True or False

a. The sinus node generates an electrical impulse.

b. The bundle of His transfers the impulse to the AV node.

c. The fiber group stimulates only the right ventricles.

d. The cardiac cycle represents one complete heartbeat.

e. Relaxation events are referred to as diastole.

Answers

Answer 1

Answer:

Explanation:

A-true

B-false

C-false

D-true

E- true


Related Questions

please help me. i will give brainliest

Answers

Answer:

star 2 does

the rest are either missing the grouped spectrum after 6k or the dark solid spectrum at 4500ish

Explanation:

Which is a black rat snake considered?
carnivore
herbivore
omnivore

Answers

Answer:

Carnivore

Explanation:

Carnivore is an animal that eats meat.

Omnivore eats both plants and meat.

Herbivore only eats plants.

Hope this helps :)

Which event shows conditions that lead to natural selection?

A-Weeds are removed by a gardener from a public park

B-Wild horses are tamed over many years and selectively allowed to reproduce.

C-A crab produces millions of offspring in a year, but few survive to adulthood.

D-Farmers collect the largest corn seeds to plant in their fields the following year.​

Answers

Thy answer shall be C.

Crocuses can bloom in the winter, while dahlias bloom in the fall. This is due to different responses to daylight length or _________.
A. Sun rays
B. Photoperiodism
C. phototropism
D. geotropism

Answers

Answer:

It's becoz of sun rays.....

The population of most cities are numbered in _____________

Answers

Explanation:

muchos miles, y aveces cientos de miles

Large teeth is a dominant trait in piranhas. Which of the following shows the
correct probability of offspring traits if a heterozygous male and female were to
mate?

Answers

Answer:

You didn't include the following

however 2 heterozygotes

build a punnett square which is a just a box with the alleles contributing from each parent one on the top and one on the side

       A      a

A    AA     Aa

a      Aa   aa

That is what would happen so 25% chance of AA and 25% of aa and 50% chance of a heterozygote

Brainly won't allow the h o m o zygote to be included as an answer

Explanation:

If the sphincter allows any leakage from the stomach, some of this acid might move back into the esophagus, causing
1. Heartburn
2. Saliva
3. Constipation
4. Diarrhea

Answers

1, heartburn. Keep stomach acid in the stomach!
Heartburn bc of the acid In your stomach

What makes echinoderms unique to all other animals? (think of systems/structures they
have that no other animal has!)

Answers

Although these spines may look like components of an exoskeleton at first glance, echinoderms do not have an exoskeleton. This is partly due to their symmetry and their spiny endoskeleton.

if a middle level species were removed from the community, how might the flow of energy be affected? Explain your answer.

Answers

There will be far-reaching effects. If for example, the producer is removed, the consequences could be dire. Producers capture sunlight directly and make chemical energy for consumers. If this is the only producer that a particular consumer eats, it may die as well.

The special job an organism plays in it's ecosystem is it's __________.

biome

population

niche

biodiversity

Answers

The answer would be niche.

Answer:

niche

Explanation:

mostly out of deductive reasoning as to how each word fits into the sentence while still having the sentence make sense, but also, a "niche" in whatever use you're applying it toward is literally defined as a specialty.

Complete a Punnett square for the cross-pollination of a female (TT) and a male (Tt). Write in the correct answers to complete the square.

Answers

first row: T, T

first column: T, t

row 2, column 2: TT

row 2, column 3: TT

row 3, column 2: Tt

row 3, column 3: Tt

it doesn't matter whether you put the female (TT) in the first row or the male (Tt) in the first row. you can interchange those positions.

i hope this helps! have a great day :)

which ecosystem has the greatest biological diversity and therefore the highest sustainability

Answers

Answer:

Tropical rain forests on land and coral reefs in marine systems are among the most biologically diverse ecosystems on Earth and have become the focus of popular attention.

Explanation:

definitely D because a rainforest is extremely vast when it comes to different species

Answer:

Species richness is greatest in tropical ecosystems. Tropical rain forests on land and coral reefs in marine systems are among the most biologically diverse ecosystems on Earth and have become the focus of popular attention.

