explain about Biogenetic theory?

Answers

Answer 1

Answer:

biogenetic theory mean the development and evolution processed by Ernst heackel in Germany in the 1860 s . it is one of the several recapitulation which posit that the stage of development for an animal embryo as the same as other animal or adults stage or forms.


Related Questions

Many resources pose risks to human health, for example poisonous chemicals, fuels and explosives. Use of these resources is often considered to be sustainable because people must follow safety rules when they use them.

Do you think the use of asbestos could be made sustainable in the same way?

Answers

Answer:

The answer is:

Explanation:

Yes, since asbestos also could be poisonous and I think it could be sustainable in the same way

Hope this helps....

Have a nice day!!!!

The LMand LNalleles at the MN blood-group locus exhibit codominance. Give the expected genotypes and phenotypes and their ratios in progeny resulting from the following crosses.a.LMLM x LMLNb.LNLN x LNLNc.LMLN x LMLNd.LMLN x LNLNe.LMLM x LNLN

Answers

Answer:

Please find the expected genotypes and phenotypes of the progenies of each cross below.

Explanation:

In the MN blood-group locus of the gene, alleles LM and LN exhibit codominance i.e one allele is not dominant or recessive to the other, hence, they are both expressed when they occur in a heterozygous state (MN).

Considering the following crosses (find the punnet square attached);

a)LMLM x LMLN - The progeny are LMLM and LMLN in the genotypic ratio 1:1. Phenotypic ratio is Blood type M (1) : blood type MN (1)

b) LNLN x LNLN - The progeny are all LNLN offsprings with a phenotypic and genotypic ratio 4:0. All offsprings will have a blood type N (4)

c) LMLN x LMLN - The progenies are LMLM, LMLN and LNLN in the genotypic ratio 1:2:1 respectively. The phenotypic ratio is Blood type M (1) : L

Blood type MN (2) : Blood type N (1)

d) LMLN x LNLN - The progeny are LMLN and LNLN with genotypic ratio 1:1 and phenotypic ratio blood type MN (1) : blood type N (1)

e) LMLM x LNLN - The progeny are all LMLN offsprings with penotypic ratio blood type MN (4)

Two students are comparing scientific experiments to investigations. They came up with the following ideas. Student A: Testing plant growth in different types of soils Student B: Comparing the water level in a lake during different times of the year Which student gave an example of a scientific experiment? Student A because it requires experimental and control groups Student B because it requires a hypothesis Student A because it is preferably done in natural settings Student B because it is preferably done across a long period of time

Answers

Answer:

Student A because it requires experimental and control groups

Explanation:

Answer:

i took the test, its A

Student A because it requires experimental and control groups

Explanation:

i want some questions on mental health concerns on pandemic based on yes or no please give me questions​

Answers

Answer:

pendemic effect our society and then make many people stress/mental illness. yes or no

Explanation:

question that relate to what you want

Has mental health increased or decreased during the pandemic?
Has mental health become a greater problem since the start of the pandemic?

what are some questions an environmental biologist might ask about qhat they are studying

Answers

they could ask what biology is? what the meaning of biology us?

PLS HELP ASAP
ILL GIVE BRAINLY

Contrast the usefulness of absolute and relative dating techniques.

Answers

Answer:

In relative dating, fossils are dated according to the depth at which they were buried While in the absolute dating, isotopes of carbon are used for dating fossils. The absolute dating is more precise than relative dating because it tells the exact age of the fossils.

cytoplasm and nucleus together constitute which part​

Answers

Answer:

Cytoplasm and nucleus together constitute Protoplasm .

protoplasm is your answer mate

Which of the following statements are true for all
biomolecules?
Select three correct answers.
They have nitrogen elements.
They have covalent bonds.
They have a carbon backbone.
They have hydrogen elements

Answers

Well it’s 100% B and D
I think C is the third answer

The statements that are true for every biomolecules are:

They have covalent bonds.They have a carbon backbone.They have hydrogen elements

Biomolecules are molecules obtained or produced by living organisms. There are four biomolecules in nature; proteins, carbohydrates, lipids and nucleic acids.

Since all biomolecules are from living sources, it means they all contain carbon element in their structure.

Also, the carbon is linked to hydrogen atoms in all biomolecules by COVALENT BONDS.

Therefore, every biomolecule has the following:

They have covalent bonds.They have a carbon backbone.They have hydrogen elements

Learn more: https://brainly.com/question/18334068?referrer=searchResults

what are biogeochemical ?​

Answers

Biogeochemical cycle, any of the natural pathways by which essential elements of living matter are circulated. The term biogeochemical is a contraction that refers to the consideration of the biological, geological, and chemical aspects of each cycle.

Select the scenarios that describe an abiotic factor that is density independent. Select the TWO answers that are correct.

a. Fir trees grow in number, increasing the amount of food available for moose
b. Heavy and continuous rains flood the land, submerging habitats.
c. Lightning strikes a tree and begins a fire that clears the land.
d. Ticks infesting moose weaken the moose's health and reproductive success.
e. Frigid temperatures flow into the area, causing hypothermia and death.

