Answer:
a. All species come from preexisting species and are changed over time.
Answer:
A
Explanation:
All species come from preexisting species and are changed over time.
A brown cat (BB) has a litter of kittens with a white cat (bb). What percent of their kittens will be brown?
a)10%
b)25%
c)75%
d)100%
4. Which organ system in humans is most directly involved in the
transport of oxygen?
excretory
nervous
circulatory
O digestive
Answer:
C. Circulatory System
Explanation:
The circulatory system (cardiovascular system or the vascular system) is an organ system that permits blood to circulate and transport nutrients (such as amino acids and electrolytes), oxygen, carbon dioxide, hormones, and blood cells to and from the cells in the body to provide nourishment and help in fighting diseases, stabilize temperature and pH, and maintain homeostasis.
Suppose that a minnow eats 100 marsh plants in one year. How much DDT builds up in the body of the minnow?
Answer:
50
Explanation:
Explanation:
50 nnnnnsjsjskkswlwlwlwl
When does DNA synthesis occur?
S phase of interphase
G1 phase of interphase
G2 phase of interphase
Mitosis
Answer:
A. S phase of interphase
Explanation:
hope this helped :)
Use the picture to explain how CONVECTION heat transfers could be responsible for the weather in our atmosphere.
Answer the question in 2-3 complete sentences.
Answer:
The sun's waves heat the ground, causing it to warm (radiation). The energy flows from the warmer ground to the cooler air (conduction), causing it to rise (convection). When the rising air reaches a certain point, it expands, cools, and the cooler expanded air can no longer hold as much water vapor so it rains.
Explanation:
Which of the following is NOT a greenhouse gas?
water vapor (H20)
)
methane (CH4)
oxygen (02)
carbon dioxide (CO2)
oxygen is the correct answer
Answer:
oxygen (02)
Explanation:
definition of ecology
Answer:
The scientific study of interactions among organisms and their environment.
Explanation:
the speed of seismic waves varies as they travel through earth
Large plants are non-vascular.
A)true
B)false
Answer:
I think it's False but i'm not 100% sure
Explanation:
PLEASE HELPPPPP!!!!! The law of conservation of mass states that the mass of all the substances present before a chemical change equals the mass of all the substances remaining after the change. Design an experiment to verify this law.
Answer:
Use the vingear and baking soda experiment but change it to lemon and not vingear.
Explanation:
A chemical reaction takes place when vinegar and baking soda are mixed. One of the new substances formed is carbon dioxide gas. If the carbon dioxide gas is contained, the mass of the substances will stay the same according to the Law of Conservation of Mass. If the gas is allowed to escape, the mass will be less
Which of the following best describes a characteristic that distinguishes animals from protists
Most animals are eukaryotes, and most protists are prokaryotes.
Most animals have bilateral symmetry, and most protists have radial symmetry.
Most animals have cell walls containing proteins, and most protist cell walls contain chitin.
Most animals are multicellular, and most protists are unicellular.
Answer:
Most animals are multicellular, and most protists are unicellular
Answer:
D) Most animals are multicellular, and most protists are unicellular.
Explanation:
This answer makes the most sense, and I took the test.
How does a mouse reproduce ?
Answer:
Mice are breeding machines. They have a gestating period of 19 to 21 days. A female mouse gets pregnant about 5 to 10 times each year and can give birth to a litter of 3 to 15 pups. On average, a female mouse atleast give birth to 35 to 56 pups. The mice reproduce each year, and the mother can mate immediately after giving birth.
Which taxon group is the largest? *
A. Domain
B. Species
C. Phylum
D. Kingdom
Answer:
Option D) Kingdom is the largest group in taxon
i hope this might be the answer and help u
PLEASE HELP MEE!!!
Diffusion, osmosis, facilitated diffusion, and active transport are?
A. ways cells make food
B. ways cells move materials around
C. ways cells use the sunlight
D. ways that cells reproduce
what two things help cells grow and live?
Answer:1. What promotes cell growth?
A growth factor is a naturally occurring substance capable of stimulating cell proliferation, wound healing, and occasionally cellular differentiation. Usually it is a secreted protein or a steroid hormone. ... Examples are cytokines and hormones that bind to specific receptors on the surface of their target cells.
2. what helps cells grow? For a typical dividing mammalian cell, growth occurs in the G1 phase of the cell cycle and is tightly coordinated with S-phase (DNA synthesis) and M phase (mitosis). The combined influence of growth factors, hormones, and nutrient availability provides the external cues for cells to grow.
Explanation:
Answer:
oxygen & organelles
Explanation:
Once we are grown up, many cells mature and become specialised for their particular job in the body and they don't reproduce so often. But some cells, such as skin cells or blood cells are constantly dividing. When cells become damaged in any way or die, the body produces new cells to replace them. This process is called cell division.
Melosis results in the formation of
A:2 genetically similar cells
B:2 genetically different cells
C:4 genetically similar cells
D:4 genetically different cells
Answer:
c 4genetically similar cells
60.
Which of the following is the first step in the production of insulin using recombinant DNA?
(A)Plasmid removed from E. coli.
(b)DNA coding for human insulin inserted in the plasmid.
(C)Plasmid closed by a special enzyme.
(S)Plasmid opened by a special enzyme.
Answer:
B
Explanation:
because it is the right answer
You move a 12-newton box up a 6-meter ramp.
In order to find out how much power you created, what would you need to know?
A.the acceration
B. the time
C.the distance
D.the temperature

How does the operator region of DNA work to regulate gene expression?
Answer:
Explanation:
Operator region are region of DNA (deoxyribonucliec acid) that repressors protein binds to prevent transcription.
