Answer:
Because they are specific to certain reactions.
Explanation:
Enzymes are proteins that fold in certain ways that speed up reactions. One enzyme will only speed one reaction or set of reactions.
how many social connections should you have at least a day?100 POINTS
Answer:
Explanation:
You should have as many social connections a day as you feel comfortable. It can be as little as one a day or you can be on social 24 hours a day. There is no right or wrong answer here.
plants are living things true or false
Answer:
True
Explanation:
Plants are living things and they need air, nutrients, water, and sunlight. Other living things are animals, and they need food, water, space, and shelter. Non-living things include things that do not need food, eat, reproduce, or breathe.
Is there a way to know any test exam style questions for 9th grade biology because biology is a very complex subject and lots of information to learn and I want to study the key details thanks:D
PLEASE HELP!!!
Global dimming __________and lessens the global warming that has been predicted.
a. heats the atmosphere
b. takes place on the surface of the Earth in a reflective response to the Sun
c. cools the atmosphere
d. causes acid rain
e. causes glacier melt
PLZ HELP!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
True or false: If an injury occurs in the lumbar region of the spinal column, loss of sensation can occur in all 4 limbs.
True
False
Answer: True
Explanation:
PLS HELP
Plant cells have cell walls, while animal cells only have cell membranes surrounding them. Which of the following best describes how the cell wall is different from the cell membrane
1. cell walls tend to be more rigid than the cell membrane
2. cell walls tend to be smaller than the cell membrane
3. cell walls tend to contain more lipids than the cell membrane
4. cell walls tend to contain less cellulose than the cell membrane
Answer:
1. cell walls tend to be more rigid than the cell membrane
Explanation:
Cell walls are called 'walls' for a reason (:
Which answer best illustrates evolution by natural selection?
(2.9 points)
A. Ancestors' legs grew longer from climbing to escape predators.
OB. Ancestors that had longer legs could not produce more offspring.
O c. Ancestors wanted longer legs to escape predators and therefore grew longer legs
OD. Ancestors with longer legs escaped predators more easily and lived to produce more offspring.
Answer: A
i know this because i have taken this before
Which of the following limits cell size? Select all of the answers that apply.
Answer:
Cell size is limited by a cell's surface area to volume ratio. A smaller cell is more effective and transporting materials, including waste products, than a larger cell. Cells come in many different shapes
I Need help please giving BRAINLIST and a like a 15 points
Which organ systems
contain the liver list 4
Which of the following actions would decrease global warming?
Explanation:
Where possible, we can switch to renewable sources of energy (such as solar and wind energy) to power our homes and buildings, thus emitting far less heat-trapping gases into the atmosphere.
Pale yellow
Green
22.1 Why should the plant be de-starched before conducting the
investigation?
2.22 State the colour of the pale yellow part after the starch test.
2.23 What can be coricluded from this investigation?
Answer:
2.2.1 To compare the results and identify the parts of the plant that produced the stach
2.2.2 Brown, The colour of iodine
2.2.3 To show that chlorophyll is nessesary for photosynthesis
PLEASE ANSWER! 100 POINTS!
Which of the statements below is true about osmosis?
a. As the universal solvent, water loves dissolving solutes and will always go to a hypertonic area.
or
b. As the universal solvent, water loves dissolving solutes and will always go to a hypotonic area.
how do we smell a gas
Answer:
you sniff it with ur nose
How is water traveling underground to lost Lake?
Answer: Water becomes the part of the aquifer.
Explanation:
Water from rain, snow fall, river, lakes, ponds, ocean, irrigation field, and from other sources become the part of the ground water or aquifer. The water seep into the soil or rocks and deposited as reservoir of water underground. The underground water when exposed to the surface can become the part of the lost lake or any other water body. Thus the source of lost lake can be determined this way by tracking the distance covered by the ground water.
Help I’ll mark u brainless
Answer:
The answer is A
Explanation:
It is A because rock, water, and sand are all abiotic , is is NOT c because algae is a biotic factor
can trees and plants cause soil erosion?
Answer:
no
Explanation:
it will not cause soil erosion because tree or plant root will handle it very strongly
(IF ITS NOT THE ANSWER YOU'LL GET REPORTED)
Someone help me with this
Answer:
homologous structure
Explanation:
those organs which have the same basic structure but have different functions are known as homologous organs/structures.
An organism made up of only one cell is called...
A. multicellular
B. unicellular
Answer:
unicellular
Explanation:
Unicellular organisms are made up of only one cell that carries out all of the functions needed by the organism.
Answer:
Unicellular
Explanation:
Uni means consisting of one, and Multi means more than one (:
what is the dominant phase in the life cycle of an angiosperm ?
Answer:
Angiosperms are vascular plants, and all vascular plants have a life cycle in which the sporophyte phase (vegetative body) is the dominant phase and the gametophyte phase remains diminutive.
