The first step is to basically sort of “unzip” the double helix.
Which best summarizes the effects of mutations on organisms?
A Mutations are sometimes helpful, sometimes harmful, and sometimes neutral.
B Mutations are usually harmful, sometimes neutral, and never helpful.
C Mutations are sometimes neutral, sometimes helpful, and never harmful.
D Mutations are always harmful, never helpful, and never neutral.
Answer:
A Mutations are sometimes helpful, sometimes harmful, and sometimes neutral.
Explanation:
I did the test.
Answer:
A. Would be answer!
Explanation:
Hope this help!
The different shapes of the moon you see from Earth are called?
Answer:
they are called phases of the moon
which phrase describes this plate boundary
Answer:
This is a region where earth quakes may occur.
Explanation:
QuestionMitochondria, ribosomes/ and vacuoles are examples of
Answer:
vacuoles, ribosomes, and mitochondria are all examples of organelles.
because that is what they are all called when they are in the cell.
You are given a piece of single-stranded DNA with the following sequence: TAACTGGC. What is the complementary DNA sequence?
A. ATTGACCG
B. TAACTGGC
C. CGGACTTA
D. ATTCAGGC
5. What do porifera use their flagella for?
(1 Point)
O swimming
O eating
reproducing
Answer:
Porifera use their flagella to eating.
Explanation:
Porifera are immobile animals, typical of marine ecosystems, also called sea sponges and characterized by a lack of true tissue.
Coanocytes are one of the main cells of the porifers, and they are endowed with flagella that allow them to mobilize the water with food particles towards the microvilli, structures that trap them to be later absorbed.
The flagella play an important role in the feeding of the porifers, by conducting the food to the structures responsible for its absorption and processing.
The other options are not correct:
Porifera is immobile, so the flagella do not participate in swimming.Flagella do not participate in the reproductive process of marine sponges.Which characteristic would be most useful in determining if a cell is a plant cell?
Answer:
cell wall
Explanation:
Which phrase describes how Jupiter and Saturn are similar?
visible storms
slow rotations
many moons
fast revolutions
Answer:
Which phrase describes how Jupiter and Saturn are similar?
visible storms
slow rotations
many moons
fast revolutions
Explanation:
planet that are made from gas has many moon
Answer:
many moons
Explanation:
Which statements accurately describe elements? Check all that apply.
Elements are made up of two or more types of atoms.
Elements are made up of only one type of atom.
Each element has a unique chemical symbol.
O Elements can be identified by their atomic number.
One element cannot be combined with another element.
Answer:
Elements are made up of only one type of atom.
Each element has a unique chemical symbol.
Elements can be identified by their atomic number.
During a solar eclipse, explain what would an observer on the Moon
see on the surface of the Earth?
An observer on the moon would only see the sun partially covered
Where and how do hurricanes form?
Explanation:
Hurricanes form over the warm ocean water of the tropics. When warm moist air over the water rises, it is replaced by cooler air. The cooler air will then warm and start to rise. This cycle causes huge storm clouds to form.
Hurricanes can be defined as a serious type of storm which forms over
tropical or subtropical waters.
Hurricanes typically forms in the warm ocean water of the tropical or
subtropical regions
Hurricane involves the warm moist air over the water rising due to
evaporation which is then replaced by cooler air. The cooler air then warms
up and start to rise and then the cycle continues. This continuous cycle
makes huge storm clouds to form.
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What type of selection is seen in rock pocket mice
Subsequent studies demonstrated that there is strong selective pressure maintaining Mc1r allele and coat colour frequencies across the short geographic distances between the light- and dark-coloured rock islands. Thus melanism in rock pocket mice is considered a fabulous example of adaptation by natural selection.
This biome is filled with large hardwood trees
A Temperate Forest
B Boreal Forest (Taiga)
C Rainforest
D Desert
Answer:
b Taiga
Explanation:
Answer:
The answer is C
Explanation:
Which of the following is NOT a form of active transport? A) cyclosis B) phagocytosis C) diffusion D) pinocytosis
Diffusion is not active and instead a form of passive transport. So the correct option is option C.
Because diffusion is a non-electrical process, small particles move faster than larger ones. For example, molecules such as oxygen, CO2, and glucose move through cells.
Active transport involves moving molecules from a low-concentration region to a high-concentration region. In contrast to diffusion, active transport involves moving molecules against a concentration gradient.
The term “active” refers to the fact that transport is energy-dependent. Active transport is energy-intensive, whereas diffusion is energy-free.
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what is one reason cell biology is important? explain
Cell biology helps in understanding the state of cell, its functioning, which further helps in understanding the living things more clearly.
Cell biology• A branch of biology, which examines and studies the function, structure, and behavior of cells.
• All living things are formed of cells, and a cell is the fundamental unit of life, which is accountable for living and working of organisms.
• Cell biology is important as by knowing how the cell functions in both diseased and healthy conditions, the cell biologists can work with plant, animal and medical science and will be able to create novel vaccines, plants with better qualities, and more efficient medicines.
Thus, cell biology is a branch that deals with the study of cells, which can further help in better understanding of the living things around us.
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What is an Archimedean screw used for?
1. To move things from a higher level to a lower level.
2. To change the orientation of an object.
3. To change the direction of an object.
4. To move things from a lower level to a higher level.
Answer: c
Explanation:
The Archimedean screw is to move things from a lower level to a higher level.
What is the Archimedean screw?
The Archimedean screw is one of the oldest and most usefull hydraulic machines. It is said to have been developed by Archimedes himself in ancient Greece.
The basic use of the Archimedean screw is to lift water from a lower to a higher point therefore, the use of the Archimedean screw is to move things from a lower level to a higher level.