Answers

Answer: Option B and C.

Heavy and continuous rains flood the land, submerging habitats.

c. Lightning strikes a tree and begins a fire that clears the land.

Explanation:

Heavy and continuous rains flood the land, submerging habitats.

Lightning strikes a tree and begins a fire that clears the land.

The above are example of density independent abiotic factors because rainfall and lightning affect the population size of the environment by decreasing it's population sizes.

Abiotic factors are the non living part of the environment and they include rain fail, temperature,lightning, humidity e.t.c.

Density independent abiotic factors are factors that decrease or increase the population size of the ecosystem.

Therefore, Heavy and continuous rains flood the land, submerging habitats.

cLightning strikes a tree and begins a fire that clears the land are density independent factor because they decrease the population size.

The scenarios that describe an abiotic factor that is density independent are ; ( B and C )

Heavy and continuous  rains flood the land, submerging habitats ( B )Lightning strikes a tree and begins a fire that clears the land ( C )

Abiotic factors are Nonliving components of an ecosystem that has a significant effect on the ecosystem such as ; Rain, rocks, Temperature and humidity. Density Independent factors are factors in an ecosystem that can cause the decrease or increase of the population size of an ecosystem.

Heavy and continuous rainfall is an abiotic factor that has the ability to decrease the population of an ecosystem by submerging organisms habitats.

Lightning striking a tree and setting it ablaze which clears the land also reduces the population of the ecosystem because the fire will lead to loss of habitats and death of some organisms .

Hence we can conclude that The scenarios that describe an abiotic factor that is density independent are Heavy and continuous  rains flood the land, submerging habitats and Lightning strikes a tree and begins a fire that clears the land .

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The largest population of a particular species that an ecosystem can support
is the ecosystem's
O A. biome
O B. biodiversity
O C. carrying capacity
O D. keystone species
VOU
O Type here to search
D
SA

Answers

The largest population of a particular species that an ecosystem can support is the ecosystem's carrying capacity.

What is a carrying capacity?

Carrying capacity in ecology refers to the number of individuals of a particular species that an environment can support.

Every ecosystem has a maximum number of biotic components that it can support to ensure the sustainability of its resources.

Therefore, the largest population of a particular species that an ecosystem can support is the ecosystem's carrying capacity.

Learn more about carrying capacity at: https://brainly.com/question/2375972

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Before a big soccer game Charlie always eats a big dinner. Which characteristic of life does this fact best describe?


A: Living things reproduce

B: Living things respond to their environment.

C: Living things use energy

D: Living things grow and develop

Answers

Answer:

c

Explanation:

C. Living things use energy

Marking as brainliest

name another type of compound ( besides polysaccharides) that fits the definition of polymer

Answers

Answer:

A protein is also a polymer. The monomer in this case would be the subunits comprised of amino acids.

DNA. The subunits are nucleoTides.

Explanation:

Brainliest please

Which statement applies only to the axial Skelton not the appendicular skeleton

Answers

Answer:

B

Explanation:

Question 8 of 10
What three things most directly affect carrying capacity?
A. Wood, electricity, and water
B. Money, medicine, and food
C. Water, money, and technology
D. Food, space, and water
SUBMIT

Answers

Answer:

food space and water

Explanation:

Angiosperms exhibit a great variety of forms, as well as means of obtaining nutrients. Angiosperms can be ___________. (Circle the correct answer.) g

Answers

Answer: Options are not given.

Here are the options.

A. Autotrophs

B. Saprophytic

C. Parasitic.

D. Both a and b.

E. All of the above.

The correct option is all of the above.

Explanation:

Angiosperms are flowers and seed producing plants and their seeds are enclosed in ovary.The angiosperms are vascular seed plants in which the ovule (egg) is fertilized and then develops

into a or become a seed in an enclosed hollow ovary. They are most diverse and largest group of animal kingdom.

Some angiosperms are autotrophs that uses carbondioxide, water and sunlight energy to produce their own food and releases oxygen.

Examples include maize, rice..

Some angiosperms are saprophytic which obtain energy from dead and decaying matter in the soil. They form a symbiotic relationship with fungi. Example is Neottia.

Some angiosperms are parasitic and they attach to their host through haustoria their by feeding on the host and causing harm on the host.

what would happen if the diet if a chid provide enough calories but is deficient in poteinsg

very short ​

Answers

Answer:

Serious protein deficiency can cause swelling, fatty liver, skin degeneration, increase the severity of infections and stunt growth in children.

While true deficiency is rare in developed countries, low intake may cause muscle wasting and increase the risk of bone fracture

Hope this helps you :)

What is the correct formula for population growth? A. D+B-I-E B. E+D-B-I C. B+I-D-E D. I+E-B-D

Answers

Answer:

C.) B+I-D-E

Explanation:

The correct formula for population growth is the individuals added to the population via birth or immigration, minus the individuals removed from the population via death or emmigration. Therefore the answer is (B+I)-(D+E), or B+I-D-E

Why must you include the water soluble vitamins in your daily diet? They cannot be stored by the body because they are water soluble and are eliminated daily. They help carry oxygen in the blood They help digest fats. They help build body tissue.

