3. What does the name protozoa mean?
first organism
first animal
first cell
first microbe

Answers

Answer 1
a group of single-celled eukaryotes.

Related Questions

A sound wave that occurs at a quick rate and has a high frequency would produce
A
a loud sound.

B
a low-pitched sound.

C
a high-pitched sound.

D
a soft sound.

Answers

Answer:

C. a high-pitched sound

Explanation:

A high pitched sound

Why bacteria generally dies in the presence of oxygen ?​

Answers

Bacteria that require oxygen to grow are called "obligate aerobic bacteria". Without oxygen they generally die since these bacteria require oxygen to grow.

Their methods of energy production and respiration depend on the transfer of electrons to oxygen.

The gecko is a reptile that has the amazing ability to climb smooth surfaces - even glass. Recent discoveries indicate that geckos stick to smooth surfaces via van der Waals interactions between septae on their feet and the smooth surface. When not selling car insurance, geckos climb smooth surfaces.

a. How is this method of stickiness advantageous to the gecko over covalent interactions?
b. Given that van der Waals forces are among the weakest molecular interactions, how can the gecko's feet stick so effectively?

Answers

Answer:

a) This method of stickiness is advantageous over covalent interactions because it is weak and easily reversible.

b) The feet are equipped with millions of septae which collectively produce a synergistic effect that produces a powerful adhesive effect.

Explanation:

Geckos have their feet studded with tiny hair-like substances called septae, and these substances interact with the surfaces on which the Gecko climbs using weak van der Waals forces to produce stickiness.

a) The van der Waals interactions for the purpose of climbing is of more advantage over the covalent method of interaction because climbing involves a repetitive action of adhesion to the surface and destruction of such adhesion, and this involves the creation and the breaking of the bonds between the two surfaces easily. van der Waals forces being easily broken helps to achieve effective climbing. If the method of interaction is with a comparatively strong bond, the speed of creation and destruction of such bond is reduced, and the effectiveness of climbing is reduced.

b) Although van der Waals forces are weak forces, each foot of the wall Gecko has millions of septae that each create a van der Waals interaction, and the collective interactions produce a powerful adhesion causing the feet to stick effectively.

What is the correct order of the cell organization after cellular differentiation

Answers

Answer:

The cell organization hierarchy consists of (in order): cells ⇒ tissues ⇒ organs ⇒ organ systems ⇒ organisms.

Explanation:

What is an example of elastic potential energy?
a. stretching a rubber band
b. apple falling from a tree
c. A dog lying on the floor
d. throwing a ball

Answers

Answer:

a.stretching a rubber band

Answer:

An example of elastic potential energy is

A. stretching a rubber band.

Hope it will help :)

answer the correct answers to this assignment.

Answers

First one is 100% HH
first one 100%. second is 75%. third is 25%. fourth 25% and i think fifth is 25% as well

why is the moon invisible from earth during a new moon science

Answers

Answer:

Explanation:

During the New Moon the far side of the Moon is illuminated by the Sun, while the side that faces the Earth lies in darkness so the Moon is invisible. As the Moon follows its path from the New Moon position more and more of the Earth-facing side becomes illuminated resulting in the “waxing” phases.

The smallest unit that can carry on all the processes of life is a

Answers

Cell

The smallest unit that can carry on all the processes of life is a cell.

Answer:

Cell

Explanation:

Cell is the basic unit of life processes

Rattlesnake Species
100
Average Length (cm)
8 8 8 8 8 8 8 %
60
Mojave
Massasauga
Western
Diamondback
O
Black-tailed
1. Which type of information about rattlesnakes
does the bar graph above show? SCIL15.2
adaptation
evolution
mimicry
variation

I needdd helpppp plssss

Answers

Answer:

cool

Explanation:

this is easy I am not going to waist a lot of time but I will give you a cool video to watch in you tube

Given the sequence of DNA nucleotide bases TTAGCCTTG, give the complementary strand of RNA.

Answers

Answer:

AAUCGGAAC

Explanation:

Notice how it says RNA, which means T is replaced with U

Complementary sequences are A and U, and G and C

I have no idea how to do this please help!

Answers

Answer:

What are you supposed to do?

