A. Producer
B. Primary consumer
C. Secondary consumer
D. Tertiary consumer

Answer:

I'm pretty sure it's B. Primary consumer.

Explanation:

The protozoa eats the algae, making it a primary consumer.

Answer:B

Explanation:The reason why the answer is a because that protozoa is mostly a decomposer by eats organic matter or debris.Also primary consumers are mostly described as primary consumers or in other cases it mostly depends on the food web it self.Hope it helps again!

3. Which biomolecule is properly matched to its monomer?
A nucleic acid : amino acid
B polypeptide : 1 glycerol + 3 fatty acids
Clipid : nucleotide
D carbohydrate : monosaccharide
A

Will mark brainliest and give 18 points

Which of the following facts about genes is incorrect?
A.A gene can code for a specific protein
B.A gene can exist in alternate forms called alleles
C.A gene undergoes crossing over during meiosis and can switch chromsomes
D.A gene that is very similar in sequence in a human and in a bacterium is probably a recent mutation.
E.If parents do not express a gene but their child does, that gene is probably recessive.

An algal bloom in a water system is most likely caused by?

The evidence of Evolution are....

A certain substance is used for insulation by animals in cold climates, as well as for long term energy storage. A similar molecule makes up the cell walls of animals. This must be a:

HELP PLEASE IVE BEEN STUCK ON THIS FOR 30 MINUTES

Lea el párrafo que aparece abajo y complete con las siguientes palabras que faltan: hereditaria; cromatina; equitativa; cromátidas; cromosomas; ADN; genes; duplica; brazos y centrómero

1) Define ecosystem explain in own words :

Which of the following substances is/are involved in
oxidative phosphorylation of cellular respiration?

T-lymphocytes are created in the bone marrow and then developed in the

spleen.

adenoids.

thymus.

tonsils.

Which of the following is required in order for homeostasis to be maintained?

Select one:

An organism should have an internal environment that differs from its external environment.

There should be a constant input of stimuli to receptors so that internal conditions remain constant.

Passage of materials across cell membranes need to occur at a continuously rapid rate.

An organism should be able to move to a new environment when conditions change.

Scientists have discovered a fossil skeleton of a whale-like creature that lived in the early Eocene epoch. The skeleton shows an organism with large fore and hind limbs with distinct toes. Fossil skeletons of closely related species from later periods show organisms lacking hind limbs. Which conclusion does this observation best support?

A. Ancestors of whales may once have been able to walk.

B.Ancestors of whales had fewer bones than modern whales.

C. Whales and their ancestors have always been ocean dwellers.

D. Whales and their ancestors have always been the largest living ​

Which statement BEST describes the relationship between MPF and the cell cycle?

8. Most importantly, adaptations must improve a
species' ability to:
a. Eat
b. Escape threats
c. Get oxygen and water
d. Reproduce


~i’ll give u a brainly~

A researcher recently discovered a new species of bacteria in the body of a tubeworm living near a hydrothermal vent. He compared the DNA of this new bacterial species to the DNA of four other species of bacteria. The DNA sequences came from the same part of the bacterial chromosome of all four species. According to these data, the unknown bacterial species is most closely related to

he bodies of wild-type fruit flies are colored by dark pigments, but an X-linked recessive mutation can confer a yellow, unpigmented phenotype. However, feeding silver salts to larvae results in adult flies that phenocopy the yellow phenotype. You are conducting epistasis experiments in fruit flies to understand the genetics of pigmentation. A rival research lab sends you a vial of yellow-bodied flies for your experiments. How can you tell whether these flies are mutants instead of phenocopies

what is a flexible double-layered sheet that makes up the cell membrane and forms a barrier between the cell and its surroundings

HELP IT DUE NOW !!!!!!!!!!!!!!!
An area that is in the early stages of secondary succession will typically contain

rock lichens.

evergreen trees.

perennial shrubs.

annual grasses.

If sea lamprey increase in population and decrease the native fish population, the sea lamprey population will eventually collapse (decrease rapidly). This would be an example of _______ feedback. 1. Positive 2. Negative 3. Neutral 4. None of the above

Light energy is changed to cell energy in stage 1 of photosynthesis. True or false

Some barnacles derive nutrients from living on the flesh of whales. This does not cause significant pain to the whales. Which type of symbiotic relationship do these organisms have?
Commensalism
Mutualism
Predation
parasitism

The major goal of the Social Gospel movement in the late 19th and early 20th century was to: Promote the spread of Protestantism in United States territories Promote the spread of Protestantism in United States territories Draw the attention of Protestant churches to the plight of the urban poor Draw the attention of Protestant churches to the plight of the urban poor Encourage support for Charles Darwin's theory of biological evolution Encourage support for Charles Darwin's theory of biological evolution Spread Nativist sentiments

Dimples are dominant; no dimples are recessive. Mr. Dowling is heterozygous for dimples, and Mrs. Dowling is also heterozygous for dimples. Whatcare the possibilities of their offspring?

During an experiment in Science class, Jorge notices that the liquid in the
thermometer moved up when he added calcium chloride (CaCl2) to a baking soda
solution. What type of energy transformation is demonstrated in the experiment?
Chemical to kinetic
Chemical to thermal
Thermal to chemical
Thermal to kinetic

Using the letter "T" and "t" with Tall height being dominant over short height. A heterozygous man for height marries a heterozygous woman for height. What is the correct F1 phenotypes for this cross?

Having Freckles (F) is dominant over not having Freckles (f). If a person that is FF has children with a person that is FF, what is the probability of their children will have Freckle

a
0%
b
25%
c
50%
d
100%

Which phrase best describes what a soil horizon is? Question 3 options: the bottom layer of a soil profile each layer of a soil profile the place where two soil profiles meet the place where a soil profile meets bedrock

16. Explain how the following affect the rate of enzyme activity. a.Substrate Concentration:
b. pH:
c. Temperature:

importance of bacteria​