Answer:
The testes are responsible for making testosterone, the primary male sex hormone, and for producing sperm. Within the testes are coiled masses of tubes called seminiferous tubules. These tubules are responsible for producing the sperm cells through a process called spermatogenesis
Explanation:
its copied but hope it helps
What molecules diffuse through the cell membrane without the use of energy and are required as reactants in photosynthesis?
A.glucose and oxygen
B.water and oxygen
C.glucose and carbon dioxide
D.water and carbon dioxide
Answer:
c
Explanation:
If the substances can move across the cell membrane without the cell expending energy, the movement of molecules is called passive transport. Consider substances that can easily diffuse through the lipid bilayer of the cell membrane, such as the gases oxygen (O 2) and carbon dioxide (CO 2)
explain the effect of germination on pea seed respiration
Answer:
"The affect of germination on the rate of cell respiration in peas is that in peas that are germinated, the rate of cell respiration is higher because the cells are growing/going through mitosis which requires energy/ATP in order to be carried out which is generated through the process of cellular respiration."
(Biology Cell Respiration Lab Flashcards | Quizlet)
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A mineral is defined as a natural substance that is neither animal nor plant, has a
A. specific composition and structure, and contains one or more silicon-oxygen tetrahedrons.
B. solid substance or element that is essential to human nutrition.
C. naturally occurring, crystalline, inorganic solid that contains only one element.
D. naturally occurring inorganic solid consisting of chemical elements in specific proportions, whose atoms are arranged in a repeated internal pattern.
Answer:
the answer is A. specific composition and structure, and contains one or more silicon-oxygen tetrahedrons.
Explanation:
What is a Objective Summary on Global Warming?
Answer:
Global warming is the long-term heating of Earth's climate system observed since the pre-industrial period (between 1850 and 1900) due to human activities, primarily fossil fuel burning, which increases heat-trapping greenhouse gas levels in Earth's atmosphere.
Explanation:
Answer:
The study, published last month in the journal Geophysical Research Letters, found that climate change is making summers hotter and longer, while shrinking the three other seasons. ... They found that over the nearly 60-year period, summers grew from an average of 78 to 95 days long
3. Name the division of the peripheral nervous system that is activated in each of these
examples:
a. You are startled when a friend pulls a practical joke and spooks you with a loud sound.
b. You move your arms and legs to take an evening walk.
c. Your stomach makes a gurgling sound as it digests your lunch.
d. Feeling a little stressed? You take a few breaths to calm down.
e. You are at the line, waiting for you race to start, and your heart begins to pound.
A startle reflex (a), digestion (c), breathing (d) and heart pumping (e) are responses of the ANS, while arm/leg movement (b) is a response of the SNS. They are major divisions of the PNS.
The peripheral nervous system (PNS) serves to connect the central nervous system to different organs, limbs, and skin.
The PNS can be divided into Somatic Nervous System (SNS) and Autonomic Nervous System (ANS).
The Somatic Nervous System is responsible for controlling the voluntary movements of the body.
The Somatic Nervous System is responsible for regulating the involuntary movements (reflexes) of the body.
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Why are leaves green:
3. Hydrogen peroxide is used as an antiseptic to kill bacteria in cuts and abrasions. Many of these are catalase positive, yet they are still killed by the actions of hydrogen peroxide. Why does this occur
Answer: Hydrogen peroxide is used as an antiseptic to kill bacteria in cuts and abrasions. Many of these bacteria are catalase positive,
Explanation: that’s it
What are two things that compose matter?
Answer:
All matter is made up of atoms, which are in turn made up of protons, neutrons and electrons. Atoms come together to form molecules, which are the building blocks for all types of matter. so it is like they all come together to make a group then they work together
Explanation:
How does energy flow in an ecosystem
Answer:
Energy is passed from organisms at one trophic level or energy level to organisms in the next trophic level. Producers are always the first trophic level, herbivores the second, the carnivores that eat herbivores the third, and so on.Hope this helps you !!Which part of a neuron is most similar to other cells in the body?
dendrite
axon
glia
body
Answer:
D. The Cell Body
Explanation:
The cell body has genetic information, keeps the neuron's structure, and gives it the energy it needs to do things. A neuron's soma, like other cell bodies, has a nucleus and other special parts.
Answer:
it is the body
Explanation:
I took it and got it right have a nice day
2 What is the function of proteins in the cell membrane?
F Facilitate the movement of particles across the cell membrane
G Receive chemical signals from other cells to begin a process in the cell
H Code for specific structures found in the cell membrane
J Create a hydrophobic layer that forms a barrier between the inside and outside of the cell
In __________ ribosomes can attach to the mRNA and begin translation even though transcription has not been completed.