Explanation:

What are CD4 cells?
a. T-cells that have a CD4 receptor
b. B-cells that have a glycoprotein receptor
c. HIV antigens
d. red blood cells

Answers

Answer:

I'm pretty sure it is b because CD4 cells are the cells that are a glycoprotein

Explanation:

How do mosses and ferns reproduce?


with spores


with seeds


with eggs


with sperm
I think the answer is -> SPORES <-

Answers

It is with sperm and eggs, which are housed in spores in both species, so I’d say spores is the safest answer.

What hypothesis explains why all birds share similar characteristics?

Answers

Answer:

this is a common ... saw incredible similarities between birds and the theropod dinosaurs (especially ... Like all other reptiles, birds have scales (feathers are produced by tissues similar to ... for theropods are often more serious for the "thecodont" pseudo-hypothesis.

Explanation:

Answer:

The modern version of the "from the ground up" hypothesis argues that birds' ancestors were small, feathered, ground-running predatory dinosaurs that used their forelimbs for balance while pursuing prey

Explanation:

all life would come to an end if there are no green plants.
Explain

Answers

Answer:

So if there were no green plants, no food will be available for the other living organisms. ... During respiration, organisms use this oxygen for releasing energy. Without these 2 important aspects of food and oxygen, it would be difficult for life to survive on earth.

Explanation:

Some organisms reproduce sexually. Other organisms reproduce asexually. What are some benefits of asexual reproduction?

1.It It benefits organisms that are immobile

2.immobile.It gives offspring the genetic traits to survive in a particular environment

3. It uses less energy.

4. energy.All of of the above above

Answers

Answer:

3

Explanation:

because you don't have to ...you know

Answer:

It is 4 all of the above.

Explanation:

Yes because I got it right on test.

My main goal is to produce ATP energy

Answers

my main goal is to find my will to be alive

Answer:

mitochondria is my name

Explanation:

which of the following is the most complex
according to their cellular level of organization? A.
Hair B. Euglena C. Hydra D.Heart. bplease give explanations.​

Answers

d.corazon.ya que sin el no habria vida

Genomic imprinting may involve a single gene, a part of a chromosome, or a whole chromosome. Indicate if the following statements are true or false regarding this phenomenon
1. Genomic imprinting is permanent in the somatic cells of a given individual. _____________
2. Genomic imprinting is permanent and affects future generations. ____________
3. Methylation is the chemical change underlying genomic imprinting. _____________
4. If a gene is imprinted, the offspring can express both the maternal and paternal allele. _________

Answers

Answer:

1. True.

2. False.

3. True.

4. False.

Explanation:

A genome can be defined as the complete set of hereditary instructions that is typically found in the deoxyribonucleic acid (DNA).

Genome imprinting can be defined as an epigenetic biological process in which a genomic domain or genes of a living organism is marked biochemically with information that is related to parental origin. Thus, it is a non-Mendelian inheritance i.e genome imprinting is typically independent of Mendelian inheritance.

1. True: Genomic imprinting is permanent in the somatic cells of a given individual.

2. False: Genomic imprinting is permanent and affects future generations. It does not affect future generations because generally it is expressed in a parent of origin specific form.

3. True: Methylation is the chemical change underlying genomic imprinting.

4. False: If a gene is imprinted, the offspring can express both the maternal and paternal allele. It is independent of Mendelian inheritance.

Club foot is one of the most common congenital skeletal abnormalities, with a world-wide incidence of about 1 in 1000 births. Both genetic and nongenetic factors are thought to be responsible for club foot. C.A. Gurnett et al. identified a family in which club foot was inherited as an autosomal dominant trait with reduced penetrance. They discovered a mutation in the PITXI gene that caused club foot in this family. Through DNA testing, they determined that 11 people in the family carried the PITXI mutation, but only 8 of these people had club foot. What is the penetrance of the PITXI mutation in this family

Answers

Answer:

0.727

Explanation:

Penetrance can be defined as a measure of the association between a genotype and phenotype. In medical genetics, the penetrance of a mutation leading to the disease state is the proportion of individuals carrying the mutation and showing disease symptoms associated with such mutation. For example, if a mutation leading to the disease state has a 90% of penetrance, it is expected that 9 of each 10 individuals carrying the mutation will develop the disease, while the remaining 10% will not develop the disease. In this case, 8 of each 11 individuals carrying the PITXI mutation show symptoms compatible with the disease, and therefore the penetrance is 8/11 = 0.727 (73%).

water is a renewable resource that is constantly generated through the water cycle . in what areas might the water cycle be most limited ?
A) Canada .
B) south Africa .
C) south America .
D) Northern Africa .

