Answer:
nucleus
Explanation:
Mendel developed pure lines of peas for his experiments because he wanted
them to be
A. control groups
B. fast-growing
O C. more productive
D. the same
Answer:
A
Explanation:
How does sleep help prevent dementia?
Answer:
Beta-amyloid is a metabolic waste product that’s found in the fluid between brain cells (neurons). A build-up of beta amyloid is linked to impaired brain function and Alzheimer’s disease. In Alzheimer’s disease, beta-amyloid clumps together to form amyloid plaques, which hinder communication between neurons. Impaired sleep has been associated with Alzheimer’s disease. Lack of sleep has been shown to elevate brain beta-amyloid levels in mice
What types of rocks do the numbers 2, 3, and 5 represent, in that order?
a. igneous, sedimentary, metamorphic
b. metamorphic, igneous, sedimentary
c. sedimentary, igneous, metamorphic
d. sedimentary, metamorphic, igneous
Answer:
d) sedimentary, metamorphic and igneous
Answer:
The answer is B
Explanation:
Which statement reveals a property that can be used to identify a mineral?
A mineral is found in Africa.
O A mineral is made in a laboratory
O Amineral is used to make medicine,
A mineral has hexagonal-shaped crystals.
I think it’s the last one but can someone confirm it
The statement reveals a property that can be used to identify a mineral is A mineral has hexagonal-shaped crystals.
Which is not a property that can be used to identify a mineral ?Colour is not a effects that can be used to determine a mineral. Natural occur in, solid, inorganic, and crystalline form, and the exact chemical arrangement , have five properties of a mineral.
Thus, option "D" is correct, having hexagonal-shaped.
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PLEASE HELP I NEED THIS QUESTION ASAP :((
Cancer cells are body cells that do not function properly, leading to abnormal growth. Which process does not function normally in cancer cells?
1. Osmosis
2. Cell cycle
3. Photosynthesis
4. Cellular Respiration
Answer:
cellular corrert me if I am wrong
Explanation:
have a nice day baby
What two regions of the abdomen does the abdominopelvic cavity separate?
(Anatomy)
Answer:
the abdominal cavity and pelvic cavity, but there is no physical barrier between the two. :)
Identify the structures of the cells and the routes by which water and minerals pass through to the vascular tissue.
Answer:
Xylem
Explanation:
Xylem is a conducting tissue found in vascular plants in which most plant use to obtain water and minerals they need through their roots. Water and mineral moves from the soil to roots to stems and to leaves. The minerals such as potassium (K+), Calcium (Ca2+) travels in dissolved for in the water with various organic molecules supplied by root cells.
Water and minerals enter the root by different paths but converge in the stele, or central vascular bundle in roots.
Water conducting cells is known as tracheary elements.
Which best defines genes?
Which of the following activities occurs in BOTH prokaryotic and eukaryotic cells?
Answer:
Cellular Respiration
Explanation:
Both prokaryotic and eukaryotic cells get the energy they need through the process of cellular respiration.
Hopefully this helps! :)
Which atomic particle makes bonds between two elements?
Answer:
It would be electrons.
Explanation:
Which of the following organisms are prokaryotes?
1. plants
2. animals
3. bacteria
Question 4 of 5
The box shows the element nitrogen as it appears in the
periodic table.
N
Nitrogen
14.0
Which two parts are needed to make a neutral atom of nitrogen?
O A. Electron clouds with a total of 14 electrons
I B. A nucleus with three protons and four neutrons
C. A nucleus with seven protons and seven neutrons
O D. Electron clouds with a total of seven electrons
Answer:D & C
Explanation:
What are the four major functions all cells perform
cells provide six main functions : they provide structure and support, facilitate growth through mitosis, allow passive and active transport, produce energy, create metabolic reactions and aid in reproduction.
Explanation:
hope this helped you
What Earth materials are represented by the numbers 1 and 4?
A. igneous rock and magma
B. lava and magma
C. sediment and magma
Answer:
Sediment and magma
Explanation: I took the test and I got it all right so i hope this helped :)
4) Spindle fibers form
Which of the following choices places the processes in order as they occur during the cell cycle?
Answer:c
Explanation:
Answer:
its c
Explanation:
The image below is part of a computer-generated model representing covalently bonded nonmetal atoms arranged in a crystal lattice. Four small atoms are bonded to each large atom. The structure extends in every direction.
The covalent network solid represented by the model likely
A.
is hard and strong.
B.
has a low melting point.
C.
is an electrical conductor when in the molten state.
D.
is a good conductor of both heat and electricity.
Answer:
A: is hard and strong
Explanation:
The crystal lattice shown is that of silica, SiO2. For a single molecule of silica to form, the silicon atom would have to form double bonds with each oxygen. Instead, each atom of silicon forms a bond to four different oxygen atoms, each of which is bonded to another silicon atom. This forms a covalent network.
Covalent network solids have the following properties:
They are hard and strong.
They have high melting points.
They usually do not conduct heat.
Silicon dioxide is an electrical semi-conductor.
Hope this helped :)
The structure extends in every direction. The covalent network solid represented by the model likely is hard and strong. Thus option A is correct.
what is covalent network ?