Repressor is an example of regulatory protein they regulate the rate at which transcription of operon occurs . A repressor functions when its bounded to the operator and it prevent enzyme RNA (ribonucliec acid)polymerase from moving to DNA to transcribe the nitrogenous bases by placing a complementary base pair.
Activators are other regulatory proteins that bounds to its DNA binding site and increases transcription of the operon.
What phase is the moon in when there is
a total solar eclipse?
Answer:
New moon
Explanation:
Hope this helps
2. Your teacher instructed you to measure the salinity of brine you will use in
curing fish. Which of these will you do?
a.
Recall and master the procedure in using a salinometer
b. Review and master the procedure in using the thermometer
c. Review the procedure in using a psychrometer
d. Review the procedure in using a refractometer
Answer:
a. Recall and master the procedure in using a salinometer
Explanation:
Salinometer, which is also known as salimeter is a laboratory equipment used to measure the salinity of a solution. Salinity refers to the concentration/amount of salt in a solution.
According to this question, a student was instructed by his/her teacher to measure the salinity of brine used in curing fish. This means that to do this, the student will have to make use of a SALINOMETER. In order to use the salinometer, the student has to recall and master the procedure in using a salinometer.
Which statement defines a magnet?
1. An object that applies a force on electric fields.
2. An object that attracts or repels electrically conductive metals.
3. An object that can attract or repel other magnets and certain metals.
4. An object that applies a force on objects with mass.
Answer:
1. An object that applies a force on electric fields
Explanation:
Answer:
1. An object that applies a force on electric fields.
Explanation:
A magnet carries an electric force, therefore repelling or attract others with an electric force.
In which stage are people commonly referred to as teenagers?
infancy
childhood
adolescence
adulthood
Answer:
adolescence
Explanation:
infants are babies children are kids and adults are adults
Answer:
Adolescence
Explanation:
I chose this answer because adolescence is the stage in which people experience puberty and in puberty a youthful person forms from a child into an adult. The definition of adolescence describes the word teenager very well therefore adolescence is the correct answer.
The antibiotic, penicillin, kills a certain type of disease-causing bacteria. Recently,
however, a new strain of this bacteria was found that survives in the presence of
penicillin. What is the most likely explanation for this?
Helppp!!! ASAP please,
If you have 99 ml of water mixed with 1 ml of pollutant, the
concentration of pollutant is ___.
A 11
B. 2:10
C. 1:100
D 1:1000
Answer:
c
Explanation:
it is a1:100 ratio....
Where does meiosis occur in the body? Where does mitosis occur?
Answer:
Meiosis occurs in the primordial germ cells, cells specified for sexual reproduction and separate from the body's normal somatic cells. In preparation for meiosis, a germ cell goes through interphase, during which the entire cell (including the genetic material contained in the nucleus) undergoes replication.
Explanation:
Hope it helps!
If you dont mind can you please mark me as brainlest?
The text box shows observations made of an unknown organism. Based on this information, the organism most likely belongs to which kingdom? (SC.912. L.15.6)
UNKNOWN ORGANISM
.
.
.
Nucleus present
Mitochondria present
Cells grow in columns
Cell wall made of chitin
Decomposer
.
Animalia
Eubacteria
O Fungi
Plantae
Answer: C fungi
Explanation:
The unknown organism described in the text box has several key characteristics that can be used to identify which kingdom it belongs to. By examining the presence of a nucleus, mitochondria, and a cell wall made of chitin, one can make an educated guess as to which kingdom the organism belongs to.
What is the characteristic of an eukaryotic one ?The presence of a nucleus and mitochondria is a characteristic of eukaryotic cells, which indicates that the organism is likely not a prokaryote.
This rules out the Eubacteria kingdom, as prokaryotes are the only organisms that belong to this kingdom. Additionally, the presence of a cell wall made of chitin indicates that the organism is likely a fungus, as this is a common characteristic of fungi.
The fact that the cells grow in columns further supports the idea that the organism is a fungus, as this is a common growth pattern for fungi. The fact that the organism is a decomposer also supports the idea that it is a fungus.
Fungi are well known for their ability to break down organic matter, and as such, are often found in decomposer roles in ecosystems. This further supports the idea that the organism belongs to the Fungi kingdom.
In conclusion, based on the information provided, it is likely that the unknown organism belongs to the Fungi kingdom. The presence of a nucleus and mitochondria, the cell wall made of chitin, the growth pattern of the cells, and the fact that it is a decomposer all support this conclusion.
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Write a hypothesis about pH level on common household solutions based on physical and chemical properties.
Answer: If a solution is an acid, then it will have a pH below 7, and if the solution is a base, it will have a pH above 7 since the pH value is determined by the concentration of H+ and OH– ions.
Explanation:
Answer:
Sample Response: If a solution is an acid, then it will have a pH below 7, and if the solution is a base, it will have a pH above 7 since the pH value is determined by the concentration of H+ and OH– ions.
Explanation:
yall goin thank me later
Select the BAR CHART tab, and turn on Show numerical values. How many cells are in the interphase stage of their life cycle?
Answer:
87
Explanation:
A diagram that shows the amount of energy that moves from one feeding level to another in a food web is
A: food chain
B: energy pyramid
C: ecosystem
D: niche
Energy plays a important role in the propagation of life in ecosystems. Food chain shows the amount of energy that moves from one feeding level to another in a food web. Thus, the correct option is A.
What is food chain?A food chain is defined as the order of events in an ecosystem, where one living organism eats another organism, and later that organism is consumed by another larger organism.
The flow of nutrients and energy from one organism to another at different trophic levels forms a food chain. A system of interlocking food chains is called a food web.
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