey relationship between lions and zebras, when the population of zebras is great, the population of lions will
A. decrease
B. increase
C. stay the same
D. die off
Answer:
B. Increase
Explanation:
Since lions rely on zebras as a food source, if there are more zebras (more food sources for the lions), there will also be more lions. Therefore, the lion population would increase initally.
A water molecule is
Answer:
Water is a chemical compound and polar molecule, which is liquid at standard temperature and pressure. It has the chemical formula H2O, meaning that one molecule of water is composed of two hydrogen atoms and one oxygen atom. Water is found almost everywhere on earth and is required by all known life. About 70% of the Earth's surface is covered by water. Water is known to exist, in ice form, on several other bodies in the solar system and beyond, and proof that it exists (or did exist) in liquid form anywhere besides Earth would be strong evidence of extraterrestrial life.
Explanation:
hope it helps maya
I NEED HELP ASAP
click on the picture to help
Answer: 1- Central nervous system, thalamus.
2- Because the hypothalamus is part of an unit called Hypothalamus - adeno/neuro hypophysis, that unit synthesizes hormones.
3- Through different cores like supraoptic, paraventricular, etc.
4- Specific hormones (polypeptides, proteins, derived from amino acids, steroids). Those hormones travel in arterias or veins to the diana organs.
5- pituitary gland/ hypophysis
Explanation: -
two types of global food webs show the feeding relationships of organsms. What distinguishes one type of global web from the other?
A whether the producers are located on land or in water
B whether or not the food web includes tertiary consumers
C whether the web includes animals that migrate during the year
D whether the ecosystem described by the web is localized or very broad
Answer:
A. wheter the producers are located on land or in the water.
What does "synthesis" mean?
A. to read DNA
B. to tear apart
C. to make something
Answer:
I believe it is C to make something
