1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Ivan
3 years ago
7

Why do scientists classify a sponge as a simple animal and not a plant?

Biology
1 answer:
olganol [36]3 years ago
7 0

sponges must get their food by "eating" organic matter in their environment; they do not make their own food like plants.

You might be interested in
Male satin bower birds adorn stations called bowers with parrot feathers, flowers, and other bizarre ornamentations in order to
Alina [70]
The answer would be: C) sexual selection.
Sexual selection happens where one of the individuals choose the partner to sex based on some criteria. In this case, the ability to have a beautiful bower will determinate the ability of the bird to have sex and produce offspring. The criteria are not limited to visual. It could be diverse in other cases, like a deeper croak in frog
5 0
3 years ago
The population in South Africa is more prone to sickle cell anemia (genotype "ss"). People with genotype "ss" survive only up to
lions [1.4K]
The answer is stabilizing selection.

<span>Sickle-cell anemia is a recessive disorder caused by the presence of two recessive alleles "s", so genotype is "ss". This disorder is characterized by sickle hemoglobin. In an area with malaria, heterozygous individuals "Ss" (with one dominant allele and one recessive allele) have an advantage. These individuals will have both normal and sickle hemoglobin. But pathogen that causes malaria affect only normal hemoglobin, so heterozygous individuals will have half of the hemoglobin resistant to the pathogen and those individuals are resistant to malaria.</span>

Stabilizing selection favors heterozygotes Ss,  disruptive selection favors dominant (SS) and recessive (ss) homozygotes, while directional selection favors dominant (SS) or recessive (ss) homozygote. Since in this example, people with genotype Ss (heterozygotes) are in advantage, then this is an example of stabilizing selection.

7 0
4 years ago
Categorize each term as something that is typical of a scientific theory, a scientific hypothesis, or both.
Aleksandr-060686 [28]

Answer:

Explanation:

Scientific theory: a well established, highly reliable explanation

Scientific hypothesis: makes predictions of future events/

Both: based on observations of natural phenomenons/ can be tested by many researchers

5 0
3 years ago
Read 2 more answers
The rabies virus is 12 kb in length. Based on the coating ratio of nucleoprotein (n), what would be the total number of nucleopr
Molodets [167]

Rabies virus nucleoprotein encapsidates the genomic and antigenomic RNA of RV to form the viral ribonucleoprotein complesx. Rabies virus is nonsegmented negative strand RNA virus within the Rhabdoviridae family.

It is zoonotic , aftal and progressive neurological infection caused by rabies virus of genus lyssavirus and family rhabdoviridae.Its genome is 12 kb in length and encodes 5 monocistronic mRNAs encoding the nucleocapsid  protein, matrix, phosphoprotein, the trans-membrane, glycoprotein and viral RNA depent RNA polymerase.

Rabies virus vaccine vector tolerate large , multiple foreign genes , upt to 6.5 kb and live rabies virus vector with very low pathogenic potential can be constructed. It contains foreign glycoproteins such as hepatitis E2 or HIV .

To learn more about the Rabies virus here

brainly.com/question/28136082

#SPJ4

4 0
2 years ago
Suppose there are 500 units of energy available at the producer level of the energy pyramid. Approximately how many units of ene
shusha [124]
The answer to this question with the options presented in the problem would be A. 50.

It is said by experts that in the energy pyramid, 90% of energy is lost for life processes such as photosynthesis, respiration, and the like. So this means that only 10% will remain for the consumer to have. That would be saying that if suppose there are 500 units of energy available at the producer level of the energy pyramid, to get the units of energy available to the first-level consumer is  to have the 10% of 500 which is 50.
6 0
3 years ago
Read 2 more answers
Other questions:
  • How did the human population change with the development of agriculture ?
    9·2 answers
  • Most of the wood used for fuel comes from native forests around the world. The harvesting of wood for an energy source has serio
    14·2 answers
  • Three students attempt to define what a circle is. Can you match the teacher's comments to the definitions?
    12·1 answer
  • When setting up an experiment why is it necessary to have a control group
    9·2 answers
  • Olivia listed possible processes and materials that form sedimentary rock
    6·1 answer
  • The primary of a function of the cell wall is to?
    14·2 answers
  • What ultimatum did austria deliver to serbia?
    7·2 answers
  • 1) Animals can cause what type of weathering? and
    11·1 answer
  • HELP PLEASE I WILL GIVE BRAINLIEST
    12·1 answer
  • Michael was watching the rain hit the sidewalk in front of his house. After a few minutes, he noticed a change in the precipitat
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!