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alexira [117]
3 years ago
13

Pls help me , this is due in 2 hours

Biology
1 answer:
Blizzard [7]3 years ago
5 0

Answer:

A)

  1. Control: untouched dish
  2. Dependent variable: the different salt concentrations for preventing the growth of bacteria
  3. Independent variable: agar

B)

  1. Control: the group that is not exposed to any pollutant (5th group)
  2. Dependent variable: the effect of pollution on soybean plants
  3. Independent variable: the pollutant

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Explain the physics of light as it relates to photosynthesis. What is a pigment, what is a photon?
Sunny_sXe [5.5K]

Explanation:

photosynthesis, the process by which green plants and certain other organisms transform light energy into chemical energy. During photosynthesis in green plants, light energy is captured and used to convert water, carbon dioxide, and minerals into oxygen and energy-rich organic compounds.

a pigment is the natural colouring matter of animal or plant tissue.

a photon is a particle representing a quantum of light or other electromagnetic radiation. A photon carries energy proportional to the radiation frequency but has zero rest mass.

4 0
3 years ago
Read 2 more answers
Match the words in the left column to the appropriate blanks in the sentences on the right.
Rainbow [258]

Answer:

1. antibodies

2. hormones

3. kidney stones

4. transport proteins

5. protein-energy malnutrition

6. coenzymes

7. buffer

8. kwashiorkor

Explanation:

1. ANTIBODIES are proteins that aid the immune system in its fight against bacteria, viruses, and other foreign substance by binding to them and helping to inactivate or destroy them.

2. HORMONES are substances made of protein or lipid released into the bloodstream in order to direct physiological activity in the body.

3. A high-protein diet can increase the risk of KIDNEY STONES because the body will have an increased acid level.

4. TRANSPORT PROTEINS carry many substances through the blood or allow movement of substances in and out of cells.

5. PROTEIN-ENERGY MALNUTRITION is the phenomenon used to describe an inadequate intake of proteins and/or calorie content.

6. COENZYMES are molecules that play vital roles in the function of an enzyme. Coenzyme in form of vitamins are utilized by enzymes to catalyze chemical reactions.

7. Proteins can act like BUFFER (a substance with a stable pH) in order to regulate the acid-base balance in the body.

8. KWASHIORKOR is a malnutrition deficiency that result from the insufficiency of dietary protein, resulting in swelling in the feet, legs, and stomach among other symptoms.

6 0
3 years ago
In legumes, Rhizobium bacteria are more commonly observed in the roots. The Rhizobium provided usable nitrogen while the plant i
balu736 [363]

Answer:

(a) Symbiotic, as both benefit each other for food

Explanation:

Symbiosis is a close relationship between two species in which at least one species benefits. For the other species, the relationship may be positive, negative, or neutral. There are three basic types of symbiosis: mutualism, commensalism, and parasitism.

Mutualism is a symbiotic relationship in which both species benefit. An example of mutualism involves goby fish and shrimp. The nearly blind shrimp and the fish spend most of their time together. The shrimp maintains a burrow in the sand in which both the fish and shrimp live. When a predator comes near, the fish touches the shrimp with its tail as a warning. Then, both fish and shrimp retreat to the burrow until the predator is gone. From their relationship, the shrimp gets a warning of approaching danger. The fish gets a safe retreat and a place to lay its eggs.

Commensalism is a symbiotic relationship in which one species benefits while the other species is not affected. One species typically uses the other for a purpose other than food. For example, mites attach themselves to larger flying insects to get a “free ride.” Hermit crabs use the shells of dead snails for homes.

Parasitism is a symbiotic relationship in which one species (the parasite) benefits while the other species (the host) is harmed. Many species of animals are parasites, at least during some stage of their life. Most species are also hosts to one or more parasites.

So. we can easily say that   the relationship between them is symbiotic.

7 0
3 years ago
A scientist raised a species of fruit flies over several generations in separate containers. The diagram shows what
White raven [17]

Answer:

This is allopatric speciation. The organisms were separated from each other by the containers. The separation caused them to evolve to the point that they were more likely to mate with each other than with a member of another tank.

Explanation:

4 0
3 years ago
HUMERO - DELTOIDES - COSTILLAS – TIBIA – CODO – BICEPS – ADUCTOR – MUÑECA – CUBITO – PECTORAL – CADERA – GEMELOS– VERTEBRAS – CL
professor190 [17]

Answer:

  • <u>Huesos:</u> HUMERO, COSTILLAS, TIBIA, CUBITO, VERTEBRAS, CLAVICULA, ROTULA, FEMUR, OMOPLATOS, FALANGES.
  • <u>Músculos: </u>DELTOIDES, BICEPS, ADUCTOR, PECTORAL, GEMELOS, DORSAL, CUADRICEPS, IZQUIOTIBIAL, CORAZON,  ABDOMINAL.
  • <u>Articulaciones: </u>CODO, MUÑECA, CADERA, TOBILLO, HOMBRO, CRANEO.

Explanation:

Los huesos son órganos que tienen la función de dar estructura, protección y soporte al cuerpo. A los huesos se le unen los músculos, los cuales hacen que los huesos se muevan al contraerse estos. Las articulaciones unen los huesos entre sí y permiten junto con los músculos el movimiento del cuerpo y de sus diferentes partes.

8 0
3 years ago
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