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Compare and contrast safe practices used during field investigations with those used in laboratory situations.
Answer:
in the field you know how to swim and dive, have appropriate diving equipment, and appropriate diving certifications. as in the lab I wore my apron, latex gloves, and safety glasses. I'm if this is wrong I used google
True or False: Metals have a higher melting point than water.
Line CD is the perpendicular bisector of segment AB. The lines intersect
at point E. Which of these statements is true?
(Hint: it may help to draw a picture, but you don't have to turn it in!)
There is not enough information to be sure.
O E is closer to A than to B.
O E is closer to B than to A.
O E is the same distance from A and B.
plz help me understand this
Answer:
Option - E is the same distance from A and B.
Explanation:
Perpendicular bisector can be understood by this explanation:
If line n is intersected by line n at the center of line n
, then line m is the perpendicular bisector of line n
There are 4 right angles formed due to this perpendicular bisector around this mid-point
∵ Line CD ⊥ of segment AB
∴ Line CD intersects segment AB at the middle point of AB
∵ Line CD and segment AB intersected at point E
so, E ∈ AB and E ∈ CD
⇒ Point E is the mid-point of line AB
⇒ E is the same distance from A and B.
Thus, the correct option is - E is the same distance from A and B.
The picture shows a cell model and the solutions
associated with it. In this situation the cell model will
Answer:
Increase in solute content
Explanation:
Raul wants to study how pot size affects the growth of plants. To do this, he intends to purchase three different pots of varying diameter. Then, he will fill each pot with the same amount of soil and plant different kinds of flowers in each pot. Finally, he will place the pots side by side in a sunny location and water each pot daily with the same amount of water.
Answer:
No
Explanation:
Based on the exact methodology that Raul is using he will never produce valid results. This is mainly due to the fact that there are too many changing variables in his experiment. In order to produce valid results, the experiment can only have one changing variable (independent variable) at a time, while all of the other variables need to be controlled/constant. This would allow Raul to isolate which change is actually causing the desired effect in the plants. The way that Raul has his experiment set-up he will not be able to pinpoint exactly what variable or aspect is actually causing the growth of the plants.
Which of these structures would be found
in a plant cell, but not in an animal cell?
A) Cytoplasm
B) Nucleus
C) Mitochondria
D) Cell wall
Answer:
Cell wall
Explanation:
Answer:
D) Cell Wall
Explanation:
Cell walls provide plant cells with stength and protection against mechanicat and osmotic stress.
Cells Test 2 2020 21 UPDATED / 2 of 25
Which of the following best explains what would happen to animal cells if plant cells did not
perform photosynthesis?
A Animal cells would not be able to process energy from sunlight
B. Animal cells would not have oxygen to produce glucose.
c. Animal cells would not have carbon dioxide to produce energy
D. Animal cells would not have glucose to produce energy
Science PLZZZZZZZ!!!!!
Answer:
Gravity and inertia
Explanation:
C. Gravity and inertia
Please help me with my biology work
Answer:
25) M
26) H
27) G
28) K
29) O
30) J
Explanation:
An atom contains 15 electrons. How many energy levels would it have?
It would have 8 energy levels
Answer: i'm pretty sure its 3!
Explanation:
ONLY ONE RIGHT ANSWER
HELP PLEASE
The organelle that converts energy from sunlight in a plant cell.
nucleus,
prokaryote,
nucleic membrane,
mitochondria,
chloroplast,
vacuole,
centrioles,
lysosomes
cell,
endoplasmic reticulum,
Golgi apparatus
eukaryote,
organelle,
ribosomes
Answer:
Chloroplast I believe?
Explanation:
Answer:
Chloroplasts
Explanation:
Chloroplasts work to convert light energy of the Sun into sugars that can be used by cells. It's almost like a solar panel that converts sunlight energy into electric energy.
PLEASE HELP!!!!!!!!!!!!!!!!!!!! WHAT IS THE CONTROL GROUP FOR THIS
Hypothesis:
In this section, please include the if/then statements you developed during your lab activity. These statements reflect your predicted outcomes for the experiment.
If predators are increased, then the cricket frog population will (increase/decrease/stay the same) over the span of five years.
If pollution is increased, then the cricket frog population will (increase/decrease/stay the same) over the span of five years.
If the amount of food available is increased, then the cricket frog population will (increase/decrease/stay the same) over the span of five years.
Procedure:
The procedures are listed in your virtual lab. You do not need to repeat them here. Please be sure to identify the test variable (independent variable), outcome variable (dependent variable), and control group for this experiment.
Reminder: The test variable is the item that is changing in this investigation. The outcome variable is the item that you are measuring in this investigation. The control group is the group in the experiment where the factors being tested are not applied. It allows scientists to set a baseline to compare the experimental groups that do have factors applied to them.
Test variable (independent variable): Limiting factor- Food, Pollution, Predators.
Outcome variable (dependent variable): Cricket Frog (population)
Control group:
Answer:
decrease
decrease
increase
control group is the cricket frog population
Explanation:
Its the group that is being measured.
Answer:
Limiting factor- Food, Pollution, Predators.
Outcome variable (dependent variable): Cricket Frog (population)
Control group: Cricket Frogs in the Florida Everglades without changes in or manipulation of the population.
I Hope It Help's! :)
Below is a food chain from an ecosystem.
ect
fly – frog – snake
-
alligator
The arrows indicate the direction of the flow of
A. energy
B. water.
C. oxygen.
D. carbon dioxide.
.......is the physical quantity that depends on the enertia of the body
1) force
2) mass
3) weight
4) acceleration
Answer:
I think its 2 mass correct me if im wrong but I'm very sure
Answer:
A
Explanation:
Force or weight im not sure if correct
