Answer:
C) display each of the four key characteristics of the chordates at some point in the life cycle
Explanation:
To be characterized as a chordate, an organism must display each of the four key characteristics of the chordates at some point in the life cycle. Therefore, the correct option is C.
To be characterized as a chordate, an organism must display four key characteristics at some point in its life cycle.
These characteristics include having a notochord (a flexible rod-like structure), a dorsal hollow nerve cord, pharyngeal slits or pouches, and a tail.
It is not necessary for all four characteristics to be present simultaneously or in both the larval and adult stages. As long as the organism exhibits these characteristics at some stage of its life, it can be classified as a chordate.
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Pls helpppp
Word Bank
protons neutrons
nucleus mass atom electron
CDD2E2 large small electron cloud electrons
small
more
electrical
same
А
consists of the following subatomic particles known as
a or create
and
The
of the atom
can be determined from the number of
and neutrons.
as done
have a positive charge, and
your work
have a negative charge. When an atom has the same number
of protons and electrons, then the atom does not have a
charge. An atom also has
that are located on the outside of
the
This area is known as the
The
Comento
mass of the
is smaller than the mass of the protons and
1. Nucleus
2.Proton
3. Neutron
4. Mass
5. Proton
6 Proton
7 Electron
8. Electrical
9. Electrons
10 Nucleus
11 Cloud
12 Electrons
13 Neutrons
Heidi is a chocolate lover and eats chocolate daily. She has a bad break-out and her friend told her eating chocolate causes pimples. Heidi continues to eat chocolate every day for 2 weeks and counts the number of pimples she has on her face. The following 2 weeks she doesn't eat any chocolate and counts the number of pimples on her face
A. Independent Variable=
B. Dependent Variable=
C. Control=
Answer:
Independent variable
Explanation:
Because the pimples depends on the body hormones, and not just chocolate
nobody can answer this by their own part 1
Which eukaryotic kingdoms could be made up of multicellular organisms
Answer:
the inside
Explanation:
3. Label the three planes in the following image next to the three corresponding letters below the image.
CI
a)
hlwhos on this Imao ??
Answer:
The correct labels of the three planes are -
a. axial or transverse plane.
b. sagittal plane
c.. coronal plane
Explanation:
The human body can be divided into three planes on the basis of anatomy - the sagittal plane, the coronal plane, and the transverse plane
A sagittal plane is a longitudinal plane that divides the human body in the left and right parts.
A coronal plane is an anatomical plane that divides the body vertically into the back and front, ventral or dorsal (to be more specific).
An Axial or transverse plane, it is the plane that divides in the upper part of the body and lower part of the body.
Thus, the correct answer is -
a. axial or transverse plane.
b. sagittal plane
c. coronal plane
Which event is an example of a living thing responding to a stimulus?
A. A rock makes a loud sound as it falls down a cliff.
B. The temperature rises during the day.
C. The wind blows the roof off a house during a storm.
D. A houseplant grows toward the window.
Answer:
D. A houseplant grows toward the window.
Explanation:
All of the other answers are examples of nonliving things. A houseplant, however, is alive, and moves towards the window because it can receive more light.
How does genetic variation within a species increase the chance of survival in a species in a changing environment? explain and provide an example
For something to be considered living, it must be composed of at least one what?
Answer:
[tex]\boxed {\tt Cell}[/tex]
Explanation:
There are many characteristics of life, including, cells. A cell is a tiny unit of life that carries out many different processes.
If something is considered living, it must have at least one cell, but it can have more. For example, bacteria is unicellular and living. We (humans) are also living, but made of billions of cells.
Therefore, for something to be considered living, it must be composed of at least one cell.
what is a sum of people's skills, abilities, health and motivation?
Answer:
I think you are looking for the term Human Capital
Answer:Term. Human Capital. Definition. Sum of people's skills, abilities, health, knowledge and motivation.
Explanation:
What are the different sizes of carbohydrates
Cellulose, starch, glycogen, and most sugars
Define power and explain how to determine power. (4 poi
Answer:
Power is the rate of doing work
Power = work done/ time taken
Explanation:
Which is a difference between proteins and carbohydrates and fats?
Which of the following is a biotic factors in an ecosystem? O sunlight O nutrients in soil and water O precipitation O microorganisms
Answer:
microorganisms
Explanation:
Biotic factors include fungi,algae,bacteria etc.
While, Abiotic factors include soil, water ,sunlight and minerals
Answer:
[tex]\boxed {\tt D. \ Microorganisms}[/tex]
Explanation:
A biotic factor is a living thing in an ecosystem. For example: deer, rabbits, grass and trees are all biotic factors.
An abiotic factor is a nonliving thing in an ecosystem. Some examples include rocks, soil, and water.
Let's examine our answer choices.
Sunlight, nutrients, and precipitation are all nonliving, so they are abiotic factors. They can't be the correct choice.
That leaves: microorganisms. Microorganisms are very tiny organisms, like bacteria and amoebas. They are biotic factors, so the correct choice is D. microorganisms
Which process begins the formation of sedimentary rock?
the movement of sediment
the cementation of rock sediment
the breakdown of rock into sediment
the buildup of sediment in one location
Answer: C
Explanation:
Because sedimentary rocks have layers and are made of of those layers which are made up of the breakdown of rock into sediment
Nicholas has been biting his nails since he was a kid. He wants to break the habit so he puts bitter-tasting nail polish on his left hand and leaves his right hand without polish. After 3 days he notices his nails on his left hand have grown but he continued to bite his right-hand nails.
A. Independent Variable=
B. Dependent Variable=
C. Control=
Answer:
Independent: Putting the nail polish
Dependent: nail growth
Control: right hand, without polish
The experiments are known to have various variables. In Nicholas's case, nail polish is an independent variable, nail growth is a dependent, and right nails without polish are a control.