Explanation:
I hope it's help u
Angiosperms are vascular plants, and all vascular plants have a life cycle in which the sporophyte phase (vegetative body) is the dominant phase and the gametophyte phase remains diminutive.
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Astronomers use the light year to describe the relationship between objects in space, for example, the andromAda galaxy is 2.5 million light years from earth which of the following units is most similar to the light year
A. Gram
B. Second
C. Kilometer
D. Degrees Celsius
Which of the following is an example of a physical change but not a chemical change?
Teeth breaks down food into smaller particles.
Bile in the liver breaksdown fat globules.
Salivary amylase breaks down the starch in the mouth.
Hydrochloric acid in the stomach grind the protien in the stomach.
Answer:
teeth breaks down food.....
Explanation:
all of the other ones have a chemical change to them, but the teeth one is just crushing food to make a physical change
How does increasing and decreasing the temperature affect the kinetic energy of molecules?
Please help
If the temperature is increases, the average speed of the kinetic energy will also increase but when the temperature is decreased, the container wall area decreases and therefore molecule-wall collision frequency also increases.
If there was no plant's, what would happen to the carbon dioxide
Answer:
There won't be carbondioxide and i think that will affect us big time
In an experiment determining the effects of antibiotics on the treatment of pneumonia in mice, two groups of mice with pneumonia are compared. One group, group A, receives no antibiotic, and the other group, group B, receives 10 mg/kg of body weight of a new antibiotic. Besides the administration of the antibiotic, there are no differences between the two groups of mice. What is the purpose of group A
Answer:
Group A is the control of the experiment
Explanation:
In an experiment, the control group is the group that does not receive any experimental treatment. The control groups are kept in the same condition as the experimental group except the variable being tested (independent variable).
In this question involving an experiment to determine the effects of antibiotics on the treatment of pneumonia in mice. Two groups of mice were employed. One of the groups (group A) received no antibiotic while the other group (group B) received 10 mg/kg of antibiotics. This means that GROUP A is the CONTROL GROUP of this experiment.
put in order by numbers pls lol
what is the current ph level of the ocean
Answer:
8.1
Explanation:
The changes over time in the inherited traits of a type of organism are ____.
A) growth
B) biogenesis
C) spontaneous generation
OD) evolution
The changes over time in the inherited traits of a type of organism are known as evolution of the species. Thus, the correct option is D.
What is Evolution?Evolution is change in the heritable characteristics of biological populations which are taking place over the successive generations. These characteristics are the expressions of different genes, which are passed on from the parents generation to their offspring during the time of reproduction.
Variation in the genetic material tends to exist within any given population as a result of the genetic mutations and recombination. Evolution in a species occurs when the evolutionary processes such as natural selection and genetic drift act on this variation in species, resulting in certain characteristics which are becoming more common or more rare within a population than other traits.
Therefore, the correct option is D.
Learn more about Evolution here:
https://brainly.com/question/13492988
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A roan cow is crossed with a red cow. What percent of the offspring will be roan?
Answer:
Red cows have a dominant red allele and white cows have a dominant white allele. When a red cow mates with a white bull, they can have offspring that have the color that is called Roan which is a red and white spotted appearance. This is an example of co-dominance
Explanation:
CORRECT ME IF I AM WRONG
If a roan cow is crossed with a red cow, the percentage of roan cow in the offspring will be 50%.
CO-DOMINANCE:A roan cow phenotype is a product of co-dominance between red (R) and white (W) alleles. This means that a roan cow will have a RW genotype. If a roan cow is crossed with a red cow i.e. RW × RR, the gametes produced by each cow is as follows:RW - R and WRR - R and RUsing a punnet square, the following offsprings of cow will be produced: 2RR, and 2RW. This means that the percentage of roan cows in the offspring will be 50% i.e. ½ × 100 = 50%.Therefore, If a roan cow is crossed with a red cow, the percentage of roan cow in the offspring will be 50%.
Learn more about co-dominance at: https://brainly.com/question/9881046
How does a change in air temperature, air pressure, wind direction, wind speed, and water in the atmosphere affect the weather we observe?
Answer:
Hope this helps!
Explanation:
If someone across country asks you what the weather is like today, you need to consider several factors. Air temperature, humidity, wind speed, the amount and types of clouds, and precipitation are all part of a thorough weather report. In this chapter, you will learn about many of these features in more detail. Weather is what is going on in the atmosphere at a particular place at a particular time. Weather can change rapidly. A location’s weather depends on all of these factors.
Put the following events in the correct order:
A. mRNA leaves the nucleus and goes into the cytoplasm
B. The DNA sequence is copied to the mRNA sequence during transcription
C. Proteins determine our traits
D. Ribosomes read the mRNA and create a chain of amino acids
Answer:
the correct order is B,A,D,C