Answers

Answer:

They cannot be stored by the body because they are water soluble and are eliminated daily.

Explanation:

Is the talc renewable?

Answers

Answer:

no.its nonrenewable.

talc is nonrenewable.

thanks.

You are observing a sample of cells in the lab to determine why they did not
divide properly. You notice that the chromosomes are lined up in the middle
of the cell, and the spindle fibers have extended towards them, but have not
attached. What could be damaged?

Answers

The kinetochore of the chromosomes


Explanation:
What could be damaged that is hindering the spindle fibers from attaching to the chromosomes are the kinetochores of the chromosomes.
At the metaphase stage of the cell division, the chromosomes align at the equator of the cell and the spindle fibers engage each chromosome at a region known as the kinetochore.
The kinetochore is made up of complex proteins and lies around the centromere region of the chromosome. The microtubules of the spindle fibers attach to this region during the metaphase stage.
If the kinetochore is damaged, it means the spindle fiber will not be able to attach to the chromosome.

_____ is work done to keep equipment in good working order.

Answers

This question is incomplete; here is the complete question:

_____ is work done to keep equipment in good working order.

A. Defragmentation

B. Preventive maintenance

C. Virus protection

D. A maintenance schedule

The correct answer is B. Preventive maintenance

Explanation:

Maintenance refers to the processes done on machinery or equipment to preserve its proper functioning. Moreover, this maintenance is preventive if it is done to prevent equipment from breaking down or having any malfunctioning. Besides this, preventive maintenance is globally recommended because in this way equipment used at home or in business works properly. According to this, the correct answer is preventive maintenance.

What is the main compound in plants

Answers

Answer:

Cellulose is found in the cell walls of plants and provides rigidity and strength. It is one of the most abundant organic compounds on Earth.

Explanation:

Select all that apply.
Pathogens
are disease-causing microorganisms
cannot be treated
can be fatal
m are only bacteria
SUBMIT ANSWER
ASK FOR HELP

Answers

Pathogens are:
Diseases-causing microorganisms
Can be fatal (just some of them)
Are only bacteria (there are some nonpathogenic bacteria that lives in the large intestines but 90% are just bacteria, viruses and fungus which bring diseases to its host)
They can be treated with antibodies

Is this statement true or false?

A hypothesis is a lucky guess.

Answers

True because it can either be wrong or right

Answer:

false!

Explanation: i took the test

is a pollen grain a cell

Answers

Long story short YES


(xiii) The most abundant component of urine is:
*Urea
* Water
*Ammonia
*Uric acid

Answers

Answer:

water

Explanation:

this is because when you take in water it helps in regulating the body's temperature hence pass out as urine

two waste products of metabolic state their source and how they are removed from the blood​

Answers

All the metabolic wastes are excreted in a form of water solutes through the excretory organs (nephridia, Malpighian tubules, kidneys), with the exception of CO2, which is excreted together with the water vapor throughout the lungs. The elimination of these compounds enables the chemical homeostasis of the organism.

DNA and RNA are structurally similar in some ways, but different in others. Identify whether each of the following statements applies to DNA, RNA. both or neither.
1. It can contain the purine adenine.
2. It can contain the pyrimidine uracil.
3. This contains the pyrimidine thymine.
4. In terms of base composition, the %T = %G.
5. This contains the sugar ribose.
6. The sugars are connected with a 3'-5' phosphodiester link.
7. It contains equal amounts of guanine and cytosine.
8. Bases are attached to sugars in an alpha N-glycosides linkage.

Answers

Answer:

DNA

It can contain the purine adenine

This contains the pyrimidine thymine

The sugars are connected with a 3'-5' phosphodiester link.

It contains equal amounts of guanine and cytosine. The percentage of A-T ,C-G are the same in DNA,,they are linked by hydrogen bonds.But varies in RNA.

Explanation:

.RNA

It can contain the purine adenine.

It can contain the pyrimidine uracil

This contains the sugar ribose. This is a 5C sugar with one oxygen atom deficient.The forms the lever for holding the bases and phosphate group

The sugars are connected with a 3'-5' phosphodiester link.This is the backbone of both DNA and RNA.It is formed between the sugars and the phosphate groups in both DNA and RNA.

None is made of  base composition, the %T = %G. This is wrong because purines must pair with pyrimidine,but not two purines or pyrimidine  pairing  as shown,

Bases are attached to sugars in an alpha N-glycosides linkage.This is wrong the beta N-glycisidic bonds are the linkages

PLS ANYONE IT'S URGENT Explain eubacteria ?

Answers

Eubacteria, or “true” bacteria, are single-celled prokaryotic microorganisms that have a range of characteristics and are found in various conditions throughout all parts of the world.

Answer:

Eubacteria are PROKARYOTIC organisms characterized by the lack of membrane and have peptidoglycan on cell wall when present.

Explanation:

They include most of the familiar bacteria such as E.

Hope it helps.

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