Answers

I think c I’m not sure

Which event occurred during the Mesozoic era?


Cyanobacteria filled the water and air with oxygen.


Early humans began to make tools, harvest plants, and make cave paintings.


Pangaea began to break apart into many continents separated by shallow seas.


Pangaea, the super continent, was formed.

Answers

Answer:

Pangea began to break apart.

Explanation:

Humans wouldn't exist for millions more years. Pangea existed before the Mezoic, and the Cyanobacteria doesn't make sense.  (Not an expert though.

Why is it important for others to believe in science

Answers

Answer:

because science is one of the most important channels of knowledge

Explanation:

because of science you can create a new knowledge, improving education, and increasing the quality of our lives.

I hope it can help.

Despite the rampant depletion of trees in the natural forest in Ghana,it is still worth using wood as the main construction.Disscuss

Answers

Answer:

Hope this helps!

Explanation:

Forest resources support livelihood of people in jurisdictions in which forest is located. However, the forest size is gradually depleting continuously. The lack of information about the specific agents and forces of forest depletion is worrying. This is due to the inter-generational and intra-generational equity notions that affect mankind. As such, there is the need to maintain such resources on a non-declining value basis so as to maintain human welfare over time. Thus, the objective of this study is to empirically examine the determinants of forest depletion in Ghana over the 1970-2012 period in Ghana. This study employs multiple regression concepts to examine the effects of the determinants on forest depletion. The findings of the study indicate that gold extraction for export, population growth and logging increase the rate of forest depletion for the study period. More significantly, population growth reflected in settlement expansion, agriculture purposes, increased use of fuel wood, etc have greater effect on forest loss in Ghana. This suggests that, protection of the forest is necessary and sufficient condition for economic growth. As a result of these, both government and policy-makers need to safeguard the forest estate, by increasing afforestation schemes and also using part of the returns from gold exports to regenerate the forest.

Answer:

The main cause of deforestation is agriculture (poorly planned infrastructure is ... In 2019, the tropics lost close to 30 soccer fields' worth of trees every single minute. ... of Texas could be lost to rampant deforestation, according to a WWF report. ... These fires not only alter the structure and composition of forests,

Explanation:

Sickle-cell anemia is an inherited disease that affects red blood cells. In people who have this disease, one amino acid is substituted for another amino acid in a blood protein. What causes sickle-cell anemia?

A. Mutation
B. Replication
C. Translation
D. Transcription

Answers

Answer:

A - Mutation.

What is true of adaptations?
the answer is
They are passed along to offspring

Answers

Answer:

They are passed along to offspring

Explanation:

HOPE IT HELPS YOU

what is the name of these compound based on IUPAC nomenclature?​

Answers

Explanation:

plz mark my answer as brainlist you find it useful.

hope this will be helpful to you.

Answer:

Required answer in the attachment

I need help with this fossil record thing

Answers

Answer:

millions of thousands of species , most of which are evidence of all the fossil record

Explanation:

HOPE IT WILL HELP YOU

Please answer!!

Read the paragraph from the section "Types Of
Isolation."There are biological properties of organisms
that prevent breeding across different species. They are
known as reproductive isolating mechanisms (RIMs). A
mechanism is a process or method. Which option is the
BEST definition of "properties" as it is used in the
paragraph above?

Answers

The correct answer is B. Traits or features that take effect.

Explanation

Property is a word to designate any quality that identifies identifying something or someone, distinguishing it from its peers. It can refer to different issues such as its characteristics, capabilities, possibilities, physical appearance, among others. According to the text, "There are biological properties of organisms that prevent breeding across different species". So the answer is B. Traits or features that take effect.

A decomposer is an organism that gets its energy from ____________.

Group of answer choices

the food it produces during photosynthesis

the prey it hunts and kills

from other living organisms

dead plant and animals

Answers

A decomposer is dead plant and animals I’m sorry if I’m wrong have a good day/night!
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