What are independent variables?Independent variables are defined as the test variables that in an experiment are not constant but are kept varied and manipulative causing various effects on the result of the hypothesis. Putting the bitter nail polish on the nails of the left hand is a test variable.
The dependent variable (outcome variables) along with independent results in cause and effect and are conditional on the independent factors. The length of nails is dependent as it is affected by the nail-biting.
On the other hand, the control variables are constant in that the factors are limited so that they do not interfere with other factors that affect the outcome. Fingernails on the right hand with no polish are controlled.
Therefore, nail polish is an independent variable.
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5. If the lever arm is longer than the load arm, this lever system would be
a class three lever system
b. a high speed system
c. a power system
d. disfunctional and is never seen in biological systems.
Answer:
B
Explanation:
nose pienso q es eza
Diffusion is an example of
a) passive transport
b) phagocytosis
c) endocytosis
d) active transport
Explanation:
Diffusion is an example of
a) passive transport
Answer:
[tex]\boxed {\tt A. \ Passive \ transport }[/tex]
Explanation:
First, let's define diffusion.
Diffusion is the movement of particles from areas of high concentration to low concentration. This movement is also known as moving down a concentration gradient. This process of diffusion occurs without any energy.
Since it doesn't require energy expenditure, diffusion is an example of passive transport.
Therefore, the correct answer is A. passive transport.
The _____ sits below the stage and varies the field for viewing the specimen.
Answer:
Diaphragm
Explanation:
This is also referred to as the iris.it is located under the stage of the microscope. It's main role is to control the quantity of light that gets to the specimen. The diaphragm is adjustable. Each if the 5 holes in the disc have varying diameter. And it is helpful for adjusting contrast and resolution as regarding the specimen
Where in the digestive system do the amounts of glucose, amino acids, and fatty
acids increase?
Answer:
The small intestine hope this was helpful.
1) Which of the following types of heterotrophs eat other animals?
A. omnivores
B. herbivores
C. carnivores
Answer:
A & C (Omnivores and Carnivores) eat other animals.
Answer:
A and c
Explanation:
heterotrophs eat other animals?
. omnivores and carnivores
Which feature do amber fossils have that mold fossils do not?
O preserved soft tissue
O organisms turned into rock
O solid copies of the original organism
O impressions of hard tissue left by organisms
Answer: preserved soft tissue
Explanation: just took the test!
The feature do amber fossils have that mold fossils do not preserved soft tissue. Thus, option A is correct.
What are fossils?
The fossil can be defined as the compression of the animal, plant or some organism that was living. It is compressed by the rocks or or settled in the water bodies in the form of sediments. The fossil residues have some of the carbon left in it.
This carbon is estimated by carbon dating in order to get the age of the fossil.The preserved fossils have carbon residue left which can be used as a source of information.
There are several types of the connective tissues: bones, ligaments, tendons, cartilage, and adipose tissue. In the foot, among all connective tissues, ligaments and tendons are the most abundant types. Ligaments and tendons mostly consist of densely packed collagen, which is the main structural protein of the connective tissues.
Therefore, The feature do amber fossils have that mold fossils do not preserved soft tissue. Thus, option A is correct.
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what biomolecule is part of the structure of ATP,nucleotides,and nucleic acids?
what is the amino acid responsible for increasing bone length
Answer:
alanine, arginine, glutamic acid, glycine, and proline—may play a role in bone health, principally through improved production of insulin and insulin‐like growth factor 1 and the synthesis of collagen and muscle protein
Explanation:
Which objective is referred to as the "scanning objective"?
Answer:
This question lacks options; they are:
a. 4x b. 10x c. 20x d. 100x
The answer is A
Explanation:
The objective lens is an integral part of a light microscope as it provides the viewer with the picture or image of the specimen. There are several types of objective lens depending on their magnification.
The lowest possible objective lens with the power of 4x is called the SCANNING OBJECTIVE. In combination with the eye/occular lens, it provides a magnification of 4x × 10 = 40x. The name of this lens comes from the fact that it provides a full scan of every part of the specimen being viewed before diversifying into a specific region by changing the objective.
Biology
heeeeeeeeeelp
Answer:
substrate
active site - inside enzyme
Enzyme-substrate complex
Explanation:
Accepta bond formed by the electrical attraction between two oppositely charged ions is a(n)_____.
Answer:
Ionic bond
Explanation:
A bond formed by the electrical attraction between two oppositely charged ions is an Ionic bond.
Jenna took an open bowl of leftover mashed potatoes from the refrigerator and noticed a difference in smell. She determined that chemical changes occurred since the potatoes were first placed there. Which observations most likely led to Jenna’s conclusion? a change of odor a decrease in temperature a change in moisture content a decrease in mass
Answer:
its a on ed
Explanation:
The observation that most likely led to Jenna’s conclusion is a change of odor. Thus, the correct option is A.
What are Chemical changes?Chemical changes may be defined as those changes through which one chemical substance gets transformed into another chemical substance. This occurs in a variety of steps and types.
A difference in the smell of leftover mashed potatoes indicates the change in odor which is observed by Jenna.
A decrease in temperature, a change in moisture, and a decrease in mass do not make any sense with respect to difference in smell.
Therefore, the observation that most likely led to Jenna’s conclusion is a change of odor. Thus, the correct option is A.
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what follows a first quarter moon but comes before a full moon
Please help!!!!!!!!!
Answer:
Explanation:
enzymes i think
Answer:
B
Explanation:
enzymes
Cells regulate chemical reactions through the use of proteins called enzymes, which are biological catalysts that help overcome activation
What is the importance of life processes in the human body?
Answer:
life processes is importance to carry out daily life activities.they help to produce energy and maintain homeostasis in the body