Answer:
prokaryotes
Explanation:
All cells translate using ribosomes. Prokaryotic DNA lacks a nucleus, therefore translation happens before transcription. Simultaneous transcription and translation takes place.
What is translation in prokaryotes?In all cells, translation takes place at ribosomes. Prokaryotes translate DNA before transcription is finished because their DNA is not bound by a nucleus. Both transcription and translation take place at once. When a start codon on mRNA attached to a small ribosomal subunit is recognized by an initiator tRNA anticodon, translation can start. A second tRNA is recruited as the big ribosomal subunit joins the tiny subunit.
This is not conceivable in eukaryotes because translation takes place in the cytoplasm outside of the nucleus, whilst transcription takes place in a membrane-bound nucleus.
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Define the words condensation and evaporation.
Answer:
Condensation is the process through which the physical state of matter changes from the gaseous phase into the liquid phase.
Evaporation is the process through which the physical state of matter changes from the liquid phase to the gaseous phase.
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Select the correct location on the image.
Where is the protective covering of the axon?
Answer: myelin sheath
Explanation:
The axon is covered by a myelin sheath. The axon passes information to the next neuron or other cell in the body. A myelin sheath.
a zebra cell is just about to replicate its dna. what will happen first?
Answer:
The DNA unravels to make two strands.
I think this is the right answer
The voyage of the H.M.S Challenger was important because (1 point)
O it was a race won by Americans, to demonstrate superior sailing and ship building skills
O navigators were able to circumnavigate the globe for the first time in history, demonstrating celestial
navigation skills.
Ophysicists, chemists, and biologists conducted experiments and gathered collections that changed
exisisting scientific knowledge about the oceans.
O the first known data gathered about ocean currents and the Gulf Streams influence on weather were
documented by biologists and meteorologists.
Answer:
Physicists, chemists, and biologists, conducted experiments and gathered collections that changed exisisting scientific knowledge about the Oceans.
Explanation:
Trust in me
during the process of transcription in a eukaryote
What organs help to complete digestion in the small intestine?
Answer:
The muscles of the small intestine mix food with digestive juices from the pancreas, liver, and intestine, and push the mixture forward for further digestion.
What are the states of energy? List the Laws of Thermodynamics.
Answer:
The laws of thermodynamics define a group of physical quantities, such as temperature, energy, and entropy, that characterize thermodynamic systems in thermodynamic equilibrium.
Explanation:
how are plant and animal cells similar in structure
Structurally, plant and animal cells are very similar because they are both eukaryotic cells. They both contain membrane-bound organelles such as the nucleus, mitochondria, endoplasmic reticulum, golgi apparatus, lysosomes, and peroxisomes. Both also contain similar membranes, cytosol, and cytoskeletal elements.
Where would you most likely find terrestrial communities with temperate deciduous forests?
Answer:
The correct answer is - C) Europe.
Explanation:
the oceans lower atmosphere and contitents are the part of
Answer:
The oceans, lower atmosphere and contitents are the part of the Biosphere.
when a cell is in anaphase what happens to the dna?
Answer:
During anaphase, each pair of chromosomes is separated into two identical, independent chromosomes. The chromosomes are separated by a structure called the mitotic spindle.Explanation:
Which cellular process would be affected first if the structure labeled 3 were
destroyed?
Answer:
Photosynthesis
Explanation:
asked my teacher
What functional group is found on the head end of a lipid molecule?
a. carboxyl group
b. amino group
X c.omega-3 fatty acid
d. glycerol
Answer:
Glycerol is a small organic molecule with three hydroxyl (OH) groups, while a fatty acid consists of a long hydrocarbon chain attached to a carboxyl group.
Explanation:
hope it helps
Which of the following is a method used to prevent soil depletion? (2 points)
Dune fences
Contour farming
Adding fertilizers
Planting grasses on slopes
Answer: The answer is B
Energy flow in an ecosystem is best represented by _______.
How do scientists identify organisms that may have disease resistance genes?
Answer:
The use of genetic engineering in developing disease-resistant plants. The techniques of genetic engineering can be used to manipulate the genetic material of a cell in order to produce a new characteristic in an organism.
cyber ethics and law are same in nature true or false
Answer:
True as a technonerd it is ive study it
Explanation:
how are neurotransmitters and hormones similar and how are they different?
Answer:
Both neurotransmitters and hormones influence our thoughts and motivations, as well as our ability to learn and concentrate. However, neurotransmitters are short-lived while hormones act for longer periods of time.