Describe how proteins form (polypeptide)

Answers

Answer: Atoms were created after the Big Bang 13.7 billion years ago. As the hot, dense new universe cooled, conditions became suitable for quarks and electrons to form. Quarks came together to form protons and neutrons, and these particles combined into nuclei.

Answer:

Within a protein, multiple amino acids are linked together by peptide bonds, thereby forming a long chain. Peptide bonds are formed by a biochemical reaction that extracts a water molecule as it joins the amino group of one amino acid to the carboxyl group of a neighboring amino acid.

Echinoderms are organisms that live on the ocean floor. Echinoderms include sea stars and brittle stars, sea urchins, and sea cucumbers. Sea cucumbers move by swimming or squirting water. Sea stars and brittle stars walk on the seafloor using tube feet. Describe the environment in which these organisms live. Predict the adaptations that would be beneficial to echinoderms for living in this environment.

Answers

The environment? Its definitely sea. Place with full water and weird fish.

The adaptations. Echinoderms change colour for adaptation while starfish bony, calcified skin, protects them from most predators, and many wear striking colors that camouflage them or scare off potential attackers.

A defendant's attorney can claim insanity in his or her defense for a crime against another person.


False

True

Answers

Answer: The answer is true.

Answer:

True

Explanation:

edge business law 2023

where is sucrose transported to in plants?
(name like either roots, leaves, where?)

Answers

To all parts but particularly u can say phloem sap

Process performed by plants (producers) using the sun's energy to make their own food.
A. Conduction
B. Photosynthesis
C. Fission
D. Fusion

Answers

Answer: B.Fotosintesis

Explanation:

Answer:

option B

Explanation:

photosynthesis is the correct answer.

plz mark my answer as brainlist plzzzz.

hope this will be helpful to you.

What does a mass extinction look like in the fossil record?​

Answers

There is less diversity hope this helps

Answer:

There is less diversity in the fossil record

Explanation: when compared to older rock layers the fossil record will be less diverse

Biology Grade 8
Match correct terms/meaning given in column 'B' with their correct levels
given in column 'A' with Column 'B'

Column A
a.Cell
b.Plant
c.Tissue
d.nose
e.organelle

column B
a.Group of similar cells
b.Heart
c.Ova
d.Organ
e.Group of different cells
f.Nucleus
g.organism

Answers

Answer:

cell=ova

plant=organism

tissue=group of similar cells

nose=organ

organelle=nucleus

Give the one chain to the following DNA AATAGGTACCCATGTGCA To write the complementary dna chain. How many nucleotides does this molecule have in total? How many are the bonds that unite nucleotides together?

Answers

Answer:

AATAGGTACCCATGTGCA (original DNA sequence)

TTATCCATGGGTACACGT

Explanation:

Adenine (A) pairs with Thymine (T). Guanine (G) pairs with Cytosine (C). There are 18 nucleotides in this sequence, as seen by the number of base pairs there are. Hydrogen bonds hold together the matching base pairs.

what kind of reproduction occuurs with the help of honey bee ?​

Answers

Answer:

Honey bees actually have two types of reproduction. The first type is the kind we normally think of the queen mates, lays eggs, and new bees are born. The second type is whole-colony reproduction. This occurs when the colony splits into two parts.

Explanation:

what is a tumor and what does it have to do with mitosis
ASAP
will give brainliest

Answers

Answer:

Tumors constantly undergo mitosis.

Explanation:

Tumors are (generally) considered to be cancerous; therefore, they divide uncontrollably. Tumors undergo mitosis just like any other cell in your body but can be dangerous over time if not dealt with.

Answer:

What is cancer and what does it have to do with mitosis?

Cancer: mitosis out of control

Mitosis is closely controlled by the genes inside every cell. Sometimes this control can go wrong. If that happens in just a single cell, it can replicate itself to make new cells that are also out of control. These are cancer cells.