The Covalent Network describes the progressive decentralization of Covalent toward both community-owned and community-run protocol, It has the capabilities like Big data tools compatible, Multi-chain compatible, Storage efficient, Network efficient etc.
Covalent network solids are hard and strong, high melting points, usually do not conduct heat, Silicon dioxide is an electrical semi-conductor.
Covalent networks are large, hard and three-dimensional arrangements of atoms which are bonded together by covalent bond , for example Boron, Carbon and Silicon all form covalent networks.
Thus option A is correct.
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whats the difference between aerobic and anaerobic respiration
Answer:
Aerobic respiration is a set of metabolic reactions that take place in the presence of oxygen, occurring in a cell to convert chemical energy into ATPs. Anaerobic respiration is a process of cellular respiration where the high energy electron acceptor is neither oxygen nor pyruvate derivatives.
Explanation:
Which of the following statements is not supported by the cell theory?
Although some structures in humans are not made of cells, these structures are made and supported by living cells.
There are some non-cellular entities that are considered non-living even though they demonstrate characteristics of life.
Humans create a zygote by combining gametes with half the amount of information as a regular body cell.
The mixing of organic matter is a common way for new species of organisms to be formed from non-living matter.
Answer:
Theory 1
Explanation:
All structure are made of cells.
Cells - Tissue - Organ - Organ System - Organism
Pls help i dont understand :( will give Brainliest + 25 points!!
Answer:
competition
Explanation:
because one die and the other lives
Write two differences between the unicellular and multicellular organisms.
Answer:
1.a unicellular organism has only 1 cell while a multicellular organism has 1 or more cell
2.a unicellular organism is a prokaryotic cell or bacteria, while a multicellular organism is mainly a eukaryote
Explanation:
Answer:
Unicellular organisms are single-celled
Multicellular organisms are multi-celled
Unicellular organisms include bacteria
Multicellular organisms don't include bacteria
Explanation:
Hope this helped!!
difference between valley and plateu
Answer:
A valley is a landforms carved by a river where as a Plateu is carved via wind
Which scenario best describes motion?
A.) a toy train in position 4 on a number line
B.) a race track that is 100 meters long
C.) a ball rolling from point A to point B
D.) a student living 150 miles from Chicago
Imagine that a biological anthropologist 10,000 years in the future is examining our fossil remains. The anthropologist notices that humans have broad incisors and molars with rounded cusps. How do you think the anthropologist would interpret these traits---what diet would these traits indicate
Answer:
They were frugivores
Explanation:
Frugivores are animals that mainly eat raw fruits, vegetables, roots, seeds, shoots, etc. Frugivores need to eat diverse fruits and succulent fruit-like vegetables to fulfill their nutritional requirements, although they can supplement this diet with flowers, nectar, small insects, etc. Among their adaptations for fruit consumption, frugivore teeth are clearly distinct, having broad incisors to peel tough fruit rinds. Moreover, these animals generally have long small intestines to digest the fruit.
Which statement provides the STRONGEST evidence in support of the scientists argument?
Effects of Temperature
on Enzyme Activity
Enzyme Activity
0 10 20 30 40 50 60
Temperature (°C)
Which is the MOST valid conclusion based on this graph?
A mitochondrion has two membranes. The inner membrane is highly folded, as shown in the diagram below.
Outer
membrane
Inner
membrane
The folds greatly increase the membrane's surface area. This improves the ability of the mitochondrion to do
which of the following?
O convert solar energy to chemical energy
Odigest metabolic wastes in the organelle
O produce ATP during cellular respiration
move the cell through water
Answer:
convert solar energy to chemical
Explanation:
the mitochondria is the power house of the cell
The folds greatly increase the membrane's surface area. This improves the ability of the mitochondrion to produce ATP during cellular respiration. Thus, the correct option is C.
What is Cellular respiration?Cellular respiration is the process through which biological fuels are oxidized in the presence of an inorganic electron acceptor in the cell such as oxygen to produce large amounts of energy, to drive the bulk production of ATP (Adenosine triphosphate) in the mitochondria.
A large number of folds are present in the mitochondrial membrane to increase the capacity of the mitochondrion to synthesize ATP molecules, the inner membrane of the mitochondria is folded to form cristae in the membrane. These folds allow a much greater amount of electron transport chain (ETC) enzymes and ATP synthase to be packed into the mitochondrion membrane.
Therefore, the correct option is C.
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Can a person keep a ringneck dove and a diamond dove together?
Answer:
Ringnecks and diamond doves can be kept as pets in a variety of ways. They can be a single bird, bonded to its owner with or without free flight within the home, or they can be a breeding pair, bonded to one another, producing young
Which statement best explains how the cell membrane helps a cell remove waste? A. Carbon dioxide molecules pass out of the cell through the layer of phospholipids
Mitosis occurs in _________________ cells and results in ___________________
c. What percentage of the offspring will be round? _______________
6. RR x Rr
a. What are the different kinds of gametes these parents can produce? ___________
b. Make a punnett square
porcierto una chica me gusta xd y la ayude
Answer:
Technical there is a 50% chance but I think the answer would actually be 25% chance of being round