Explanation:

Forgive me if my answer is wrong and please give me BRAINLEST I really need them just give me 5 star rating to give me BRAINLEST

Which type of rock does B represent?
Igneous rock
Metamorphic rock_
Rock formed by compaction
Rock formed by heat and pressure

Answers

it would be igneous rock

Answer:

Igneous rock

Explanation:

Solidified lava is an igneous rock.

which of the following is a stimulus, which response?
A. The recess bell ringing in a elementary school
B. Your mouth watering at sight of food on a plate
C. A sudden drop in air temperature
D. A flu virus entering your body
E. Getting "butterflies" in your stomach before giving a speech

Answers

Answer:

A. Stimulus

B. Response

C. Stimulus

D. Stimulus

E. Response

Explanation:

PLS HELP IM TIMED!!
Fish eggs that are fertilized externally are typically clustered and covered in a thick, jelly-like substance.
What is most likely the function of this substance?
a) to protect the eggs and keep them consistently warm inside the parent's body
b) to protect the eggs and keep them safe from any harmful environmental conditions
c) to ensure that only a few of the eggs are fertilized by sperm since external fertilization is uncommon and risky
d) to ensure that only some of the eggs are fertilized by sperm so others can be fertilized internally

Answers

Answer:

Don't get me wrong but I think it's B

Explanation:

Answer:

The correct answer is B: to protect the eggs and keep them consistently warm inside the parent's body.      It is correct on edge

Explanation:

Hope this helps and good luck:)

which of the following are not considered as examples of asexual reproduction of plants?

a. ginger, onion, garlic
b. camote, carrot,potatoes
c. banana,bamboo,turmeric
d. avocado, papaya,mango tree​

Answers

answer = c
step by step explanation
I think the answer is C

An_____looks like a circle with two longer, flatter sides.
A) axis
B) inertia
C) ellipse
HELP please IMMA GIVE BRANLIEST

Answers

Answer:

An ellipse looks like a circle with two flatter, longer sides.

Explanation:

An ellipse is essentially a fancy word for an oval. Your answer is C!

An Ellipse looks like a circle with two longer, flatter sides. So, the correct option is (C).

What is an Ellipse?

An ellipse is defined as a plane curve that encloses two focal points such that for all points on the curve, the sum of the two distances to the focal points is a constant that generalizes to a circle, which is of particular type is an ellipse with the same two center points.

An ellipse having eccentricity less than one represents the locus of points, the sum of whose distances from two foci of the ellipse is a constant value. This looks like a circle with two longer, flatter sides.

Examples of ellipsoids in our daily life are the shape of an egg in two dimensions and the running track in a sports stadium.

Thus, an Ellipse looks like a circle with two longer, flatter sides. So, the correct option is (C).

Learn more about Ellipse, here:

https://brainly.com/question/14281133

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Which small-scale mutation would be most likely to have the least negative effect on the function of a protein?
A substitution of one base for another within the sequence
A base deletion near the start of a gene
A base deletion near the end of the coding sequence, but not in the terminator codon
A deletion of three bases near the start of the coding sequence, but not in the initiator codon

Answers

Answer:

substitution

Explanation:

has a chance to cause silent mutation, which doesnt do anything to a protein.

The small-scale mutation that would most likely have the least negative effect on the function of a protein is ; ( A ) A substitution of one base for another within the sequence.

A substitution of one base for another within the sequence of a protein will cause an insignificant/silent mutation within the protein sequence and this mutation will not be evident in the protein.

When a base is deleted either near the start of a gene or near the end of the coding sequence, it will have a significant effect because this will change the sequence of the DNA ( due to the deletion of at least one nucleotide ).

Hence we can conclude that the small-scale mutation that would most likely have the least negative effect on the function of a protein is ; A substitution of one base for another within the sequence.

Learn more : https://brainly.com/question/13573561

The pituitary gland is most similar to:
A A worker in a factory
B A mail carrier
C The boss of a big office
D A security guard or police officer

Answers

Answer:

C. The boss of a big office

Explanation:

It tells all the other hormones what to do

Have a great day!

If a middle level species were removed from the community, how might the flow ofenergy be affected? Explain your answer.

Answers

There will be far-reaching effects. If for example, the producer is removed, the consequences could be dire. Producers capture sunlight directly and make chemical energy for consumers. If this is the only producer that a particular consumer eats, it may die as well.
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